209results about "Shaft equipment" patented technology

The invention discloses a small-diameter circular ultra-deep vertical shaft foundation pit large shield split launching method, which belongs to the technical field of water tunnel shield construction, and comprises the following steps: 1, determining a shield launching position; 2, prefabricating a negative ring duct piece and a special-shaped extension steel ring; 3, mounting a special-shaped extension steel ring and a counter-force frame; 4, checking and accepting the originating node; 5, shield launching tunneling is carried out, and a negative ring segment is synchronously installed; 6, after shield launching is completed, the negative ring duct piece is chiseled away; and 7, steel bars are welded on the arc-shaped steel plates, and tunnel portal steel bars are bound on the arc-shaped steel plates. The arc-shaped interface of the to-be-tunneled tunnel portal and the shield tunneling machine can be adjusted to be the starting face perpendicular to the axis of the shield tunneling machine, it is guaranteed that the shield tunneling machine rapidly and safely completes starting, meanwhile, the constructed tunnel portal and the starting shaft end wall can form a plane, and guarantee is provided for smooth operation of a later hydraulic structure; and meanwhile, the embedded tunnel portal can be conveniently constructed by utilizing the arc-shaped steel plate embedded by the negative ring duct piece, so that the cost increase caused by steel bar planting is avoided, and the anchoring effect is improved.

The invention belongs to the technical field of gravity energy storage, and particularly relates to a high-channel-utilization-rate gravity energy storage system based on vertical circulation operation, which comprises at least one energy conversion shaft, at least one empty return shaft, a top shaft transfer section and a bottom shaft transfer section, the top hoistway transfer section is communicated with the upper part of the energy conversion hoistway or the empty return hoistway through reciprocating translational motion, and the bottom hoistway transfer section is communicated with the lower part of the energy conversion hoistway or the empty return hoistway through reciprocating translational motion; racks are arranged on the inner walls of the hoistways, gears are arranged on the elevator, and the racks and the gears are meshed to achieve movement of the elevator in the circulating hoistways. Compared with an existing steel wire rope or chain annular conveying chain scheme, the conveying load is transferred to different heights of the vertical channel well wall in a distributed mode, the bottom and top horizontal transverse moving mechanism and the vertical load are transferred to a horizontal wheel rail, the conveying capacity is higher, the service life is longer and more reliable compared with a traditional circulating conveying chain cable, and the later operation and maintenance cost is reduced.

A vertical shaft construction slag sliding well bottom rock ballast gathering and protecting device comprises a supporting structure, an upper fence and a sliding groove structure are sequentially arranged on the supporting structure from top to bottom through a traction structure, and a lower fence is arranged on the lower portion of the sliding groove structure. The lower fence and the sliding groove structure are driven through a linkage structure. When the lower fence is unfolded, the sliding groove structure is folded; when the lower fence is folded, the sliding groove structure is unfolded. According to the stone slag gathering and protecting device at the bottom of the slag slipping well for vertical shaft construction, stone slag falling to the bottom of a vertical shaft can be effectively gathered; meanwhile, in the bottom deslagging operation process, the device can stop rock ballast falling from the upper portion.

The invention discloses an underground gravity energy storage shaft and chamber spatial arrangement structure and a design method. The underground gravity energy storage shaft and chamber spatial arrangement structure comprises a vertical shaft; a weight block storage chamber group; the weight block storage chamber groups are arranged on the two sides of the vertical shaft with the vertical shaft as the symmetry axis, and the weight block storage chamber group on each side comprises five weight block storage chambers arranged in parallel. The weight block transportation chamber group is used for transporting weight blocks among the weight block storage chambers; the weight block transportation chamber group comprises four parallel weight block transportation chambers, and the weight block transportation chambers are perpendicular to the weight block storage chambers; the head end and the tail end of the weight block transportation chamber group on each side of the vertical shaft are respectively connected with a weight block transportation chamber; and the connecting section chamber is used for connecting the weight block transportation chamber close to the side of the vertical shaft with the vertical shaft. According to the scheme, the difficulty and cost of excavation construction and maintenance of the chamber can be reduced while the requirements for gravity energy storage transportation and storage capacity can be well met.

