CN105464683A - TBM shoring operation movable shield and application method thereof - Google Patents
TBM shoring operation movable shield and application method thereof Download PDFInfo
- Publication number
- CN105464683A CN105464683A CN201510974640.7A CN201510974640A CN105464683A CN 105464683 A CN105464683 A CN 105464683A CN 201510974640 A CN201510974640 A CN 201510974640A CN 105464683 A CN105464683 A CN 105464683A
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- China
- Prior art keywords
- canopy body
- protection shield
- workbench
- tbm
- removable protection
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- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000011435 rock Substances 0.000 claims abstract description 36
- 238000010276 construction Methods 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 231100000241 scar Toxicity 0.000 claims description 4
- 210000000746 body region Anatomy 0.000 claims description 3
- 238000011900 installation process Methods 0.000 claims description 2
- 239000010720 hydraulic oil Substances 0.000 abstract 2
- 238000009412 basement excavation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/155—Laggings made of strips, slats, slabs or sheet piles
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a TBM shoring operation movable shield and an application method thereof. The movable shield comprises a shed body in the same curvature radius with a tunnel, and the shed body is provided with roofbolter holes used for anchor rod construction. The lower part of the shed body is connected with a plurality of supporting columns. The outer side of the supporting column is provided with a column sleeve. The supporting column can slide up and down in the column sleeve. The bottom end of the column sleeve is connected with a workbench. The middle part of the shed body is connected with a hydraulic oil cylinder which can make the shed body move up and down. The bottom end of the hydraulic oil cylinder is connected with a lug base which is fixed above the workbench. The bottom of the workbench is provided with travelling wheels which are cooperated with two tracks, and the tracks are fixed on ground. The workbench is also connected with a horizontal power system used to make the workbench move on the tracks. The movable shield can prevent collapse and rocks falling on a surrounding rock exposing area, and effectively protects safety of shoring construction personnel and mechanical equipment.
Description
Technical field
The present invention relates to a kind of TBM tunnel support technology, be specifically related to the removable protection shield of a kind of TBM supporting operation and using method thereof.
Background technology
TBM Tunnel Construction, owing to having the advantages such as speed of application is fast, construction environment dust is little, is widely applied in the construction of water power diversion tunnel, public iron traffic tunnel.In TBM work progress, along with cutterhead constantly tunnels forward, excavation face is constantly disclosed from TBM shield rear, now need disclose district at country rock and carry out once supporting operation.And when wall rock condition is poor, when country rock exposure district carries out once supporting operation (anchor pole, linked network), excavation face often has falling rocks even to cave in, and constitutes a serious threat to the safety of constructor and equipment, also have impact on supporting and drivage efficiency.Therefore, be badly in need of a kind of protective device of research and development, to guarantee that country rock discloses the safety of district personnel and plant equipment, and improve once supporting operating efficiency.
Summary of the invention
The object of the present invention is to provide the removable protection shield of a kind of TBM supporting operation and using method thereof, to solve the problem that TBM Wall Rock of Tunnel exposure district's landslide and falling rocks threaten personnel and device security, once supporting efficiency and the low problem of driving speed, the present invention can prevent country rock from disclosing district's landslide and falling rocks, the available protecting safety of supporting construction personnel and plant equipment; Meanwhile, within the scope of canopy body, the pre-splicing work of mesh sheet is carried out with driving simultaneously, significantly improves once supporting and TBM drivage efficiency.
For achieving the above object, the present invention adopts following technical scheme:
The removable protection shield of a kind of TBM supporting operation, comprise the canopy body identical with tunnel radius of curvature, canopy body offers the jumbolter hole for anchor bolt construction, the bottom of canopy body is connected with some support columns, the outside of support column is arranged with column sleeve, and support column can slide up and down in column sleeve, the bottom of column sleeve is connected to workbench, the middle part of canopy body is connected with the hydraulic jack that canopy body can be made to move up and down, hydraulic jack bottom is connected to the ear seat be fixed on column sleeve, ear seat is positioned at the top of workbench, the bottom of workbench is provided with the road wheel coordinated with two tracks being fixed on ground, workbench is also connected with the horizontal power system for making workbench move in orbit.
