CN108194114A - Roadway head protects top and anchor bolt construction integrated apparatus temporarily - Google Patents
Roadway head protects top and anchor bolt construction integrated apparatus temporarily Download PDFInfo
- Publication number
- CN108194114A CN108194114A CN201810119416.3A CN201810119416A CN108194114A CN 108194114 A CN108194114 A CN 108194114A CN 201810119416 A CN201810119416 A CN 201810119416A CN 108194114 A CN108194114 A CN 108194114A
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- China
- Prior art keywords
- arm
- telescopic
- oil cylinder
- anchor rod
- anchor
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- 238000010276 construction Methods 0.000 title claims abstract description 30
- 239000000725 suspension Substances 0.000 claims abstract description 11
- 230000005641 tunneling Effects 0.000 claims description 29
- 238000005553 drilling Methods 0.000 claims description 10
- 239000003245 coal Substances 0.000 abstract description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 3
- 238000009412 basement excavation Methods 0.000 description 10
- 238000004873 anchoring Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
Roadway head of the present invention protects top and anchor bolt construction integrated apparatus temporarily, including single group stent, telescopic arm, shield top panel and rotating hanging roof bolter mechanism etc..Single group stent saves carrier unit by two rows two and is formed by connecting by transversal stretching beam, often section carrier unit is made of the column and vertical guide stem of top beam, pedestal, connection top beam and pedestal, one end of the forepart connection telescopic arm of the pedestal of carrier unit, the other end connection shield top panel and suspension column of telescopic arm.Development machine side is tunneled, telescopic arm side elongation shield top.Pass through rotating hanging roof bolter mechanism construction top and slope bolt.The present invention for tunnelling provide a wide range of gib, simple and reliable for structure, effective protection top anchor shaft anchor cable, reduce to top plate disturbance, meet " one pick more anchors " technological requirement, safe, semi-mechanization construct anchor pole, reduce and dig lane cost and hand labor intensity; speed of application improves more than 80%, suitable for fields such as coal mine, metallurgical mine, underground engineering and Tunnel Engineering.
Description
Technical Field
The invention belongs to the technical field of coal mine roadway tunneling, and particularly relates to a temporary roof protection and anchor rod construction integrated device for roadway tunneling working face.
Background
Coal mine excavation imbalance is one of the main factors influencing high-yield and high-efficiency production of mines in China at present. The coal mining mechanization degree of the coal mine is higher and higher, the stoping speed is higher and higher, but the tunneling speed of the tunnel is not obviously improved. The coal mine crossheading tunneling speed is generally 200-. For special conditions, if a gob-side driving roadway is adopted, the gob-side driving roadway needs to be driven after the caving and compaction of the goaf, and at least lags behind the last working face by more than 400m, the tension relation of the driving is more prominent.
At present, three tunneling modes are adopted, the most used mode is a tunneling mode of a tunneling machine and a single anchor rod drilling machine, namely, after tunneling, anchoring is carried out, and the mode is that one row of anchor rods are drilled by one tunneling cutter, so that the construction speed is low; the second mode is that under the condition of better roof plate condition, tunneling is carried out for 2-6 cutters at one time, then anchor rod supporting is carried out, namely, so-called front tunneling and rear anchoring can improve the tunneling speed and efficiency, but in the condition, the roof plate condition is required to be better, the current application condition is limited, and at the same time, the construction specification is contradicted; the third mode is the mode with the highest tunneling speed at present, the forward tunneling and the back parallel supporting operation are carried out, the tunneling distance is more than 10m, the roof condition is required to be more stable, and meanwhile, the equipment cost is high, the size is large, and the difficulty in moving the house and reversing the face is large.
In order to improve the tunneling speed, one-tunneling multi-anchor is an effective mode, but temporary support needs to be provided, and the invention provides a device which can provide large-range temporary support, is not mutually influenced with a tunneling machine, has support on the whole course of a top plate and meets the technological requirement of one-tunneling multi-anchor.
