CN117307036A - Underground large-diameter drilling equipment and construction method - Google Patents
Underground large-diameter drilling equipment and construction method Download PDFInfo
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- CN117307036A CN117307036A CN202311013255.7A CN202311013255A CN117307036A CN 117307036 A CN117307036 A CN 117307036A CN 202311013255 A CN202311013255 A CN 202311013255A CN 117307036 A CN117307036 A CN 117307036A
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- 238000005553 drilling Methods 0.000 title claims abstract description 219
- 238000010276 construction Methods 0.000 title claims abstract description 28
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- 238000000034 method Methods 0.000 claims description 44
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- 230000000087 stabilizing effect Effects 0.000 claims description 21
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- 230000002457 bidirectional effect Effects 0.000 claims description 3
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F3/00—Severing by means other than cutting; Apparatus therefor
- B26F3/004—Severing by means other than cutting; Apparatus therefor by means of a fluid jet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
- B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
- E21B19/04—Hooks
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
- E21B19/102—Slips; Spiders ; Catching devices using rollers or spherical balls as load gripping elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/022—Control of the drilling operation; Hydraulic or pneumatic means for activation or operation
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/046—Directional drilling horizontal drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/10—Correction of deflected boreholes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
Abstract
The invention discloses underground large-diameter drilling equipment, which comprises a large-diameter pipe following drilling machine, a large-diameter pipe following guiding drilling system, a collapse body metal detection and breaking system and a self-moving multifunctional rescue operation cabin, wherein the large-diameter pipe following guiding drilling system is arranged on the underground large-diameter pipe following drilling machine; the large-diameter pipe following drilling machine is used for efficiently constructing a large-diameter horizontal hole and is used as a rescue channel; the large-diameter heel pipe guiding drilling system adopts a primary, secondary or tertiary hole protection mode according to the length of the collapse body and the stratum; the high-efficiency drilling and accurate guiding in the complicated collapse stratum can be realized, and the drilling quality and the drilling track are ensured to meet the requirements; the collapse body metal detection and breaking system can finely detect metal components in the collapse body, determine the accurate azimuth and scale of the metal components and realize the rapid cutting of the metal components; the self-moving multifunctional rescue operation cabin can be used for assisting in clearing obstacles at the bottom of a rescue hole and improving the construction efficiency of rescue drilling while ensuring the safety lifting of personnel in the cabin.
Description
Technical Field
The invention belongs to the technical field of mining or tunnel construction, relates to research and development of emergency rescue equipment, and particularly relates to underground large-diameter drilling equipment and a construction method.
Background
In the mining or tunnel construction process, collapse accidents occur, and when the roadway collapses, the situation that a personnel exit channel is blocked by a collapse body often occurs. The roadway collapse is generally characterized by large collapse amount, loose collapse body, poor stability and complex collapse body structure, and the problems of large rescue difficulty, high risk, easiness in occurrence of secondary disasters and the like exist in anchor rods, anchor cables, steel arches and the like.
When collapse accidents occur, trapped people are generally rescued by manually excavating a small pilot tunnel, and due to loose collapse bodies and limited in pilot tunnel space, rescue time and other aspects, the pilot tunnel can be simply supported by using sleepers, the supporting force is limited, the danger coefficient in the rescue process is high, secondary accidents are easy to occur, and the rescue difficulty is high; because the manual excavation mode is adopted, the manual excavation mode is limited by the operation space, and only simple tools can be adopted, so that the labor intensity is high, a large number of rescue workers need to be configured to alternately excavate, and the rescue risk is increased.
By constructing the large-diameter rescue channel in the collapse body, the communication and rescue channel of trapped people can be quickly constructed, and in the drilling process, the sleeve can play a role in protecting holes, so that the collapse of the rescue channel can be prevented, and the rescue channel is a safe and efficient rescue means.
At present, in tunnel rescue, a large-diameter rescue drilling machine is generally adopted for construction, and is limited by a drilling process and a drilling tool, so that the problems of large drilling machine size, high requirements on drilling sites, poor stratum adaptability, low drilling efficiency and the like are caused.
The section size of the mine tunnel is much smaller than that of a highway tunnel, the use of the existing rescue drilling machine is greatly limited, the geological condition of the mine tunnel is more complex, collapse accidents are easy to occur, and no effective rescue equipment and method exist at present.
Disclosure of Invention
The invention aims to solve the technical problems of low collapse rescue efficiency, high labor intensity of rescue workers, high risk in rescue process, poor safety and the like of the conventional roadway, and provides underground large-diameter drilling equipment and a construction method.
In order to achieve the above task, the present invention adopts the following technical solutions:
the utility model provides a major diameter drilling equipment in pit, its characterized in that by major diameter in the pit with the pipe rig, major diameter with pipe direction drilling system, collapse body metal detection and tear system open, from the multi-functional rescue operation cabin of moving and constitute, wherein:
The large-diameter pipe following drilling machine is used for constructing a large-diameter horizontal hole and is used as a rescue channel;
the large-diameter pipe-following guide drilling system comprises a gyroscope measurement-while-drilling system and a drilling track deviation correcting system, and is used for adopting a primary, secondary or tertiary hole protection mode according to the length of a collapse body and a stratum, wherein:
the gyroscope measurement while drilling system is used for monitoring whether the drilling track is deflected in real time and guaranteeing high-efficiency and rapid drilling of primary and secondary casing pipe and casing pipe drilling;
the drilling track deviation correcting system is used for correcting the deviation of a drilling track in real time when the drilling track is deviated, a guide mechanism is arranged at the position of a three-stage sleeve pipe head, and the size of a guide angle in the guide mechanism is randomly adjusted within a certain angle range through a bias oil cylinder arranged at the position of the three-stage sleeve pipe head, so that the switching of the straightening and deviation correcting operation is realized;
the guide mechanism comprises a large-diameter universal shaft which is arranged between a cutter head drill bit and a large-diameter spiral drill rod, and can deflect at any angle along with a guide casing head while transmitting large torque;
the collapse body metal detection and collapse body breaking system mainly comprises a metal detection system and a collapse body metal breaking system; wherein:
The metal detection system comprises an electromagnetic antenna, a data acquisition system and three-dimensional inversion software, and is used for finely detecting metal components in a collapse body and determining the accurate azimuth and scale of the metal components; wherein:
the three-dimensional inversion software system images and displays the distribution positions of the collapse body metal components according to the focusing electric method and the electromagnetic antenna detection data, and provides a basis for breaking and dismantling the metal components;
the collapse body metal breaking and dismantling system is used for realizing rapid cutting of metal components and mainly comprises a hydraulic cutting tool bit, a hydraulic cutting pipeline system, a high-pressure water source system, a sand mixing system and a control system, wherein:
the hydraulic cutting tool bit is arranged at the front end of the drill bit, the drill bit rotates to drive the hydraulic cutting tool bit to rotate, and when the drill bit meets a metal component, the hydraulic cutting tool bit realizes cutting of the metal component;
the hydraulic cutting pipeline system is a multi-section quick connecting pipeline and is used for providing high-pressure sand mixing water for the hydraulic cutting tool bit;
the high-pressure water source system provides a high-pressure water source for the hydraulic cutting system;
The sand mixing system can mix cutting sand in high-pressure water, and cutting sand with different specifications and materials is arranged in the sand mixing system, so that the cutting sand can be switched according to the materials and specifications of the metal components;
the control system can control the flow and pressure of the high-pressure water source, the sand mixing amount and the sand mixing type of the sand mixing system according to the parameters such as the metal detection result, the pipeline connection condition and the like;
the self-moving type multifunctional rescue operation cabin is used for guaranteeing safe lifting of personnel in the manned cabin and is used as a rescue hole bottom for assisting obstacle clearance.
