Deviation correcting device and method for horizontal spiral drilling method pipe roofing construction

Abstract

The invention discloses a deviation rectifying device and method for horizontal spiral drilling method pipe roofing construction. The device comprises a pipe roofing steel pipe, a reaming mechanism, a drill bit guiding deviation rectifying mechanism, a guiding propelling mechanism and an unearthing mechanism. The drill bit guiding and correcting mechanism comprises a drill bit and a telescopic sleeve, a universal ball mechanism, a first telescopic connecting rod joint, a first universal joint, a control steering gear, a second universal joint, a second telescopic connecting rod joint and a third universal joint are sequentially connected in the telescopic sleeve, and the front end of the universal ball mechanism is connected with the drill bit; the method comprises the following steps: 1, assembling and debugging the device; 2, drilling by a drill rod, and monitoring a drill bit; 3, correcting the deviation of the drill bit; and 4, adjusting is finished, and drilling is recovered. According to the method, the orientation of the drill bit can be monitored in real time in the horizontal pipe roofing drilling process, deviation of the drill bit can be found in time, irreversible deviation of the pipe roofing steel pipe in the drilling process is prevented, construction safety is guaranteed, and good social and economic benefits are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of pipe curtain deviation correction, and in particular relates to a deviation correction device and method for pipe curtain construction using a horizontal spiral drilling method. Background Art

[0002] With the rapid development of urban rail transit, the transportation network is becoming increasingly dense, and the number of new underground passages, subway tunnels and other projects that cross or pass under existing buildings is increasing. This type of construction activity will inevitably cause deformation and increase the internal force of nearby existing buildings. When it exceeds its bearing capacity or allowable value, it may cause structural damage and even endanger the safety of existing buildings. It can be seen that this type of construction faces great difficulty and extremely high safety risks. In order to reduce the impact of engineering activities on existing buildings, a pipe curtain is built between existing buildings and new projects to form an underground space enclosure structure, and then engineering construction activities are carried out, thereby reducing the interaction and impact between the two and protecting the safety of existing buildings. The pipe curtain method can prevent underground construction from affecting ground transportation and other use functions during construction, and the ground settlement is very small, which will minimize the impact on underground pipelines and surrounding buildings in the construction area.

[0003] The difficulty of pipe curtain construction lies in the precision control of pipe curtain jacking and the control of surface deformation during pipe curtain construction. Horizontal spiral drilling method is widely used in laying steel pipes and casings to cross railway and highway subgrades. There are two main methods of horizontal spiral drilling, one is track-type horizontal spiral drilling, and the other is hanger-type horizontal spiral drilling. The equipment included in the track-type horizontal spiral drilling method includes: drilling rig casing, drilling tool spiral drill rod, etc. Track-type spiral horizontal drilling can also use casing lubrication system, guidance system and positioning system. The spiral drill rig is installed on the track. It moves forward and backward along the track, providing propulsion and rotation force at the same time, which are transmitted to the drill rod during drilling. The drill rod consists of connected spiral drill rods, which are connected to the drilling rig and the drilling tool at the head and tail respectively. Torque and thrust are generated by the drilling rig and transmitted to the drilling tool through the spiral drill rod. The drilling tool rotates to cut the soil layer, and the soil residue is discharged backward along the spiral drill rod, while the drilling rig pushes. Repeat the operation to complete the laying of casing. When encountering uneven hard and soft formations, the drilling direction is not properly controlled, and the direction will deviate, causing the steel pipe to deviate from the jacking direction. Currently, there is a lack of a deviation correction device and method for horizontal spiral drilling pipe curtain construction. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a deviation correction device for horizontal spiral drilling pipe curtain construction in view of the deficiencies in the above-mentioned prior art. The device has a novel and reasonable design, which can realize real-time monitoring of the drilling direction during the horizontal pipe curtain drilling process and can make timely corrections when the drill bit deviates, thereby ensuring that the deviation generated when the pipe curtain is drilled to the predetermined position is within the prescribed allowable range, so as to ensure the normal progress of subsequent construction.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a deviation correction device for horizontal spiral drilling pipe curtain construction, characterized in that it includes a pipe curtain steel pipe, a hole expansion mechanism, a drill guide deviation correction mechanism, a guide propulsion mechanism and an excavation mechanism; the drill guide deviation correction mechanism includes a drill bit and a telescopic sleeve, a universal ball mechanism, a No. 1 telescopic connecting rod joint, a No. 1 universal joint, a control steering device, a No. 2 universal joint, a No. 2 telescopic connecting rod joint and a No. 3 universal joint are sequentially connected in the telescopic sleeve, and the front end of the universal ball mechanism is connected to the drill bit; the outside of the telescopic sleeve is provided with two telescopic sleeve scraping threads, the rear end of the outer side of the telescopic sleeve is provided with a hexagonal telescopic sleeve hexagonal slider, the inner wall of the telescopic sleeve hexagonal slider is connected to the outer side of the center bearing as a whole, and the center bearing is provided with a center bearing ball;

[0006] The control steering gear includes an annular rack, a rotating gear, a gear motor, a guide center column, a guide hoop, a worm, a transmission gear set, a worm motor, an external sleeve of a steering controller, a conductive slip ring structure and a control three-axis magnetic sensor; the outer diameter of the annular rack is the same as the inner diameter of the telescopic sleeve and is connected by welding, the inner side of the annular rack is a toothed guide rail, and there are two annular racks that are coaxially parallel; the outer diameter of the external sleeve of the steering controller is smaller than the inner diameter of the annular rack, and eight rotating gear grooves are distributed on the outer side of the external sleeve of the steering controller, and four rotating gear grooves are divided into a group, and the two groups of rotating gear grooves are spaced front and rear from the external sleeve of the steering controller The ends are at the same distance, and a rotating gear center axis hole is opened on the side of the rotating gear groove; the rotating gear passes through the rotating gear center axis hole through the bearing structure and is connected to the rotating gear groove; the rotating gear center axis passes through the rotating gear center axis hole and is connected to the gear motor, and the gear motor is fixed to the inner wall of the outer sleeve of the steering controller; an upper platform and a lower platform are arranged in the outer sleeve of the steering controller, and a guide clamp groove and a wire collection slot are opened on the upper platform and the lower platform, and a straight groove-shaped channel is formed in the middle of the upper platform and the lower platform, and the guide clamp groove passes through the upper platform and the lower platform, and does not pass through the arc surfaces on both sides of the straight groove-shaped channel; the upper part of the upper platform and the lower part of the lower platform are both provided with There are two symmetrical worms, one side of the worm is coaxially connected to a gear of the transmission gear set, and the other gear of the transmission gear set is coaxially connected to a worm motor; rectangular protrusions are provided on the upper and lower sides of the guide hoop, and the plane of the rectangular protrusion is provided with a worm thread groove, which meshes with the worm, and a guide ball groove is provided on the inner ring surface of the guide hoop; a guide ball hole is provided near the end of the guide center column, and the guide hoop and the guide center column form a bearing structure through the guide ball groove, guide ball and guide ball hole, so that the guide center column can rotate independently relative to the guide hoop; a conductive slip ring structure is provided in the middle of the guide center column, The conductive slip ring structure includes a wire take-up drum, a single-axis roller, a conductive slip ring ball, a brush wire, a conductive rail and a wiring port. A wire take-up drum is arranged on the upper and lower parts of the conductive slip ring structure, and the two wire take-up drums pass through the wire take-up port slide grooves of the upper platform and the lower platform respectively; the single-axis roller is located on both sides of the wire take-up drum and its axis is located on the side of the wire take-up drum, and the single-axis roller is in contact with the upper platform and the lower platform; the wiring port is located on the inner side of the wire take-up drum, and the cable passes through the wire take-up drum and is connected to each wiring port; the brush wire is connected to the wiring port; the conductive rail is in contact with the brush wire; the conductive rail and the central guide column are a rigid whole; the control three-axis magnetic sensor is installed on the upper part of the upper platform or the lower part of the lower platform.

[0007] The above-mentioned correction device for horizontal spiral drilling pipe curtain construction is characterized in that: the front end of the drill bit is in a Y-shaped structure, the Y-shaped structure is in a forward protruding state, the front end of the Y-shaped structure is provided with a semicircular scraper for scraping soil, and the rear end of the drill bit is connected to the reaming sleeve; a drill bit three-axis magnetic sensor is provided at the center of the drill bit, a drill bit bolt is provided at the rear end of the drill bit, and a single-pin plug is connected to the rear end of the drill bit bolt. There is a circular channel at the axis of the drill bit and the drill bit bolt, and the cable of the drill bit three-axis magnetic sensor passes through and is connected to the single-pin plug; the universal ball mechanism includes a universal ball fixing ring, a universal ball ball, a universal ball and a single-pin socket. The outer diameter of the universal ball fixing ring is the same as the inner diameter of the telescopic sleeve, and it is fixedly connected to the front end of the telescopic sleeve. The inner side of the universal ball fixing ring is a spherical arc surface and its arc surface is evenly arranged with multiple circles of universal ball ball holes for installing universal ball balls. The front end of the universal ball is a drill bit threaded hole, the drill bit bolt is connected to the drill bit threaded hole, and the bottom of the drill bit threaded hole is a single-pin socket.

[0008] The above-mentioned deviation correction device for horizontal spiral drilling pipe curtain construction is characterized in that: the No. 1 telescopic link section includes a No. 1 telescopic link and a No. 1 telescopic link sleeve, the No. 1 telescopic link sleeve is coaxially connected with the universal ball as a whole, the inner side of the No. 1 telescopic link sleeve is a toothed section, and the axis of the No. 1 telescopic link sleeve is provided with a No. 1 cable protection tube; the outer side of the No. 1 telescopic link is a gear section meshing with the toothed section; the axis of the No. 1 telescopic link is a No. 1 telescopic link cable hole, the outer diameter of the No. 1 cable protection tube is smaller than the No. 1 telescopic link cable hole, so as to protect the cable during the telescopic process of the No. 1 telescopic link section, the bottom of the single-pin jack is connected to the cable and passes through the No. 1 cable protection tube, which is used to power the drill bit three-axis magnetic sensor and transmit data;

[0009] Universal joint No. 1 includes two universal joint fork shafts, universal joint rotating bearings, cross shafts and rubber hoses. A universal joint fork shaft cable hole connected to the cable hole of the No. 1 telescopic link is provided at the axis of the universal joint fork shaft. The universal joint fork shaft has two symmetrical outer arms on one side, and each outer arm has a universal joint rotating bearing hole at the end. The diameter of the universal joint rotating bearing hole is large at the middle end and small at both ends, which is used to clamp the universal joint rotating bearing. The cross shaft is respectively connected to the two universal joint fork shafts through four universal joint rotating bearings, so that the universal joint fork shaft can rotate through the universal joint rotating bearing. There is a circular channel in the middle of the cross shaft, and the rubber hose passes through the circular channel and is connected to the universal joint fork shaft cable holes on both sides to protect the cables. The rear end of the No. 1 telescopic link is welded to the No. 1 universal joint fork shaft;

[0010] The No. 2 universal joint and the No. 3 universal joint have the same structure as the No. 1 universal joint, and the No. 2 telescopic connecting rod joint has the same structure as the No. 1 telescopic connecting rod joint.