Disclosure of Invention
The invention aims to provide an integrated device for top protection and anchor rod construction in the face of roadway excavation work, which can provide large-range temporary support, is not mutually influenced with an excavator, has support on the whole course of a top plate, meets the technological requirement of 'one excavation and multiple anchors', has light equipment, small damage degree to the top plate and high stability.
The invention is realized by adopting the following technical scheme:
the integrated device for roof protection and anchor rod construction comprises a single group of supports, two telescopic arms, a roof protection grid plate, two suspension upright columns and a rotary hanging anchor rod drilling machine mechanism; wherein,
the single-group support comprises two bases arranged in parallel and top beams arranged above the corresponding bases, the two top beams are connected together through a plurality of transverse telescopic beams arranged in parallel, and the top beams are connected with the corresponding bases through a lifting support mechanism;
a middle shaft is arranged on the transverse central axis of the top protection grating plate, and the middle shaft is an oil cylinder with two telescopic fixed middle parts;
the two telescopic arms are symmetrically arranged in front of the single group of supports, the head end of each telescopic arm is connected with an ear seat arranged on the front part of a corresponding base, the tail end of each telescopic arm is connected with the end part of an intermediate shaft on the top protection grid plate, and the middle part of each telescopic arm is connected with a corresponding base through a support arm oil cylinder;
the suspension upright columns are telescopic oil cylinders, and the tops of the two suspension upright columns are respectively connected with two ends of the middle shaft;
the rotary hanging anchor rod drilling machine mechanism comprises two rotary hanging oil cylinders, 1 anchor fixing box, a plurality of anchor rod drilling machines and two rotary oil cylinders, one end of each rotary hanging oil cylinder is connected with the end of the middle shaft, the other end of each rotary hanging oil cylinder is connected with the anchor fixing box, the plurality of anchor rod drilling machines are fixed on the upper portion of the anchor fixing box, and the middle of each rotary hanging oil cylinder is connected with the front end of the corresponding telescopic arm through the rotary oil cylinder.
The invention is further improved in that the lifting support mechanism comprises a vertical guide rod connected between the top beam and the corresponding base and two upright columns arranged on two sides of the vertical guide rod.
The invention is further improved in that the vertical guide rod comprises a guide sleeve and a guide rod, one end of the guide rod is sleeved in the guide sleeve, the bottom of the guide sleeve is arranged on the base, and the other end of the guide rod is connected to the corresponding top beam.
The invention is further improved in that the lifting support mechanism comprises a four-bar linkage connected between the top beam and the corresponding base and two upright columns arranged at two sides of the four-bar linkage.
The telescopic arm comprises a first section of arm, a second section of arm and an upper telescopic oil cylinder, wherein one end of the first section of arm is connected with the front end of the base, the other end of the first section of arm is sleeved outside one end of the second section of arm, the other end of the second section of arm is connected with the middle shaft, the upper telescopic oil cylinder is arranged above the outer part of the telescopic arm, one end of the upper telescopic oil cylinder is connected with the first section of arm, and the other end of the upper telescopic oil cylinder is connected.
The invention has the further improvement that the plane outline of the top protection grid plate is rectangular, the top protection grid plate is transversely provided with strip-shaped hollows, and a plurality of cushion blocks are uniformly arranged above the top protection grid plate at intervals.
A further development of the invention is that the number of jumbolters is 2-4.
The invention has the further improvement that a plurality of lateral oil cylinders which are vertical to the base are arranged on each base in the horizontal direction and are used for adjusting the gap between the device and the two sides of the roadway.
The invention has the following beneficial technical effects:
the integrated device for roof protection and anchor rod construction in the face of roadway excavation work provided by the invention has a simple and reliable equipment structure; the weight is light; the single group of supports are pulled by friction force generated by extending the oil cylinder supporting sides from two sides, so that disturbance to the roof protecting grid plate is reduced; the two rows of unit supports are rigidly connected by adopting the transverse telescopic beams, so that the transverse connection mode is changed, the structural integrity is high, and the stability is greatly improved; the 'one digging and one anchoring' is optimized into 'one digging and multiple anchoring', the parallel operation of the top anchor rod, the anchor cable and the side anchor rod is realized, the digging speed is improved, the field construction shows that the construction speed is improved by more than 80%.
