CN116427944A - Double-guide rapid tunneling, supporting and anchoring construction method for coal mine tunnel - Google Patents
Double-guide rapid tunneling, supporting and anchoring construction method for coal mine tunnel Download PDFInfo
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- CN116427944A CN116427944A CN202310474336.0A CN202310474336A CN116427944A CN 116427944 A CN116427944 A CN 116427944A CN 202310474336 A CN202310474336 A CN 202310474336A CN 116427944 A CN116427944 A CN 116427944A
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- 238000004873 anchoring Methods 0.000 title claims abstract description 59
- 230000005641 tunneling Effects 0.000 title claims abstract description 43
- 239000003245 coal Substances 0.000 title claims abstract description 36
- 238000010276 construction Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000008569 process Effects 0.000 claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims description 66
- 230000007246 mechanism Effects 0.000 claims description 30
- 238000012546 transfer Methods 0.000 claims description 5
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000005065 mining Methods 0.000 description 14
- 239000000428 dust Substances 0.000 description 8
- 239000003638 chemical reducing agent Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000005553 drilling Methods 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0621—Shield advancing devices
Abstract
The invention relates to a double-guide rapid tunneling, supporting and anchoring construction method for a coal mine tunnel, which is used for implementing tunneling operation on the basis of equipment of a tunneling, supporting and anchoring system, sequentially and stepwise realizing the movement of a shield system, a self-guide propulsion system and a gantry type equipment platform by a self-guide propulsion system in the process, correcting deviation in real time according to the advancing condition and tunnel environment during advancing, and has strong environment adaptability, so that the technical problems of easy sinking and slow walking of a crawler caused by the crawler type walking mode of the existing underground tunneling equipment can be solved, and the moving speed and tunneling efficiency of the system can be improved.
Description
Technical Field
The invention relates to the technical field of coal mine tunneling equipment, in particular to a double-guide rapid tunneling, supporting and anchoring construction method for a coal mine tunnel.
Background
Before underground coal mining operation of a coal mine, a return air roadway/a transportation roadway/a gas roadway/a connecting roadway/an installation roadway and the like are generally required to be tunneled on two sides of a working face to be mined in advance, and the hydraulic system is used for transportation of coal to be mined, transportation of related comprehensive mining equipment, ventilation drainage and the like. However, compared with the development stage of fully-mechanized coal mining complete equipment in China, the development level of the tunneling equipment is obviously lagged, the efficiency is lower, the mining contradiction in the coal mining process is increasingly outstanding, and the further high-quality development of the coal industry is restricted. At present, the underground tunneling equipment generally adopts a crawler-type walking mode, the crawler is short in length and width, the ground area is small, the specific pressure to the ground is large, the roadway bottom plate is easy to crush, the bottom plate is damaged, the adaptability is poor, once the crawler is poor in bottom sinking and escaping capability, the equipment operation is stopped, and the production efficiency is influenced; no matter the crawler belt adopts an electric or hydraulic driving mode, the left crawler belt and the right crawler belt cannot keep synchronous in the walking process, so that the crawler belt is required to be guided by a gyroscope to continuously rectify deviation in the walking process, the walking is slow, and the production efficiency is difficult to promote.
Disclosure of Invention
The invention aims to provide a double-guide rapid tunneling, supporting and anchoring construction method for a coal mine tunnel, which can solve the technical problems of easy sinking and slow walking of a crawler caused by a crawler type walking mode of underground tunneling equipment at present.