According to the invention, the underground large-diameter pipe-following drilling machine comprises a double-rotation large-torque power head, a combined feeding device, a rapid hoisting system, a clamping and centering system, a supporting system, an electrohydraulic double-control remote control system, a crawler body and a power vehicle; wherein:
the double-rotation large-torque power head is used for realizing small-volume large-output torque and improving the drilling length and the processing capability of accidents in holes, wherein the double-rotation large-torque power head and the clamping and centering system are positioned on an upper guide surface of the combined feeding device, the lower part of the quick hoisting system is hinged with a chassis of the crawler body, and the supporting system is positioned on the lower end surface of the combined feeding device;
The double-rotation high-torque power head is provided with an inner pipe power head and an outer pipe power head, wherein a main shaft of the inner pipe power head is connected with a hexagonal prism-shaped inner spiral drill rod and a front end cutter head in a quick plug-in mode, and the outer pipe power head is connected with a main shaft of an outer sleeve in a quick plug-in mode; the inner pipe power head drives the spiral drill rod and the front end cutter head, the outer pipe power head drives the outer sleeve, the inner pipe power head and the outer pipe power head adopt independent bidirectional rotation, so that the inner pipe power head can quickly cut a collapse body, the outer pipe power head can reduce drag and follow up, and the inner pipe power head and the outer pipe power head are matched to quickly remove slag;
the combined feeding device adopts two groups of feeding cylinders to respectively drive an inner pipe power head and an outer pipe power head, wherein the end of the inner pipe feeding cylinder is arranged on a clamping centralizer, the end of a cylinder barrel is arranged on the inner pipe power head, the end of the outer pipe feeding cylinder is arranged on the clamping centralizer, and the end of the cylinder barrel is arranged on the outer pipe power head; the cylinder barrel of the inner pipe feeding cylinder penetrates through the box body of the outer pipe power head, the inner pipe feeding cylinder and the outer pipe feeding cylinder stretch to realize independent feeding and pulling-up of the two power heads, the spiral drill rod and the front end cutter head are convenient to be detached, and the excess amount of the inner pipe is adjusted;
The rapid hoisting system is of a folding portal frame structure and is used for realizing low transport height of the drilling machine, the upper supporting leg can support a roadway top plate, and the rapid hoisting system is stable; in the working state of the quick hoisting system, the protection anchor net is arranged on the upper part of the folding arm, and after the folding arm stands up, the protection anchor net is propped against a tunnel or a tunnel top plate through an internal oil cylinder, and meanwhile, the protection anchor net is firmly fixed, so that equipment and personnel protection in a certain range are realized;
the clamping and centering system comprises a clamp and a centering device, wherein the clamp is used for assisting in clamping a drilling tool so as to quickly connect an outer pipe; the centralizer plays a role in centralizing the spiral drill rod and the front end cutter head in the drilling process, so that the spiral drill rod and the front end cutter head are prevented from deflecting, the clamp holder and the centralizer can be changed in diameter, the use requirement of a multi-stage outer pipe is met, and the multi-stage casing following drilling process is realized in a matched mode.
The supporting system comprises four parts, namely a chassis support, a front support, a rear support, a top plate support and a side support, and is used for providing reaction force for feeding and pulling up the inner pipe and the outer pipe, wherein:
the chassis support consists of four hydraulic support legs to realize the monitoring and adjustment of the gesture, the front and rear supports realize the stability of maintaining the drilling state of the drilling machine, the top plate support is provided by the upper support legs of the quick hoisting system, and the side supports ensure the stability of the narrow rescue drilling machine;
The electrohydraulic double-control remote control system comprises a near-end control system and a far-end control system of the underground large-diameter pipe-following drilling machine, wherein the near-end control system adopts hydraulic control, the far-end control system adopts electric remote control to realize integrated centralized control of a drilling site, and drillers can master the condition of the drilling site in all directions;
the power vehicle is positioned at the rear end or one side of the underground large-diameter pipe-following drilling machine and provides power for the underground large-diameter pipe-following drilling machine.
Specifically, the power car provides high-pressure oil sources for the large-diameter pipe-following drilling machine to drive the actuating mechanism to act, and the power car can independently walk, and during operation, the power car adopts high-pressure hose connection with the underground large-diameter pipe-following drilling machine to be provided with high-pressure quick connectors, and hydraulic filters are arranged on the high-pressure hose connection pipes.
Specifically, the outer tube power head adopts a push-grinding type structure with four motors and driving wheels to drive a large gear, so as to realize large-torque rotation;
the inner tube power head is independently driven by an inner curve motor, and a motor main shaft is of a hollow structure, so that necessary power and signal transmission channels are provided for the hole bottom.
Specifically, the outer tube power head adopts a large main shaft through hole design, the diameter of the through hole is larger than that of the spiral drilling rod with the maximum diameter, and the outer tube power head is used for being matched with a multi-stage sleeve to realize a multi-stage sleeve-following-tube drilling process.
The combined feeding device of the pipe-following drill adopts a combined sectional structure, and each feeding machine body is connected in a bolt or buckling mode and the position is determined by a positioning pin;
when the underground large-diameter pipe-following drilling machine has the condition of hole bottom clamping stagnation, a power head connector is arranged on a main shaft of an inner pipe power head, the large-diameter end of the power head connector is of a spline or flange structure and is connected with an inner hole of the main shaft of an outer pipe power head, and the torque and the feeding pulling force of the two power heads are converged to the main shaft of the outer pipe power head or the main shaft of the inner pipe power head, so that the inner pipe power head and the outer pipe power head are changed into synchronous rotation from independent rotation and are changed into synchronous feeding pulling from independent feeding pulling;
the hoisting arm of the quick hoisting system is of a hollow structure, the hoisting winch is arranged at the end part of the hoisting arm, the phase-change pulley, the large pulley and the small pulley are all arranged inside the hoisting arm, the hoisting wire rope is wound in a mode that the rope is discharged from the hoisting winch, passes through the large pulley and the small pulley and is decomposed into two wire ropes at the lower part of the small pulley, and the two wire ropes are respectively connected with lifting hooks at the two ends after respectively bypassing the phase-change pulley; the hoisting steel wire rope drives the telescopic rope to synchronously lower and recover the lifting hook through the hoisting winch;
The clamping system is provided with a plurality of rotatable rollers in the radial direction, the rotating shafts of the rollers are parallel to the main shaft of the power head, the rollers play a role in supporting and righting the outer tube, and the main shaft of the rollers can float in the radial direction so as to realize that the diameter of the outer tube is adjustable; the clamp holder is radially provided with a plurality of slips, the slips play a role in clamping the outer pipe, the slips can float in the radial direction, and the clamping diameter of the outer pipe is adjustable.
Specifically, from multi-functional rescue operation cabin of moving includes manned cabin, leading camera, audio means, air monitoring device, wheeled power unit, electrohydraulic drive device, stabilising arrangement, high strength cable of bundling, cable traction device, remote monitoring platform, forced draft device, broken device of tearing open in hole bottom, wherein:
the front camera, the audio device and the remote monitoring platform form a manned cabin remote communication system for monitoring personnel states in the cabin in real time; the air monitoring device and the forced ventilation device form a personnel guarantee system in the cabin so that the personnel carrying cabin enters the hole bottom to implement forced ventilation and air monitoring and early warning;
the rear part of the manned cabin is respectively connected with the wheel type power unit and the electrohydraulic driving device in series, the stabilizing device is arranged at the top of the manned cabin, the remote monitoring platform drives the wheel type power unit to pull the manned cabin to independently move through the electrohydraulic driving device, and meanwhile, the friction block of the stabilizing device can be controlled to extend out to prop up the sleeve wall, so that the safety parking of the manned cabin is realized;
The rear part of the manned cabin is connected with a bundling type high-strength cable and a cable traction device to form a manned cabin anti-collision system, the cable traction device is used for dragging the manned cabin through the high-strength cable, the depth and the running speed in a hole of the manned cabin are monitored and controlled through the extending length of the cable, the speed reduction of the manned cabin close to the bottom of the hole is realized, the parking brake at the bottom of the hole is reached, and the personnel casualties caused by the collision of the manned cabin to the bottom of the hole or the punching of a sleeve pipe due to misoperation are prevented.
The bunched high-strength cable is formed by pouring a power cable, a steel wire rope, a signal wire, a ventilation pipe and a wear-resistant flame-retardant antistatic shell; the ventilation pipes are arranged in the middle, the power cables and the signal wires are symmetrically arranged around the ventilation pipes at intervals, and supports are formed outside the ventilation pipes to avoid compression deformation of the ventilation pipes; the wear-resistant flame-retardant antistatic shell is positioned on the outer side of the clustered high-strength cable.
Specifically, the hole bottom breaking and disassembling device comprises a hydraulic shearing device, a hydraulic core drill, a rock splitting device and a front top assisting gas leg, wherein an electrohydraulic driving device drives the hydraulic shearing device to realize hole bottom metal shearing, a quick-disassembly shoulder support is arranged at the rear part of the hydraulic core drill, one end of the front top assisting gas leg is arranged at the rear end of the hydraulic core drill, the other end of the front top assisting gas leg is arranged on a manned cabin mounting seat, auxiliary propulsion is provided for the hydraulic core drill in the rock drilling process, and hole bottom boulder breaking and disassembling are realized through the hydraulic core drill punching and the static pressure splitting of the rock splitting device.
