Long pipe roof multi-fulcrum counter-force auxiliary drilling method based on software simulation positioning

Abstract

According to the long pipe curtain multi-fulcrum counter-force auxiliary drilling method based on software simulation positioning, three arch frames are installed on a concrete construction platform, and a drilling machine is installed on each arch frame; the positions in charge of drilling of the drilling machine are partitioned; using CAD software to simulate a tunnel face to design a hole site center point, four quadrant points on the periphery of a hole wall and a drilling machine positioning point for lofting; drilling machine positioning, wherein in the drilling process, it is guaranteed that multi-directional stress of the platform is stable, and meanwhile, according to the drilling sequence, all drilling machines conduct construction in the clockwise sequence from one side of the subarea to the other side of the subarea; and pipe joints are hoisted and installed, specifically, the step 4 to the step 6 are circulated to complete pipe curtain drilling and pipe lowering construction of all hole sites. The problems that drilling deflection factors are increased due to poor stability of a drilling machine and an auxiliary platform during pipe roofing operation in tunnel engineering, the matching non-sharing degree of auxiliary drilling machine lower pipe hoisting equipment is low, mutual interference is large when multiple drilling machines conduct construction at the same time, and the construction efficiency is difficult to exert and improve normally are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel construction, and in particular relates to a long-tube curtain multi-support point reaction force assisted drilling method based on software simulation positioning. Background Art

[0002] Spiral drill pipe curtains are a horizontal reinforcement measure used to reinforce the surrounding rock mass ahead of tunnels or horizontal tubular structures. They are typically used for preemptive reinforcement in soft soil, clay, sand, and some heavily weathered strata, particularly in medium- to low-strength strata. However, when drilling long sections in strata with medium strength (10 MPa) or higher, construction efficiency drops to 50% or even lower. Furthermore, limitations such as the stability of the gantry-assisted drilling platform and the workspace limit these limitations. Specifically, the stability of the work platform and the rig setup directly affect the deviation in drill hole angle after drilling. Poor platform stability and difficulty maintaining rig stability during drilling significantly increase the probability of drill hole deviation, impacting pipe curtain construction quality. Spatial constraints associated with multiple rigs operating on the auxiliary platform lead to low efficiency for a single pipe curtain. Furthermore, the difficulty in facilitating the installation of the curtain's heavy steel pipe sections during construction further impacts the overall efficiency of long, large-diameter (Φ600 and above) spiral drill pipe curtains in medium- to high-strength strata. Summary of the Invention