The utility model discloses a safe operation platform for shaft excavation supporting construction, and belongs to the technical field of shaft expanding excavation. Comprising a protective top plate, an excavator platform and a plurality of I-shaped steel, the protective top plate is connected with a guide pipe in a penetrating mode, the lower end of the guide pipe is close to the excavator platform, a spiral conveyor is arranged in the guide pipe in a sleeved mode and fixed to the protective top plate, and a sliding channel is reserved between the spiral conveyor and the guide pipe. A plurality of supporting wheels capable of being adjusted in a telescopic mode are annularly distributed on the protection top plate and the excavator platform, a plurality of lifting lugs are annularly distributed on the protection top plate, and the technical effects that the excavation efficiency is improved, and muck falling from the protection top plate can be conveniently and intensively cleaned are achieved.

The invention discloses an intelligent vertical shaft anti-floating pile system and a construction technology thereof, and belongs to the field of vertical shaft drainage, and the intelligent vertical shaft anti-floating pile system comprises a vertical shaft anti-floating pile system which is used for bearing pulling resistance generated by underground water and internal and external access of the underground water; the sensing monitoring system is used for anti-floating pile stress strain monitoring, anti-floating pile displacement monitoring and underground water level monitoring; the water pumping and draining system is used for pumping and draining underground water; the data system is used for carrying out data acquisition, transmission and processing on the shaft anti-floating pile system and underground water; the control system is used for controlling the water pumping and draining system to pump and drain water. According to the hollow anti-floating pile, the condition of the pile body is monitored in real time through various sensors, the drainage pipe and the anti-floating pile are communicated to form a drainage network, underground water is pumped and drained in time through the cooperation of the water pump, and it is guaranteed that the vertical shaft meets the anti-floating requirement under the condition that the space utilization rate of the vertical shaft is increased.

The invention discloses an ultra-deep vertical shaft of a hydraulic engineering tunnel and a jacking pipe and a construction method, and belongs to the technical field of hydraulic engineering. Comprising occluded waterproof support piles which are supported on the periphery of a shaft wall, and the lower ends of the occluded waterproof support piles extend below the bottom of the shaft and are embedded into bottom rocks; the bottom plate is supported at the bottom of the vertical shaft, a plurality of anti-floating anchor rods are arranged in the bottom plate, and the lower ends of the anti-floating anchor rods of the bottom plate are vertically anchored into bottom rock at the bottom of the vertical shaft; the bottom beam support is poured on the periphery of the top of the bottom plate and tightly attached to the inner side wall of the occlusion waterproof support pile, a plurality of support anti-floating anchor rods which are inclined downwards are anchored into the bottom beam support, and the lower ends of the support anti-floating anchor rods are anchored into rock; and the waterproof curtains are arranged on the peripheries of the occluded waterproof support piles. The occluded waterproof support piles, the waterproof curtain, the bottom plate and the bottom beam support form a stable anti-floating structure system, so that the anti-floating capability and the support waterproof capability of the ultra-deep vertical shaft are improved; the problems that a large excavator cannot go down to the shaft for excavation and a small excavator cannot move due to the narrow space of the ultra-deep vertical shaft are solved.

The invention discloses a water quality and water level monitoring device for groundwater exploration, and belongs to the technical field of water quality and water level monitoring, the water quality and water level monitoring device comprises a main shell, the outer surface of the main shell is provided with an auxiliary driving assembly used for driving in a vertical shaft, and the bottom of the main shell is connected with a monitoring main body. According to the device, the auxiliary driving assembly is arranged, the first motor drives the main shell to ascend or descend in the vertical shaft through the driving shaft, the driving wheel, the transmission belt, the driven wheel, the second rotating shaft and the driving wheel, the load of the traction cable is reduced, breakage of the traction cable is avoided, and the descending and recycling efficiency of the device in the vertical shaft is improved; even if a traction cable is broken midway, the device can still complete recovery and reduce loss through operation of a driving wheel, meanwhile, a driving shaft drives a drill bit to rotate through a sixth bevel gear and a fifth bevel gear, and when recovery is conducted, if the interior of a vertical shaft is blocked by sundries accidentally, automatic obstacle clearing can be achieved through rotation of the drill bit, and the recovery difficulty of the device is reduced.