[0011] The above-mentioned deviation correction device for horizontal spiral drilling pipe curtain construction is characterized in that: the reaming mechanism includes a reaming sleeve and a central support of the reaming sleeve, the outer shape of the reaming sleeve is a variable diameter spiral structure, a variable diameter hole penetrating front and back is arranged in the reaming sleeve, and there are evenly distributed one-way gears at the variable diameter position of the variable diameter hole. A hexagonal telescopic sleeve slide rail is welded on the inner wall of the small end of the variable diameter hole, and three busbar outer grooves are evenly distributed inside the large end of the variable diameter hole. There are three protrusions on the outside of the reaming sleeve that gradually widen from front to back. Thread, a center support hole for the expanding sleeve is opened on the rear side of the raised thread, a center support cable hole is provided at the bottom of the center support hole of the expanding sleeve, the center support cable hole is connected to the outer groove of the busbar, and is used to connect the control cable of the center support of the expanding sleeve to the transmission sleeve, the center support of the expanding sleeve is a telescopic cylinder and is embedded in the center support hole of the expanding sleeve, the size of the hole at the front end of the expanding sleeve is larger than the outer diameter of the scraping thread of the telescopic sleeve, and the size of the hexagonal slider of the telescopic sleeve is the same as the hexagonal telescopic sleeve slide rail in the expanding sleeve.

[0012] The above-mentioned correction device for horizontal spiral drilling pipe curtain construction is characterized in that: the guide propulsion mechanism includes a transmission sleeve, a drill rod propeller, and a hexagonal drill rod, one side of the transmission sleeve is a matching one-way gear meshing with the one-way gear; the central axis of the transmission sleeve is a hexagonal drill rod channel that cooperates with the hexagonal drill rod, and six fixing bolts are evenly distributed at the tail of the transmission sleeve; the middle part of the outer side of the transmission sleeve is a central supporting conductive slip ring, and the outer side of the central supporting conductive slip ring is provided with a sliding wire inside the central supporting busbar, and the cable extends to the rear of the transmission sleeve and is connected to the aviation plug through a spiral wire.

[0013] The above-mentioned correction device for horizontal spiral drilling pipe curtain construction is characterized in that: the drill rod thruster includes a drill rod thrust cylinder, a hollow drill rod thrust cylinder, a drill rod thruster base, a drill rod thruster cover plate, a micro-telescopic motor, a limit ball control ring and a hexagonal drill rod limit ball; two drill rod thrust cylinders and one hollow drill rod thrust cylinder are evenly embedded in the transmission sleeve, and the drill rod thrust cylinder and the hollow drill rod thrust cylinder have three transmission sleeve cable holes on the rear side; the middle part of the drill rod thruster base is a drill rod channel of a hexagonal structure, and a groove is arranged on the drill rod thruster base close to the drill rod channel side of the hexagonal structure, and six hexagonal holes for placing hexagonal drill rod limit balls are evenly distributed on the bottom of the groove. A drill rod limiting ball groove, six inclined protrusions are provided at the bottom of the limiting ball control ring, and the six inclined protrusions correspond to the six hexagonal drill rod limiting ball grooves one by one. There are three micro-telescopic motor connecting blocks on the outside of the limiting ball control ring, and the micro-telescopic motor connecting blocks are welded to the telescopic rod of the micro-telescopic motor. The micro-telescopic motor is fixed on the drill rod thruster cover plate, and the drill rod thruster cover plate is welded to the drill rod thruster base. There are three drill rod thruster cylinder sleeve holes on the outside of the drill rod thruster cover plate and the drill rod thruster base. The telescopic rod of the drill rod thruster cylinder and the hollow drill rod thruster cylinder is extended into the drill rod thruster cylinder sleeve hole and fixedly connected to the drill rod thruster cover plate, and the axis of the hollow drill rod thruster cylinder is provided with a penetrating hole.

[0014] The above-mentioned correction device for horizontal spiral drilling pipe curtain construction is characterized in that: the front end of the hexagonal drill rod is a transmission bolt, the transmission bolt is connected to the No. 3 universal joint through the transmission bolt hole, the transmission bolt axis has a transmission bolt cable hole that passes through the front and back for threading cables, the cross-section of the hexagonal drill rod is a regular hexagon, and the six edges of the hexagonal drill rod are equidistantly arranged with limiting ball grooves, and the limiting ball grooves are provided with limiting balls for controlling the forward and backward movement of the hexagonal drill rod.

[0015] The above-mentioned correction device for horizontal spiral drilling pipe curtain construction is characterized in that: the unearthing mechanism includes a first unearthing screw, an extended unearthing screw, a cable centering plate, a socket fixing plate, an aviation plug, an aviation socket, a spiral wire and an external conductive slip ring, flanges are arranged at both ends of the first unearthing screw, the flange and the first unearthing screw are reinforced by ribs, a rigid hole socket connected to the aviation plug is arranged at the front end of the first unearthing screw, a hexagonal drill rod driven channel adapted to the hexagonal drill rod and an ordinary circular channel are arranged in sequence from front to back in the first unearthing screw, the aviation socket and the hexagonal drill rod driven channel are separated by a cable drill rod isolation sleeve, three cable holes are evenly distributed on the outside of the hexagonal drill rod driven channel, and the three cable holes are connected to the three transmission sleeves The cable holes on the barrel correspond one to one, and six bolt holes corresponding to the six fixing bolts are arranged on the outer edge of the flange. The first unearthed screw and the transmission sleeve are connected and fixed by fixing bolts and fixing nuts; the inner length of the extended unearthed screw is an ordinary circular channel, the cable centering disk is fixedly installed in the ordinary circular channel, the socket fixing disk is fixed on the outside of the cable centering disk, and the socket fixing disk connects various cables to the aviation socket; a cable protection tube is arranged between the two cable centering disks, and the first unearthed screw and the extended unearthed screw are connected by a spiral wire with aviation plugs at both ends; an external conductive slip ring is fixed on the reaction wall where the axis of the rear of the pipe curtain drilling rig is located, which is used to connect various cables to the operating system and prevent the cables from being torsionally damaged during rotation.

[0016] The above-mentioned correction device for horizontal spiral drilling method pipe curtain construction is characterized in that: a pipe curtain rail is arranged on the side of the reaction wall facing the pipe curtain steel pipe, a pipe curtain drilling rig connected to the operating system is arranged on the rear side of the pipe curtain steel pipe, a supporting structure is installed on the outside of the pipe curtain steel pipe, a reference pedestal is also arranged next to the reaction wall, and a reference three-axis magnetic sensor connected to the operating system is arranged on the reference pedestal.

[0017] At the same time, the present invention also discloses a deviation correction method for horizontal spiral drilling pipe curtain construction, which is characterized in that the method comprises the following steps:

[0018] Step 1: After assembling and debugging the device, turn off the pipe curtain drill, set the initial value of the three-axis magnetic sensor in the operating system, set the drilling direction to the X-axis, the horizontal plane perpendicular to the drilling direction to the Y-axis, the height to the Z-axis, and set the reference three-axis magnetic sensor as the origin, record the initial height difference h0 and the initial horizontal distance y0 between the drill bit three-axis magnetic sensor and the reference three-axis magnetic sensor;

[0019] Step 2: Drilling and monitoring the drill bit:

[0020] The drill bit is returned to its position, and the pipe curtain drilling rig starts working, pushing the pipe curtain sleeve and the extended excavation screw forward. During the drilling process, the total drilling depth and the current total height difference h between the drill bit three-axis magnetic sensor and the reference three-axis magnetic sensor are recorded every time a certain depth is drilled. i , current total horizontal distance y i , calculate the offset of the total jacking depth and the offset of the jacking depth of the i-th section Where i is the number of times the pipe curtain drilling rig works and i≥1, h i-1 is the total height difference between the drill bit triaxial magnetic sensor and the reference triaxial magnetic sensor for the i-1th measurement, y i-1 is the total horizontal distance measured by the drill bit three-axis magnetic sensor and the reference three-axis magnetic sensor for the i-1th time;

[0021] Step 3: Drill bit correction, the process is as follows:

[0022] Step 301: When the offset of the total jacking depth Δ and the offset of the jacking depth of the i-th section Δ i When any value exceeds the allowable range, stop drilling immediately and adjust the upper platform of the outer sleeve of the steering controller to a horizontal level through the console;

[0023] Step 302: Determine the drilling length d required for correction according to the bending strength of the pipe-roof steel pipe. i , according to the formula Calculate the correction angle α;

[0024] Step 303, drilling a guide hole according to the correction angle: controlling the expansion sleeve to be centrally supported and stretched and closely attached to the pipe curtain sleeve through the operating system, and the pipe curtain drilling rig pulls the extended excavation screw backward until the one-way gear of the expansion sleeve is separated from the matching one-way gear of the transmission sleeve;

[0025] Step 304, correcting the drilling of the guide hole: the upper platform of the outer sleeve of the steering controller is in a horizontal state, the rotating gear of the steering controller is rotated until the upper platform is parallel to the correction angle, and then the worm motor is rotated to adjust the position of the guide clamp until the drill bit reaches the correction angle;

[0026] Start the pipe curtain drilling rig again, so that the first excavation screw rotates and drives the hexagonal drill rod to rotate, thereby driving the drill bit to rotate; then control the drill rod thruster so that the micro-telescopic motor is in a retracted state, control the drill rod thrust cylinder and the hollow drill rod thrust cylinder to move forward, and at the same time extend the micro-telescopic motor so that the hexagonal drill rod limit ball is stuck in the limit ball slot of the hexagonal drill rod, so that the drill rod thrust cylinder and the hollow drill rod thrust cylinder can push the hexagonal drill rod forward, thereby pushing the telescopic sleeve and the drill bit forward; when the drill rod thrust cylinder and the hollow drill rod thrust cylinder reach the maximum stroke, tighten the micro-telescopic motor, return the drill rod thrust cylinder and the hollow drill rod thrust cylinder to the initial position, and then control the drill rod thrust cylinder and the hollow drill rod thrust cylinder to move forward, and at the same time extend the micro-telescopic motor until the hexagonal slider of the telescopic sleeve moves to the end of the telescopic sleeve slide rail on the reaming sleeve or the drill bit has been corrected to within the allowable offset distance;

[0027] If the drill bit is still not corrected to within the offset distance, retract the micro telescopic motor, the center support of the reaming sleeve, the drill rod propulsion cylinder and the hollow drill rod propulsion cylinder, start the pipe curtain drilling rig, push the transmission sleeve forward until the one-way gear of the reaming sleeve is engaged with the matching one-way gear of the transmission sleeve, so that the reaming sleeve rotates and drills forward until the telescopic sleeve is completely retracted;

[0028] Step 305, repeating step 2 to step 304 until the drill bit is corrected to within the allowable offset distance and the drilling direction of the drill bit returns to the X axis;

[0029] Step 4: Adjustment completed, drilling resumed: Continue monitoring during the drilling process. If the drill bit deviates again, stop drilling and perform trimming again until the pipe curtain drilling is completed.