The construction method of the underground large-diameter drilling equipment is characterized by comprising the following steps of:
according to the type and scale of the collapse body, constructing a large-diameter horizontal rescue borehole by using underground large-diameter drilling equipment, detecting the approximate position and scale of a metal component in the collapse body by adopting metal advanced detection, and then cutting the metal component into small sizes by using a hydraulic cutting mode;
when a hole substrate is difficult to process during drilling, a self-moving type multifunctional rescue operation cabin is utilized to implement rescue hole bottom auxiliary obstacle clearing operation, so that a rescue channel is opened for trapped people;
after the rescue channel is formed, carrying out rescue drilling escape operation by utilizing the self-moving type multifunctional rescue operation cabin, and lifting trapped personnel out of the hole;
the rescue hole bottom auxiliary obstacle clearance operation comprises the following steps of:
step 1: the construction of the rescue hole is blocked, a spiral drilling tool in the sleeve is pulled back, and rock scraps in the sleeve are cleaned by sweeping the hole;
step 2: hoisting the manned cabin into the escape passage, connecting a driving vehicle and a high-strength cable, carrying out no-load operation after the cable is towed, slowly moving to the bottom of the hole, observing the condition in the escape passage in the whole course by a front camera in the self-moving multifunctional rescue operation cabin, and carrying out monitoring and early warning on air in the escape passage;
Step 3: after the manned cabin reaches the hole bottom, the fault condition of the hole bottom is probed through a remote video system, and a manual hole bottom obstacle clearing scheme is formulated;
step 4: opening an air pipeline paved along with the manned cabin, carrying out forced ventilation on the hole bottom by using a ventilation system, monitoring and early warning on the air condition of the hole bottom, forcibly stopping the ventilation system for a period of time after the air condition of the hole bottom is normal, and continuously monitoring the air condition;
step 5: after the safe operation of the manned cabin and the normal air condition at the bottom of the hole are confirmed, the manned cabin is pulled back to the hole opening by the traction device through the high-strength cable, rescue workers carry hydraulic scissors to enter the manned cabin to the bottom of the hole according to the hole bottom obstacle clearing scheme, the stabilizing device is started to finish parking braking, and forced ventilation is started;
step 6: the hydraulic shear is used for shearing an anchor rod and an anchor rope, the hydraulic rock core drill and the hydraulic splitter are combined for static pressure rock breaking, the boulder breaking and the removing are completed, and the passenger cabin returns to the ground after the obstacle clearing operation is completed;
the rescue drilling escape operation comprises the following steps of:
step 1: after the rescue hole is communicated, the spiral drilling tool in the sleeve is pulled back, and the sweeping hole cleans rock debris in the pipeline to form an escape channel;
step 2: hoisting the manned cabin into the escape passage, connecting a driving vehicle, a high-strength cable and a cable traction device, carrying out no-load operation, slowly moving to the bottom of a hole, observing the condition in the passage in the whole course through a front camera in the cabin, and carrying out monitoring and early warning on air in the passage;
Step 3: after confirming that the manned cabin runs safely, the manned cabin is pulled back to the hole opening by the traction device through the high-strength cable, rescue workers enter the manned cabin to reach the bottom of the hole, the stabilizing device is started to finish parking braking of the manned cabin, and the personnel enter a trapped area to assist the trapped personnel to enter the manned cabin;
step 4: closing the stabilizing device, and dragging the manned cabin by the dragging device to slowly return and fully monitoring the personnel state in the manned cabin;
step 5: the manned cabin is operated to the orifice, the stabilizing device is started, parking braking of the manned cabin is completed, the rescue workers assist trapped people to exit the manned cabin, and escape of the people is completed.
The underground large-diameter drilling equipment has the following beneficial effects:
the large-diameter horizontal drilling is constructed by adopting the large-diameter pipe-following drilling machine, the large-diameter pipe-following guiding drilling system can realize complex collapse stratum, efficient drilling and accurate guiding are realized, drilling quality and drilling track are guaranteed to meet requirements, when the drilling is carried out in a collapse body, and barriers such as anchor rods and anchor cables are encountered, rapid breaking and dismantling are carried out through breaking and dismantling tools, so that the drilling construction efficiency is improved, time is strived for rescue, and the self-moving type multifunctional rescue operation cabin can guarantee safe and efficient lifting of rescue personnel.
Drawings
FIG. 1 is a schematic diagram of a large diameter casing drilling machine;
FIG. 2 is a schematic diagram of a dual swing high torque power head;
FIG. 3 is a schematic view of a modular feeder apparatus;
FIG. 4 is a schematic view of a hoist system installation location;
FIG. 5 is a schematic diagram of a hoisting system;
FIG. 6 is a schematic diagram of a primary drilling construction drill assembly;
FIG. 7 is a schematic diagram of a two-stage casing drilling system;
FIG. 8 is a schematic view of tertiary heel tube pilot drilling;
FIG. 9 is a schematic diagram of tertiary heel tube trajectory control drilling;
FIG. 10 is a schematic view of the arrangement of focusing electrotome electrodes/antenna rows on the tool bit
FIG. 11 is a digital simulation result;
FIG. 12 is a three-dimensional inversion software logic diagram;
FIG. 13 is a schematic view of a metal breaking system;
FIG. 14 is a schematic view of the structure of the self-moving multifunctional rescue operation cabin;
FIG. 15 is a schematic view of a bundled high strength cable construction;
FIG. 16 is a schematic view of a hole bottom breaker.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Detailed Description
This embodiment provides a major diameter drilling equipment in pit, including major diameter with pipe rig, major diameter with pipe direction drilling system, collapse body metal detection and tear system, the multi-functional rescue operation cabin of self-moving, wherein:
The underground large-diameter pipe-following drilling machine comprises: the device comprises a double-rotation large-torque power head, a combined feeding device, a rapid hoisting system, a clamping and centering system, a supporting system, an electrohydraulic double-control remote control system, a crawler body and a power vehicle; wherein:
the double-rotation high-torque power head is provided with an inner pipe power head and an outer pipe power head, wherein the inner pipe power head drives the spiral drill rod and the front end cutter head, the outer pipe power head drives the outer sleeve, the inner pipe power head and the outer pipe power head adopt independent bidirectional rotation, the inner pipe power head is used for rapidly cutting a collapse body, the outer pipe power head is used for reducing drag and following, and the inner pipe power head and the outer pipe power head are matched for rapidly discharging slag.
The combined feeding device adopts two groups of feeding cylinders to respectively drive the inner pipe power head and the outer pipe power head, the cylinder ends of the feeding cylinders are arranged on two sides of the power head by adopting flange structures, the cylinder ends of the feeding cylinders are connected and arranged on two sides of the clamp holder by adopting hinge shafts, the independent feeding and pulling of the double power heads are realized, the screw drill rod and the front end cutter head are convenient to be disassembled, and the excess of the inner pipe is adjusted.
The quick hoisting system adopts a folding portal frame structure to realize the low transportation height of the drilling machine, and the upper supporting leg can support the tunnel roof and stably install the hoisting system.
The clamping and centering system consists of a clamp holder and a centering device, wherein:
the clamp holder can assist in clamping the spiral drill rod and the front end cutterhead so as to quickly connect the outer pipe;
the centralizer can perform a centralizing function on the spiral drill rod and the front end cutter head in the drilling process, and the spiral drill rod and the front end cutter head are easy to cause deflection of drilling tracks due to the fact that dead weights of the spiral drill rod and the front end cutter head are large, and the centralizer can effectively prevent the spiral drill rod and the front end cutter head from deflection. In the embodiment, the used clamp holder and centralizer are variable in diameter, so that the passing requirement of the multi-stage outer pipe is met, and the multi-stage casing drilling process is realized in a matched mode.
The supporting system is used for providing reaction force for the feeding and pulling force of the inner pipe and the outer pipe, and the structure comprises: chassis support, back and forth support, roof support, side support four parts, wherein:
the chassis support consists of four hydraulic support legs to realize the monitoring and adjustment of the gesture, the front and rear supports realize the stability of maintaining the drilling state of the drilling machine, the top plate support is provided by the upper support legs of the quick hoisting system, and the side supports ensure the stability of the narrow rescue drilling machine;
the large-diameter pipe-following drilling machine matched electrohydraulic double-control remote control system comprises a large-diameter pipe-following drilling machine near-end control system and a large-diameter pipe-following drilling machine far-end control system; wherein:
The near-end control system of the large-diameter pipe-following drilling machine adopts hydraulic control to ensure the reliability of operation in the rescue operation process;
the remote control system of the large-diameter pipe following drilling machine adopts electric remote control to realize integrated centralized control of a drilling site, and drillers can master the condition of the drilling site in all directions.
The components and functional systems involved in the large diameter pipe drilling machine are all integrated on the crawler chassis. The transfer transportation is convenient, and each part adopts a modularized design and can be rapidly disassembled from the crawler chassis so as to adapt to different roadway conditions.
The matched power vehicle provides a high-pressure oil source for the large-diameter pipe-following drilling machine so as to drive the actuating mechanism to act; the power vehicle can walk by itself, and is convenient for on-site flexible arrangement and transition.
The power vehicle is connected with the underground large-diameter pipe-following drilling machine by adopting a high-pressure hose and is provided with a high-pressure quick connector, so that the power vehicle can be quickly connected with and separated from the underground large-diameter pipe-following drilling machine. All dispose hydraulic filter on each connecting pipe, can avoid the pollution of pipeline in-process fluid, improve equipment reliability.