[0003] In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a long pipe curtain multi-point reaction-force assisted drilling method based on software simulation positioning, which is used to solve the problems of increased drilling deviation factors caused by poor stability of the drilling rig and auxiliary platform during pipe curtain operation in tunnel engineering, low matching and non-commonality of the pipe lowering and lifting equipment of each auxiliary drilling rig, and great mutual interference when multiple drilling rigs are working at the same time, making it difficult to normally perform and improve construction efficiency.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: A multi-point reaction-force assisted drilling method for a long tube curtain based on software simulation positioning includes the following steps: Step 1: Install a long tube curtain multi-support reaction force auxiliary construction platform. Install three arch frames on the concrete construction platform. Install a drilling rig on each arch frame. The three drilling rigs are numbered Z1, Z2, and Z3 from left to right. Step 2: Drilling positions are divided into zones. The zone rule is that each driller is responsible for drilling within one-third of the circumference of the tunnel face where the hole is designed. When a hole is located at the zone interface line, the construction of the hole is assigned to the preceding driller. Step 3: Use CAD software to simulate the tunnel face and design the hole center point, four quadrant points on the hole wall circumference, and the drilling rig positioning point; Step 31: Based on the actual tunnel face data, a tunnel face diagram is drawn in CAD software. Combined with the tunnel face data measured by the measuring instrument, five control points are marked on the tunnel face diagram for each designed hole location. The five control points here refer to the center point of each drill hole and the four quadrant points of the drill hole circumference. They are mainly used to visually determine the deviation between the drill bit and the hole mouth after the drilling rig is positioned. The center point is relatively insignificant. With the center point, the other four circumferential quadrant points can be drawn according to the drill hole radius. Step 32: Based on the control points described in step 31, use CAD software to draw the positions of all the holes of the drill rig on the tunnel face. When positioning the first hole, each drill rig on the same arch frame from hole 1 to hole i is positioned. The control points of the first articulated slider and the second articulated slider on the first arch frame are located on the arch frame. The corresponding marking points of the first articulated slider and the second articulated slider on the first arch frame are k1z1j1 and k1z1j2, respectively. At the same time, the extension length of the diagonal support screw k1z1xc1 and the extension length of the fine-tuning cylinder screw on the platform are recorded and recorded as k1z1sg1. Step 33. When locating the second hole position, the corresponding marking points of the first articulated slider and the second articulated slider on the first arch are k2z1j1 and k2z1j2 respectively, and the extension length of the diagonal support screw k2z1xc2 and the extension length of the fine-tuning cylinder screw on the platform are recorded. Similarly, when locating the i-th hole position, the corresponding marking points of the two sliders are kiz1j1 and kiz1j2, and the extension length of the diagonal support screw kiz1xci and the extension length of the fine-tuning cylinder screw on the platform are recorded. z1sgi; Step 34: Drilling rigs z2 and z3 mark the first and second articulated sliders on the corresponding arches, following the same steps as 31, 32, and 33, which are kiz2j1, kiz2j2 and kiz3j1, kiz3j2, respectively. The extended lengths of the diagonal support screws are z2xci, z3xci, and the extended lengths of the fine-tuning oil cylinder screws on the platform are z2sgi, z3sgi. To further illustrate how to use software to simulate the positioning parameters of various components of a drilling rig at different hole positions in advance, the simulation of the positioning parameters of the first and second holes on the left side of the left side of the drilling rig is taken as an example. When Z1 is drilling the first hole position on the left side of the construction face, the positions of the first hinged slider and the second hinged slider on the first arch are k1z1j1 and k1z1j2, respectively. The extension length of the diagonal support screw is k1z1xc1, and the extension length of the screw of the fine-tuning oil cylinder (3) on the platform is recorded as k1z1sg1. The positioning parameters of the second hole position are obtained by the following steps using CAD software: ① Rotate the drilling rig and platform around the tunnel axis so that the axis of the drill rod and the center point of the second hole are in the same vertical plane, while keeping the drilling rig platform level. At this time, the relative position of the first articulated slider on the arch frame is obtained (k2z1j1). It should be emphasized that the relative positions of the first articulated sliders on the front and rear arch frames are the same. ② Rotate the second slider around the tunnel axis and adjust the extension or shortening of the lead screw to achieve horizontal support for the platform. At this time, read the relative position k2z1j2 of the second slider and the extension of the diagonal support screw. It should be emphasized that the relative position of the second sliders on the front and rear ring arch frames and the extension of the front and rear diagonal support screws are the same; ③ Lift the drilling rig and base so that the center of the drill rod is at the same height as the center of the drill hole. At this time, read the extension of the cylinder screw k2z1sg1. It should be emphasized that the adjustment amount of the four cylinder screws of the drilling rig base cylinder is the same; After the drill rig quickly adjusts the simulated positioning parameters of each component, it can then make fine adjustments based on the on-site conditions to prevent inaccurate drilling caused by errors. This also avoids the problems of slow and difficult positioning caused by large errors in the combination parameters and lack of guidance when the drill rig switches hole positions for positioning and makes large adjustments to the combination parameters of different components. Step 4, drilling rig positioning: When positioning the drilling rig, use the electric chain hoist to pull the first arch frame, pull the first drilling rig platform so that the control point of the first articulated slider coincides with the control point kizij1 of the hole position to be constructed simulated by CAD, and at the same time use the jack or hand hoist to pull the second articulated slider to coincide with the control point kizij2, then tighten the fastening bolts on the two sets of sliders to lock the sliders and the I-beams, and set wedge blocks on the back of the sliders and the arch frame to further ensure that the sliders are locked, then according to the CAD simulation data, rotate the screw on the upper part of the first articulated slider to a length of zixci to keep the platform horizontal, adjust the extension of the four cylinders on the drilling rig to zisgi, and align the end of the drill pipe axis of the drilling rig with the measured hole position; the same applies to drilling rigs z2 and z3; Step 5: During the drilling process, the hand chain hoist is always kept in a tensioned state to further ensure the multi-directional force stability of the platform. At the same time, the drilling sequence during the drilling process is that each drilling rig is constructed in a clockwise order from one side to the other side of the partition; Step 6: Hoisting and installing pipe segments: When the drilling rigs on both sides of the arch frame need to install pipe segments after drilling is completed, use an excavator or other means to place the pipe segments under the hook along the tunnel direction, keep the pipe axis parallel to the tunnel axis, start the lifting trolley on the platform to synchronously lift the steel pipe, and lift it so that the pipe segment axis is consistent with the hole height. Then, after moving it horizontally to the corresponding hole position, lower the pipe segment for installation, jacking, or welding and assembly of the pipe segment. At the same time, when the platform plate is hoisted, if there is a hand chain hoist with a circumferential pull under the platform plate that blocks it, the electric chain hoist can be temporarily removed when the articulated slider corresponding to the drilling rig platform with the chain is in a locked state to avoid blocking the lifting of the pipe segment. After the pipe segment is installed, the tension of the chain hoist can be restored. Step 7: Repeat steps 4 to 6 to complete the drilling and pipe laying of all holes.