The invention discloses a method for calculating the limit sinking depth in vertical shaft sinking construction, and the method comprises the steps: S1, building a construction mechanical model in a vertical shaft lifting and controlling sinking process, and obtaining an analysis equation; s2, converting the analysis equation according to the value of the blade foot end resistance Rj; s3, calculating a vertical suspension force T; and S4, calculating the limit sinking depth Hmax of the vertical shaft. The method has the advantages that the analysis equation is obtained by building the construction mechanical model in the shaft lifting and controlling sinking process, the limit sinking depth Hmax of the shaft is finally obtained by calculating the vertical suspension force T, and reference is provided for open caisson parameter design.

The invention relates to the technical field of hydraulic engineering construction, and discloses a shaft excavation ground surface settlement monitoring device which comprises a base, and a lifting mechanism is installed at the top of the base and used for lifting the position of a top monitoring structure; the rotating mechanism is mounted at the top of the lifting mechanism and is used for adjusting the direction of the top monitoring structure; and the monitoring mechanism is mounted at the top of the rotating mechanism and is used for monitoring ground surface settlement. The method comprises the following steps: step S1, a measuring point laying step; step S2, a data acquisition step; step S3, a data transmission step; s4, a data analysis and early warning step; and S5, a feedback and control step. According to the invention, through the combined application of the static force level gauge and the micro-differential pressure liquid level sensor and the precise positioning of the lifting mechanism and the rotating mechanism, continuous and high-resolution relative elevation measurement can be carried out on the local area around the vertical shaft.

The invention discloses a device and method for replacing a large submersible pump of a large water vertical shaft, and belongs to the technical field of mine drainage maintenance equipment and methods. According to the technical scheme, an operation platform is fixed to the bottom of a vertical shaft, square holes are cut in a steel plate plane of the operation platform, a cage bottom plate platform is located above a horizontal roadway in the lowest middle section, holes are cut in the bottom face of the cage bottom plate platform, and a dispatching winch is fixed to the cage bottom plate platform; a steel wire rope of the dispatching winch is connected with the large submersible pump through the cage bottom plate hole and the square hole of the operation platform. And the large submersible pump is lifted to the working platform by the steel wire rope of the dispatching winch, the connected fixed suspension steel wire rope, the high-pressure hose and the large submersible pump lead cable are removed, and then the large submersible pump is lifted and dragged to the lowest middle section of the horizontal roadway for replacement. The replacing device and method for the large shaft submersible pump are innovated, safety risks and hidden dangers are eliminated, and the large shaft submersible pump can be rapidly and stably replaced.

The invention discloses a safety protection system for vertical shaft construction. The safety protection system comprises a vertical shaft; the safety disc is horizontally arranged in the vertical shaft in a manner of moving up and down and is used for preventing articles from falling into the shaft bottom; the lifting driving assembly is used for driving the safety disc to do lifting motion in the vertical shaft; the guide mechanism is arranged between the shaft wall of the vertical shaft and the safety disc and used for guiding the safety disc to stably ascend and descend in the vertical direction of the vertical shaft; and the locking mechanism is arranged between the safety disc and the guide mechanism, and when the safety disc falls at a speed exceeding a certain speed, the locking mechanism can cooperate with the guide mechanism to prevent the safety disc from falling. The beneficial effects of the invention are that personnel safety and equipment completeness can be guaranteed at the same time.

The invention discloses an automatic pressure relief reinforced concrete inner-layer well wall which is characterized in that an outer-layer well wall and an inner-layer well wall are sequentially arranged on the well wall of a shaft from outside to inside, a water guide steel pipe is arranged in the inner-layer well wall, and the water inlet end of the water guide steel pipe extends towards the outer-layer well wall and is communicated with underground water fluid; the drainage end of the water guide steel pipe extends towards the well bottom and penetrates out of the inner side face of the inner-layer well wall, and the water inlet end of the water guide steel pipe is connected with a water inlet control valve through a water collecting box and communicated with underground water fluid through the water inlet control valve. By arranging the water guide steel pipe, water is drained to the lower portion of a water-rich stratum, water flow is effectively guided out of a shaft, the water pressure borne by the inner-layer well wall is relieved, the inner-layer well wall is prevented from being fractured and fractured due to the fact that the water pressure external load is reduced, the inner-layer well wall can be designed to be thinner, the requirement for the material strength is lowered, and the service life of the inner-layer well wall is prolonged. And building materials are saved, and the construction cost is reduced.