In the embodiment, the outer tube power head adopts a push-grinding type structure with four motors and driving wheels for driving the large gears, so that large-torque rotation is realized.
The inner tube power head is independently driven by an inner curve motor, and a motor main shaft is of a hollow structure, so that necessary power and signal transmission channels are provided for the hole bottom. Because the double-rotation large-torque power head is adopted, small-volume large-output torque can be realized, and the drilling length and the processing capability of accidents in holes are improved. The outer tube power head adopts a design of a large main shaft through hole, the diameter of the through hole is larger than that of the spiral drilling rod with the maximum diameter, and the multi-stage casing pipe is matched with the multi-stage casing pipe to realize a multi-stage casing pipe and casing pipe drilling process.
The combined feeding device adopts a combined type sectional structure, each section of feeding device is connected by adopting a quick connection structure, the position is determined by using a positioning pin, the short transportation size and the long working stroke are realized, and the power head is ensured to run stably on a guide rail of the feeding device.
The inner tube power head and the outer tube power head are connected through the tool fast, the two power head spindles are fixed relatively, the torque and the feeding pulling force of the two power heads are converged to the outer tube power head spindle or the inner tube power head spindle, the inner tube power head and the outer tube power head are changed into synchronous rotation from independent rotation, the independent feeding pulling force is changed into synchronous feeding pulling force, hole bottom power is increased, and the passing capacity and the accident handling capacity of complex stratum are improved.
The quick hoisting system adopts a middle hoisting mode to reduce the dead rope length of the steel wire rope, reduce the whole height of the hoisting system, facilitate the drilling machine to adjust the height of the opening, be matched with the on-site hoisting system, realize the quick installation of the large-diameter drilling tool and improve the rod replacement efficiency.
The centralizer is radially provided with a plurality of rollers, the rollers are rotatable, the roller rotating shaft is parallel to the main shaft of the power head, the rollers play a role in supporting and centralizing the outer tube, and the main shaft of the rollers can float in the radial direction so as to realize that the diameter of the outer tube is adjustable.
The clamp holder radially arranges a plurality of slips, the slips play a clamping role on the outer pipe, the slips can float in the radial direction, and the clamping diameter of the outer pipe is adjustable.
The large diameter heel tube guided drilling system comprises: the system comprises a pipe following guiding drilling system, a measurement while drilling system and a drilling track deviation correcting system, wherein:
the heel tube guiding drilling system can adopt a primary, secondary or tertiary hole protection mode according to the length of the collapse body and the stratum, and the primary and secondary casings adopt a conventional drilling heel tube drilling process.
The large-diameter casing pipe and the large-diameter spiral drill rod are connected in a quick plug-in mode, the large-diameter casing pipe and the large-diameter spiral drill rod are connected in a quick plug-in mode through a threaded pin, and the large-diameter spiral drill rod is connected in a quick plug-in mode, so that quick assembly and disassembly of a large-diameter drilling tool are guaranteed.
By adopting the gyroscope measurement while drilling system, whether the drilling track is deflected or not can be monitored in real time, and high-efficiency and rapid drilling of the primary and secondary casing pipe and pipe drilling is ensured. The three-stage pipe-following sleeve pipe head is provided with a guide mechanism, and the size of the guide angle can be randomly regulated within a certain angle range through a bias oil cylinder arranged at the three-stage pipe-following sleeve pipe head, so that the quick switching of straightening and correcting operation is realized. The guiding mechanism comprises a large-diameter universal shaft arranged between the connecting cutter head drill bit and the large-diameter spiral drill rod, and can deflect at any angle along with the guiding casing head while transmitting large torque.
The collapse body metal detection and breaking system comprises a collapse body metal component detection system and a metal component breaking system.
The metal detection system comprises an electromagnetic antenna, a data acquisition system and three-dimensional inversion software, wherein:
the electromagnetic antenna can detect abnormal weak signals of metal, the data acquisition system analyzes and processes the metal signals by adopting a focusing electric method, and the distribution positions of the metal components are imaged and displayed by utilizing three-dimensional inversion software.
The focusing electric method is used for carrying out preliminary detection on the distribution range of the collapse body metal component, and detecting parameters such as the approximate distribution position of the metal component, the component scale and the like.
The electromagnetic antenna detection can be used for finely detecting the metal components in the collapse body, and the accurate position and scale of the metal components can be further determined by combining a focusing electric method;
the three-dimensional inversion software can perform three-dimensional inversion on the distribution and specification of the collapse body metal components according to the focusing electric method and the electromagnetic antenna detection data, and provides a basis for breaking and disassembling the metal components.
The metal breaking and dismantling system comprises a hydraulic cutting tool bit, a hydraulic cutting pipeline system, a high-pressure water source system, a sand mixing system and a control system, wherein:
the hydraulic cutting bit is arranged at the front end of the drill bit, the drill bit rotates to drive the cutting bit to rotate, and when the hydraulic cutting bit drills into a metal component, the hydraulic cutting bit can cut the metal component.
The hydraulic cutting pipeline system is a multi-section type quick connecting pipeline and is integrated in a drilling tool, so that the pipeline connection can be quickly completed in the drilling tool connection process, and high-pressure sand mixing water is provided for the hydraulic cutting tool bit on the front end integrated drill bit.
The high-pressure water source system provides a high-pressure water source for the hydraulic cutting head;
the sand mixing system can mix cutting sand in high-pressure water, and cutting sand with different specifications and materials is arranged in the sand mixing system, and can be switched according to the materials and specifications of the metal components so as to improve the cutting efficiency.
The control system can control the flow and pressure of the high-pressure water source, the sand mixing amount and the sand mixing type of the sand mixing system according to the parameters such as the metal detection result, the pipeline connection condition and the like, so that the breaking and dismantling efficiency is improved.
The multifunctional self-moving rescue operation cabin comprises a manned cabin, a front camera, an audio device, an air monitoring device, a wheel type power unit, an electrohydraulic driving device, a stabilizing device, a bundling type high-strength cable, a cable traction device, a remote monitoring platform, a forced ventilation device and a hole bottom breaking and dismantling device, wherein:
the front camera, the audio device and the remote monitoring platform form a manned cabin remote communication system for monitoring personnel states in the cabin in real time; the air monitoring device and the forced ventilation device form a personnel guarantee system in the cabin so that the personnel carrying cabin enters the hole bottom to implement forced ventilation and air monitoring and early warning;
the rear part of the manned cabin is respectively connected with the wheel type power unit and the electrohydraulic driving device in series, the stabilizing device is arranged at the top of the manned cabin, the remote monitoring platform drives the wheel type power unit to pull the manned cabin to independently move through the electrohydraulic driving device, and meanwhile, the friction block of the stabilizing device can be controlled to extend out to prop up the sleeve wall, so that the safety parking of the manned cabin is realized;
The rear part of the manned cabin is connected with a bundling type high-strength cable and a cable traction device to form a manned cabin anti-collision system, the cable traction device is used for dragging the manned cabin through the high-strength cable, the depth and the running speed in a hole of the manned cabin are monitored and controlled through the extending length of the cable, the speed reduction of the manned cabin close to the bottom of the hole is realized, the parking brake at the bottom of the hole is reached, and the personnel casualties caused by the collision of the manned cabin to the bottom of the hole or the punching of a sleeve pipe due to misoperation are prevented.
The rear part of the manned cabin is connected with a high-strength cable and a cable traction device to form a manned cabin anti-collision system, the cable traction device is used for dragging the manned cabin through the high-strength cable, the depth and the running speed in the hole of the manned cabin are monitored and controlled through the extending length of the cable, the speed reduction of the manned cabin near the bottom of the hole is realized, the parking brake at the bottom of the hole is reached, and the personnel casualties caused by the collision of the manned cabin with the bottom of the hole or the flushing of a sleeve pipe caused by misoperation are prevented.
The hole bottom breaking and disassembling device comprises a hydraulic shearing device, a hydraulic core drill, a rock splitting device and a front top assisting gas leg, wherein the hydraulic shearing device is driven by the electrohydraulic driving device to realize hole bottom metal shearing, a quick-disassembly shoulder support is arranged at the rear part of the hydraulic core drill, one end of the front top assisting gas leg is arranged at the rear end of the hydraulic core drill, the other end of the front top assisting gas leg is arranged on a manned cabin mounting seat, auxiliary propulsion is provided for the hydraulic core drill in the rock drilling process, and the hydraulic core drill is used for punching, static pressure splitting of the rock splitting device is realized, so that broken and disassembly of the hole bottom boulder are realized.
The underground large-diameter drilling lifting rescue equipment provided by the embodiment also builds a roadway surrounding rock dangerous identification model in specific application, and builds the roadway surrounding rock dangerous identification model through a method of non-dangerous roadway surrounding rock data, absolute dangerous roadway surrounding rock data, data normalization and membership functions. And a judgment criterion is established through the fuzzy membership rule, so that the dangers in the roadway can be identified according to the dangerous identification model to carry out supporting work, manual intervention is not needed, the safety is high, and personnel and equipment in the roadway are protected in time.