[0030] The beneficial effects of the present invention are that the design is novel and reasonable, and the drill direction can be monitored in real time during the horizontal pipe curtain drilling process. Deviations in the drill bit can be discovered in time to prevent the pipe curtain steel pipe from irreversibly shifting during the drilling process, thereby ensuring the safety of construction. Each monitoring and operating system is connected to the operating system through a cable, thereby ensuring the convenience of observation and operation during the construction process, realizing the intelligence, integration and convenience of operation of the construction process, and being able to stop drilling and correct deviations when drilling in uneven strata so that the borehole does not deviate from the predetermined trajectory, resulting in more stable hole quality and higher efficiency. After the drill bit deviates, it can be corrected in time to ensure that the deviation generated when the pipe curtain is drilled to the predetermined position is within the prescribed allowable range. The present invention has good social and economic benefits and is easy to promote and use.

[0031] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall cross section during the drilling process of the present invention;

[0033] Figure 2 It is a schematic diagram of the internal section of the expansion sleeve of the present invention;

[0034] Figure 3 is a schematic diagram of the expansion sleeve of the present invention;

[0035] Figure 4 It is a schematic diagram of the overall cutaway of the guide mechanism of the present invention;

[0036] Figure 5 It is an overall schematic diagram of the telescopic sleeve of the present invention;

[0037] Figure 6 It is a schematic diagram of the internal structure of the steering controller of the present invention;

[0038] Figure 7 It is a front view of the internal structure of the steering controller of the present invention;

[0039] Figure 8 is an overall schematic diagram of the outer sleeve of the steering controller of the present invention;

[0040] Fig. 9 It is an overall schematic diagram of the conductive slip ring structure of the steering controller of the present invention;

[0041] Fig.10 It is a schematic cross-sectional view of the conductive slip ring structure of the steering controller of the present invention;

[0042] Fig.11 It is an exploded schematic diagram of the universal joint mechanism of the present invention;

[0043] Fig.12 This is an overall schematic diagram of the guide clamp of the present invention;

[0044] Fig.13 It is a schematic diagram of the internal structure of the telescopic connecting rod joint of the present invention;

[0045] Fig.14 It is a cross-sectional schematic diagram of the universal ball mechanism of the present invention;

[0046] Fig.15 It is a disassembled schematic diagram of the universal ball mechanism of the present invention;

[0047] Fig.16 It is an overall schematic diagram of the hexagonal kelly thruster of the present invention;

[0048] Fig.17 It is a schematic diagram of the explosion of the internal structure of the hexagonal kelly thruster of the present invention;

[0049] Fig.18 It is a schematic cross-sectional view of the internal structure of the hexagonal kelly thruster of the present invention;

[0050] Fig.19It is a schematic diagram of the matching relationship between the hexagonal kelly thruster, the transmission sleeve and the reaming sleeve of the present invention;

[0051] Fig. 20 It is a schematic diagram of the connection mode between the transmission sleeve and the first excavation screw rod of the present invention;

[0052] Fig.21 It is a schematic cross-sectional view of the internal structure of the first excavation screw rod of the present invention;

[0053] Fig. 22 It is a schematic diagram of the connection mode between the hexagonal kelly drill rod and the guide mechanism of the present invention;

[0054] Fig.23 It is a schematic cross-sectional view of the internal structure of the drill bit of the present invention;

[0055] Fig.24 This is a schematic diagram of the first working state of the guide mechanism of the present invention;

[0056] Fig.25 It is a schematic diagram of the second working state of the guide mechanism of the present invention;

[0057] Fig.26 This is a schematic diagram of the first working state of the guiding propulsion mechanism of the present invention;

[0058] Fig. 27 It is a schematic diagram of the second working state of the guiding propulsion mechanism of the present invention;

[0059] Fig.28 It is a schematic diagram of the third working state of the guiding propulsion mechanism of the present invention.

[0060] Description of reference numerals:

[0061] 1. Pipe curtain steel pipe; 2. Hole expansion sleeve; 2-1. Telescopic sleeve slide rail; 2-2. One-way gear;

[0062] 2-3, expansion sleeve centered support hole; 2-4, centered support cable hole; 3, expansion sleeve centered support;

[0063] 4. No. 1 telescopic connecting rod joint; 4-1. No. 1 telescopic connecting rod; 4-2. No. 1 telescopic connecting rod sleeve;

[0064] 4-3, cable hole for No. 1 telescopic connecting rod; 4-4, cable protection tube No. 1; 5, telescopic sleeve;

[0065] 5-1. Telescopic sleeve scraping thread; 5-2. Telescopic sleeve hexagonal slider; 5-3. Centering bearing;

[0066] 5-4, center bearing ball; 6, universal ball mechanism; 6-1, universal ball; 6-2, universal ball fixing ring;

[0067] 6-3, universal ball; 6-4, drill thread hole; 6-5, universal ball hole; 6-6, single pin socket;

[0068] 7. Drill bit; 7-1. Drill bit bolt; 7-2. Drill bit three-axis magnetic sensor; 7-3. Single-pin plug;

[0069] 7-4, semicircular scraper; 8, universal joint No. 1; 9, telescopic connecting rod joint No. 2; 10, control steering gear;

[0070] 10-1, annular gear rail; 10-2, rotating gear; 10-3, gear motor; 10-4, guide center column;

[0071] 10-5, guide clamp; 10-6, guide ball groove; 10-7, worm screw groove; 10-8, worm;

[0072] 10-9, transmission gear set; 10-10, worm motor; 10-11, steering controller outer sleeve;

[0073] 10-12, guide hoop groove; 10-13, rotating gear center shaft hole; 10-14, rotating gear groove;

[0074] 10-15, conductive slip ring structure; 10-16, wire take-up port; 10-17, single-axis roller;

[0075] 10-18, conductive slip ring ball; 10-19, brush wire; 10-20, conductive rail; 10-21, wiring port;

[0076] 10-22, wire collection slot; 10-23, upper platform; 10-24, lower platform; 10-25, guide ball;

[0077] 10-26, control three-axis magnetic sensor; 11, universal joint No. 2; 12, universal joint No. 3;

[0078] 13. Drill rod propeller; 13-1. Drill rod propulsion cylinder sleeve hole; 13-2. Micro telescopic motor;

[0079] 13-3, drill rod thruster cover plate; 13-4, hexagonal drill rod limit ball; 13-5, limit roller control ring;

[0080] 13-6, micro telescopic motor connection block; 13-7, drill rod propulsion cylinder; 13-8, drill rod propulsion device base;

[0081] 13-9, hexagonal drill rod limit ball groove; 13-10, hollow drill rod propulsion cylinder; 14, transmission sleeve;

[0082] 14-1, hexagonal drill pipe channel; 14-2, matching one-way gear; 14-3, fixing bolt;

[0083] 14-4, cable hole for transmission sleeve; 14-5, central support for conductive slip ring; 14-6, central support for busbar;

[0084] 14-7, sliding line; 15, hexagonal drill rod; 15-1, transmission bolt; 15-2, transmission bolt hole;

[0085] 15-3, transmission bolt cable hole; 15-4, limit ball slot; 16, first excavation screw;

[0086] 16-1, flange; 16-2, rib plate; 16-3, fixing nut; 16-4, bolt hole;

[0087] 16-5, hexagonal drill pipe driven channel; 16-6, cable drill pipe isolation sleeve; 16-7, ordinary circular channel;

[0088] 17, cross shaft; 18, universal joint fork shaft; 18-1, outer arm; 18-2, universal joint fork shaft cable hole;

[0089] 19. Universal joint rotating bearing; 20. Rubber hose; 21. Cable; 22. Cable centering plate;

[0090] 22-1. Cable protection tube; 23. Extended excavation screw; 24. Operating system; 25. Pipe curtain drilling rig;

[0091] 26. Reference three-axis magnetic sensor; 28. Reference cap; 29. ​​Reaction wall; 30. Tube curtain rail;

[0092] 32. Support structure; 33. Aviation plug; 34. Aviation socket; 35. Spiral wire;

[0093] 36. Socket fixing plate; 37. External conductive slip ring. DETAILED DESCRIPTION

[0094] like Figures 1 to 28 As shown, a deviation correction device for horizontal spiral drilling pipe curtain construction described in the present invention comprises a pipe curtain steel pipe 1, a hole expansion mechanism, a drill guide deviation correction mechanism, a guide propulsion mechanism and an excavation mechanism; the drill guide deviation correction mechanism comprises a drill bit 7 and a telescopic sleeve 5, a universal ball mechanism 6, a No. 1 telescopic connecting rod section 4, a No. 1 universal joint 8, a control steering device 10, a No. 2 universal joint 11, a No. 2 telescopic connecting rod section 9 and a No. 3 universal joint 12 are sequentially connected in the telescopic sleeve 5, and the front end of the universal ball mechanism 6 is connected to the drill bit 7; the outside of the telescopic sleeve 5 has two telescopic sleeve scraping threads 5-1, and the rear end of the outer side of the telescopic sleeve 5 has a hexagonal telescopic sleeve hexagonal slider 5-2, the inner wall of the telescopic sleeve hexagonal slider 5-2 is connected to the outer side of the center bearing 5-3 as a whole, and the center bearing 5-3 is provided with a center bearing ball 5-4;