The invention discloses a shaft connection measurement wire suspension device, comprising a bracket, a capstan, a steel wire and a cantilever beam; the bracket comprises two horizontal and symmetrically arranged cross beams, a first vertical beam and a second vertical beam respectively vertically fixed at both ends of the cross beam, and a first supporting beam and a second supporting beam fixed between the first vertical beam and the second vertical beam, and the cross beam, the first vertical beam and the second vertical beam form an inverted "U"-shaped structure, so that the bracket can be clamped on the wellhead of the shaft; a triangular support is fixed on the outer side of the first vertical beam, a support plate is horizontally fixed on the triangular support, a capstan is arranged on the support plate, and a steel wire is wound on the capstan; one end of the cantilever beam is connected to the first supporting beam through a universal joint, and the other end of the cantilever beam is slidably connected to the second supporting beam; both ends of the cantilever beam are fixed with grooved rollers, one end of the steel wire is fixed on the capstan, and the other end passes through the grooved rollers in turn and then naturally droops into the shaft. The device has a simple structure, is easy to fix, and can be repeatedly disassembled and assembled.

The invention discloses a deep-shaft long-distance shield tunnel positioning measurement structure and measurement method, and relates to the technical field of tunnel construction, the deep-shaft long-distance shield tunnel positioning measurement structure comprises a long-distance tunnel excavated along the underground and two deep shafts communicated with the tunnel, a fixed support is arranged at the wellhead position of each deep shaft, and a steel rope is vertically put down by the fixed support towards the direction of each deep shaft; the fixing support is movably provided with a positioning frame, the positioning frame is provided with a positioning hole for a steel rope to penetrate through, the fixing support is provided with a leveling assembly for keeping the positioning frame horizontal, the fixing support is provided with a first driving part for driving the positioning frame to move, and the side, close to the deep shaft, of the positioning frame is provided with a guide assembly corresponding to the steel rope. And infrared distancers facing the positioning frame are arranged on the fixing bracket on the two sides of the positioning frame. The first driving piece drives the positioning frame to move, the position of the steel rope in the horizontal plane of the deep shaft is rapidly adjusted, the adjusted position of the steel rope is measured and calculated again through the infrared distance meter, and it is guaranteed that the vertical datum line of directional measurement is remeasured accurately.

The invention belongs to the technical field of water conservancy and hydropower engineering, and particularly discloses a vertical shaft inlet structure with a broken line weir, which comprises a ventilation column and a plurality of drainage plates, the ventilation column is arranged in the center of the shaft; the multiple drainage plates are arranged in the circumferential direction of the ventilation column, and an overflowing area is formed between every two adjacent drainage plates; one end of each drainage plate is fixedly connected with the ventilation column, the other end of each drainage plate is fixedly connected with the shaft wall of the vertical shaft, and the edge of each drainage plate is provided with a broken line weir. The drainage plates are arranged, so that part of water flow can be guided to the center of the vertical shaft, and the overflowing space is increased. Meanwhile, water flow can not only enter the vertical shaft along the well wall, but also overflow into the vertical shaft along the broken line weir at the edge of the drainage plate, so that the overflowing width is greatly increased, and the overflowing capacity is improved. The vertical shaft inlet structure with the broken line weir further has the advantages of being simple in structure, easy to construct and the like.

The present invention discloses a water quality and water level monitoring device for groundwater exploration, belonging to the technical field of water quality and water level monitoring, including a main housing. An auxiliary driving assembly for driving the movement in a shaft is arranged on the outer surface of the main housing, and a monitoring main body is connected to the bottom of the main housing. In the present invention, by arranging the auxiliary driving assembly, the first motor drives the main housing to rise or fall in the shaft through a driving shaft, a driving wheel, a transmission belt, a driven wheel, a second rotating shaft and a driving wheel, reducing the load of the traction cable, avoiding the breakage of the traction cable, improving the lowering and recovery efficiency of the device in the shaft, and even if the traction cable breaks midway, the device can still be recovered through the operation of the driving wheel, reducing losses. At the same time, the driving shaft drives the drill bit to rotate through a sixth bevel gear and a fifth bevel gear. During recovery, if the shaft is accidentally blocked by sundries, the self-rotation of the drill bit can achieve automatic obstacle clearance, reducing the recovery difficulty of the device.