Furthermore, the cushion blocks are arranged on the top protection grid plate, so that construction is facilitated, and the top plate anchor rod anchor cable can be effectively avoided.
The invention can be widely applied to the fields of coal mines, metallurgical mines, underground engineering, tunnel engineering, national defense engineering and the like.
Drawings
FIG. 1 is a three-dimensional view of a temporary roof protection and anchor rod construction integrated device in the heading face of the roadway driving work of the invention;
FIG. 2 is a front view of the roof protection and anchor rod construction integrated device when the roadway excavation work face of the invention;
FIG. 3 is a plan view of the roof protection and anchor rod construction integrated device of the invention in the face of roadway excavation work;
FIG. 4 is a side view of the integrated roof protection and anchor rod construction device of the invention when heading;
fig. 5 is a three-dimensional schematic diagram of the position relationship between the temporary roof protection and anchor rod construction integrated device and the heading machine and the conveying belt of the heading face of the roadway heading face.
FIG. 6 is a three-dimensional view of the invention, in which the vertical guide rod of the roof protection and anchor rod construction integrated device is changed into a four-bar linkage in the face of roadway excavation.
In the figure: 1-top beam; 2-a base; 2-1-lateral oil cylinder, 3-upright post; 4-vertical guide rod; 4-1-a guide bar; 4-2-a guide sleeve; 4-3-four bar linkage; 5-transverse telescopic beams; 6-telescopic arm; 6-1-one arm; 6-2-two-section arm; 6-3-upper telescopic oil cylinder; 7-ear seat; 8-a roof guard grating; 9-intermediate shaft; 10-a support arm oil cylinder; 11-hanging the upright post; 12-cushion blocks; 13-hanging the oil cylinder; 14-anchor fixing box; 15-jumbolter; 16-a rotating cylinder; 17-a heading machine; 18-conveying belt.
Detailed Description
The invention is further described below with reference to the following figures and examples.
Example 1
As shown in fig. 1 to 6, the temporary roof protection and anchor rod construction integrated device for roadway driving comprises a single group of supports, two telescopic arms 7, a roof protection grid plate 10, a suspension upright post 11 and a rotary hanging anchor rod drilling machine mechanism; the single-group support is formed by connecting two rows of support units through a transverse telescopic beam 5, the top beams 1 of the two rows of support units are connected through the transverse telescopic beam 5, and each section of support unit comprises a top beam 1, a base 2, an upright post 3 for connecting the top beam 1 and the base 2 and a vertical guide rod 4; the telescopic boom 6 is arranged in front of the single group of supports, the head end of the telescopic boom 6 is connected with an ear seat 7 arranged on the front part of the support unit base 2, the tail end of the telescopic boom 6 is connected with an intermediate shaft 9 on a top protection grid plate 8, the middle part of the telescopic boom 6 is connected with the unit support base 2 through a support arm oil cylinder 10, and the front part of each section of support unit is connected with one telescopic boom 6; the middle shaft 9 is arranged on the transverse central axis of the top protection grid plate 8, two ends of the middle shaft 9 are connected with the tail end of a telescopic arm 6 and a suspension upright post 11, and the middle shaft 9 is an oil cylinder with two telescopic ends and fixed in the middle; the suspension upright post 11 is a telescopic oil cylinder, and the top of the suspension upright post is connected with the intermediate shaft 9; the rotary hanging jumbolter mechanism consists of two rotary hanging oil cylinders 13, 1 anchor fixing box 14, 2-4 jumbolters 15 and two rotary oil cylinders 16, wherein one end of each rotary hanging oil cylinder 13 is connected with the intermediate shaft 9, the other end of each rotary hanging oil cylinder is connected with the anchor fixing box 14, the 4 jumbolters 15 are fixed on the upper parts of the anchor fixing boxes 14, and the middle parts of the rotary hanging oil cylinders 13 are connected with the front ends of the telescopic arms 6 through the rotary oil cylinders. In addition, a plurality of lateral oil cylinders 2-1 which are vertical to the base 2 are arranged on each base 2 in the horizontal direction and used for adjusting the gap between the device and the two sides of the roadway.