[0095] The control steering gear 10 includes an annular rack 10-1, a rotating gear 10-2, a gear motor 10-3, a guide center column 10-4, a guide hoop 10-5, a worm 10-8, a transmission gear set 10-9, a worm motor 10-10, an outer sleeve 10-11 of a steering controller, a conductive slip ring structure 10-15 and a control three-axis magnetic sensor 10-26; the outer diameter of the annular rack 10-1 is the same as the inner diameter of the telescopic sleeve 5 and is connected by welding, the inner side of the annular rack 10-1 is a toothed guide rail, and there are two annular racks 10-1 and they are coaxially arranged in parallel; the outer diameter of the outer sleeve 10-11 of the steering controller is smaller than the inner diameter of the annular rack 10-1 The inner diameter of the steering controller is that eight rotating gear grooves 10-14 are distributed on the outside of the outer sleeve 10-11, and four rotating gear grooves 10-14 are divided into one group. The two groups of rotating gear grooves are at the same distance from the front and rear ends of the steering controller outer sleeve 10-11. A rotating gear center axis hole 10-13 is opened on the side of the rotating gear groove 10-14; the rotating gear 10-2 passes through the rotating gear center axis hole 10-13 through the bearing structure and is connected to the rotating gear groove 10-14; the center axis of the rotating gear 10-2 passes through the rotating gear center axis hole 10-13 and is connected to the gear motor 10-3, and the gear motor 10-3 is fixed to the inner wall of the outer sleeve 10-11 of the steering controller; An upper platform 10-23 and a lower platform 10-24 are arranged in the outer sleeve 10-11 of the steering controller, and a guide clamp groove 10-12 and a wire collection slot 10-22 are provided on the upper platform 10-23 and the lower platform 10-24. A straight slot-shaped channel is formed in the middle of the upper platform 10-23 and the lower platform 10-24, and the guide clamp groove 10-12 passes through the upper platform 10-23 and the lower platform 10-24, but does not pass through the arc surfaces on both sides of the straight slot-shaped channel; two front-to-back symmetrical worm gears 10-8 are provided on the upper part of the upper platform 10-23 and the lower part of the lower platform 10-24, and one side of the worm gear 10-8 is coaxial with a gear of the transmission gear set 10-9 The guide hoop 10-5 is connected to the guide center column 10-4 by a guide ball groove 10-6. The guide center column 10-4 is connected to the guide center column 10-4 by a guide ball groove 10-6, a guide ball hole 10-25 and a guide ball hole. The guide hoop 10-5 and the guide center column 10-4 form a bearing structure through the guide ball groove 10-6, the guide ball 10-25 and the guide ball hole. The guide center column 10-4 can rotate independently relative to the guide hoop 10-5.A conductive slip ring structure 10-15 is provided in the middle of the guide center column 10-4. The conductive slip ring structure 10-15 includes a wire take-up drum 10-16, a single-axis roller 10-17, a conductive slip ring ball 10-18, a brush wire 10-19, a conductive rail 10-20 and a wiring port 10-21. A wire take-up drum 10-16 is provided on the upper and lower parts of the conductive slip ring structure 10-15, and the two wire take-up drums 10-16 pass through the wire take-up port chute 10-22 of the upper platform 10-23 and the lower platform 10-24 respectively; the single-axis roller 10-17 is located on both sides of the wire take-up drum 10-16 and its axis Located on the side of the take-up drum 10-16, the single-axis roller 10-17 is in contact with the upper platform 10-23 and the lower platform 10-24; the wiring port 10-21 is located on the inner side of the take-up drum 10-16, and the cable 21 passes through the take-up drum 10-16 and is connected to each wiring port 10-21; the brush wire 10-19 is connected to the wiring port 10-21; the conductive rail 10-20 is in contact with the brush wire 10-19; the conductive rail 10-20 and the central guide column are a rigid whole; the control three-axis magnetic sensor 10-26 is installed on the upper part of the upper platform 10-23 or the lower part of the lower platform 10-24. ;

[0096] In this embodiment, the front end of the drill bit 7 is a Y-shaped structure, the Y-shaped structure is in a forward protruding state, and a semicircular scraper 7-4 is arranged at the front end of the Y-shaped structure for easy scraping of soil, and the rear end of the drill bit 7 is connected to the reaming sleeve 2; a drill bit three-axis magnetic sensor 7-2 is arranged at the center of the drill bit 7, a drill bit bolt 7-1 is arranged at the rear end of the drill bit 7, and a single-pin plug 7-3 is connected to the rear end of the drill bit bolt 7-1, and a circular channel is arranged at the axis of the drill bit 7 and the drill bit bolt 7-1, and a cable 21 for the drill bit three-axis magnetic sensor 7-2 passes through and is connected to the single-pin plug 7-3; a universal The ball mechanism 6 includes a universal ball fixing ring 6-2, a universal ball rolling ball 6-3, a universal ball 6-1 and a single-pin socket 6-6. The outer diameter of the universal ball fixing ring 6-2 is the same as the inner diameter of the telescopic sleeve 5, and is fixedly connected to the front end of the telescopic sleeve 5. The inner side of the universal ball fixing ring 6-2 is a spherical arc surface, and the arc surface is evenly arranged with multiple circles of universal ball rolling holes 6-5 for installing the universal ball rolling ball 6-3. The front end of the universal ball 6-1 is a drill threaded hole 6-4, and the drill bolt 7-1 is connected to the drill threaded hole 6-4. The bottom of the drill threaded hole 6-4 is a single-pin socket 6-6.

[0097] In this embodiment, the No. 1 telescopic link section 4 includes a No. 1 telescopic link 4-1 and a No. 1 telescopic link sleeve 4-2, the No. 1 telescopic link sleeve 4-2 is coaxially connected to the universal ball 6-1 as a whole, the inner side of the No. 1 telescopic link sleeve 4-2 is a toothed section, and the axis of the No. 1 telescopic link sleeve 4-2 is provided with a No. 1 cable protection tube 4-4; the outer side of the No. 1 telescopic link 4-1 is a gear section meshing with the toothed section; the axis of the No. 1 telescopic link 4-1 is a No. 1 telescopic link cable hole 4-3, and the outer diameter of the No. 1 cable protection tube 4-4 is smaller than the No. 1 telescopic link cable hole 4-3, so as to protect the cable 21 during the telescopic process of the No. 1 telescopic link section 4, and the bottom of the single-pin jack 6-6 is connected to the cable 21 and passes through the No. 1 cable protection tube 4-4, which is used to supply power and data transmission to the drill bit three-axis magnetic sensor 7-2;

[0098] The first universal joint 8 includes two universal joint fork shafts 18, a universal joint rotating bearing 19, a cross shaft 17 and a rubber hose 20. The universal joint fork shaft 18 has a universal joint fork shaft cable hole 18-2 at the axis of the universal joint fork shaft 18, which is connected to the first telescopic link cable hole 4-3. The universal joint fork shaft 18 has two symmetrical outer arms 18-1 on one side, and each outer arm 18-1 has a universal joint rotating bearing hole at the end; the universal joint rotating bearing hole has a large diameter at the middle end and a small diameter at both ends, which is used to clamp the universal joint rotating bearing 19; the cross shaft 17 is connected to the two universal joint fork shafts 18 through four universal joint rotating bearings 19, so that the universal joint fork shaft can rotate through the universal joint rotating bearing 19, and there is a circular channel in the middle of the cross shaft 17. The rubber hose 20 passes through the circular channel and is connected to the universal joint fork shaft cable holes 18-2 on both sides to protect the cable 21; the rear end of the first telescopic link 4-1 is welded to the first universal joint fork shaft 18;

[0099] The second universal joint 11 and the third universal joint 12 have the same structure as the first universal joint 8 , and the second telescopic connecting rod joint 9 has the same structure as the first telescopic connecting rod joint 4 .

[0100] In this embodiment, the reaming mechanism includes a reaming sleeve 2 and a reaming sleeve center support 3. The reaming sleeve 2 has a variable diameter spiral structure. A variable diameter hole is provided in the reaming sleeve 2 and runs through the front and back. There are evenly distributed one-way gears 2-2 at the variable diameter position of the variable diameter hole. A hexagonal telescopic sleeve slide rail 2-1 is welded to the inner wall of the small end of the variable diameter hole. Three busbar outer grooves are evenly distributed inside the large end of the variable diameter hole. The outside of the reaming sleeve 2 has three raised threads that gradually widen from front to back. The rear side of the raised thread is provided with a reaming sleeve center support hole. 2-3, there is a central support cable hole 2-4 at the bottom of the center support hole 2-3 of the expansion sleeve, and the center support cable hole 2-4 is connected to the outer groove of the busbar, which is used to connect the control cable of the center support 3 of the expansion sleeve to the transmission sleeve 14. The center support 3 of the expansion sleeve is a telescopic cylinder and is embedded in the center support hole 2-3 of the expansion sleeve. The size of the hole at the front end of the expansion sleeve 2 is larger than the outer diameter of the telescopic sleeve scraping thread 5-1, and the size of the hexagonal slider 5-2 of the telescopic sleeve is the same as the hexagonal telescopic sleeve slide rail 2-1 in the expansion sleeve 2.

[0101] In this embodiment, the guide propulsion mechanism includes a transmission sleeve 14, a drill rod thruster 13, and a hexagonal drill rod 15. One side of the transmission sleeve 14 is a matching one-way gear 14-2 meshing with the one-way gear 2-2; the central axis of the transmission sleeve 14 is a hexagonal drill rod channel 14-1 that cooperates with the hexagonal drill rod 15, and six fixing bolts 14-3 are evenly distributed at the tail of the transmission sleeve 14; the middle part of the outer side of the transmission sleeve 14 is a central supporting conductive slip ring 14-5, and the outer side of the central supporting conductive slip ring 14-5 is provided with a sliding wire 14-7 inside the central supporting busbar 14-6, and the cable 21 extends to the rear of the transmission sleeve 14 and is connected to the aviation plug 33 through a spiral wire 35.