The utility model discloses a diving tubular pump with fully-adjustable shaft overflowing blades, and relates to the technical field of water conservancy projects. The device comprises a diving tubular pump, the left end of the diving tubular pump is connected with a round-square gradually-changing flow channel through a left-end expansion joint, and the right end of the diving tubular pump is connected with a vertical shaft flow channel through a right-end expansion joint; a vertical shaft is arranged in the vertical shaft flow channel; an asynchronous submersible motor, a planetary gearbox, a thrust bearing box, a pump section hydraulic model and a hollow adjusting shaft are sequentially arranged in the submersible tubular pump from left to right, and the right end of the hollow adjusting shaft extends into the vertical shaft to be connected with a built-in synchronous hydraulic adjusting mechanism. Diffusion type guide vanes are not arranged any more, excellent conventional pump section hydraulic models, such as south-to-north water diversion series and the like, which are already checked and affirmed can be directly utilized, and meanwhile dynamic operation full adjustment of the vanes of the submersible tubular pump is achieved.

The application discloses a well wall supporting device and a construction method thereof, which comprises a hinged seat, two groups of hinged rods movably arranged on the two sides of the hinged seat, a connecting piece arranged at the end of one group of the hinged rods, a buckling piece adapted to the connecting piece arranged at the end of the other group of the hinged rods, and an adjusting sliding groove arranged on each of the two groups of the hinged rods. When the device is used, the connecting piece and the buckling piece are used to connect the two groups of the well wall supporting devices to be arranged in a ring shape around the well wall, then a hydraulic device is connected to the piston rod, the internal pressure of the hydraulic adjusting part is increased, a mutual resisting ring structure is formed between the supporting devices, the resisting plate is in contact with the well wall by driving the hydraulic telescopic pipe as the internal pressure of the hydraulic adjusting part continuously increases, and the well wall is supported. The above structure has good adaptability, can be adapted to different diameter use scenes, and effectively improves the overall operation efficiency.

The utility model relates to the technical field of measuring equipment for underground structure construction, in particular to a telescopic and rotatable wire suspension bracket for contact measurement, which can adjust the front and rear positions of the wire rope in a shaft, avoid the wire rope from being too far forward or far backward in the shaft, prevent it from sticking to the inner wall of the shaft and affecting the descent of the wire rope, and improve practicality; it comprises a U-shaped bracket, the front end of the U-shaped bracket is fixedly connected to a support plate, a winch is arranged on the support plate, a brake device is arranged on the winch, a wire rope is wound on the winch, one end of the wire rope is fixed on the winch, a support frame is fixedly connected to the rear side of the top end of the U-shaped bracket, a connecting rod is fixedly connected to the support frame, a guide notch is arranged on the cantilever beam, a roller frame is fixedly arranged on the lower side of the top end of the cantilever beam, a lower groove roller is rotatably arranged on the roller frame, one end of the wire rope is fixed on the winch, and the other end of the wire rope naturally droops after passing around the lower groove roller and the upper groove roller in sequence.

The invention provides a soft rock vertical shaft deformation value prediction method based on machine learning, and relates to the technical field of soft rock vertical shaft deformation value prediction. Comprising the steps of obtaining to-be-measured soft rock shaft data; inputting the shaft data of the soft rock shaft to be measured into the constructed soft rock deep well deformation prediction model to obtain a prediction result; the construction method of the soft rock deep well deformation prediction model comprises the following steps: determining an initial data set according to engineering geological data; introducing noise into the initial data set to obtain a new noise data set; determining construction conditions of a soft rock deep well deformation prediction model, and constructing an initial soft rock deep well deformation prediction model set based on a random forest, XGBoost, LightGBM and k neighbor regression according to the new noise data set; and performing precision evaluation on the models in the initial soft rock deep well deformation prediction model set, and determining a final soft rock deep well deformation prediction model. The problem of low prediction accuracy of the shaft deformation value of the soft rock shaft is solved.