[0005] The two sets of articulated sliders of the pipe-roof multi-point reaction-force assisted construction platform are divided into a first articulated slider and a second articulated slider. The first articulated slider is connected to the platform plate in the form of a rotating hinge and is mounted on the back flange plate of the arc-shaped arch frame. The second articulated slider is hinged to the lower part of the platform plate through an adjustable screw. The first articulated slider and the second articulated slider are hingedly supported and connected to the platform plate through a screw.

[0006] The pipe curtain multi-point reaction force assisted construction platform is equipped with a pipe lifting frame, a pipe curtain drill rig, a drill rig base and a synchronous electric hydraulic screw. The four corners of the base of the pipe curtain drill rig are fixed with vertical hydraulic screw cylinders. As the extension and contraction of the hydraulic screw cylinder is adjusted, the drill rig base is raised and lowered so that the drill rod of the drill rig can reach the required height for drilling.

[0007] The pipe-roof multi-support reaction-force auxiliary construction platform is connected to the front and rear curved arch frames. Five longitudinal steel connecting rods connect the two arch frame webs, the tie steel connecting rods, the platform's chain electric hoist and the radial reaction steel connected to the rear curved arch frame web.

[0008] The pipe lifting frame includes a vertical support steel member and a transverse guide rail steel member fixedly connected to the top of the vertical steel support member. A transverse sliding lifting device is arranged on the transverse guide rail steel member. The lifting device is arranged on a platform on one side of the screw hinge support and is arranged parallel to the large and small mileage directions. End limit steel plates are provided at both ends of the transverse guide rail. The distance between the projection point of the lifting hook of the lifting device on the horizontal plane and the edge of the platform is greater than the pipe curtain drilling radius of 10 cm or more. The distance between the two horizontal transverse guide rails on the same platform is less than the length of the lifting pipe section.

[0009] The line connecting the arch back points at the same angle in the cross-sectional projection of the arc-shaped arch frame is parallel to the axis center line of the designed drilling axis.

[0010] When the chain electric hoist pulls the platform, the first hinged slider can slide along the I-beam arch flange plate with the platform, and the plane formed by the center of gravity of the electric hoist chain, the drill frame and the platform must be parallel to the cross section of the arch frame.