The invention provides the following technical scheme: a double-guide rapid tunneling, supporting and anchoring construction method for a coal mine roadway comprises the following steps:
s1: the position of the tunneling, supporting and anchoring system in the tunnel is adjusted through the self-guiding propulsion system, the front deviation adjusting mechanism and the rear deviation adjusting mechanism, the shield system is lifted, and the upper shield body is contacted with the tunnel roof and applies prestress; the cutting lifting cylinder is operated to drive the cutting roller to cut coal up and down, the cutting cylinder pushes the large arm sliding seat and the cutting large arm to slide forwards, a step distance is cut forwards, the operation advance cylinder controls the advance support structure to extend out in the forward pushing process of the cutting roller, the empty top distance is reduced, and the cut coal blocks are sequentially conveyed backwards through the loading system, the scraper conveyor, the bridge type transfer conveyor and the adhesive tape conveyor;
s2: after the cutting is completed, the cutting system and the advanced support structure are retracted, the self-guiding propulsion system is regulated, the propping device is lifted to enable the propping device to be in full contact with the roadway top plate, the bottom sliding shoes are extended to ensure that the bottom sliding shoes are in full contact with the roadway bottom plate, the side supporting shoes are extended to tightly support the two side plates, and the self-guiding propulsion system is taken as a fulcrum to drive the front propulsion oil cylinder to enable the shield system to be propelled forwards together with the cutting system and the loading system;
s3: retracting the top support device, the bottom sliding shoes and the lateral support shoes of the self-guiding propulsion system, and retracting the front propulsion cylinder so as to enable the self-guiding propulsion system to slide forwards;
s4: the top supporting device, the bottom sliding shoes and the lateral supporting shoes extend out of the self-guiding propulsion system, so that the top supporting device contacts and tightly props against a roadway top plate, the bottom sliding shoes fully contact with a bottom plate, the lateral sliding shoes tightly support two side plates, and the self-guiding propulsion system is taken as a fulcrum to drive a rear propulsion cylinder to enable a rear gantry type equipment platform to move forwards;
s5: repeating the steps S1-S4, and realizing the rapid tunneling of the tunnel.
Further, in the processes of forward movement of the shield system, forward movement of the self-guiding propulsion system and forward movement of the gantry type equipment platform, the positions of the tunneling, supporting and anchoring systems relative to the roadway are adjusted through the self-guiding propulsion system, the front deviation adjusting mechanism and the rear deviation adjusting mechanism.
Further, in the process of cutting operation of the S1 step cutting system, forward propulsion of the S2 step shield system and forward movement of the S3 step self-guiding propulsion system, the roof bolt unit and the upper bolt unit are used for anchoring operation.
In summary, the invention has the following beneficial effects: the system is implemented based on an integrated operation platform integrating tunneling, supporting, anchoring and transporting functions, the layout and arrangement of the system are reasonable, the system configuration is simplified while the parallel operation of tunneling and anchoring is realized, the autonomous advancing and the rapid advancing of the system are realized through the self-guiding advancing system, the position of the system in a roadway can be corrected and adjusted in real time according to the advancing condition in the advancing process, the adaptability of the system is strong, the system can adapt to various complex roadway environments, the advancing of the system is ensured under the premise of safety and stability, the tunneling efficiency is improved, and the roadway tunneling cost is effectively reduced; during tunneling operation, parallel operation among all internal systems can be realized, a cutting system can form a roadway once, a shield system is used for supporting the roadway, a self-guiding propulsion system can realize advancing and correcting errors, an anchoring system can permanently support the roadway in time, system configuration is effectively simplified, reliability and adaptability of the system are improved, tunneling efficiency and safety can be further improved, manufacturing cost is reduced, and overall reliability of the system is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a mining, supporting and anchoring system (excluding a rubber belt conveyor) from a side view for implementing the dual-guide rapid mining, supporting and anchoring construction method of the present invention for a coal mine roadway;