Further, canopy body is spliced by some curved plates identical with tunnel radius of curvature, and curved plate is provided with preformed hole, interts and be provided with the steel pipe be stitched together by curved plate in preformed hole.
Further, described jumbolter hole has two, is symmetrically distributed in the both sides of canopy body.
Further, horizontal power system comprises the fixed frame be connected with workbench, is provided with motor in fixed frame, and the output of motor is connected with worm-gear speed reducer, and the output of worm-gear speed reducer is connected with driving wheel.
Further, the both sides of workbench are connected with side plate, and the inner side of side plate is provided with for preventing the protection wheel protecting shield to derail in the process of walking.
Further, the steel plate for preventing track deformation is provided with between two tracks.
Further, described support column has four, is evenly distributed on the both sides of canopy body bottom; Described road wheel has four, is evenly distributed on the both sides bottom workbench.
A using method for the removable protection shield of TBM supporting operation, comprises the following steps:
Step 1: removable protection shield is rested in tunnel supporting region, carry out mesh sheet splicing work on canopy body top;
Step 2: after removable protection shield rear country rock discloses, is pushed into country rock by horizontal power system by removable protection shield and discloses district, then, to the pressurization of liquefaction oil cylinder, is promoted canopy body until press close to excavate scar, carry out mesh sheet installation by support column;
Step 3: after mesh sheet installation, keeps removable protection shield motionless, and adopt jumbolter to carry out bolthole construction by the jumbolter hole on canopy body, bolthole carries out rockbolt installation after having constructed.
Further, bolthole is constructed and in rockbolt installation process, after a rockbolt installation completes, is carried out bolthole construction and the rockbolt installation of other position by the position of horizontal power system call interception canopy body.
Further, also comprise step 4: after canopy body region mesh sheet and anchor bolt construction complete, reduce canopy body by hydraulic jack, make canopy body depart from country rock, then by horizontal power system, canopy body is pulled out supporting position.
Compared with prior art, the present invention has following useful technique effect:
Removable protection shield of the present invention can carry out mesh sheet before country rock discloses on canopy body top assembled in advance, and to improve mesh sheet installation effectiveness, canopy body is connected with support column, and support column can slide up and down under hydraulic jack effect in column sleeve, to adjust the height of canopy body.After protection shield rear country rock discloses, canopy body is promoted to country rock and discloses face, carry out mesh sheet connection and bolt support operation, column sleeve is fixing on the table, and workbench has road wheel, can seesaw in orbit under the driving of horizontal power system, the position keeping shield can be changed, so that repeat mesh sheet in front and back assembled in advance, the present invention can prevent country rock from disclosing district's landslide and falling rocks, the available protecting safety of supporting construction personnel and plant equipment; Meanwhile, within the scope of canopy body, the pre-splicing work of mesh sheet is carried out with driving simultaneously, significantly improves once supporting and TBM drivage efficiency.
Further, canopy body by arc-shaped just and steel pipe form, the radius of curvature of curved plate is identical with tunnel; Mesh sheet can be carried out on canopy body top assembled in advance, to improve mesh sheet installation effectiveness before TBM shield rear country rock discloses.
Further, horizontal power system comprises motor, worm-gear speed reducer, driving wheel, and the rotating speed of motor is decelerated to rotating speed of target by worm-gear speed reducer, drives protection shield advance or retreat under the effect of driving wheel.
Further, the both sides of workbench are connected with side plate, and the inner side of side plate is provided with protection wheel, derail in the process of walking for preventing protection shield.