The utility model discloses a pipe wall seepage water spiral collecting and discharging system for vertical shaft TBM tunneling construction, and belongs to the technical field of vertical shaft construction. A pipe wall seepage water spiral collecting and discharging system for vertical shaft TBM tunneling construction comprises water collecting tank sections which are provided with fixing openings and installed on the inner wall of a vertical shaft at the inclination angle of 45 degrees, a water collecting tank is installed on the inner wall of the vertical shaft of the water collecting tank section located at the tail end, a water suction pump is arranged in the water collecting tank, and the water suction pump pumps accumulated water out of the vertical shaft through a drainage pipeline. A T-shaped connector is formed between every two adjacent water collecting tank sections, a first silica gel strip is installed at each connector, the multiple water collecting tank sections are connected to form a spiral shape, water can be concentrated and guided to the bottommost water collecting tank, a water suction pump arranged inside is automatically started, accumulated water is pumped out of a vertical shaft through a drainage pipeline, and the water collecting tank is arranged at the bottom of the vertical shaft. The whole process can be automatically operated, accumulated water is timely drained, and the influence on the construction environment is avoided.

The utility model belongs to the technical field of wall protecting pipes, and particularly relates to a special connecting wall protecting pipe for a special anti-penetrating thick-wall deep well, which comprises a pipe, a pipe step and an inner wall lantern ring, one end of the pipe is pushed outwards through a die and expanded outwards to form the pipe step, and the pipe step is matched with a pipe body of the pipe in a matched mode. A step-shaped gap for embedding the inner wall lantern ring in a matched manner is formed between the pipe step and the end part of the pipe inserted into the pipe step, and the pipe, the pipe step and the inner wall of the inner wall lantern ring are connected to form a smooth curved surface. After the two pipes are connected in an inserted mode through the pipe steps, the inner wall lantern ring embedded between the two pipes enables the inner walls of the two pipes to be connected to form a smooth and continuous curved surface, and therefore the situation that the pump is scraped or the safety of the pipes is affected when the pump is put down and taken out is avoided.

A modular platform system for vertical ore stope mining, comprising: a top platform having an access opening formed therein for accessing a raise opening of a raise above a stope of a mine; an equipment deck adapted to receive equipment; and, at least one winch having at least one respective cable coupled thereto, the at least one winch mounted on the top platform, the at least one cable extendable through the access opening, the at least one cable having at least one respective cable end coupled to the equipment deck; wherein the at least one winch is operable to move the equipment deck and the equipment between a raised position proximate a top of the raise at the top platform and a lowered position proximate a bottom of the raise at a top of or within the stope.

The invention discloses a method for repairing a shaft of a coal mine non-stop air return vertical shaft, which comprises the following steps of: firstly, carrying out water cutting and punching on an anti-explosion cover, installing a lifting system, and then assembling an assembled fixed disc and a special-shaped construction hanging scaffold in the shaft underground by utilizing a personnel safety channel and by virtue of protection of a steel wire rope; well wall broken points and concentrated water spraying points which are explored in advance are reinforced and blocked; and fifthly, after the air return vertical shaft is repaired, under the protection of a lifting system, the special-shaped construction hanging scaffold and the assembly type fixing disc in the shaft are disassembled in a blocking mode and conveyed out of the shaft through a personnel safety channel, and finally a ring fire reinforcing mode is adopted for sealing and reinforcing a drilled hole of the anti-explosion cover. The unfavorable conditions of high air speed, high dust, high noise and high gas of the air return vertical shaft can be overcome, the whole repairing process can ensure that the mine does not stop working, the problems that a traditional coal mine shaft is low in repairing efficiency and multiple in potential safety hazard can be solved, and meanwhile high efficiency, safety and adaptability are achieved.

The present invention discloses a mechanical wall cutting and filling mining method for steeply inclined thin ore veins, comprising the following steps: S1, dividing the steeply inclined thin ore vein into a middle section and ore blocks, and excavating a pedestrian material riser within the pillars between the ore blocks; S2, excavating an intra-vein transport tunnel, and then excavating a pedestrian material riser upward through the intra-vein transport tunnel to construct a stope connecting road; S3, using a milling machine to mine from one side to the other, without wall cutting after the first layer is mined, and after the second layer is mined, the surrounding rock is wall cut, and a false bottom is laid in the first layer, leaving a chute for the road; after mining the third layer, a scraper enters the stope to transport ore to the chute for unloading, and after mining is completed, the surrounding rock is wall cut, and then filling is carried out to reserve space for the scraper to operate in the next layer; S4, continuously performing each layer mining operation upward to complete the mining of each segmented ore body. The filling mining method of the present invention solves the technical problems of high mining production costs and lack of operational safety in the prior art.