FIG. 2 is a schematic diagram of a portion of a mining, supporting and anchoring system (excluding tape conveyor and bridge conveyor) from a side view perspective for implementing the dual-guide rapid mining, supporting and anchoring construction method of the present invention for a coal mine roadway;
FIG. 3 is a schematic view of a portion of a mining, supporting and anchoring system (excluding tape conveyor and bridge conveyor) from a top view for implementing the dual-guide rapid mining, supporting and anchoring construction method of the present invention;
FIG. 4 is a schematic diagram of a cutting system in a mine tunnel double-guide rapid mine tunnel boring, supporting and anchoring system for implementing the method of the present invention;
FIG. 5 is a schematic diagram of a loading system in a mine roof in side view for implementing the dual-pilot rapid mine roof construction method of the present invention;
FIG. 6 is a schematic diagram of a loading system in front view of a mining, support and anchor system for practicing the coal mine roadway dual-directional rapid mining, support and anchor construction method of the present invention;
FIG. 7 is a side view of a shield system in a roadway-driving, supporting and anchoring system for implementing the coal mine roadway double-guide rapid roadway-driving, supporting and anchoring construction method of the present invention;
FIG. 8 is an elevation view of a shield system in a roadway-driving, supporting and anchoring system for implementing the coal mine roadway double-guide rapid roadway-driving, supporting and anchoring construction method of the present invention;
FIG. 9 is a schematic perspective view of a shield system in a tunneling, supporting and anchoring system for implementing the dual-guide rapid tunneling, supporting and anchoring construction method of the coal mine roadway of the present invention;
FIG. 10 is an elevation view of a self-steering propulsion system in a roadway-driving, supporting and anchoring system for practicing the dual-steering, rapid roadway-driving, supporting and anchoring construction method of the present invention;
FIG. 11 is a side view of a self-steering propulsion system in a roadway-driving, supporting and anchoring system for practicing the coal mine roadway double-steering, rapid supporting, supporting and anchoring construction method of the present invention;
FIG. 12 is a diagram of a dual-pilot rapid branch mining and anchoring system for a coal mine roadway embodying the present invention a side view of a gantry type equipment platform in a digging, supporting and anchoring system of the construction method;
FIG. 13 is a top view of a gantry type equipment platform in a mine tunnel double-guide rapid-digging, supporting and anchoring system for implementing the method of the present invention;
reference numerals: 1-a cutting system; 2-shield system; 3-self-steering propulsion system; 5-a ventilation and dust removal system; 6-scraper conveyor; 7-bridge type transfer conveyor; 8-large-stroke self-moving tail; 9-a front deviation adjusting mechanism; 10-a front propulsion cylinder; 11-a rear propulsion cylinder; 12-a gantry type equipment platform; 13-a rear deviation adjusting mechanism; 14-loading system; 15-roof bolting machine; 16-upper roof bolter; 17-an electrical control system; 18-a hydraulic system; 19-a cutting drum; 20-a cutting speed reducer; 22-big arm sliding frame; 23-slitting oil cylinder; 24-cutting a large arm; 25-cutting lifting oil cylinders; 26-a guide post; 27-a telescopic oil cylinder; 28-a star wheel driving part; 29-variable cross-section telescopic mechanism; 30-a scraper conveyor driven wheel connecting structure; 31-a dust removal spraying mechanism; 32-a star wheel loading mechanism; 33-a main blade; 35-self-guiding slide; 37-supporting an oil cylinder; 38-advance support structure; 39-an advance cylinder; 40-upper shield body; 41-a guide structure; 42-lower shield body; 43-bottom slipper; 44-tightening the oil cylinder; 45-lateral support boots; 46-slipping box body; 47-jack means; 48-a cross beam; 49-a support kit; 411-chute; 51-an anchor network auxiliary platform; 52-an anchor net library; 53-an anchor rod and cable library; 55-a liftable drilling and anchoring platform; 56-a platform lifting oil cylinder; 58-intelligent system.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The invention relates to a concrete embodiment 1 of a double-guide rapid tunneling, supporting and anchoring construction method for a coal mine roadway, which comprises the following steps:
the excavating, supporting and anchoring system shown in fig. 1-13 is the equipment implementation foundation of the invention, and the whole structure is arranged as shown in fig. 1-3, and comprises a cutting system 1, a loading system 14, a shield system 2, a self-guiding propulsion system 3, a gantry type equipment platform 12 and a transportation system, wherein the shield system 2, the self-guiding propulsion system 3 and the gantry type equipment platform 12 are sequentially arranged from front to back in the tunneling direction.