[0102] In this embodiment, the drill rod thruster 13 includes a drill rod thrust cylinder 13-7, a hollow drill rod thrust cylinder 13-10, a drill rod thruster base 13-8, a drill rod thruster cover plate 13-3, a micro telescopic motor 13-2, a limit ball control ring and a hexagonal drill rod limit ball 13-4; two drill rod thrust cylinders 13-7 and one hollow drill rod thrust cylinder 13-10 are evenly embedded in the transmission sleeve 14, and the rear sides of the drill rod thrust cylinder 13-7 and the hollow drill rod thrust cylinder 13-10 are provided with three transmission sleeve cable holes 14-4; the middle part of the drill rod thruster base 13-8 is a drill rod channel of a hexagonal structure, and a groove is provided on the drill rod thruster base 13-8 near the drill rod channel of the hexagonal structure, and six hexagonal drill rod limit ball grooves 13-9 for placing the hexagonal drill rod limit balls 13-4 are evenly distributed at the bottom of the groove, and the limit balls There are six inclined protrusions on the lower part of the control ring, and the six inclined protrusions correspond to the six hexagonal drill rod limit ball grooves 13-9 one by one. There are three micro-telescopic motor connecting blocks 13-6 on the outside of the limit ball control ring. The micro-telescopic motor connecting block 13-6 is welded to the telescopic rod of the micro-telescopic motor 13-2. The micro-telescopic motor 13-2 is fixed on the drill rod propeller cover plate 13-3, and the drill rod propeller cover plate 13-3 is welded to the drill rod propeller base 13-8. There are three drill rod propulsion cylinder sleeve holes 13-1 on the outside of the drill rod propeller cover plate 13-3 and the drill rod propeller base 13-8. The telescopic rods of the drill rod propulsion cylinder 13-7 and the hollow drill rod propulsion cylinder 13-10 extend into the drill rod propulsion cylinder sleeve hole 13-1 and are fixedly connected to the drill rod propulsion cover plate 13-3. The axis of the hollow drill rod propulsion cylinder 13-10 is provided with a penetrating hole.

[0103] In this embodiment, the front end of the hexagonal drill rod 15 is a transmission bolt 15-1, and the transmission bolt 15-1 is connected to the No. 3 universal joint 12 through a transmission bolt hole 15-2. The axis of the transmission bolt 15-1 has a transmission bolt cable hole 15-3 that passes through the front and back for passing the cable 21. The cross-section of the hexagonal drill rod 15 is a regular hexagon, and the six edges of the hexagonal drill rod 15 are equidistantly arranged with limiting ball grooves 15-4. The limiting ball grooves 15-4 are provided with limiting balls for controlling the forward and backward movement of the hexagonal drill rod 15.

[0104] In this embodiment, the excavation mechanism includes a first excavation screw 16, an extended excavation screw 23, a cable centering plate 22, a socket fixing plate 36, an aviation plug 33, an aviation socket 34, a spiral line 35 and an external conductive slip ring 37. Flanges 16-1 are provided at both ends of the first excavation screw 16. The flange 16-1 and the first excavation screw 16 are reinforced by ribs 16-2. A rigid hole socket connected to the aviation plug 33 is provided at the front end of the first excavation screw 16. A hexagonal drill rod driven channel 16-5 adapted to the hexagonal drill rod 15 and a common circular channel 16-7 are sequentially provided in the first excavation screw 16 from front to back. The aviation socket 34 and the hexagonal drill rod driven channel 16-5 are separated by a cable drill rod isolation sleeve 16-6. Three cable holes are evenly distributed on the outside of the hexagonal drill rod driven channel 16-5. The three cable holes correspond one to one with the three transmission sleeve cable holes 14-4. The flange 1 Six bolt holes 16-4 corresponding to the six fixing bolts 14-3 are arranged on the outer edge of 6-1, and the first excavation screw 16 and the transmission sleeve 14 are connected and fixed by the fixing bolts 14-3 and the fixing nuts 16-3; the inner part of the extended excavation screw 23 is a common circular channel 16-7, the cable centering plate 22 is fixedly installed in the common circular channel 16-7, the socket fixing plate 36 is fixed on the outer side of the cable centering plate 22, and the socket fixing plate 36 connects various cables to the aviation socket 34; a cable protection tube 22-1 is arranged between the two cable centering plates 22, and the first excavation screw 16 and the extended excavation screw 23 are connected by a spiral wire 35 with aviation plugs 33 at both ends; an external conductive slip ring 37 is fixed on the reaction wall 29 where the axis of the rear of the pipe curtain drilling rig 25 is located, and is used to connect various cables to the operating system 24 and prevent the cable 21 from being torsionally damaged during rotation.

[0105] In this embodiment, a pipe curtain rail 30 is provided on the side of the reaction wall 29 facing the pipe curtain steel pipe 1, and a pipe curtain drilling rig 25 connected to the operating system 24 is provided at the rear side of the pipe curtain steel pipe 1. A supporting structure 32 is installed on the outside of the pipe curtain steel pipe 1. A reference pedestal 28 is also provided next to the reaction wall 29, and a reference three-axis magnetic sensor 26 connected to the operating system 24 is provided on the reference pedestal 28.

[0106] It should be noted that the pipe curtain steel pipe is used to protect the hole and internal drilling structure during the drilling process. The telescopic end of the reaming sleeve center support 3 can be slightly lower than the raised spiral of the reaming sleeve 2, and the height is made up with a hard rubber pad at the end; the telescopic sleeve scraping thread 5-1 should be close to the reaming sleeve 2, so as to facilitate the scraping of soil entering the reaming sleeve 2 during rotation; the length of the hexagonal drill rod driven channel 16-5 of the excavation screw should be greater than the length of the hexagonal drill rod 15; the length of the hexagonal drill rod 15 should be greater than the sum of the lengths of the telescopic sleeve 5 and the transmission sleeve 14; a baffle can be installed on the outside of the annular rack 10-1 or the rotating gear 10-2 to prevent the rotating gear 10-2 from derailing; the annular rack 10-1 and the rotating gear 10-2 can be replaced with two pairs of opposite conical teeth or spiral teeth to form a more stable structure.

[0107] A deviation correction method for horizontal spiral drilling pipe curtain construction, the method comprising the following steps:

[0108] Step 1: After assembling and debugging the device, turn off the pipe curtain drill 25, set the initial value of the three-axis magnetic sensor in the operating system 24, set the drilling direction to the X-axis, the horizontal plane perpendicular to the drilling direction to the Y-axis, the height to the Z-axis, and set the reference three-axis magnetic sensor 26 as the origin, record the initial height difference h0 and the initial horizontal distance y0 between the drill bit three-axis magnetic sensor 7-2 and the reference three-axis magnetic sensor 26;

[0109] It should be noted that, during the actual assembly and debugging of the device, the expansion sleeve 2 and the first excavation screw 16 are connected: the first excavation screw 16 is horizontally placed on the pipe curtain rail 30, the side of the first excavation screw 16 connected to the expansion sleeve 2 is slightly raised, the aerospace plug on the transmission sleeve 14 is connected to the aerospace socket in the first excavation screw 16 and tightened, and then the fixing bolt 14-3 is passed through the bolt hole 16-4 and the fixing nut 16-3 is used to fix the transmission sleeve 14 and the first excavation screw 16;

[0110] Connect the first excavation screw rod 16 to the pipe curtain drill rig 25 by bolts: place the pipe curtain steel pipe on the pipe curtain steel rail 30, and push the pipe curtain steel pipe from the end with a smaller diameter of the reaming sleeve 2 until the reaming sleeve 2 is exposed from the pipe curtain steel pipe;

[0111] Install the drill bit 7 and debug the equipment: install the drill bit 7 to the universal ball mechanism 6, push the pipe curtain steel pipe forward until it reaches the maximum stroke of the pipe curtain drill rig 25, separate the first excavation screw 16 from the pipe curtain drill rig 25, hoist the extended excavation screw 23 to the middle of the first excavation screw 16 and the pipe curtain drill rig 25, use the aviation plug 33 to connect the corresponding aviation socket 34 between the first excavation screw 16 and the extended excavation screw 23, and then use the aviation plug 33 to connect the aviation socket 34 on the extended excavation screw 23. The socket 34 is connected to the external conductive slip ring 37, and then the cable 21 of the external conductive slip ring 37 is passed through the pipe curtain drill rig 25 and connected to the operating system 24; the reference three-axis magnetic sensor 26 is fixed and connected to the operating system 24, and it is confirmed that the reference three-axis magnetic sensor 26, the drill bit three-axis magnetic sensor 7-2 and the control three-axis magnetic sensor 10-26 can all work normally, and the drill bit 7 can be deflected normally. After the confirmation, the pipe curtain drill rig 25 is connected to the extended excavation screw 23 by bolts. Start the pipe curtain drill rig 25, so that the pipe curtain drill rig 25 controls the extended excavation screw 23 to move forward, and observe whether the telescopic sleeve 5 and the drill rod thruster 13 can work normally.

[0112] Step 2: Drilling and monitoring the drill bit:

[0113] The drill bit 7 is returned to its position, and the pipe curtain drilling machine 25 starts working, pushing the pipe curtain sleeve and the extended excavation screw 23 forward. During the drilling process, the total drilling depth and the current total height difference h between the drill bit three-axis magnetic sensor 7-2 and the reference three-axis magnetic sensor 26 are recorded every time a certain depth is drilled. i , current total horizontal distance y i , calculate the offset of the total jacking depth and the offset of the jacking depth of the i-th section Where i is the number of times the pipe curtain drilling machine 25 works and i≥1, h i-1 is the total height difference measured by the drill triaxial magnetic sensor 7-2 and the reference triaxial magnetic sensor 26 for the i-1th time, y i-1 The total horizontal distance measured by the drill bit three-axis magnetic sensor 7-2 and the reference three-axis magnetic sensor 26 for the i-1th time;

[0114] Step 3: Drill bit correction, the process is as follows:

[0115] Step 301: When the offset of the total jacking depth Δ and the offset of the jacking depth of the i-th section Δ i When any value exceeds the allowable range, drilling is stopped immediately, and the upper platform 10-23 of the outer sleeve 10-11 of the steering controller is adjusted to a horizontal level through the console;

[0116] Step 302: Determine the drilling length d required for correction according to the bending strength of the pipe-roof steel pipe. i , according to the formula Calculate the correction angle α;

[0117] Step 303, drilling the guide hole according to the correction angle: the operating system 24 controls the central support 3 of the reaming sleeve to be opened and close to the pipe curtain sleeve, and the pipe curtain drilling machine 25 pulls the extended excavation screw 23 backward until the one-way gear 2-2 of the reaming sleeve 2 is separated from the matching one-way gear 14-2 of the transmission sleeve 14;