The construction method of the underground large-diameter drilling equipment is carried out in the following manner:
the method comprises the steps that a roadway collapse accident occurs, a large-diameter horizontal rescue drilling hole is constructed by adopting a downhole large-diameter pipe-following drilling machine and a large-diameter pipe-following guide drilling system according to the type and scale of a collapse body, the approximate position and scale of a metal component in the collapse body can be detected by adopting metal advanced detection, and then the metal component is cut into small sizes by adopting a hydraulic cutting mode, so that the metal component is brought out of a hole by a spiral drilling tool;
when drilling is difficult to process hole substrates, a self-moving type multifunctional rescue operation cabin can be adopted to convey rescue personnel to the bottom of the hole, a hole bottom breaking and detaching device is adopted to further break and detach the bottom of the hole manually, the high-efficiency rapid rescue channel construction is carried out by combining the method, a rescue channel is opened for trapped personnel, after the rescue channel is formed, the trapped personnel can be lifted out of the hole by adopting the moving type multifunctional rescue operation cabin, and in the lifting process, a personnel life support system can monitor personnel states and cabin energy environments in real time and provide oxygen and other support for the trapped personnel when needed.
The large-diameter pipe-following drilling machine is in an assembling form of each module, can adapt to different roadway conditions while meeting the requirements of rescue drilling construction, and improves the adaptability of rescue environments. The large-diameter pipe following drilling machine, the guiding drilling system and the metal detection and breaking system are used for efficiently and quickly constructing rescue drilling holes. The pilot drilling selects a drilling construction process according to stratum conditions, and controls a drilling track through a measurement while drilling and track deviation correcting system, so that drilling quality is guaranteed.
The metal detection and breaking system can detect metal components in the collapse body, and can break and break the metal components through the hydraulic cutting tool bit of the tool bit, and for hole bottom materials which are difficult to break and break, the self-moving type multifunctional rescue operation cabin can be adopted to enter the hole bottom, and the tool in the cabin is utilized to assist the breaking and breaking.
The self-moving type multifunctional rescue operation cabin with the life support system is adopted to carry out the rescue operation on trapped people.
Comprises a rescue drilling escape method and a rescue hole bottom obstacle clearance method. Wherein:
the auxiliary obstacle clearing operation at the bottom of the rescue hole comprises the following steps:
step 1: the construction of the rescue hole is blocked, a spiral drilling tool in the sleeve is pulled back, and rock scraps in the sleeve are cleaned by sweeping the hole;
step 2: hoisting the manned cabin into the escape passage, connecting a driving vehicle and a high-strength cable, carrying out no-load operation after the cable is towed, slowly moving to the bottom of the hole, observing the condition in the escape passage in the whole course by a front camera in the self-moving multifunctional rescue operation cabin, and carrying out monitoring and early warning on air in the escape passage;
Step 3: after the manned cabin reaches the hole bottom, the fault condition of the hole bottom is probed through a remote video system, and a manual hole bottom obstacle clearing scheme is formulated;
step 4: opening an air pipeline paved along with the manned cabin, carrying out forced ventilation on the hole bottom by using a ventilation system, monitoring and early warning on the air condition of the hole bottom, forcibly stopping the ventilation system for a period of time after the air condition of the hole bottom is normal, and continuously monitoring the air condition;
step 5: after the safe operation of the manned cabin and the normal air condition at the bottom of the hole are confirmed, the manned cabin is pulled back to the hole opening by the traction device through the high-strength cable, rescue workers carry hydraulic scissors to enter the manned cabin to the bottom of the hole according to the hole bottom obstacle clearing scheme, the stabilizing device is started to finish parking braking, and forced ventilation is started;
step 6: the hydraulic shear is used for shearing an anchor rod and an anchor rope, the hydraulic rock core drill and the hydraulic splitter are combined for static pressure rock breaking, the boulder breaking and the removing are completed, and the passenger cabin returns to the ground after the obstacle clearing operation is completed;
the rescue drilling escape operation comprises the following steps of:
step 1: after the rescue hole is communicated, the spiral drilling tool in the sleeve is pulled back, and the sweeping hole cleans rock debris in the pipeline to form an escape channel;
step 2: hoisting the manned cabin into the escape passage, connecting a driving vehicle, a high-strength cable and a cable traction device, carrying out no-load operation, slowly moving to the bottom of a hole, observing the condition in the passage in the whole course through a front camera in the cabin, and carrying out monitoring and early warning on air in the passage;
Step 3: after confirming that the manned cabin runs safely, the manned cabin is pulled back to the hole opening by the traction device through the high-strength cable, rescue workers enter the manned cabin to reach the bottom of the hole, the stabilizing device is started to finish parking braking of the manned cabin, and the personnel enter a trapped area to assist the trapped personnel to enter the manned cabin;
step 4: closing the stabilizing device, and dragging the manned cabin by the dragging device to slowly return and fully monitor the personnel state in the manned cabin.
Step 5: the manned cabin is operated to the orifice, the stabilizing device is started, parking braking of the manned cabin is completed, the rescue workers assist trapped people to exit the manned cabin, and escape of the people is completed.
The following is a specific implementation procedure given by the inventors:
FIG. 1 shows a large-diameter pipe-following drilling machine structure diagram, which comprises a double-rotation large-torque power head 1, a combined feeding device 2, a quick hoisting system 3, a clamping and righting system 4, a supporting system 5, a crawler body 6 and a power vehicle 7; in the installation process, the double-rotation large-torque power head 1, the combined feeding device 2, the quick hoisting system 3, the clamping and righting system 4 and the supporting system 5 are all installed on the crawler body 6, and the power vehicle 7 is placed at the rear end or one side of the large-diameter pipe-following drilling machine to provide power for the large-diameter pipe-following drilling machine.
The double-rotation large-torque power head 1 is positioned in the combined feeding device 2, the double-rotation large-torque power head 1 drives the drilling tool to rotate respectively, the combined feeding device 2 can provide feeding force for two rotary heads of the double-rotation large-torque power head 1, and under the combined action of rotary cutting and feeding force, the breaking and deslagging of rock at the bottom of a hole are realized, and the drilling construction is realized.
The quick hoisting system 3 is hinged with the crawler body 6, and is realized through an oil cylinder, the height of the quick hoisting system 3 is adjusted so as to adapt to different roadway conditions, and the quick hoisting system 3 can assist in hoisting a drilling tool.
The support system 5 is installed on the lower end surface of the combined feeding device 2 to realize support.
Referring to fig. 2, in the double-rotation large-torque power head 1, an outer tube power head 11 is driven by 4 driving motors 15, and the driving motors 15 are mounted on the end face of a case; the inner tube power head has 1 hollow motor drive, and the hollow motor 16 is installed on the box terminal surface. The inner spiral drill rod 13 is connected with the main shaft of the inner pipe power head 12 in a plugging manner, and the outer sleeve 14 is connected with the main shaft of the outer sleeve in a plugging manner. When the conditions of hole bottom clamping stagnation and the like occur, a power head connector 17 is arranged on a main shaft of the inner pipe power head, the large-diameter end of the power head connector 17 is of a spline or flange structure and is connected with an inner hole of the main shaft of the outer pipe power head 11 to transmit torque.
Fig. 3 is a schematic structural diagram of a combined feeding device 2, in which a first feeding body 21 and a second feeding body 22 are connected by bolts or a buckling mode, and different numbers of feeding bodies can be connected according to requirements, so that different feeding strokes are realized, and roadway conditions with different sizes are adapted.
The cylinder rod end of the inner pipe feeding cylinder is arranged on the clamping and centering system 4, the cylinder barrel end is arranged on the inner pipe power head 12, the cylinder rod end of the outer pipe feeding cylinder is arranged on the clamping and centering system 4, and the cylinder barrel end is arranged on the outer pipe power head 11. The cylinder barrel of the inner pipe feeding cylinder passes through the box body of the outer pipe power head 11. The inner pipe feeding oil cylinder and the outer pipe feeding oil cylinder stretch to realize the respective feeding and pulling of the two power heads.
Fig. 4 and 5 show the installation position and structure of the hoisting system, the folding arm 31 is hinged on the crawler chassis, one end of the folding cylinder 32 is hinged on the crawler chassis, and the other end is hinged on the folding arm 31, and the retraction and the erection of the folding arm 31 can be realized by the telescopic cylinder, so that the transportation of a low roadway is satisfied.
The lifting arm 39 is of a hollow structure, the lifting winch 33 is arranged at the end part of the lifting arm 39, the large pulley 35 and the small pulley 38 are arranged inside the lifting arm 39, the first phase-changing pulley 310 and the second phase-changing pulley 311 are arranged inside the lifting arm, and the small pulleys 38 are symmetrically arranged in 2.