Referring to the structure of the shield system 2, as shown in fig. 7-9, the shield system 2 is in a shape of a mouth transversely and integrally, and mainly comprises an upper shield body 40, a lower shield body 42, a supporting cylinder 37, a guiding structure 41, an advance supporting structure 38 and an advance cylinder 39, wherein the upper shield body 40 and the lower shield body 42 are connected with the guiding structure 41 through the supporting cylinders 37 on two sides, the supporting cylinder 37 is used for driving the upper shield body 40 to lift up to prop a tunnel top plate, the guiding structure 41 is a guiding rod arranged on the upper shield body 40, and correspondingly, a telescopic slot which is matched with the guiding rod in a sliding guiding manner is arranged on the lower shield body 42. The advance support structure 38 is arranged in a telescopic cavity at the front end of the top of the upper shield body 40 in a drawer type telescopic manner, the advance oil cylinder 39 is positioned at the lower side of the top of the upper shield body 40, two ends of the advance oil cylinder are respectively hinged with the upper shield body 40 and the lower side of the advance support structure 38, and if necessary, the advance support structure extends out according to tunneling conditions to play a role in advance support. The cutting system 1 and the loading system 14 are both arranged on the lower shield body of the shield system 2.
The specific structure of the self-guiding propulsion system 3 is shown in fig. 10-11, the self-guiding propulsion system 3 is in a door shape transversely, the self-guiding propulsion system 3 comprises a main body frame, a bottom sliding shoe 43, a lateral supporting shoe 45 and a supporting device 47, the main body frame comprises sliding box bodies 46 on two sides and a cross beam 48 connected with the upper ends of the two sliding box bodies, and the sliding box bodies 46 and the cross beam 48 are fixedly connected through flanges and bolts. The lateral supporting shoes 45 are positioned at two sides of the main body frame, and a tightening oil cylinder 44 is connected between the lateral supporting shoes 45 and the sliding box body. The propping device 47 is located above the main body frame, a supporting sleeve 49 and a propping oil cylinder are connected between the propping device 47 and the main body frame, wherein the supporting sleeve 49 comprises an inner guide rod located on the propping device 47 and an outer sleeve located on the main body frame, the outer sleeve and the inner guide rod are in guide sliding fit, the outer sleeve and the inner guide rod are used for supporting the propping device 47 to move relative to the main body frame, the propping oil cylinder is located inside the supporting sleeve 49, and two ends of the propping oil cylinder are respectively connected with the main body frame and the propping device 47. The bottom sliding shoe 43 is located at the lower end of the sliding box 46 and is connected with the sliding box 46 through a bottom oil cylinder. The lower shield body is provided with a self-guiding slideway 35, and the inner sides of the lower ends of the two sliding boxes are provided with sliding grooves 411 which are in sliding fit with the self-guiding slideway 35, namely, the self-guiding propulsion system 3 can slide relative to the lower shield body.
The gantry type equipment platform 12 is shown in fig. 12-13, and is provided with an anchoring system, a ventilation and dust removal system 5, an intelligent system 58, a hydraulic system 18 and an electric control system 17. The anchoring system comprises a jacking anchoring machine 15 set, an upper anchoring machine 16 set, an anchor net warehouse 52, an anchor rod and anchor rope warehouse 53, a liftable drilling anchoring platform 55 and a platform lifting oil cylinder 56, wherein the platform lifting oil cylinder 56 is supported between the chassis of the gantry type equipment platform 12 and the liftable drilling anchoring platform 55, the jacking anchoring machine 15 set is positioned on the liftable drilling anchoring platform, and the platform lifting oil cylinder 56 is used for adjusting the upper and lower positions of the liftable drilling anchoring platform 55 and the jacking anchoring machine 15. The group of upper anchoring machines 16 are distributed on two sides of the chassis of the gantry type equipment platform 12, an anchor net warehouse 52 is positioned at the top of the rear part of the gantry type equipment platform, and a liftable anchor net auxiliary platform 51 is arranged between the upper anchoring machines 15 and the anchor net warehouse 52 on the gantry type equipment platform 12 and is used for assisting personnel in anchor net laying. The hydraulic system 18 comprises a pump station, an oil tank and a filtering system, the power supply system comprises a movable transformer, a combination switch and a towing device, the electric control system 17 mainly comprises a control valve group, a controller, a driver, a power supply and a remote controller, the ventilation and dust removal system 5 mainly comprises a dust removal fan and an air duct, and the dust removal fan is positioned below the anchor net warehouse 52 and used for sucking dust on a working surface through the air duct. The intelligent system comprises an automatic navigation positioning system, an automatic cutting system, a remote monitoring system and a centralized control system, and can realize the intellectualization and automation of tunnel excavation. The front side of the self-guiding propulsion system 3 is connected with the shield mechanism 2 through a front propulsion cylinder 10, and the rear side is connected with a gantry type equipment platform 12 through a rear propulsion cylinder 11.