[0118] Step 304, correct the drilling of the guide hole: the upper platform 10-23 of the outer sleeve 10-11 of the steering controller is in a horizontal state, the rotating gear 10-2 of the steering controller is rotated until the upper platform 10-23 is parallel to the correction angle, and then the worm motor 10-10 is rotated to adjust the position of the guide clamp 10-5 until the drill bit 7 reaches the correction angle;

[0119] The pipe curtain drilling machine 25 is started again, so that the first excavation screw rod 16 rotates and drives the hexagonal drill rod 15 to rotate, thereby driving the drill bit 7 to rotate; the drill rod propulsion device 13 is controlled again, so that the micro telescopic motor 13-2 is in a retracted state, and the drill rod propulsion cylinder 13-7 and the hollow drill rod propulsion cylinder 13-10 are controlled to move forward, and the micro telescopic motor 13-2 is extended at the same time, so that the hexagonal drill rod limit ball 13-4 is stuck in the limit ball slot 15-4 of the hexagonal drill rod 15, so that the drill rod propulsion cylinder 13-7 and the hollow drill rod propulsion cylinder 13-10 can push the hexagonal drill rod 15 to move forward , and then push the telescopic sleeve 5 and the drill bit 7 forward; when the drill rod propulsion cylinder 13-7 and the hollow drill rod propulsion cylinder 13-10 reach the maximum stroke, tighten the micro telescopic motor 13-2, return the drill rod propulsion cylinder 13-7 and the hollow drill rod propulsion cylinder 13-10 to the initial position, and then control the drill rod propulsion cylinder 13-7 and the hollow drill rod propulsion cylinder 13-10 to move forward, and extend the micro telescopic motor 13-2 at the same time, until the telescopic sleeve hexagonal slider 5-2 moves to the end of the telescopic sleeve slide rail 2-1 on the reaming sleeve 2 or the drill bit 7 has been corrected to within the allowable offset distance;

[0120] If the drill bit 7 is still not corrected to within the offset distance, retract the micro telescopic motor 13-2, the reaming sleeve centering support 3, the drill rod propulsion cylinder 13-7 and the hollow drill rod propulsion cylinder 13-10, start the pipe curtain drilling machine 25, push the transmission sleeve 14 forward until the one-way gear 2-2 of the reaming sleeve 2 is meshed with the matching one-way gear 14-2 of the transmission sleeve 14, so that the reaming sleeve 2 rotates and drills forward until the telescopic sleeve 5 is completely retracted;

[0121] Step 305, repeating step 2 to step 304 until the drill bit 7 is corrected to within the allowable offset distance and the drilling direction of the drill bit 7 returns to the X axis;

[0122] Step 4: Adjustment completed, drilling resumed: Continue monitoring during the drilling process. If the drill bit 7 deviates again, stop drilling and perform trimming again until the pipe curtain drilling is completed.

[0123] When the present invention is used, the central drilling screw of the pipe curtain drilling machine 25 is responsible for pushing and rotating the extended excavation screw 23, and the hydraulic cylinders on both sides are responsible for pushing the pipe curtain steel pipe. The central drilling screw of the pipe curtain drilling machine 25 is a hollow structure, which is used to pull out the cable 21 of the external conductive slip ring 37;

[0124] The first excavation screw 16 is connected to the extended excavation screw 23 via a flange, and the extended excavation screw 23 is also connected to the subsequent excavation screw via a flange;

[0125] The first excavation screw 16 and the extended excavation screw 23 transmit signals via a spiral wire 35 with aviation plugs 33 at both ends, and the extended excavation screw 23 and the subsequent excavation screws also transmit signals via a spiral wire 35 with aviation plugs 33 at both ends;

[0126] Since the first excavation screw 16 and the extended excavation screw 23, and the extended excavation screw 23 and the subsequent excavation screws transmit signals through the spiral wire 35 with aviation plugs 33 at both ends, and the spiral wire 35 is retractable, the spiral wire 35 will not fall to the flange 16-1 during the installation process to interfere with the connection of the flange 16-1;

[0127] The cable 21 of the drill bit three-axis magnetic sensor 7-2 is connected to the operating platform through the following mechanisms: drill bit three-axis magnetic sensor 7-2→universal ball 6-1→No. 1 telescopic link 4→No. 1 universal joint 8→guide center column 10-4→No. 2 universal joint 11→No. 2 telescopic link 9→No. 3 universal joint 12→hexagonal drill rod 15→first excavation screw 16→extended excavation screw 23→…→external conductive slip ring 37→operating platform;

[0128] The cable 21 controlling the three-axis magnetic sensor 10-26, the worm motor 10-10 and the gear motor 10-3 is connected to the operating platform through the following mechanisms: controlling the three-axis magnetic sensor 10-26 → the wire receiving port 10-16 → the conductive slip ring structure 10-15 → the guide center column 10-4 → the second universal joint 11 → the second telescopic link section 9 → the third universal joint 12 → the hexagonal drill rod 15 → the first excavation screw 16 → the extended excavation screw 23 → ... → the external conductive slip ring 37 → the operating platform;

[0129] The cable 21 of the expansion sleeve center support 3 is connected to the operating platform through the following mechanism: expansion sleeve center support 3 → center support busbar 14-6 → center support conductive slip ring 14-5 → transmission sleeve cable hole 14-4 → spiral line 35 → first excavation screw 16 → extended excavation screw 23

[0130] →……→External conductive slip ring 37→Operation platform;

[0131] The rotational power transmission process of the expansion sleeve 2 during drilling is: the extended excavation screw 23 → the first excavation screw 16 → the transmission sleeve 14 → the matching one-way gear 14-2 → the one-way gear 2-2 → the expansion sleeve 2;

[0132] The rotational power transmission process of the drill bit 7 during the drilling process is: the extended excavation screw 23 → the first excavation screw 16 → the hexagonal drill rod 15 → the transmission bolt hole 15-2 → the third universal joint 12 → the second telescopic connecting rod section 9 → the second universal joint 11 → the guide center column 10-4 → the first universal joint 8 → the first telescopic connecting rod section 4 → the universal ball 6-1 → the drill bit 7;

[0133] In step 301, the coordinates of the lowest or highest point of the three-axis magnetic sensor 10-26 can be obtained by rotating the control steering device 10, and then the three-axis magnetic sensor 10-26 can be rotated to the coordinates to make the upper platform 10-23 level;

[0134] In step 301, the upper platform 10-23 being horizontal does not mean that the upper platform 10-23 is in an upward horizontal state. Since the upper platform 10-23 and the lower platform 10-24 are in opposite directions and parallel to each other, the goal can be achieved whether the upper platform 10-23 is in an upward or downward horizontal state.

[0135] In step 303, the one-way gear 2-2 of the reaming sleeve 2 and the matching one-way gear 14-2 of the transmission sleeve 14 are pulled apart. In step 304, the transmission sleeve 14 will rotate due to the flange connection with the first excavation screw 16, while the reaming sleeve 2 will not rotate due to the reaming sleeve center support hole 2-3. When the guide drilling is completed or the telescopic sleeve 5 is extended to the maximum stroke, the stop state of the transmission sleeve 14 cannot be determined. At this time, the center support conductive slip ring 14-5 can provide a control circuit for the reaming sleeve center support 3 to retract the reaming sleeve center support 3;

[0136] In step 304, when the angle of the drill bit 7 is corrected, the center guide column can only move in a straight line in the guide clamp groove 10-12 of the outer sleeve 10-11 of the steering controller, so the direction of the guide clamp groove 10-12 of the outer sleeve 10-11 of the steering controller is changed by rotating the gear 10-2 so that it can rotate in a vertical plane, thereby changing the movement straight line of the guide center column 10-4;

[0137] In step 304, when the telescopic sleeve 5 moves forward, since the reaming sleeve 2 is fixed inside the pipe curtain steel pipe by the reaming sleeve center support 3, and the reaming sleeve 2 and the telescopic sleeve 5 are fixed by a hexagonal slider, the telescopic sleeve 5 will not rotate when moving forward;

[0138] In step 304, when the propulsion cylinder and the hollow drill rod propulsion cylinder 13-10 move forward, the micro telescopic motor 13-2 is in an incompletely extended state, and the hexagonal drill rod limit ball 13-4 will be subjected to the inward and backward force from the limit ball control ring. At this time, the drill rod thruster 13 moves forward along the hexagonal drill rod 15. When any row of limit ball grooves 15-4 on the hexagonal drill rod 15 passes through the hexagonal drill rod limit ball grooves 13-9 of the drill rod thruster 13, the hexagonal drill rod limit ball 13-4 will immediately be stuck in the limit ball groove 15-4, and the limit ball control ring moves backward to stick the hexagonal drill rod limit ball 13-4 in the limit ball groove 15-4; at this time, when the propulsion cylinder and the hollow drill rod propulsion cylinder 13-10 move forward, they will drive the hexagonal drill rod 15 to move forward, and then transmit thrust to the telescopic sleeve 5;

[0139] In step 304, when the reaming sleeve 2 moves forward, since there is a hexagonal slider fixed between the reaming sleeve 2 and the telescopic sleeve 5, the telescopic sleeve 5 will rotate synchronously when the reaming sleeve 2 moves forward.