[0011] The slider and the arch back flange plate are locked and loosened with the arch frame by tightening and loosening screws on the lower side of the web. When locked, the gap between the arch back and the slider can be further wedged by a wedge block to fix the slider.

[0012] The arch frame is connected to the ground by a vertical arch frame at the designed hole position on the outermost side of the arch waist.

[0013] The four landing parts of the two arch frames are all connected by steel plates, and the connecting steel plates are fastened by bolts through anchor rods that are vertically driven and anchored in the concrete leveling layer and the lower surrounding rock. The tail ends of the five steel frames of the radial reaction support are all anchored in the reinforced concrete pier. The reinforced concrete pier has anchor rods driven on the concrete ground and the lower surrounding rock on the horizontal projection surface, and the tail ends of the anchor rods are exposed and anchored in the reinforced concrete pier.

[0014] The beneficial effects of the present invention are: 1. The two sets of articulated slides of multiple drilling platforms can be directly placed on the arch frame. The bottom and tail of the arch frame are equipped with a reaction and anchoring system with the lower concrete and surrounding rock. The bearing system is more stable, avoiding the construction of larger-sized and voluminous steel reaction frames or reinforced concrete reaction walls, saving engineering costs.

[0015] 2. The measurement and positioning described in the present invention simulates the position and elongation parameters of each component when drilling each hole in advance through CAD, and marks and records them, which can quickly achieve the target positioning of each component of the rack, avoiding the uncertainty of the coordinated adjustment of the slider position and the parameters of each telescopic part when the construction site is adjusted only according to the measured hole height and axis as a reference line, resulting in inaccurate positioning and low positioning efficiency.

[0016] 3. A set of parallel pipe synchronous lifting frames installed on each platform realizes the independent lifting and installation of pipes on each drilling rig without interfering with other hole positions, further reducing the workload of personnel and improving construction efficiency.

[0017] 4. The present invention provides a method for three drilling rigs to perform construction in different areas at the same time, thereby improving the construction efficiency of a single pipe-roof working surface per unit time and saving construction time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Among them: 1—drilling rig; 2—electric hydraulic screw; 3—oil cylinder; 4—drilling rig base; 4-1—platform; 5-1—vertical support steel; 5-2—transverse guide steel; 5-3—lifting equipment; 5-4—end limit steel plate; 5-5—hook; 6-1—first articulated slider; 6-2—second articulated slider; 7—arch frame; 8—steel connecting rod; 9—chain electric hoist; 10—reaction steel; 11—reinforced concrete pier; 12—concrete construction platform; 13—drilling; 14—screw. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] like Figure 1 As shown, a pipe curtain multi-point reaction-force assisted construction platform includes a pipe curtain drill rig 1, a synchronous electric hydraulic screw 2, the hydraulic screw cylinder 33 is fixedly connected to the pipe curtain drill rig base 4, a platform 4-1 for carrying and fixing the pipe curtain drill rig base 4, a pipe lifting frame fixed on the platform 4-1, two sets of articulated sliders for supporting and adjusting the platform, two front and rear arc-shaped arch frames 7 supporting the two sets of articulated sliders, the articulated sliders are directly mounted on the back flange plates 7-1 of the arc-shaped arch frames 7, five longitudinal steel connecting rods 8 for longitudinally fixing the webs of the two arch frames, an electric chain hoist 9 for connecting the steel connecting rods 8 and the platform 4-1, a radial reaction steel 10 connecting the web of the rear arc-shaped arch frame, a reinforced concrete pier 11 at the tail of the reaction steel 10, and a concrete construction platform 12 for supporting the foot of the arc-shaped arch frame 7.

[0022] The front and rear corresponding arch back point connection lines corresponding to the same angle around the arch center in the cross-sectional projection of the arc-shaped arch frame 7 are parallel to the axis line of the designed drill hole 13.