The telescopic arm consists of a first-section arm 6-1, a second-section arm 6-2 and an upper telescopic oil cylinder 6-3, wherein one end of the first-section arm 6-1 is connected with the front end of the base 2, the other end of the first-section arm is sleeved outside one end of the second-section arm 6-2, the other end of the second-section arm 6-2 is connected with the intermediate shaft 9, the upper telescopic oil cylinder 6-3 is arranged above the outer part of the telescopic arm 6, one end of the upper telescopic oil cylinder 6-3 is connected with the first-section arm 6-1, and the other end of the.
The plane outline shape of the top protection grid plate 8 is rectangular, a strip-shaped hollow part is transversely arranged, and cushion blocks 12 are uniformly arranged above the top protection grid plate 8 at intervals.
The vertical guide rod 4 consists of a guide sleeve 4-2 and a guide rod 4-1, the upper part of the guide rod 4-1 is connected with the top beam 1, the lower part is arranged in the guide sleeve 4-2, and the lower part of the guide sleeve 4-2 is connected with the base 2.
The engineering geological conditions are as follows: the cross section of the crossheading is 5.6 meters in width, 3.5 meters in height, the coal bed is 6.0 meters in thickness, the top coal is left for tunneling, the top coal is 2.5 meters in thickness, the tunneling working face is tunneled by a tunneling machine 17, the tunneling machine 17 is 2.8 meters in width, 1.7 meters in height and 10 meters in length, a conveying belt 18 is connected to the rear of the tunneling machine 13, the width of the conveying belt 18 is 1.4 meters, the tunneling machine 17 is arranged in the advance temporary support device, namely the tunneling machine 17 is arranged in the middle, two rows of support units are respectively arranged on two sides, and the telescopic arm 6 extends out of the tunneling machine 17 to reach the coal wall of the tunneling working.
The method comprises the following operation steps:
1) the development machine 17 cuts coal once, and the step distance of each cutter is 1.0 meter;
2) the telescopic arm 6 horizontally extends for 1.0 m;
3) the steps 1) and 2) are circulated for 5 times to reach a large circulation step distance of 5.0 meters, then the hanging upright post 11 is put down, the hanging upright post 11 is filled with liquid to prop up the top protection grid plate 8, and two ends of the middle shaft 9 is filled with liquid to extend out of the supporting wall;
4) the rotating oil cylinder 16 is contracted, the rotary hanging jumbolter mechanism is put down, the anchor fixing box 14 is moved to the bottom plate in place, and the jumbolter 15 is upright;
5) an operator enters the lower space of the top protecting grid plate 8, 6 persons construct a top anchor rod and an anchor cable in parallel operation, 2 persons construct a side anchor rod, and the operator exits after the top plate and side supporting construction is completed;
6) lowering the top beam 1 of the single group of supports;
7) the upper telescopic oil cylinder 6-3 is contracted, the single group of supports are continuously pulled forwards for a distance of 5m, then the top beam 1 is lifted, and the top plate is supported;
8) rotating the rotary hanging jumbolter mechanism and the hanging upright post 11 backwards to a horizontal position, and simultaneously withdrawing two ends of the intermediate shaft 9;
9) lowering the roof protecting grid plate 8, laying a metal net on the roof protecting grid plate, and then lifting the supporting roof;
10) and (4) entering the next major cycle, and repeating the steps 1) to 9) until the tunneling and supporting operation of the whole crossheading is finished.
Example 2
The vertical guide rod 4 of the temporary roof protection and anchor rod construction integrated device in the face of roadway driving is changed into a four-bar mechanism 4-3, and other structures and processes are the same as those in embodiment 1.
The roadway excavation working face is characterized in that the roof protection and anchor rod construction integrated device provides strong temporary support for excavation, improves the excavation speed by more than 80%, is safer and more efficient, and is suitable for the fields of coal mines, metallurgical mines, underground engineering, tunnel engineering and the like.