[0140] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A deviation correction device for horizontal spiral drilling pipe curtain construction, characterized in that: The invention comprises a pipe curtain steel pipe (1), a hole expansion mechanism, a drill bit guide deviation correction mechanism, a guide propulsion mechanism and an excavation mechanism; the drill bit guide deviation correction mechanism comprises a drill bit (7) and a telescopic sleeve (5); a universal ball mechanism (6), a first telescopic connecting rod joint (4), a first universal joint (8), a control steering device (10), a second universal joint (11), a second telescopic connecting rod joint (9) and a third universal joint (12) are sequentially connected in the telescopic sleeve (5); the front end of the universal ball mechanism (6) is connected to the drill bit (7); the outside of the telescopic sleeve (5) is provided with two telescopic sleeve scraping threads (5-1); the outer rear end of the telescopic sleeve (5) is provided with a hexagonal telescopic sleeve hexagonal slider (5-2); the inner wall of the telescopic sleeve hexagonal slider (5-2) is integrally connected to the outer side of a center bearing (5-3); a center bearing ball (5-4) is arranged in the center bearing (5-3); The control steering device (10) comprises an annular rack (10-1), a rotating gear (10-2), a gear motor (10-3), a guide center column (10-4), a guide hoop (10-5), a worm (10-8), a transmission gear set (10-9), a worm motor (10-10), an external sleeve (10-11) of a steering controller, a conductive slip ring structure (10-15) and a control three-axis magnetic sensor (10-26); the outer diameter of the annular rack (10-1) is the same as the inner diameter of the telescopic sleeve (5) and is connected by welding; the inner side of the annular rack (10-1) is a toothed guide rail; there are two annular racks (10-1) which are coaxially arranged in parallel; the outer diameter of the external sleeve (10-11) of the steering controller is smaller than the inner diameter of the annular rack (10-1). 0-1) inner diameter, eight rotating gear grooves (10-14) are distributed outside the steering controller outer sleeve (10-11), four rotating gear grooves (10-14) are divided into one group, the two groups of rotating gear grooves are at the same distance from the front and rear ends of the steering controller outer sleeve (10-11), and a rotating gear middle axis hole (10-13) is opened on the side of the rotating gear groove (10-14); the rotating gear (10-2) passes through the rotating gear middle axis hole (10-13) through the bearing structure and is connected to the rotating gear groove (10-14); the middle axis of the rotating gear (10-2) passes through the rotating gear middle axis hole (10-13) and is connected to the gear motor (10-3), and the gear motor (10-3) is fixed to the inner wall of the steering controller outer sleeve (10-11); An upper platform (10-23) and a lower platform (10-24) are arranged in an outer sleeve (10-11) of the steering controller. A guide hoop groove (10-12) and a wire take-up slot (10-22) are provided on the upper platform (10-23) and the lower platform (10-24). A straight slot-shaped passage is provided between the upper platform (10-23) and the lower platform (10-24). The guide hoop groove (10-12) passes through the upper platform (10-23) and the lower platform (10-24) but does not pass through the arc surfaces on both sides of the straight slot-shaped passage. Two worms (10-8) are provided on the upper part of the upper platform (10-23) and the lower part of the lower platform (10-24) in a front-to-rear symmetrical manner. One side of the worm (10-8) is connected to a gear of a transmission gear set (10-9). Coaxially connected, another gear of the transmission gear set (10-9) is coaxially connected to a worm motor (10-10); rectangular protrusions are provided on the upper and lower sides of the guide hoop (10-5), a worm screw groove (10-7) is provided on the plane of the rectangular protrusion, the worm screw groove (10-7) is meshed with the worm (10-8), and a guide ball groove (10-6) is provided on the inner ring surface of the guide hoop (10-5); a guide ball hole is provided near the end of the guide center column (10-4), and the guide hoop (10-5) and the guide center column (10-4) form a bearing structure through the guide ball groove (10-6), the guide ball (10-25) and the guide ball hole, so that the guide center column (10-4) can rotate independently relative to the guide hoop (10-5);A conductive slip ring structure (10-15) is provided in the middle of the guide center column (10-4), and the conductive slip ring structure (10-15) comprises a wire take-up drum (10-16), a single-axis roller (10-17), a conductive slip ring ball (10-18), a brush wire (10-19), a conductive rail (10-20) and a wiring port (10-21). A wire take-up drum (10-16) is provided on the upper and lower parts of the conductive slip ring structure (10-15), and the two wire take-up drums (10-16) pass through the wire take-up port slide grooves (10-22) of the upper platform (10-23) and the lower platform (10-24) respectively; the single-axis roller (10-17) is located on both sides of the wire take-up drum (10-16) and its axis is Located on the side of the wire take-up drum (10-16), the single-axis roller (10-17) contacts the upper platform (10-23) and the lower platform (10-24); the wiring port (10-21) is located on the inner side of the wire take-up drum (10-16), and the cable (21) passes through the wire take-up drum (10-16) and is connected to each wiring port (10-21); the brush wire (10-19) is connected to the wiring port (10-21); the conductive rail (10-20) contacts the brush wire (10-19); the conductive rail (10-20) and the central guide column are a rigid whole; the control three-axis magnetic sensor (10-26) is installed on the upper part of the upper platform (10-23) or the lower part of the lower platform (10-24). ; 2. A deviation correction device for horizontal spiral drilling pipe curtain construction according to claim 1, characterized in that: The front end of the drill bit (7) is in a Y-shaped structure, the Y-shaped structure is in a forward convex state, a semicircular scraper (7-4) is arranged at the front end of the Y-shaped structure for easy scraping of soil, and the rear end of the drill bit (7) is connected to the reaming sleeve (2); a drill bit three-axis magnetic sensor (7-2) is arranged at the center of the drill bit (7), a drill bit bolt (7-1) is arranged at the rear end of the drill bit (7), and a single-pin plug (7-3) is connected to the rear end of the drill bit bolt (7-1); a circular channel is arranged at the axis of the drill bit (7) and the drill bit bolt (7-1), and a cable (21) for the drill bit three-axis magnetic sensor (7-2) passes through and is connected to the single-pin plug (7-3); the universal ball mechanism (6 ) comprises a universal ball fixing ring (6-2), a universal ball rolling ball (6-3), a universal ball (6-1) and a single pin socket (6-6); the outer diameter of the universal ball fixing ring (6-2) is the same as the inner diameter of the telescopic sleeve (5), and is fixedly connected to the front end of the telescopic sleeve (5); the inner side of the universal ball fixing ring (6-2) is a spherical arc surface, and the arc surface is evenly arranged with multiple circles of universal ball rolling holes (6-5) for installing the universal ball rolling ball (6-3); the front end of the universal ball (6-1) is a drill threaded hole (6-4), a drill bolt (7-1) is connected to the drill threaded hole (6-4), and the bottom of the drill threaded hole (6-4) is a single pin socket (6-6).

3. A deviation correction device for horizontal spiral drilling pipe curtain construction according to claim 2, characterized in that: The No. 1 telescopic link section (4) comprises a No. 1 telescopic link (4-1) and a No. 1 telescopic link sleeve (4-2), the No. 1 telescopic link sleeve (4-2) being coaxially connected to a universal ball (6-1) as a whole, the inner side of the No. 1 telescopic link sleeve (4-2) being a toothed section, the axis of the No. 1 telescopic link sleeve (4-2) being provided with a No. 1 cable protection tube (4-4); the outer side of the No. 1 telescopic link (4-1) being a gear section meshing with the toothed section; the axis of the No. 1 telescopic link (4-1) being a No. 1 telescopic link cable hole (4-3), the outer diameter of the No. 1 cable protection tube (4-4) being smaller than the No. 1 telescopic link cable hole (4-3), so as to protect the cable (21) during the telescopic process of the No. 1 telescopic link section (4); the bottom of the single-pin jack (6-6) being connected to the cable (21) and passing through the No. 1 cable protection tube (4-4), being used for supplying power to the drill bit three-axis magnetic sensor (7-2) and transmitting data; The first universal joint (8) comprises two universal joint fork shafts (18), a universal joint rotating bearing (19), a cross shaft (17) and a rubber hose (20). The center of the universal joint fork shaft (18) is provided with a universal joint fork shaft cable hole (18-2) which is connected with the first telescopic link cable hole (4-3). The universal joint fork shaft (18) has two symmetrical outer arms (18-1) on one side, and each outer arm (18-1) has a universal joint rotating bearing hole at the end. The universal joint rotating bearing hole has a large diameter in the middle and a small diameter at both ends. Used to clamp the universal joint rotating bearing (19); the cross shaft (17) is connected to two universal joint fork shafts (18) through four universal joint rotating bearings (19), so that the universal joint fork shafts can rotate through the universal joint rotating bearings (19); a circular channel is provided in the middle of the cross shaft (17); a rubber hose (20) passes through the circular channel and is connected to the universal joint fork shaft cable holes (18-2) on both sides, so as to protect the cables (21); the rear end of the No. 1 telescopic connecting rod (4-1) is welded to the No. 1 universal joint fork shaft (18); The second universal joint (11) and the third universal joint (12) are both of the same structure as the first universal joint (8), and the second telescopic connecting rod joint (9) is of the same structure as the first telescopic connecting rod joint (4).

4. A deviation correction device for horizontal spiral drilling pipe curtain construction according to claim 1, characterized in that: The reaming mechanism comprises a reaming sleeve (2) and a reaming sleeve center support (3). The reaming sleeve (2) has a variable diameter spiral structure. A variable diameter hole is provided in the reaming sleeve (2) and runs through the front and back. Uniformly distributed one-way gears (2-2) are provided at the variable diameter position of the variable diameter hole. A hexagonal telescopic sleeve slide rail (2-1) is welded to the inner wall of the small end of the variable diameter hole. Three busbar outer grooves are uniformly distributed inside the large end of the variable diameter hole. The reaming sleeve (2) has three convex threads on the outside that gradually widen from front to back. A reaming sleeve center support hole (2-3) is provided on the rear side of the convex threads. A central support cable hole (2-4) is provided at the bottom of the central support hole (2-3) of the cylinder. The central support cable hole (2-4) is connected to the outer groove of the busbar and is used to connect the control cable of the central support (3) of the expansion sleeve to the transmission sleeve (14). The central support (3) of the expansion sleeve is a telescopic oil cylinder and is embedded in the central support hole (2-3) of the expansion sleeve. The size of the hole at the front end of the expansion sleeve (2) is larger than the outer diameter of the telescopic sleeve scraping thread (5-1). The size of the hexagonal sliding block (5-2) of the telescopic sleeve is the same as the hexagonal telescopic sleeve slide rail (2-1) in the expansion sleeve (2).

5. A deviation correction device for horizontal spiral drilling pipe curtain construction according to claim 1, characterized in that: The guide propulsion mechanism comprises a transmission sleeve (14), a drill rod propeller (13), and a hexagonal drill rod (15); one side of the transmission sleeve (14) is a matching one-way gear (14-2) meshing with the one-way gear (2-2); the central axis of the transmission sleeve (14) is a hexagonal drill rod channel (14-1) matching with the hexagonal drill rod (15); six fixing bolts (14-3) are evenly distributed at the rear of the transmission sleeve (14); the middle part of the outer side of the transmission sleeve (14) is a central supporting conductive slip ring (14-5); the outer side of the central supporting conductive slip ring (14-5) is provided with a sliding wire (14-7) inside the central supporting busbar (14-6); the cable (21) extends to the rear of the transmission sleeve (14) and is connected to the aviation plug (33) through a spiral wire (35).