The conveying system comprises a scraper conveyor 6, a bridge type reversed loader 7, a large-stroke self-moving tail 8 and a rubber belt conveyor, wherein the scraper conveyor 6, the bridge type reversed loader 7 and the rubber belt conveyor are sequentially arranged from front to back, the front part of the scraper conveyor 6 is connected with the loading system, and the rear part of the scraper conveyor is connected with a main frame pulling and moving seat which is in sliding fit with a gantry type equipment platform. The front part of the bridge type reversed loader 7 is overlapped with the rear part of the scraper conveyor 6, the large-stroke self-moving tail 8 is arranged at the lower part of the bridge starting section of the bridge type reversed loader 7 and used for bridging the bridge type reversed loader 7 and the rubber belt conveyor, and the time for stopping and increasing the frame of the rubber belt conveyor can be greatly reduced by arranging the large-stroke self-moving tail, so that the tunneling efficiency is improved. In the embodiment, the rear part of the scraper conveyor 6 is connected with the main frame pulling and moving seat through the tail adjusting oil cylinder, so that the height of the rear part of the scraper conveyor is adjustable, and the roadway adaptability is improved.
The specific structure of the cutting system 1 is shown in fig. 4, and comprises a large cutting arm 24, a cutting roller 19, a cutting motor, a cutting speed reducer 20, a large arm sliding frame 22, a slitting oil cylinder 23 and a cutting lifting oil cylinder 25, wherein a guide post 26 which is in sliding guide fit with the large arm sliding seat 22 is arranged on a lower shield body 42, the rear end of the large cutting arm 24 is hinged with the large arm sliding seat, the cutting speed reducer 20 is arranged at the front end of the large cutting arm, the cutting lifting oil cylinder 25 is used for driving the large cutting arm 24 to swing up and down so as to cut coal rocks, and two ends of the cutting lifting oil cylinder 25 are respectively hinged with the large cutting arm 24 and the large arm sliding seat 22. The slitting cylinder 23 is used for driving the cutting boom to advance forward/retract backward, and two ends of the slitting cylinder are respectively connected with the lower shield body 42 and the boom sliding seat 22. The cutting speed reducer 20 is disposed inside the cutting drum, and the front portion of the cutting arm 24 is hollow and provided with a cutting motor. The cutting speed reducer 20 is arranged inside the cutting drum 19, the cutting drum 19 is distributed relative to the transverse shaft of the cutting large arm, and the cutting motor is in transmission connection with the cutting speed reducer 20 and is used for driving the cutting speed reducer and even the cutting drum 19 to rotationally cut.
The specific structure of the loading system is shown in fig. 5-6, and mainly comprises a main shovel plate 33, a star wheel loading mechanism 32, a variable cross-section telescopic mechanism 29, a telescopic oil cylinder 27 and a star wheel driving part 28, wherein the star wheel loading mechanism 32 is arranged on two sides of the inside of the main shovel plate 33, and the star wheel driving part 28 for driving the star wheel loading mechanism 32 to rotate is arranged at the rear part of the main shovel plate 33. The front surface of the main shovel plate 33 is concave, a scraper conveyor driven wheel connecting structure 30 used for being connected with a scraper conveyor 6 driven wheel is arranged at a concave position, a loading system is used for collecting coal rocks generated by loading and cutting, a conveying system is used for conveying the coal rocks loaded by the loading system backwards through the scraper conveyor 6, a bridge transfer conveyor 7 and a rubber belt conveyor in sequence, and a dust removal spraying mechanism 31 is arranged on the main shovel plate 33.