[0023] The two groups of articulated sliders supporting the platform 4-1 are divided into a first articulated slider 6-1 and a second articulated slider 6-2. The first articulated slider 6-1 is directly connected to the platform 4-1 in the form of a rotating hinge and is mounted on the web of the arc-shaped arch frame. The second articulated slider 6-2 is hinged to the lower part of the platform 4-1 through an adjustable screw 14. When the chain electric hoist 9 pulls the platform 4-1, the first articulated slider 6-1 can slide along the back flange plate of the arch frame with the platform 4-1. The plane formed by the chain of the chain electric hoist 9 and the center of gravity of the drill frame and the platform 4-1 must be parallel to the plane where the arc-shaped arch frame is located.

[0024] The two groups of articulated sliders and the flange plate on the back of the arch are locked and loosened with the arch by tightening and loosening the screws 16 on the lower side of the flange plate. When locking, the gap between the arch back and the two groups of articulated sliders can be further wedged with a wedge block to fix the two groups of articulated sliders.

[0025] The pipe lifting frame comprises a vertical support steel member 5-1 and a transverse guide steel member 5-2 fixedly connected to the top of the vertical support steel member 5-1. A transverse sliding lifting device 5-3 is mounted on the transverse guide steel member 5-2. The lifting device 5-3 is installed on the platform 4-1 on one side of the screw hinge support and is arranged parallel to the longitudinal and longitudinal directions. End-stop steel plates 5-4 are installed at both ends of the transverse guide steel member 5-2. The horizontal projection of the lifting device's hook 5-5 is at a distance of at least 10 cm from the edge of the platform 4-1 that is greater than the radius of the pipe curtain drill hole 13. The distance between two horizontal transverse guide steel members 5-2 on the same platform 4-1 is less than the length of the hoisted pipe section.

[0026] The arch frame 7 is connected to the ground with a vertical section arch frame at the outermost hole design position of the arch waist to release more space for construction personnel.

[0027] The four landing parts of the two arch frames 7 are all connected by connecting steel plates 7-3. The connecting steel plates 7-3 are fastened by bolts through anchor rods that are vertically driven and anchored in the concrete construction platform 12 and the lower surrounding rock. The tail ends of the five steel frames of the radial reaction steel 10 are all anchored in the reinforced concrete pier 11. The reinforced concrete pier is anchored on the concrete construction platform 12 and the lower surrounding rock, and the tail ends of the anchor rods are exposed and anchored in the reinforced concrete pier 11.