6. A deviation correction device for horizontal spiral drilling pipe curtain construction according to claim 5, characterized in that: The drill rod propulsion device (13) comprises a drill rod propulsion oil cylinder (13-7), a hollow drill rod propulsion oil cylinder (13-10), a drill rod propulsion device base (13-8), a drill rod propulsion device cover plate (13-3), a micro telescopic motor (13-2), a limit ball control ring and a hexagonal drill rod limit ball (13-4); two drill rod propulsion oil cylinders (13-7) and one hollow drill rod propulsion oil cylinder (13-10) are evenly embedded in the transmission sleeve (14); The rear sides of the drill rod propulsion oil cylinder (13-7) and the hollow drill rod propulsion oil cylinder (13-10) are provided with three transmission sleeve cable holes (14-4); the middle part of the drill rod propulsion base (13-8) is a drill rod passage of a hexagonal structure, and a groove is arranged on the drill rod propulsion base (13-8) near the drill rod passage of the hexagonal structure, and six hexagonal drill rod limiting ball grooves (13-9) for placing hexagonal drill rod limiting balls (13-4) are evenly distributed at the bottom of the groove, and the limiting balls control The lower part of the ring is provided with six inclined surface protrusions, which correspond to the six hexagonal drill rod limit ball grooves (13-9) one by one. The outer side of the limit ball control ring is provided with three micro telescopic motor connection blocks (13-6). The micro telescopic motor connection blocks (13-6) are welded to the telescopic rod of the micro telescopic motor (13-2). The micro telescopic motor (13-2) is fixed on the drill rod propeller cover plate (13-3). The drill rod propeller cover plate (13-3) is connected to the drill rod propeller. The base (13-8) is welded and connected; three drill rod propulsion cylinder sleeve holes (13-1) are arranged on the outside of the drill rod propulsion cover plate (13-3) and the drill rod propulsion base (13-8); the telescopic rods of the drill rod propulsion cylinder (13-7) and the hollow drill rod propulsion cylinder (13-10) extend into the drill rod propulsion cylinder sleeve holes (13-1) and are fixedly connected to the drill rod propulsion cover plate (13-3); and a through hole is arranged at the axis of the hollow drill rod propulsion cylinder (13-10).

7. A deviation correction device for horizontal spiral drilling pipe curtain construction according to claim 5, characterized in that: The front end of the hexagonal drill rod (15) is a transmission bolt (15-1), and the transmission bolt (15-1) is connected to the third universal joint (12) through a transmission bolt hole (15-2). The axis of the transmission bolt (15-1) has a transmission bolt cable hole (15-3) that runs through the front and back and is used to pass a cable (21). The cross section of the hexagonal drill rod (15) is a regular hexagon. Limiting ball clamping grooves (15-4) are arranged at equal intervals on six edges of the hexagonal drill rod (15), and limiting balls for controlling the forward and backward movement of the hexagonal drill rod (15) are arranged in the limiting ball clamping grooves (15-4).

8. A deviation correction device for horizontal spiral drilling pipe curtain construction according to claim 5, characterized in that: The excavation mechanism comprises a first excavation screw rod (16), an extended excavation screw rod (23), a cable centering plate (22), a socket fixing plate (36), an aviation plug (33), an aviation socket (34), a spiral wire (35) and an external conductive slip ring (37). Flange plates (16-1) are arranged at both ends of the first excavation screw rod (16). The flange plate (16-1) and the first excavation screw rod (16) are reinforced by rib plates (16-2). The front end of the first excavation screw rod (16) is connected to the aviation plug (33). A rigid hole socket is connected to the first excavation screw rod (16), a hexagonal drill rod driven channel (16-5) adapted to the hexagonal drill rod (15) and a common circular channel (16-7) are sequentially arranged in the first excavation screw rod (16) from front to back, the aviation socket (34) and the hexagonal drill rod driven channel (16-5) are separated by a cable drill rod isolation sleeve (16-6), three cable holes are evenly distributed outside the hexagonal drill rod driven channel (16-5), the three cable holes correspond to the three transmission sleeve cable holes (14-4) one by one, and the flange plate (16-1) The outer edge is provided with six bolt holes (16-4) corresponding to the six fixing bolts (14-3) one by one, and the first excavation screw rod (16) and the transmission sleeve (14) are connected and fixed by the fixing bolts (14-3) and the fixing nuts (16-3); the inner part of the extended excavation screw rod (23) is a common circular channel (16-7), the cable centering plate (22) is fixedly installed in the common circular channel (16-7), the socket fixing plate (36) is fixed on the outer side of the cable centering plate (22), and the socket fixing plate (36) is fixed on the outer side of the cable centering plate (22). 6) connecting various cables to an aviation socket (34); a cable protection tube (22-1) is provided between the two cable centering plates (22); the first excavation screw rod (16) and the extended excavation screw rod (23) are connected via a spiral wire (35) with aviation plugs (33) at both ends; an external conductive slip ring (37) is fixed on a reaction wall (29) where the rear axis of the pipe curtain drilling rig (25) is located, and is used to connect various cables to the operating system (24) and prevent the cable (21) from being torsionally damaged during rotation.

9. A deviation correction device for horizontal spiral drilling pipe curtain construction according to claim 8, characterized in that: A pipe curtain steel rail (30) is arranged on the side of the reaction wall (29) facing the pipe curtain steel pipe (1); a pipe curtain drilling machine (25) connected to the operating system (24) is arranged on the pipe curtain steel rail (30) at the rear side of the pipe curtain steel pipe (1); a supporting structure (32) is installed outside the pipe curtain steel pipe (1); a reference support platform (28) is also arranged beside the reaction wall (29); and a reference three-axis magnetic sensor (26) connected to the operating system (24) is arranged on the reference support platform (28).

10. A deviation correction method for horizontal spiral drilling pipe curtain construction using the device as claimed in claim 9, characterized in that: The method comprises the following steps: Step 1: After assembling and debugging the device, the pipe curtain drilling machine (25) is turned off, and the initial value of the three-axis magnetic sensor is set in the operating system (24), the drilling direction is set as the X-axis, the horizontal plane perpendicular to the drilling direction is set as the Y-axis, the height is set as the Z-axis, and the reference three-axis magnetic sensor (26) is set as the origin, and the initial height difference h0 and the initial horizontal distance y0 between the drill bit three-axis magnetic sensor (7-2) and the reference three-axis magnetic sensor (26) are recorded; Step 2: Drilling and monitoring the drill bit: The drill bit (7) is returned to its original position, and the pipe curtain drilling machine (25) starts to work, pushing the pipe curtain sleeve and the extended excavation screw (23) forward. During the drilling process, the total drilling depth and the current total height difference h between the drill bit three-axis magnetic sensor (7-2) and the reference three-axis magnetic sensor (26) are recorded every time a certain depth is drilled. i , current total horizontal distance y i , calculate the offset of the total jacking depth and the offset of the jacking depth of the i-th section Where i is the number of times the pipe curtain drilling machine (25) works and i≥1, h i-1 is the total height difference measured by the drill bit three-axis magnetic sensor (7-2) and the reference three-axis magnetic sensor (26) for the i-1th time, y i-1 The total horizontal distance measured for the i-1th time by the drill bit three-axis magnetic sensor (7-2) and the reference three-axis magnetic sensor (26); Step 3: Drill bit correction, the process is as follows: Step 301: When the offset of the total jacking depth Δ and the offset of the jacking depth of the i-th section Δ i When any value exceeds the allowable range, drilling is stopped immediately, and the upper platform (10-23) of the outer sleeve (10-11) of the steering controller is adjusted to a horizontal level through the console; Step 302: Determine the drilling length d required for correction according to the bending strength of the pipe-roof steel pipe. i , according to the formula Calculate the correction angle α; Step 303, drilling the guide hole according to the correction angle: the operating system (24) controls the central support (3) of the expansion sleeve to be opened and close to the pipe curtain sleeve, and the pipe curtain drilling machine (25) pulls the extended excavation screw (23) backward until the one-way gear (2-2) of the expansion sleeve (2) is separated from the matching one-way gear (14-2) of the transmission sleeve (14); Step 304, correcting the drilling of the guide hole: the upper platform (10-23) of the outer sleeve (10-11) of the steering controller is in a horizontal state, the rotating gear (10-2) of the steering controller is rotated until the upper platform (10-23) is parallel to the correction angle, and then the worm motor (10-10) is rotated to adjust the position of the guide clamp (10-5) until the drill bit (7) reaches the correction angle; The pipe curtain drilling machine (25) is started again, so that the first excavation screw rod (16) rotates and drives the hexagonal drill rod (15) to rotate, thereby driving the drill bit (7) to rotate; the drill rod propulsion device (13) is then controlled to make the micro telescopic motor (13-2) in a retracted state, and the drill rod propulsion cylinder (13-7) and the hollow drill rod propulsion cylinder (13-10) are controlled to move forward, and the micro telescopic motor (13-2) is extended at the same time, so that the hexagonal drill rod limit ball (13-4) is clamped in the limit ball clamping groove (15-4) of the hexagonal drill rod (15), so that the drill rod propulsion cylinder (13-7) and the hollow drill rod propulsion cylinder (13-10) can push the hexagonal drill rod (15) forward. The telescopic sleeve (5) and the drill bit (7) are moved forward, thereby pushing the telescopic sleeve (5) and the drill bit (7) forward; when the drill rod pushing cylinder (13-7) and the hollow drill rod pushing cylinder (13-10) reach the maximum stroke, the micro telescopic motor (13-2) is tightened, the drill rod pushing cylinder (13-7) and the hollow drill rod pushing cylinder (13-10) are returned to the initial position, and the drill rod pushing cylinder (13-7) and the hollow drill rod pushing cylinder (13-10) are controlled to move forward, and the micro telescopic motor (13-2) is extended at the same time, until the telescopic sleeve hexagonal slider (5-2) moves forward to the end of the telescopic sleeve slide rail (2-1) on the reaming sleeve (2) or the drill bit (7) has been corrected to within the allowable offset distance; If the drill bit (7) is still not corrected to within the offset distance, the micro telescopic motor (13-2), the reaming sleeve center support (3), the drill rod propulsion cylinder (13-7) and the hollow drill rod propulsion cylinder (13-10) are retracted, the pipe curtain drilling machine (25) is started, and the transmission sleeve (14) is pushed forward until the one-way gear (2-2) of the reaming sleeve (2) is meshed with the matching one-way gear (14-2) of the transmission sleeve (14), so that the reaming sleeve (2) rotates and drills forward until the telescopic sleeve (5) is completely retracted; Step 305, repeating steps 2 to 304 until the drill bit (7) is corrected to within the allowable offset distance and the drilling direction of the drill bit (7) returns to the X axis; Step 4: Adjustment completed, drilling resumed: Continue monitoring during the drilling process. If the drill bit (7) deviates again, stop drilling and perform trimming again until the pipe curtain drilling is completed.

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