The hoisting steel wire rope is wound in a way that the rope is discharged from the hoisting winch 33, passes through the large pulley 35 and the small pulley 38, is decomposed into two steel wire ropes at the lower part of the small pulley 38, and respectively bypasses the first phase-changing pulley 310 and the second phase-changing pulley 311, and then the two ends of the two steel wire ropes are respectively connected with the first lifting hook 36 and the second lifting hook 37.
The hoisting steel wire rope drives the expansion and contraction through the hoisting winch 33, so that the synchronous lowering and recovery of the first lifting hook 36 and the second lifting hook 37 are realized. The first lifting hook 36 and the second lifting hook 37 respectively lift the two ends of the drilling tool, so that the drilling tool can be lifted stably. In theory, the minimum of the first lifting hook 36 and the second lifting hook 37 is 0, so that the dead rope length of hoisting is greatly reduced, the overall height of the hoisting system is reduced, the drilling machine is convenient to adjust the height of the opening, the drilling machine is matched with the on-site hoisting system, the rapid installation of a large-diameter drilling tool can be realized, and the rod replacing efficiency is improved.
Wherein, protection anchor net 34 is installed in the upper portion of folding arm 31, and folding arm 31 is standing up the back, pushes up on tunnel or the tunnel roof through inside hydro-cylinder, stabilizes protection anchor net 34 simultaneously, realizes equipment and personnel's protection in the certain protection.
Referring to fig. 6-9, a multi-stage casing drilling installation schematic is shown, which includes a primary casing 202, a secondary casing 206, a tertiary casing 209, a primary auger 201, a secondary auger 205, a tertiary auger 208, a gyroscope measurement while drilling system 203, a primary cutterhead 204, a secondary cutterhead 207, a tertiary cutterhead 210, an adjustable guide 213, and a large diameter cardan shaft 212.
Fig. 6 is a schematic diagram of a primary drilling construction drilling assembly, which includes a primary casing pipe 201, a primary auger stem 202, a gyroscope measurement while drilling system 203, and a primary cutterhead 204, forming a primary casing drilling system.
The inner pipe power head of the pipe following drilling machine drives the primary spiral drill rod 203 to rotate, the outer pipe power head of the pipe following drilling machine drives the primary pipe following pipe 201, the primary spiral drill rod 202 rotates to drive the primary cutter head 204 to rotationally cut crushed rock, and the primary spiral drill rod 202 brings rock scraps out of a drilled hole under the relative movement of the primary pipe following pipe 201 and the primary spiral drill rod 202.
Fig. 7 is a schematic diagram of a secondary casing drilling system, comprising a secondary casing 206, a secondary auger 205, a gyroscope measurement while drilling system 203, and a secondary cutterhead 207.
When the primary drilling construction encounters the conditions of hole collapse, overlarge outer pipe load and the like, secondary pipe-following drilling can be adopted, the primary pipe-following pipe 202 protects holes, a secondary pipe-following sleeve 206, a secondary spiral drill rod 205, a gyroscope measurement-while-drilling system 203 and a secondary cutter 207 are arranged in the primary pipe-following pipe 202. The inner pipe power head of the pipe following drill drives the second-stage spiral drill rod 205 to rotate, the outer pipe power head of the pipe following drill drives the second-stage pipe following sleeve 206, the second-stage spiral drill rod 205 rotates to drive the second-stage cutter head 207 to rotationally cut broken rock, and under the relative movement of the second-stage pipe following sleeve 206 and the second-stage spiral drill rod 205, the second-stage spiral drill rod 205 brings rock fragments out of a drilled hole.
Fig. 8 and 9 illustrate three-stage heel tube pilot drilling, comprising three-stage heel tube sleeve 209, adjustable pilot head 213, three-stage auger 208, large diameter cardan shaft 212, gyroscope measurement while drilling system 203, three-stage cutterhead 210.
And the primary, secondary and tertiary casing drilling systems are respectively or simultaneously selected according to the length of the collapse body during underground construction. When the length of the preferable collapse body is less than or equal to 20m, a first-stage casing drilling system is selected for construction; preferably, when the length of the collapse body is more than 20m and less than or equal to 40m, a primary and secondary pipe-following drilling system is selected for construction; preferably, when the length of the collapse body is more than 40m, a primary, secondary and tertiary casing drilling system is selected for construction.
The diameter of the tertiary cutterhead is smaller than the inner diameter of the secondary pipe-in-pipe sleeve and larger than the outer diameter of the tertiary pipe-in-pipe sleeve. The diameter of the second-stage cutterhead is smaller than the inner diameter of the first-stage pipe-in-pipe sleeve and larger than the outer diameter of the second-stage pipe-in-pipe sleeve. The diameter of the primary cutterhead is larger than the outer diameter of the primary pipe-in-pipe sleeve.
The gyroscope measurement while drilling probe is arranged in the inner diameter of the large-diameter spiral drill rod and is close to the cutter head.
The primary cutterhead and the secondary cutterhead are in threaded connection with the large-diameter spiral drill rod, and the tertiary cutterhead is in threaded connection with the large-diameter spiral drill rod through a large-diameter universal shaft.
The adjustable guide head is arranged between the tertiary cutterhead and the tertiary pipe-in-pipe, is connected with the tertiary pipe-in-pipe through a hinge and a telescopic guide oil cylinder, and is coaxial with the tertiary pipe-in-pipe when the oil cylinder is completely retracted, and the large-diameter pipe-in-pipe guide drilling system is in a horizontal straight-keeping drilling mode; when the oil cylinder is completely extended, the adjustable guide head and the three-stage pipe-in-pipe sleeve form a maximum bent angle beta, and the large-diameter pipe-in-pipe guide drilling system is in a full-force deflecting mode. During the actual deflecting construction, the bending angle between the adjustable guide head and the three-stage pipe-in-pipe sleeve is adjusted between (0 and beta) at will along with the expansion force of the guide oil cylinder.
Wherein, the primary, the secondary and the tertiary pipe-in-pipe are respectively connected by quick insertion of a threaded pin, and a spline is arranged on the outer wall of the male head of the sleeve and matched with a key slot arranged on the end head of the female head of the sleeve, so that quick insertion is realized. After the plugging is completed, threaded holes on the male sleeve and the female sleeve are in one-to-one correspondence, and the male sleeve and the female sleeve can be quickly fixed through threaded pins.
Fig. 10 is a schematic view of the arrangement of focusing electrotechnical electrodes/antenna rows on the knife head. And (3) arranging electrodes/antennas in the rescue holes, observing response data of the metal abnormal body under the full-space condition, performing three-dimensional inversion on the observed data under the full-space condition respectively by using uniform model constraint and high-resistance coal seam constraint (see fig. 11 and 12), and analyzing shielding effect of the high-resistance coal seam on abnormal detection response.
Fig. 13 is a block diagram of a metal breaking system, which comprises a hydraulic cutting head 301, a hydraulic cutting pipeline system 302, a high-pressure water source system 303, a sand mixing system 304 and a control system 305.
The hydraulic cutting bit 301 is arranged at the front end of the drill bit, the drill bit rotates to drive the water jet cutting bit to rotate, preferably, two bits are respectively arranged at the extension and the center of the drill bit, when the drill bit meets a metal component, the hydraulic cutting bit can cut the metal component, and the cutting size is suitable for spiral exclusion.
The hydraulic cutting pipeline system 302 is a multi-section quick connection pipeline and is integrated with a drilling tool, so that pipeline connection can be quickly completed in the drilling tool connection process, and high-pressure sand mixing water is provided for the hydraulic cutting tool bit on the front end integrated with the drill bit.
The quick connect piping system 302 is provided with connection lines for powering the downhole metal detection equipment and as signal transmission lines.
The high-pressure water source system 303 provides a high-pressure water source for the hydraulic cutting tool bit 301, the sand mixing system 304 can mix cutting sand in the high-pressure water, cutting sand with different specifications and materials is configured in the sand mixing system, and the cutting sand can be switched according to the materials and specifications of the metal components, so that the cutting efficiency is improved.
Fig. 14 is a system diagram of a self-moving type multifunctional rescue operation cabin, which comprises an air monitoring device 401, a front camera 402, a stabilizing device 403, an electrohydraulic driving device 404, a remote monitoring platform 405, an audio device 406, a hole bottom dismounting device 407, a manned cabin 408, a wheel type power unit 409, a clustered high-strength cable 410, a cable traction device 411 and a forced ventilation device 412.
Fig. 15 is a schematic cross-sectional view of a bundled high strength cable, comprising a power cable 4101, a wire rope 4102, a signal line 4103, a vent pipe 4104, and a wear-resistant flame-retardant antistatic housing 4105.
Fig. 16 is a partial assembly of a hole bottom breaking device, comprising a hydraulic core drill 4071, a quick release shoulder rest 4072, and a front top booster air leg 4073.