[0028] A multi-point reaction-force assisted drilling method for a long tube curtain based on software simulation positioning includes the following steps: Step 1: Install a long tube curtain multi-support point reaction force auxiliary construction platform and three drilling rigs 1, the three drilling rigs 1 are numbered Z1, Z2, and Z3 from left to right; Step 2: Drilling zoning: zoning the drilling positions of the drilling rigs. The zoning rule is that each drilling rig 1 is responsible for drilling holes 13 within an angle range of one-third of the circumference of the tunnel face. When a hole 13 is at the boundary line of the zoning, the construction of the hole 13 is assigned to the previous drilling rig. Step 3, measurement and layout, including the layout of the center points of the designed drilling holes 13 on the face, the four quadrant points on the circumference of the hole wall, and the drilling rig positioning points. Before drilling is implemented, the five control points of each designed hole position are marked on the face by measuring instruments. At the same time, CAD software is used to simulate the drilling rig positioning and layout points when the drilling rig is positioned at all hole positions on the face, including the points on the arch frame where the first articulated slider and the second articulated slider control points are located. For each drilling rig on the same ring steel frame, from hole 1 to hole i, the two sliders are marked with points at k1z1j1 and k1z1j2 respectively. At the same time, the extension length of the diagonal support screw k1z1xc1 is recorded, and the fine-tuning cylinder 3 on the platform 4 makes the electric hydraulic screw 2 extend by a length k1z1sg1; the second hole position platform 4 positioning position Set the corresponding marking points of the two sliders to k2z1j1 and k2z1j2, and record the extended length k2z1xc2 of the diagonal support screw 14 and the extended length k2z1sg2 of the electric hydraulic screw 2 by the fine-tuning cylinder 3 on the platform 4; and so on until the last hole platform 4 is positioned, set the corresponding marking points of the two sliders to kiz1j1 and kiz1j2, and record the extended length kiz1xci of the diagonal support screw 14 and the extended length z1sgi of the electric hydraulic screw 2 by the fine-tuning cylinder 3 on the platform 4; Similarly, z2 and z3 correspond to the first and second slider marking points of each borehole 13, respectively, kiz2j1, kiz2j2 and kiz3j1, kiz3j2. At the same time, the extension lengths of the diagonal support screw 14 are recorded as z2xci, z3xci, and the extension lengths of the electric hydraulic screw 2 made by the fine-tuning cylinder 3 on the platform 4 are recorded as z2sgi, z3sgi. Step 4, positioning and reinforcement of the drilling rig. When the drilling rig 1 is positioned, the electric chain hoist 9 is used to pull the pull ring on the platform 4, and the first articulated slider 6-1 is pulled so that its control point coincides with the control point kizij1 marked on the hole to be constructed. At the same time, the hand hoist is used to pull the second articulated slider 6-2 on the front and rear arch frames 7 to coincide with the control point kizij2. Then, the fastening screws 16 on the four sliders are tightened to lock the sliders and the flange plates on the back of the arch frame 7, and wedge blocks are set in the gaps between the sliders and the back of the arch frame 7 to further ensure that the sliders are locked. Then, the lead screw 14 on the upper part of the second articulated slider 6-2 is rotated to extend to a length of zixci to keep the platform 4 horizontal left and right, and the extension of the four lead screw cylinders 3 on the drilling rig is adjusted to zisgi to align the end of the drill rod axis of the drilling rig 1 with the measured hole position; Step 5: Start the drilling rig and start drilling. During the drilling process, the electric chain hoist 9 is always kept in a tensioned state to further ensure the multi-directional force stability of the platform 4. At the same time, the drilling sequence during the drilling process is that each drilling rig 1 is constructed in a clockwise order from one side of its partition to the other side; Step 6, hoisting and installing the pipe section; when the drilling rigs 1 on both sides of the arch frame have completed drilling 13 and need to install the pipe section, use an excavator or other means to place the pipe section under the hook 5-5 along the tunnel direction, keep the pipe axis parallel to the tunnel axis, start the lifting trolley 5-3 on the platform 4 to synchronously lift the steel pipe, lift it so that the pipe section axis is consistent with the hole height, then move it horizontally to the corresponding hole position, lower the pipe section to install the pipe section, push it in or weld it together. At the same time, when the pipe section is being hoisted, if there is a chain of an electric chain hoist 9 with a circumferential pull below the platform 4 that blocks it, the electric chain hoist 9 can be temporarily removed when the articulated slider corresponding to the drilling rig platform 4 with the chain is in a locked state to avoid blocking the lifting of the pipe section. After the pipe section is installed, the tensioning state of the chain hoist 9 can be restored; Step 7: Repeat steps 4 to 6 to complete the drilling and pipe laying of all holes.