Claims (8)
1. The integrated device for roof protection and anchor rod construction in the face of roadway driving is characterized by comprising a single-group bracket, two telescopic arms (6), a roof protection grid plate (8), two suspension upright columns (11) and a rotary hanging anchor rod drilling machine mechanism; wherein,
the single-group support comprises two bases (2) which are arranged in parallel and top beams (1) which are arranged above the corresponding bases (2), the two top beams (1) are connected together through a plurality of transverse telescopic beams (5) which are arranged in parallel, and the top beams (1) are connected with the corresponding bases (2) through a lifting support mechanism;
an intermediate shaft (9) is arranged on the transverse central axis of the top protection grid plate (8), and the intermediate shaft (9) is an oil cylinder with two telescopic ends and a fixed middle part;
the two telescopic arms (6) are symmetrically arranged in front of the single group of supports, the head end of each telescopic arm (6) is connected with an ear seat (7) arranged on the front part of the corresponding base (2), the tail end of each telescopic arm (6) is connected with the end part of a middle shaft (9) on the top protection grid plate (8), and the middle part of each telescopic arm (6) is connected with the corresponding base (2) through a support arm oil cylinder (10);
the suspension upright columns (11) are telescopic oil cylinders, and the tops of the two suspension upright columns (11) are respectively connected with two ends of the middle shaft (9);
the rotary hanging anchor rod drilling machine mechanism comprises two rotary hanging oil cylinders (13), 1 anchor fixing box (14), a plurality of anchor rod drilling machines (15) and two rotary oil cylinders (16), one end of each rotary hanging oil cylinder (13) is connected with the end of an intermediate shaft (9), the other end of each rotary hanging oil cylinder is connected with the anchor fixing box (14), the anchor rod drilling machines (15) are fixed on the upper portions of the anchor fixing boxes (14), and the middle portion of each rotary hanging oil cylinder (13) is connected with the front end of the corresponding telescopic arm (6) through the rotary oil cylinder (16).
2. The integrated roof-protecting and anchor rod construction device for the heading face of the roadway driving work according to claim 1, wherein the lifting support mechanism comprises a vertical guide rod (4) connected between the top beam (1) and the corresponding base (2) and two upright posts (3) arranged on two sides of the vertical guide rod (4).
3. The integrated device for temporary roof protection and anchor rod construction of the tunneling working face according to claim 2, wherein the vertical guide rod (4) comprises a guide sleeve (4-2) and a guide rod (4-1) with one end sleeved in the guide sleeve (4-2), the bottom of the guide sleeve (4-2) is arranged on the base (2), and the other end of the guide rod (4-1) is connected to the corresponding top beam (1).
4. The integrated roof-protecting and anchor rod construction device for the heading face of the roadway driving work according to claim 1, wherein the lifting support mechanism comprises a four-bar linkage (4-3) connected between the top beam (1) and the corresponding base (2) and two upright columns (3) arranged at two sides of the four-bar linkage (4-3).
5. The integrated device for temporary roof protection and anchor rod construction of the roadway driving face according to claim 1, wherein the telescopic arm comprises a first section of arm (6-1), a second section of arm (6-2) and an upper telescopic oil cylinder (6-3), one end of the first section of arm (6-1) is connected with the front end of the base (2), the other end of the first section of arm is sleeved outside one end of the second section of arm (6-2), the other end of the second section of arm (6-2) is connected with the middle shaft (9), the upper telescopic oil cylinder (6-3) is arranged above the outer portion of the telescopic arm (6), one end of the upper telescopic oil cylinder (6-3) is connected with the first section of arm (6-1), and the other end of the upper telescopic oil cylinder is connected with.
6. The integrated roof protection and anchor rod construction device for the heading face of the roadway driving according to claim 1, wherein the plane outline of the roof protection grating (8) is rectangular, a strip-shaped hollow part is transversely arranged, and a plurality of cushion blocks (12) are uniformly arranged above the roof protection grating (8) at intervals.
7. The integrated roof-protecting and bolting device for heading face according to claim 1, wherein the number of bolting machines (15) is 2-4.