It should be noted that the above embodiments are merely preferred examples, and the present invention is not limited to the above embodiments, and those skilled in the art may add technical features to the technical solution of the present application or simply replace the technical features without performing creative work, which all fall within the scope of the claims of the present application.
Claims (10)
1. The utility model provides a major diameter drilling equipment in pit, its characterized in that includes major diameter and pipe rig, major diameter and pipe direction drilling system, collapse body metal detection and broken system of tearing open, from multi-functional rescue operation cabin of moving, wherein:
the large-diameter pipe following drilling machine is used for constructing a large-diameter horizontal hole and is used as a rescue channel;
the large-diameter pipe-following guide drilling system comprises a gyroscope measurement-while-drilling system and a drilling track deviation correcting system, and is used for adopting a primary, secondary or tertiary hole protection mode according to the length of a collapse body and a stratum, wherein:
The gyroscope measurement while drilling system is used for monitoring whether the drilling track is deflected in real time so as to ensure that the primary and secondary casing pipe and casing pipe drilling is efficient and quick in drilling;
the drilling track deviation correcting system is used for correcting the deviation of a drilling track in real time when the drilling track is deviated, a guide mechanism is arranged at the position of a three-stage sleeve pipe head, and the size of a guide angle in the guide mechanism is randomly adjusted within a certain angle range through a bias oil cylinder arranged at the position of the three-stage sleeve pipe head, so that the switching of the straightening and deviation correcting operation is realized;
the guide mechanism comprises a large-diameter universal shaft which is arranged between a cutter head drill bit and a large-diameter spiral drill rod, and can deflect at any angle along with a guide casing head while transmitting large torque;
the collapse body metal detection and collapse body breaking system mainly comprises a metal detection system and a collapse body metal breaking system; wherein:
the metal detection system comprises an electromagnetic antenna, a data acquisition system and three-dimensional inversion software, and is used for finely detecting metal components in a collapse body and determining the accurate azimuth and scale of the metal components;
the electromagnetic antenna detects metal signals, the data acquisition system analyzes and processes the metal signals by adopting a focusing electric method, the accurate azimuth and scale of the metal components are determined, and the three-dimensional inversion software images and displays the distribution positions of the collapse body metal components according to the focusing electric method and the electromagnetic antenna detection data, so that a basis is provided for breaking and dismantling the metal components;
The collapse body metal breaking and dismantling system is used for realizing rapid cutting of metal components and mainly comprises a hydraulic cutting tool bit, a hydraulic cutting pipeline system, a high-pressure water source system, a sand mixing system and a control system, wherein:
the hydraulic cutting tool bit is arranged at the front end of the drill bit, the drill bit rotates to drive the hydraulic cutting tool bit to rotate, and when the drill bit meets a metal component, the hydraulic cutting tool bit realizes cutting of the metal component;
the hydraulic cutting pipeline system is a multi-section quick connecting pipeline and is used for providing high-pressure sand mixing water for the hydraulic cutting tool bit;
the high-pressure water source system provides a high-pressure water source for the hydraulic cutting system;
the sand mixing system can mix cutting sand in high-pressure water, and cutting sand with different specifications and materials is arranged in the sand mixing system, so that the cutting sand can be switched according to the materials and specifications of the metal components;
the control system controls the flow and pressure of the high-pressure water source, the sand mixing amount and the sand mixing type of the sand mixing system according to the metal detection result and the pipeline connection condition parameters;
the self-moving type multifunctional rescue operation cabin is used for guaranteeing safe lifting of personnel in the manned cabin and is used as a rescue hole bottom for assisting obstacle clearance.
2. The downhole large diameter drilling apparatus of claim 1, wherein the large diameter casing drilling machine comprises a dual-turn large torque power head, a combined feeder, a quick hoist system, a clamp centralizer system, a support system, an electrohydraulic dual-control remote control system, a crawler body, and a power car; wherein:
The double-rotation large-torque power head is used for realizing small-volume large-output torque and improving the drilling length and the processing capability of accidents in holes, wherein the double-rotation large-torque power head and the clamping and centering system are positioned on an upper guide surface of the combined feeding device, the lower part of the quick hoisting system is hinged with a chassis of the crawler body, and the supporting system is positioned on the lower end surface of the combined feeding device;
the double-rotation high-torque power head is provided with an inner pipe power head and an outer pipe power head, wherein the outer pipe power head is driven by 4 driving motors, and the 4 driving motors are all arranged on the end face of the box body; the inner tube power head is driven by 1 hollow motor, and the hollow motor is arranged on the end face of the box body; the main shaft of the inner pipe power head is connected with a hexagonal prism-shaped inner spiral drill rod and a front end cutter head in a quick plug-in mode, is connected with the main shaft of the inner pipe power head in a quick plug-in mode, and the outer sleeve is connected with the main shaft of the outer sleeve in a quick plug-in mode; the inner pipe power head drives the spiral drill rod and the front end cutter head, the outer pipe power head drives the outer sleeve, the inner pipe power head and the outer pipe power head adopt independent bidirectional rotation, so that the inner pipe power head can quickly cut a collapse body, the outer pipe power head can reduce drag and follow up, and the inner pipe power head and the outer pipe power head are matched to quickly remove slag;
The combined feeding device is characterized in that two groups of feeding oil cylinders respectively drive an inner pipe power head and an outer pipe power head, wherein the end of each inner pipe feeding oil cylinder is arranged on a clamping centralizer, the end of each cylinder is arranged on the inner pipe power head, the end of each outer pipe feeding oil cylinder is arranged on the clamping centralizer, and the end of each cylinder is arranged on the outer pipe power head; the cylinder barrel of the inner pipe feeding cylinder penetrates through the box body of the outer pipe power head, the inner pipe feeding cylinder and the outer pipe feeding cylinder stretch to realize independent feeding and pulling-up of the two power heads, the spiral drill rod and the front end cutter head are convenient to be detached, and the excess amount of the inner pipe is adjusted;
the rapid hoisting system is of a folding portal frame structure and is used for realizing low transport height of the drilling machine, the upper supporting leg can support a roadway top plate, and the rapid hoisting system is stable; in the working state of the quick hoisting system, the protection anchor net is arranged on the upper part of the folding arm, and after the folding arm stands up, the protection anchor net is propped against a tunnel or a tunnel roof through an internal oil cylinder and is stabilized;
the clamping and centering system comprises a clamp and a centering device, wherein the clamp is used for assisting in clamping a drilling tool so as to quickly connect an outer pipe; the centralizer has the advantages that the centralizer has a centralizing effect on the spiral drill rod and the front end cutter head in the drilling process, the spiral drill rod and the front end cutter head are prevented from deflecting, the diameter of each clamp holder and the diameter of each centralizer can be changed, and the clamp holder and the centralizer are matched to realize a multi-stage pipe-following drilling process;
The supporting system comprises four parts, namely a chassis support, a front support, a rear support, a top plate support and a side support, and is used for providing reaction force for feeding and pulling up the inner pipe and the outer pipe, wherein:
the chassis support consists of four hydraulic support legs to realize the monitoring and adjustment of the gesture, the front and rear supports realize the stability of maintaining the drilling state of the drilling machine, the top plate support is provided by the upper support legs of the quick hoisting system, and the side supports ensure the stability of the narrow rescue drilling machine;
the electrohydraulic double-control remote control system comprises a near-end control system and a far-end control system of the underground large-diameter pipe-following drilling machine, wherein the near-end control system adopts hydraulic control, the far-end control system adopts electric remote control to realize integrated centralized control of a drilling site, and drillers can master the condition of the drilling site in all directions;
the power vehicle is positioned at the rear end or one side of the underground large-diameter pipe-following drilling machine and provides power for the underground large-diameter pipe-following drilling machine.
3. The apparatus of claim 1, wherein the power vehicle provides a high pressure oil source for the large diameter pipe-following drill to drive the actuator, the power vehicle is independently operable, and the power vehicle is connected to the large diameter pipe-following drill by a high pressure hose and is provided with a high pressure quick connector, and the high pressure hose connecting lines are each provided with a hydraulic filter.
4. The downhole large diameter drilling apparatus of claim 2, wherein the outer tube power head adopts a push-mill type structure with four motors with driving wheels driving large gears to realize large torque rotation; the inner tube power head is independently driven by an inner curve motor, and a motor main shaft is of a hollow structure, so that necessary power and signal transmission channels are provided for the hole bottom.
5. The downhole large diameter drilling apparatus of claim 4 wherein the outer tube power head is of a large spindle through bore design with a diameter greater than the diameter of the largest diameter auger for a multi-stage casing-with-casing drilling process.