The inventive method is before report shield rear country rock discloses, and protection shield rests in tunnel supporting region, carries out the pre-splicing work of mesh sheet on canopy body top; After protection shield rear country rock discloses, by horizontal power system, protection shield level is pushed into country rock and discloses district, by hydraulic jack, the act of canopy body is carried out mesh sheet installation to country rock face; After mesh sheet has connected, under the protection of protection shield, carry out anchor bolt construction; After anchor bolt construction completes, shrink hydraulic jack canopy body is regained, tunnel supporting district is again retracted under horizontal power systemic effect, along with TBM constantly tunnels forward, continuous protection shield track to be laid forward, can prevent country rock from disclosing district's landslide and falling rocks, the available protecting safety of supporting construction personnel and plant equipment; Meanwhile, within the scope of canopy body, the pre-splicing work of mesh sheet is carried out with driving simultaneously, significantly improves once supporting and TBM drivage efficiency.
Accompanying drawing explanation
Fig. 1 is overall structure elevation of the present invention;
Fig. 2 is overall structure lateral view of the present invention;
Fig. 3 is canopy body structure schematic diagram of the present invention.
Wherein, 1, canopy body; 2, support column; 3, column sleeve; 4, hydraulic jack; 5, workbench; 6, road wheel; 7, protection wheel; 8, track; 9, horizontal power system; 10, curved plate; 11, steel pipe; 12, motor; 13, worm-gear speed reducer; 14, driving wheel; 15, jumbolter hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
See Fig. 1 to Fig. 3, a kind of TBM supporting operation packaged type protection shield, this device comprises canopy body 1, support column 2, column sleeve 3, hydraulic jack 4, workbench 5, road wheel 6, protection wheel 7, track 8, horizontal power system 9.Canopy body 1 is made up of curved plate 10 and steel pipe 11, and curved plate 10 radius of curvature is identical with tunnel excavation face, and is provided with the preformed hole that steel pipe 11 mates, and steel pipe 11 to insert in curved plate 10 preformed hole and carries out weldering ties formation canopy body 1.The weight of canopy body 1 reaches the track 8 on ground by support column 2 and hydraulic jack 4, the top of hydraulic jack 4 is against on canopy body 1, bottom is connected to the ear seat be fixed on column sleeve 3, crossbeam is had to connect between column sleeve 3, ear seat is welded on described crossbeam, the earhole of hydraulic jack 4 and the hole pin shaft joint of ear seat, ear seat is positioned at the top of workbench 5.Under hydraulic jack 4 acts on, support column 2 can be free to slide in column sleeve 3, promotes or reduces canopy body 1.By locking, will prevent canopy body 1 continuation from gliding and guarantee the safety of personnel and equipment on workbench 5 when support column 2 is down to workbench 5.Workbench 5 bottom is provided with road wheel 6 and protection wheel 7, and top weight is passed to track 8 by road wheel 6, and protection wheel 7 is positioned at track 8 bottom, is mainly used to prevent protection shield from derailing in the process of walking.Plate Welding is adopted to prevent track deformation between two tracks 8.Protection shield horizontal power system 9 is made up of motor 12, worm-gear speed reducer 13, driving wheel 14.The rotating speed of motor 12 is decelerated to rotating speed of target by worm-gear speed reducer 13, drives protection shield advance or retreat under the effect of driving wheel 14.
In TBM work progress, first, protection shield rests in tunnel supporting region, carries out mesh sheet splicing work on canopy body 1 top; After protection shield rear country rock discloses, protection shield is pushed into country rock and discloses district, carry out mesh sheet installation; Under the protection of protection shield, carry out anchor bolt construction by jumbolter hole 15; After anchor bolt construction completes, protection shield is retracted again tunnel supporting district.
Adopt this protection shield, when the once supporting operation of TBM, mesh sheet connection work can be carried out in advance in canopy body 1 top, after excavation face releases protection shield, once completes the connection of mesh sheet within the scope of canopy body, can significantly improve once supporting efficiency.Meanwhile, in anchor bolt construction process, protection shield can prevent country rock face bulk falling rocks, the safety of energy available protecting constructor and equipment.