8. The integrated roof-protecting and anchor rod construction device for the face of tunneling operation according to claim 1, characterized in that each base (2) is provided with a plurality of lateral oil cylinders (2-1) which are arranged vertically to the base (2) in the horizontal direction and used for adjusting the gap between the device and two sides of the roadway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810119416.3A CN108194114A (en) | 2018-02-06 | 2018-02-06 | Roadway head protects top and anchor bolt construction integrated apparatus temporarily |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810119416.3A CN108194114A (en) | 2018-02-06 | 2018-02-06 | Roadway head protects top and anchor bolt construction integrated apparatus temporarily |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108194114A true CN108194114A (en) | 2018-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810119416.3A Pending CN108194114A (en) | 2018-02-06 | 2018-02-06 | Roadway head protects top and anchor bolt construction integrated apparatus temporarily |
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| Country | Link |
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| CN (1) | CN108194114A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691545A (en) * | 2018-03-30 | 2018-10-23 | 张卫东 | A kind of continuous tunneling construction method of bolting with wire mesh adapting to Complex Roof shape |
| CN108915739A (en) * | 2018-08-22 | 2018-11-30 | 山西天巨重工机械有限公司 | One kind is met head on protective device |
| CN109113772A (en) * | 2018-10-31 | 2019-01-01 | 河南理工大学 | A kind of systemic circulation temporary supporting device for laneway tunneling and its method |
| CN112302645A (en) * | 2020-11-12 | 2021-02-02 | 无锡华瀚能源装备科技有限公司 | Tunneling, anchoring and protecting integrated machine |
| CN113914910A (en) * | 2021-12-14 | 2022-01-11 | 中国矿业大学(北京) | Roadway combined beam support system construction device and method |
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| RU2144138C1 (en) * | 1998-06-11 | 2000-01-10 | Шахтинский институт Новочеркасского государственного технического университета | Shaft-sinking set |
| CN102536277A (en) * | 2012-01-11 | 2012-07-04 | 中国矿业大学(北京) | Follower assorted supporting and anchoring system of cantilever type development machine |
| CN107178384A (en) * | 2017-07-17 | 2017-09-19 | 中煤能源研究院有限责任公司 | The advanced telescopic cantilever suspension device of tunnelling and its construction method |
| CN107448152A (en) * | 2017-07-20 | 2017-12-08 | 陕西陕煤韩城矿业有限公司 | Combined hydraulic jumbolter workbench |
| CN207863983U (en) * | 2018-02-06 | 2018-09-14 | 中煤能源研究院有限责任公司 | Roadway head protects top and anchor bolt construction integrated apparatus temporarily |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2144138C1 (en) * | 1998-06-11 | 2000-01-10 | Шахтинский институт Новочеркасского государственного технического университета | Shaft-sinking set |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691545A (en) * | 2018-03-30 | 2018-10-23 | 张卫东 | A kind of continuous tunneling construction method of bolting with wire mesh adapting to Complex Roof shape |
| CN108691545B (en) * | 2018-03-30 | 2019-06-28 | 张卫东 | A kind of continuous tunneling construction method of bolting with wire mesh adapting to Complex Roof shape |
| CN108915739A (en) * | 2018-08-22 | 2018-11-30 | 山西天巨重工机械有限公司 | One kind is met head on protective device |
| CN109113772A (en) * | 2018-10-31 | 2019-01-01 | 河南理工大学 | A kind of systemic circulation temporary supporting device for laneway tunneling and its method |
| CN109113772B (en) * | 2018-10-31 | 2024-03-29 | 河南理工大学 | Large-circulation roadway tunneling temporary support device and method thereof |
| CN112302645A (en) * | 2020-11-12 | 2021-02-02 | 无锡华瀚能源装备科技有限公司 | Tunneling, anchoring and protecting integrated machine |
| CN113914910A (en) * | 2021-12-14 | 2022-01-11 | 中国矿业大学(北京) | Roadway combined beam support system construction device and method |
| CN113914910B (en) * | 2021-12-14 | 2022-04-01 | 中国矿业大学(北京) | Roadway combined beam support system construction device and method |
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