6. The underground large-diameter drilling equipment as claimed in claim 2, wherein the combined feeding device of the pipe-following drill adopts a combined segmented structure, and each feeding machine body is connected by a bolt or a buckling mode and is positioned by a positioning pin;
when the underground large-diameter pipe-following drilling machine has the condition of hole bottom clamping stagnation, a power head connector is arranged on a main shaft of an inner pipe power head, the large-diameter end of the power head connector is of a spline or flange structure and is connected with an inner hole of the main shaft of an outer pipe power head, and the torque and the feeding pulling force of the two power heads are converged to the main shaft of the outer pipe power head or the main shaft of the inner pipe power head, so that the inner pipe power head and the outer pipe power head are changed into synchronous rotation from independent rotation and are changed into synchronous feeding pulling from independent feeding pulling;
The hoisting arm of the quick hoisting system is of a hollow structure, the hoisting winch is arranged at the end part of the hoisting arm, the phase-change pulley, the large pulley and the small pulley are all arranged inside the hoisting arm, the hoisting wire rope is wound in a mode that the rope is discharged from the hoisting winch, passes through the large pulley and the small pulley and is decomposed into two wire ropes at the lower part of the small pulley, and the two wire ropes are respectively connected with lifting hooks at the two ends after respectively bypassing the phase-change pulley; the hoisting steel wire rope drives the telescopic rope to synchronously lower and recover the lifting hook through the hoisting winch;
the clamping system is provided with a plurality of rotatable rollers in the radial direction, the rotating shafts of the rollers are parallel to the main shaft of the power head, the rollers play a role in supporting and righting the outer tube, and the main shaft of the rollers can float in the radial direction so as to realize that the diameter of the outer tube is adjustable; the clamp holder is radially provided with a plurality of slips, the slips play a role in clamping the outer pipe, the slips can float in the radial direction, and the clamping diameter of the outer pipe is adjustable.
7. The downhole large diameter drilling apparatus of claim 2, wherein the self-moving multi-functional rescue operation cabin comprises a manned cabin, a front camera, an audio device, an air monitoring device, a wheel type power unit, an electrohydraulic driving device, a stabilizing device, a clustered high strength cable, a cable traction device, a remote monitoring station, a forced ventilation device, a hole bottom breaking device, wherein:
The front camera, the audio device and the remote monitoring platform form a manned cabin remote communication system for monitoring personnel states in the cabin in real time; the air monitoring device and the forced ventilation device form a personnel guarantee system in the cabin so that the personnel carrying cabin enters the hole bottom to implement forced ventilation and air monitoring and early warning;
the rear part of the manned cabin is respectively connected with the wheel type power unit and the electrohydraulic driving device in series, the stabilizing device is arranged at the top of the manned cabin, the remote monitoring platform drives the wheel type power unit to pull the manned cabin to independently move through the electrohydraulic driving device, and meanwhile, the friction block of the stabilizing device can be controlled to extend out to prop up the sleeve wall, so that the safety parking of the manned cabin is realized;
the rear part of the manned cabin is connected with a bundling type high-strength cable and a cable traction device to form a manned cabin anti-collision system, the cable traction device is used for dragging the manned cabin through the high-strength cable, the depth and the running speed in a hole of the manned cabin are monitored and controlled through the extending length of the cable, the speed reduction of the manned cabin close to the bottom of the hole is realized, the parking brake at the bottom of the hole is reached, and the personnel casualties caused by the collision of the manned cabin to the bottom of the hole or the punching of a sleeve pipe due to misoperation are prevented.
8. The downhole large diameter borehole lifting rescue apparatus as recited in claim 7 wherein said bundled high strength cable is cast from a power cable, a wire rope, a signal wire, a vent pipe, and a wear resistant flame retardant antistatic housing; the ventilating pipes are arranged in the middle, the power cables and the signal wires are symmetrically arranged around the ventilating pipes at intervals, supports are formed outside the ventilating pipes, compression deformation of the ventilating pipes is avoided, and the wear-resistant flame-retardant antistatic shell is located outside the clustered high-strength cables.
9. The underground large-diameter drilling lifting rescue device according to claim 7, wherein the hole bottom breaking and disassembling device comprises a hydraulic shearing device, a hydraulic core drill, a rock splitting device and a front top assisting air leg, the hydraulic shearing device is driven by the electrohydraulic driving device to shear metal at the hole bottom, a quick-dismantling shoulder support is arranged at the rear part of the hydraulic core drill, one end of the front top assisting air leg is arranged at the rear end of the hydraulic core drill, the other end of the front top assisting air leg is arranged on a mounting seat in a manned cabin, auxiliary propulsion is provided for the hydraulic core drill in the rock drilling process, and the hole bottom is broken and disassembled by static pressure of the rock splitting device through drilling of the hydraulic core drill.
10. Method for the construction of a downhole large diameter drilling apparatus according to one of the claims 1 to 9, characterized in that it is carried out in particular in the following manner:
according to the type and scale of the collapse body, constructing a large-diameter horizontal rescue borehole by using underground large-diameter drilling equipment, detecting the approximate position and scale of a metal component in the collapse body by adopting metal advanced detection, and then cutting the metal component into small sizes by using a hydraulic cutting mode;
when a hole substrate is difficult to process during drilling, a self-moving type multifunctional rescue operation cabin is utilized to implement rescue hole bottom auxiliary obstacle clearing operation, so that a rescue channel is opened for trapped people;
After the rescue channel is formed, carrying out rescue drilling escape operation by utilizing the self-moving type multifunctional rescue operation cabin, and lifting trapped personnel out of the hole;
the rescue hole bottom auxiliary obstacle clearance operation comprises the following steps of:
step 1: the construction of the rescue hole is blocked, a spiral drilling tool in the sleeve is pulled back, and rock scraps in the sleeve are cleaned by sweeping the hole;
step 2: hoisting the manned cabin into the escape passage, connecting a driving vehicle and a high-strength cable, carrying out no-load operation after the cable is towed, slowly moving to the bottom of the hole, observing the condition in the escape passage in the whole course by a front camera in the self-moving multifunctional rescue operation cabin, and carrying out monitoring and early warning on air in the escape passage;
step 3: after the manned cabin reaches the hole bottom, the fault condition of the hole bottom is probed through a remote video system, and a manual hole bottom obstacle clearing scheme is formulated;
step 4: opening an air pipeline paved along with the manned cabin, carrying out forced ventilation on the hole bottom by using a ventilation system, monitoring and early warning on the air condition of the hole bottom, forcibly stopping the ventilation system for a period of time after the air condition of the hole bottom is normal, and continuously monitoring the air condition;
step 5: after the safe operation of the manned cabin and the normal air condition at the bottom of the hole are confirmed, the manned cabin is pulled back to the hole opening by the traction device through the high-strength cable, rescue workers carry hydraulic scissors to enter the manned cabin to the bottom of the hole according to the hole bottom obstacle clearing scheme, the stabilizing device is started to finish parking braking, and forced ventilation is started;
Step 6: the hydraulic shear is used for shearing an anchor rod and an anchor rope, the hydraulic rock core drill and the hydraulic splitter are combined for static pressure rock breaking, the boulder breaking and the removing are completed, and the passenger cabin returns to the ground after the obstacle clearing operation is completed;
the rescue drilling escape operation comprises the following steps of:
step 1: after the rescue hole is communicated, the spiral drilling tool in the sleeve is pulled back, and the sweeping hole cleans rock debris in the pipeline to form an escape channel;
step 2: hoisting the manned cabin into the escape passage, connecting a driving vehicle, a high-strength cable and a cable traction device, carrying out no-load operation, slowly moving to the bottom of a hole, observing the condition in the passage in the whole course through a front camera in the manned cabin, and carrying out monitoring and early warning on air in the passage;
step 3: after confirming that the manned cabin runs safely, the manned cabin is pulled back to the hole opening by the traction device through the high-strength cable, rescue workers enter the manned cabin to reach the bottom of the hole, the stabilizing device is started to finish parking braking of the manned cabin, and the personnel enter a trapped area to assist the trapped personnel to enter the manned cabin;
step 4: closing the stabilizing device, and dragging the manned cabin by the dragging device to slowly return and fully monitoring the personnel state in the manned cabin;
step 5: the manned cabin is operated to the orifice, the stabilizing device is started, parking braking of the manned cabin is completed, the rescue workers assist trapped people to exit the manned cabin, and escape of the people is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202311013255.7A CN117307036A (en) | 2023-08-11 | 2023-08-11 | Underground large-diameter drilling equipment and construction method |
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| CN202311013255.7A CN117307036A (en) | 2023-08-11 | 2023-08-11 | Underground large-diameter drilling equipment and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117759323A (en) * | 2024-02-22 | 2024-03-26 | 泰兴市华诚机电制造有限公司 | tunnel construction safety guarantee cabin environment monitoring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117759323A (en) * | 2024-02-22 | 2024-03-26 | 泰兴市华诚机电制造有限公司 | tunnel construction safety guarantee cabin environment monitoring device |
| CN117759323B (en) * | 2024-02-22 | 2024-04-26 | 泰兴市华诚机电制造有限公司 | Tunnel construction safety guarantee cabin environment monitoring device |
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