Below operating process of the present invention is described in detail:
Packaged type protection shield of the present invention comprises canopy body 1, support column 2, column sleeve 3, hydraulic jack 4, workbench 5, road wheel 6, protection wheel 7, track 8, horizontal power system 9.Canopy body 1 is made up of curved plate 10 and steel pipe 11, curved plate 10 has steel pipe preformed hole, and steel pipe 11 inserts in steel pipe preformed hole, carries out weldering knot in insertion point.Support column 2 is limited in column sleeve 3 in horizontal plane, can move up and down under hydraulic jack 4 acts in column sleeve 3.Column sleeve 3 bottom is fixed on workbench 5.Road wheel 6 bottom contacts with track 8, mainly bears top weight.Protection wheel 7 is in order to prevent from derailing in protection shield walking process.
During use, according to the following steps:
1. mesh sheet is assembled in advance: in TBM tunneling process, and when protecting shield rear country rock excavation face not yet to disclose, protection shield is positioned at below supporting region.The radius of curvature of curved plate 10 is identical with tunnel excavation face, and according to the interval of mesh sheet specification determination curved plate 10 and steel pipe 11, it is assembled in advance to carry out mesh sheet on the upside of canopy body 1, connects between mesh sheet.
2. mesh sheet is installed: after protection shield rear country rock excavation face discloses, the motor 12 of fetching boiling water in translation Force system 9, is down to desired value by worm-gear speed reducer 13 by motor 12 rotating speed, and power is passed to driving wheel 14.Protection shield level is pushed into and discloses below scar by driving wheel 14.Then, to liquefaction oil cylinder 4 pressurize, by support column 2 by canopy body 1 vertical lifting until press close to excavate scar, carry out mesh sheet installation.
3. anchor bolt construction: after mesh sheet installation, keep protection shield motionless, adopt jumbolter to carry out bolthole construction by the jumbolter hole 15 in canopy body, bolthole carries out rockbolt installation after having constructed.After a rockbolt installation completes, carried out the construction of other position anchor pole by adjustment canopy body position.
4. protect shield to reset: after canopy body region mesh sheet and anchor bolt construction complete, for convenience of the carrying out of follow-up supporting operation, to need protection shield to retract supporting position.First, shrink hydraulic jack 4 and reduce canopy body 1, make canopy body 1 depart from country rock; Then by starting horizontal power system 9, canopy body 1 is pulled out supporting position.
5., along with TBM constantly tunnels forward, complexity is carried out above-mentioned steps and is constantly carried out initial support operation.
By the utilization of this TBM supporting operation packaged type protection shield, unsupported area mesh sheet and anchor bolt construction can carry out under the protection of canopy body, can effectively prevent unsupported area from caving in and falling rocks, available protecting supporting construction personnel and plant equipment.Meanwhile, within the scope of canopy body, the pre-splicing work of mesh sheet and TBM tunnel and can carry out simultaneously, can improve once supporting efficiency.
Claims (10)
1. the removable protection shield of TBM supporting operation, it is characterized in that, comprise the canopy body (1) identical with tunnel radius of curvature, canopy body (1) offers the jumbolter hole (15) for anchor bolt construction, the bottom of canopy body (1) is connected with some support columns (2), the outside of support column (2) is arranged with column sleeve (3), and support column (2) can slide up and down in column sleeve (3), the bottom of column sleeve (3) is connected to workbench (5), the middle part of canopy body (1) is connected with the hydraulic jack (4) that canopy body (1) can be made to move up and down, hydraulic jack (4) bottom is connected to the ear seat be fixed on column sleeve (3), ear seat is positioned at the top of workbench (5), the bottom of workbench (5) is provided with the road wheel (6) coordinated with two tracks (8) being fixed on ground, workbench (5) is also connected with for making workbench (5) in the horizontal power system (9) of the upper motion of track (8).
2. the removable protection shield of a kind of TBM supporting operation according to claim 1; it is characterized in that; canopy body (1) is spliced by some curved plates identical with tunnel radius of curvature (10); curved plate (10) is provided with preformed hole, interts and be provided with the steel pipe (11) be stitched together by curved plate (10) in preformed hole.
3. the removable protection shield of a kind of TBM supporting operation according to claim 1, is characterized in that, described jumbolter hole (15) has two, is symmetrically distributed in the both sides of canopy body (1).