Claims

1. A multi-point reaction force assisted drilling method for a long tube curtain based on software simulation positioning, characterized in that: The following steps are involved: Step 1: Install a long tube curtain multi-support reaction force auxiliary construction platform. Install three arch frames on the concrete construction platform. Install a drilling rig on each arch frame. The three drilling rigs are numbered Z1, Z2, and Z3 from left to right. Step 2: Drilling Zones: The drilling positions of the drilling rigs are divided into zones. The zone rules stipulate that each drilling rig is responsible for drilling within one-third of the circumference of the tunnel face where the designed hole position is located. When a hole is drilled at the zone interface line, the construction of the hole is assigned to the preceding drilling rig. Step 3: Use CAD software to simulate the tunnel face and design the hole center point, four quadrant points on the hole wall circumference, and the drilling rig positioning point; Step 31: Based on the actual tunnel face data, a tunnel face diagram is drawn in CAD software. Combined with the tunnel face data measured by the measuring instrument, five control points are marked on the tunnel face diagram for each designed hole location. The five control points are the center point of each drill hole and the four quadrants of the drill hole circumference. Step 32: Based on the control points described in step 31, use CAD software to draw the positions of all the holes of the drill rig on the tunnel face. When positioning the first hole, each drill rig on the same arch frame from hole 1 to hole i is positioned. The control points of the first articulated slider and the second articulated slider on the first arch frame are located on the arch frame. The corresponding marking points of the first articulated slider and the second articulated slider on the first arch frame are k1z1j1 and k1z1j2, respectively. At the same time, the extension length of the diagonal support screw k1z1xc1 and the extension length of the fine-tuning cylinder screw on the platform are recorded and recorded as k1z1sg1. Step 33: When locating the second hole position, the corresponding marking points of the first and second articulated sliders on the first arch are k2z1j1 and k2z1j2, respectively. At the same time, the extension length of the diagonal support screw k2z1xc2 and the extension length of the fine-tuning cylinder screw on the platform are recorded. Similarly, when locating the i-th hole position, the corresponding marking points of the two sets of articulated sliders are kiz1j1 and kiz1j2. At the same time, the extension length of the diagonal support screw kiz1xci and the extension length of the fine-tuning cylinder screw on the platform are recorded. z1sgi; Step 34: Drilling rigs z2 and z3 mark the first and second articulated sliders on the corresponding arches, following the same steps as 31, 32, and 33, which are kiz2j1, kiz2j2 and kiz3j1, kiz3j2, respectively. The extended lengths of the diagonal support screws are z2xci, z3xci, and the extended lengths of the fine-tuning oil cylinder screws on the platform are z2sgi, z3sgi. Step 4. Drilling rig positioning and reinforcement: When positioning the drilling rig, use the electric chain hoist to pull the first arch frame, pull the first drilling rig platform so that the control point of the first articulated slider coincides with the control point kizij1 of the hole position to be constructed simulated by CAD, and at the same time use the jack or hand hoist to pull the second articulated slider to coincide with the control point kizij2. Then tighten the fastening bolts on the two sets of sliders used to lock the sliders and the I-beams, and set wedge blocks on the back of the sliders and the arch frame to further ensure that the sliders are locked. Then, according to the CAD simulation data, rotate the screw on the upper part of the first articulated slider to a length of zixci to keep the platform horizontal left and right, adjust the extension of the four cylinders on the drilling rig to zisgi, and align the end of the drill pipe axis of the drilling rig with the measured hole position; the same applies to drilling rigs z2 and z3: Step 5: During the drilling process, the hand chain hoist is always kept in a tensioned state to further ensure the multi-directional force stability of the platform. At the same time, the drilling sequence during the drilling process is that each drilling rig is constructed in a clockwise order from one side to the other side of the partition; Step 6: Hoisting and installing pipe segments: When the drilling rigs on both sides of the arch frame need to install pipe segments after drilling is completed, use an excavator or other means to place the pipe segments under the hook along the tunnel direction, keep the pipe axis parallel to the tunnel axis, start the lifting trolley on the platform to synchronously lift the steel pipe, and lift it so that the pipe segment axis is consistent with the hole height. Then, after moving it horizontally to the corresponding hole position, lower the pipe segment for installation, jacking or welding and assembly of the pipe segment. At the same time, when the platform plate is hoisted, if there is a hand chain hoist with a circumferential pull under the platform plate blocking the lifting of the pipe segment, the two sets of articulated slide blocks corresponding to the drilling rig platform with the chain pull are in a locked state, and the electric chain hoist can be temporarily removed to avoid blocking the lifting of the pipe segment. After the pipe segment is installed, the tension of the chain hoist can be restored. Step 7: Repeat steps 4 to 6 to complete the drilling and pipe laying of all holes.