In the embodiment, front deviation adjusting mechanisms 9 are arranged on two sides of the lower end of the shield mechanism 2, rear deviation adjusting mechanisms 13 are arranged on two sides of the lower end of the gantry type equipment platform 12, a front deviation adjusting cylinder is connected between the front deviation adjusting mechanisms 9 and the lower shield body 2, and the front deviation adjusting cylinder is controlled to drive the front deviation adjusting mechanisms 9 to stretch and retract relative to the lower shield body 2 so as to achieve the functions of correcting and adjusting the front positions; a rear deviation adjusting oil cylinder is connected between the rear deviation adjusting mechanism 13 and the gantry type equipment platform 12, and the rear deviation adjusting oil cylinder is controlled to drive the rear deviation adjusting mechanism 13 to extend out relative to the gantry type equipment platform 12, so that the functions of correcting and adjusting the rear part are achieved.
The front propulsion oil cylinder 10, the rear propulsion oil cylinder 11, the tightening oil cylinder, the top support oil cylinder and the bottom oil cylinder are internally provided with travel sensors, and the travel sensors are connected with a controller in an electrical control system, so that the telescopic beams of all the oil cylinders can be accurately controlled, and accurate walking, left and right deflection adjustment and steering are realized. The hydraulic circuits of the front propulsion oil cylinder 10, the rear propulsion oil cylinder 11, the tightening oil cylinder, the top support oil cylinder and the bottom oil cylinder are all provided with pressure sensors, control valves in the control valve group are load sensitive proportional valves, the pressure sensors feed back pressure information to the control valves, and the damage to the top plate, the bottom plate and the coal wall is reduced by sensing the pressure change of the oil cylinders and adapting to various roadway conditions.
Based on the equipment foundation, the double-guide rapid tunneling, supporting and anchoring construction method for the coal mine tunnel comprises the following steps:
s1: the position of the tunneling, supporting and anchoring system in the tunnel is adjusted through the self-guiding propulsion system, the front deviation adjusting mechanism and the rear deviation adjusting mechanism, the shield system is lifted, and the upper shield body is contacted with the tunnel roof and applies prestress; the cutting lifting cylinder is operated to drive the cutting roller to cut coal up and down, the cutting cylinder pushes the large arm sliding seat and the cutting large arm to slide forwards, a step distance is cut forwards, the operation advance cylinder controls the advance support structure to extend out in the forward pushing process of the cutting roller, the empty top distance is reduced, and the cut coal blocks are sequentially conveyed backwards through the loading system, the scraper conveyor, the bridge type transfer conveyor and the adhesive tape conveyor;
s2: after the cutting is completed, the cutting system and the advanced support structure are retracted, the self-guiding propulsion system is regulated, the propping device is lifted to enable the propping device to be in full contact with the roadway top plate, the bottom sliding shoes are extended to ensure that the bottom sliding shoes are in full contact with the roadway bottom plate, the side supporting shoes are extended to tightly support the two side plates, and the self-guiding propulsion system is taken as a fulcrum to drive the front propulsion oil cylinder to enable the shield system to be propelled forwards together with the cutting system and the loading system;
s3: retracting the top support device, the bottom sliding shoes and the lateral support shoes of the self-guiding propulsion system, and retracting the front propulsion cylinder so as to enable the self-guiding propulsion system to slide forwards;
s4: the top supporting device, the bottom sliding shoes and the lateral supporting shoes extend out of the self-guiding propulsion system, so that the top supporting device contacts and tightly props against a roadway top plate, the bottom sliding shoes fully contact with a bottom plate, the lateral sliding shoes tightly support two side plates, and the self-guiding propulsion system is taken as a fulcrum to drive a rear propulsion cylinder to enable a rear gantry type equipment platform to move forwards;
s5: repeating the steps S1-S4, and realizing the rapid tunneling of the tunnel.
In the forward moving process of the shield system, the forward moving process of the self-guiding propulsion system and the forward moving process of the gantry type equipment platform, the position of the tunneling, supporting and anchoring system relative to the roadway is adjusted through the self-guiding propulsion system, the front deviation adjusting mechanism and the rear deviation adjusting mechanism, so that the steering and deviation correcting effects are achieved. In the cutting operation of the cutting system in the step S1, the forward pushing of the shield system in the step S2 and the forward moving of the self-guiding pushing system in the step S3, the roof bolt unit and the upper bolt unit are used for anchoring operation.