4. the removable protection shield of a kind of TBM supporting operation according to claim 1; it is characterized in that; horizontal power system (9) comprises the fixed frame be connected with workbench (5); motor (12) is provided with in fixed frame; the output of motor (12) is connected with worm-gear speed reducer (13), and the output of worm-gear speed reducer (13) is connected with driving wheel (14).
5. the removable protection shield of a kind of TBM supporting operation according to claim 1; it is characterized in that; the both sides of workbench (5) are connected with side plate, and the inner side of side plate is provided with for preventing protection wheel (7) protecting shield to derail in the process of walking.
6. the removable protection shield of a kind of TBM supporting operation according to claim 1, is characterized in that, is provided with the steel plate for preventing track (8) to be out of shape between two tracks (8).
7. the removable protection shield of a kind of TBM supporting operation according to claim 1, is characterized in that, described support column (2) has four, is evenly distributed on the both sides of canopy body (1) bottom; Described road wheel (6) has four, is evenly distributed on the both sides of workbench (5) bottom.
8. a using method for the removable protection shield of TBM supporting operation according to claim 1, is characterized in that, comprise the following steps:
Step 1: removable protection shield is rested in tunnel supporting region, carry out mesh sheet splicing work on canopy body top;
Step 2: after removable protection shield rear country rock discloses, by horizontal power system (9), removable protection shield is pushed into country rock and discloses district, then, to liquefaction oil cylinder (4) pressurization, by support column (2), canopy body (1) is promoted until press close to excavate scar, carry out mesh sheet installation;
Step 3: after mesh sheet installation, keeps removable protection shield motionless, and adopt jumbolter to carry out bolthole construction by the jumbolter hole (15) on canopy body (1), bolthole carries out rockbolt installation after having constructed.
9. the using method of the removable protection shield of TBM supporting operation according to claim 8; it is characterized in that; bolthole construction and rockbolt installation process in; after a rockbolt installation completes, carried out bolthole construction and the rockbolt installation of other position by the position of horizontal power system (9) adjustment canopy body (1).
10. the using method of the removable protection shield of TBM supporting operation according to claim 8; it is characterized in that; also comprise step 4: after canopy body region mesh sheet and anchor bolt construction complete; canopy body (1) is reduced by hydraulic jack (4); make canopy body (1) depart from country rock, then by horizontal power system (9), canopy body (1) is pulled out supporting position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510974640.7A CN105464683A (en) | 2015-12-22 | 2015-12-22 | TBM shoring operation movable shield and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510974640.7A CN105464683A (en) | 2015-12-22 | 2015-12-22 | TBM shoring operation movable shield and application method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105464683A true CN105464683A (en) | 2016-04-06 |
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| CN201510974640.7A Pending CN105464683A (en) | 2015-12-22 | 2015-12-22 | TBM shoring operation movable shield and application method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593502A (en) * | 2016-12-26 | 2017-04-26 | 枣庄联鑫实业有限责任公司 | Framework landing self-moving type front telescopic advanced supporting device |
| CN106640114A (en) * | 2017-02-23 | 2017-05-10 | 淮南矿业(集团)有限责任公司 | Safe temporary supporting device of mining TBM |
| CN108386219A (en) * | 2018-04-18 | 2018-08-10 | 招商局重庆交通科研设计院有限公司 | A kind of support system and operating method of tunnel support structure |
| CN109372557A (en) * | 2018-11-21 | 2019-02-22 | 中铁工程装备集团有限公司 | A kind of rock tunnel(ling) machine tunneling arc plate and its method for protecting support |
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| CN103573270A (en) * | 2013-08-02 | 2014-02-12 | 石家庄铁道大学 | TBM (Tunnel Boring Machine) arc-shaped top shield and method for carrying out surrounding rock supporting by using top shield |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106593502A (en) * | 2016-12-26 | 2017-04-26 | 枣庄联鑫实业有限责任公司 | Framework landing self-moving type front telescopic advanced supporting device |
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Application publication date: 20160406 |