The application provides a tankway joint width detection vehicle and a detection method. The tankway joint width detection vehicle comprises a vehicle frame and a data processing control unit. One side of the vehicle frame is provided with wheels, a signal emitting head A and a signal receiving head A. The signal emitting head A and the signal receiving head A are arranged along the traveling direction of the vehicle frame. Straight line signals emitted by the signal emitting head A can be reflected to the receiving end of the signal receiving head A through the side wall of the tankway. The signal emitting head A is signal connected with the signal output port of the data processing control unit, and the signal receiving head A is signal connected with the signal input port of the data processing control unit. According to the application, the data processing control unit automatically reads the time interval of signal disconnection of the signal receiving head and calculates the joint width H. The joint width H is rapidly detected, the detection efficiency is improved, the workload and the data volume are small, and the manpower and equipment cost are saved.

The invention discloses an automatic inspection method and device based on a mine shaft ladder compartment, and belongs to the technical field of coal mine shaft inspection. The method comprises the steps that a lifting moving device and an annular moving device drive an image collecting device to obtain the longitudinal position Di and the annular angle Aj of the inner wall of a vertical shaft in real time; integrating the longitudinal position Di and the annular angle Aj through a data processing device to obtain position information (Di, Aj); uploading the position information (Di, Aj) in real time in response to the detected unqualified crack on the inner wall of the vertical shaft, so as to realize the accurate positioning of the crack; according to the invention, automatic inspection of cracks on the inner wall of the mine shaft can be realized, detailed data such as accurate positions, image states, crack extension width and length of unqualified cracks (cracks with potential risks) can be obtained, the inspection efficiency is greatly improved, the most real crack information can be obtained, and the method and the device can be used for providing an important basis for workers to find the unqualified cracks. And important guarantee is provided for timely finding and processing potential safety hazards.

The utility model relates to a pre-supporting device for reservoir vertical shaft excavation. The pre-supporting device comprises an annular supporting assembly and a plurality of radial supporting assemblies. The annular supporting assembly comprises a plurality of supporting units, the multiple supporting units are sequentially connected end to end to define a rotating cavity, the multiple radial supporting assemblies are all arranged in the rotating through cavity, the outer walls of the multiple radial supporting assemblies abut against the inner circumferential wall of the rotating through cavity, and the multiple radial supporting assemblies are arranged at intervals in the center line direction of the rotating through cavity; the multiple supporting units are arranged to be spliced into the annular supporting assembly, when the whole pre-supporting device is transported, the multiple hollow supporting units are directly transported, concrete is filled when the pre-supporting device reaches a reservoir, the firmness of the pre-supporting device is not affected, the carrying weight is reduced, and transportation is convenient.

The present invention relates to the technical field of underground pipeline construction, and provides a large-diameter pipe withdrawal device and a pipe withdrawal method. In the large-diameter pipe withdrawal device, the machine head connection part is connected to the inside of the pipe jacking machine head. The power jacking part is slidably connected to the base guide rail of the working shaft. One end of the traction member is connected to the machine head connection part. The other end of the traction member extends from the pipe jacking machine head through each pipe withdrawal section to the working shaft and is connected to the power jacking part. The power device is used to drive the power jacking part to slide along the base guide rail, so as to drive the traction member to drag the pipe jacking machine head to extrude each pipe withdrawal section and withdraw the pipe into the working shaft. Through this structural arrangement, the original power device is installed in reverse, so that the power device pushes the power jacking part in the reverse direction. Furthermore, the power jacking part drives the traction member to drag each pipe withdrawal section and the pipe jacking machine head out of the pipe withdrawal pipeline one by one through the machine head connection part. The structure of the large-diameter pipe withdrawal device is relatively simple and the construction is relatively convenient.