In summary, in the construction process of the invention, the horizontal shaft type roller is used for realizing the integrated roadway forming, the shield system can provide key walking and supporting functions, the rear drilling and anchoring system can permanently support the roadway in time, the system configuration is simplified on the basis of realizing the tunneling operation function, and the system reliability is improved. The self-guiding propulsion system can realize orderly advance and rapid propulsion of the system, has strong structural adaptability, can adapt to various complex roadway environments, can improve the tunneling efficiency and save the tunneling cost, and can solve the technical problems of easy sinking and slow walking of the crawler caused by adopting a crawler walking mode in the conventional underground tunneling equipment.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (3)
1. The double-guide rapid tunneling, supporting and anchoring construction method for the coal mine tunnel is characterized by comprising the following steps of:
s1: the position of the tunneling, supporting and anchoring system in the tunnel is adjusted through the self-guiding propulsion system, the front deviation adjusting mechanism and the rear deviation adjusting mechanism, the shield system is lifted, and the upper shield body is contacted with the tunnel roof and applies prestress; the cutting lifting cylinder is operated to drive the cutting roller to cut coal up and down, the cutting cylinder pushes the large arm sliding seat and the cutting large arm to slide forwards, a step distance is cut forwards, the operation advance cylinder controls the advance support structure to extend out in the forward pushing process of the cutting roller, the empty top distance is reduced, and the cut coal blocks are sequentially conveyed backwards through the loading system, the scraper conveyor, the bridge type transfer conveyor and the adhesive tape conveyor;
s2: after the cutting is completed, the cutting system and the advanced support structure are retracted, the self-guiding propulsion system is regulated, the propping device is lifted to enable the propping device to be in full contact with the roadway top plate, the bottom sliding shoes are extended to ensure that the bottom sliding shoes are in full contact with the roadway bottom plate, the side supporting shoes are extended to tightly support the two side plates, and the self-guiding propulsion system is taken as a fulcrum to drive the front propulsion oil cylinder to enable the shield system to be propelled forwards together with the cutting system and the loading system;
s3: retracting the top support device, the bottom sliding shoes and the lateral support shoes of the self-guiding propulsion system, and retracting the front propulsion cylinder so as to enable the self-guiding propulsion system to slide forwards;
s4: the top supporting device, the bottom sliding shoes and the lateral supporting shoes extend out of the self-guiding propulsion system, so that the top supporting device contacts and tightly props against a roadway top plate, the bottom sliding shoes fully contact with a bottom plate, the lateral sliding shoes tightly support two side plates, and the self-guiding propulsion system is taken as a fulcrum to drive a rear propulsion cylinder to enable a rear gantry type equipment platform to move forwards;
s5: repeating the steps S1-S4, and realizing the rapid tunneling of the tunnel.
2. The method for constructing the double-guide rapid tunneling, supporting and anchoring of the coal mine tunnel according to claim 1, wherein the position of the tunneling, supporting and anchoring system relative to the tunnel is adjusted through the self-guide propulsion system, the front deviation adjusting mechanism and the rear deviation adjusting mechanism in the process of forward moving of the shield system, forward moving of the self-guide propulsion system and forward moving of the gantry type equipment platform.
3. The method for double-guide rapid tunneling, supporting and anchoring construction of the coal mine tunnel according to claim 2, wherein the roof bolt unit and the upper bolt unit are used for anchoring in the process of S1 step cutting operation, S2 step shield system forward pushing and S3 step self-guide pushing system forward moving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310474336.0A CN116427944A (en) | 2023-04-28 | 2023-04-28 | Double-guide rapid tunneling, supporting and anchoring construction method for coal mine tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310474336.0A CN116427944A (en) | 2023-04-28 | 2023-04-28 | Double-guide rapid tunneling, supporting and anchoring construction method for coal mine tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116427944A true CN116427944A (en) | 2023-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310474336.0A Pending CN116427944A (en) | 2023-04-28 | 2023-04-28 | Double-guide rapid tunneling, supporting and anchoring construction method for coal mine tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116427944A (en) |
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2023
- 2023-04-28 CN CN202310474336.0A patent/CN116427944A/en active Pending
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