2. The method for multi-point reaction-force assisted drilling of a long tube curtain based on software simulation positioning according to claim 1 is characterized in that: The two sets of articulated sliders of the pipe-roof multi-point reaction-force assisted construction platform are divided into a first articulated slider and a second articulated slider. The first articulated slider is connected to the platform plate in the form of a rotating hinge and is mounted on the back flange plate of the arc-shaped arch frame. The second articulated slider is hinged to the lower part of the platform plate through an adjustable screw. The first articulated slider and the second articulated slider are hingedly supported and connected to the platform plate through a screw.

3. The method for multi-point reaction-force assisted drilling of a long tube tent based on software simulation positioning according to claim 1 is characterized in that: The pipe curtain multi-point reaction force assisted construction platform is equipped with a pipe lifting frame, a pipe curtain drill rig, a drill rig base and a synchronous electric hydraulic screw. The four corners of the base of the pipe curtain drill rig are fixed with vertical hydraulic screw cylinders. As the extension and contraction of the hydraulic screw cylinder is adjusted, the drill rig base is raised and lowered so that the drill rod of the drill rig can reach the required height for drilling.

4. The method for multi-point reaction-force assisted drilling of a long tube tent based on software simulation positioning according to claim 1 is characterized in that: The pipe-roof multi-support reaction-force auxiliary construction platform is connected to the front and rear curved arch frames. Five longitudinal steel connecting rods connect the webs of the two arch frames, the tie steel connecting rods, the platform's chain electric hoist, and the radial reaction steel connected to the web of the rear curved arch frame.

5. The method for multi-support point reaction-force assisted drilling of a long tube tent based on software simulation positioning according to claim 3 is characterized in that: The pipe lifting frame includes a vertical support steel member and a transverse guide rail steel member fixedly connected to the top of the vertical steel support member. A transverse sliding lifting device is arranged on the transverse guide rail steel member. The lifting device is arranged on a platform on one side of the screw hinge support and is arranged parallel to the large and small mileage directions. End limit steel plates are provided at both ends of the transverse guide rail. The distance between the projection point of the lifting hook of the lifting device on the horizontal plane and the edge of the platform is greater than the pipe curtain drilling radius of 10 cm or more. The distance between the two horizontal transverse guide rails on the same platform is less than the length of the lifting pipe section.

6. The method for multi-support point reaction-force assisted drilling of a long tube tent based on software simulation positioning according to claim 2 is characterized in that: The line connecting the arch back points at the same angle in the cross-sectional projection of the arc-shaped arch frame is parallel to the axis center line of the designed drilling axis.

7. The method for multi-support point reaction-force assisted drilling of a long tube tent based on software simulation positioning according to claim 1 is characterized in that: When the chain electric hoist pulls the platform, the first hinged slider can slide along the I-beam arch flange plate with the platform, and the plane formed by the center of gravity of the electric hoist chain, the drill frame and the platform must be parallel to the cross section of the arch frame.

8. The method for multi-support point reaction-force assisted drilling of a long tube tent based on software simulation positioning according to claim 1 is characterized in that: The hinged slider and the arch back flange plate are locked and loosened with the arch frame by tightening and loosening the screws on the lower side of the web. When locking, the gap between the arch back and the hinged slider is further wedged with a wedge block to fix the slider.

9. The method for multi-support point reaction-force assisted drilling of a long tube tent based on software simulation positioning according to claim 2, characterized in that: The arch frame is connected to the ground by a vertical arch frame at the designed hole position on the outermost side of the arch waist.

10. The method for multi-point reaction-force assisted drilling of a long tube tent based on software simulation positioning according to claim 4, characterized in that: The four landing parts of the two arch frames are all connected by steel plates, and the connecting steel plates are fastened by bolts through anchor rods that are vertically driven and anchored in the concrete leveling layer and the lower surrounding rock. The tail ends of the five steel frames of the radial reaction support are all anchored in the reinforced concrete pier. The reinforced concrete pier has anchor rods driven on the concrete ground and the lower surrounding rock on the horizontal projection surface, and the tail ends of the anchor rods are exposed and anchored in the reinforced concrete pier.

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