CN106968676A - The method that cavity is passed through in tunnelling - Google Patents

The method that cavity is passed through in tunnelling Download PDF

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Publication number
CN106968676A
CN106968676A CN201710189360.4A CN201710189360A CN106968676A CN 106968676 A CN106968676 A CN 106968676A CN 201710189360 A CN201710189360 A CN 201710189360A CN 106968676 A CN106968676 A CN 106968676A
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CN
China
Prior art keywords
filling
frame
cavity
bag
tunnelling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710189360.4A
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Chinese (zh)
Other versions
CN106968676B (en
Inventor
李洪涛
徐金海
苏赛
裴晓建
籍志强
张兵兵
张跟柱
史沁彬
闫晋峰
董飞
李小瑜
索浩钰
云开岳
王高峰
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China University of Mining and Technology CUMT
Shanxi Luan Environmental Energy Development Co Ltd
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China University of Mining and Technology CUMT
Shanxi Luan Environmental Energy Development Co Ltd
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Application filed by China University of Mining and Technology CUMT, Shanxi Luan Environmental Energy Development Co Ltd filed Critical China University of Mining and Technology CUMT
Priority to CN201710189360.4A priority Critical patent/CN106968676B/en
Publication of CN106968676A publication Critical patent/CN106968676A/en
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Publication of CN106968676B publication Critical patent/CN106968676B/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings
    • E21F15/005Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings
    • E21F15/02Supporting means, e.g. shuttering, for filling-up materials
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings
    • E21F15/02Supporting means, e.g. shuttering, for filling-up materials
    • E21F15/04Stowing mats; Goaf wire netting; Partition walls

Abstract

The invention discloses a kind of method that cavity is passed through in tunnelling, belong to tunnelling protection field, comprise the concrete steps that:When tunnelling runs into cavity, timely enclosing tunnel is aerated until pernicious gas is discharged using ventilation blower;Set up some groups of frames in advance in digging laneway;Laying fills bag, wire netting and plank successively from top to bottom above frame, each filling bag width is a construction stage, after the completion of laying, gib is used as using multigroup trellis supports plank, and lay filling bag, wire netting and the plank of next stage, using grouting pump auspicious rice material formation tunnel periphery is injected to filling bag, by filling the filling pipe between bag to filling bag periphery injection foam cement to the further closing of the peripheral cavity of filling bag when filling solidifies, the digging laneway that repeats the above steps is until cross over cavity.This method effectively forms outer layer foam cement cushion, auspicious rice material bearing bed and frame combining structure branch sheath three-layer protection to tunnel in cavity and ensures construction safety.

Description

The method that cavity is passed through in tunnelling
Technical field
The invention belongs to tunnelling protection field, and in particular to a kind of method that cavity is passed through in tunnelling.
Background technology
As China's economic is fast-developing, domestic, subway, highway tunnel growing day by day to demands such as its traffic, mineral resources The tunnelling in road, coal and metalliferous mine is difficult all the more because of the limitation of geological conditions, and especially coal underground driving, which runs into, adopts The negative effect that dead zone is caused to shaft production.
China is a country rich in coal and poor in oil, and coal is that coal still accounts for 70% in the main body energy of China, the disposable energy Left and right, it is contemplated that to the year two thousand fifty, will account for 50%, but total amount is current 2 times.Coal industry, is the weight of relation economic life line of the country Want basic industry.Coal resources have important strategic importance as the main energy sources of China in the development of the national economy.
As non-renewable energy resources, the reserves of coal be it is limited, how rational exploitation, it is not allow to neglect to reduce the wasting of resources Depending on the problem of.But there is coal mining in small colliery in many mining areas of China, and the heavy damage excellent mining areas of many atures of coal, Waste substantial amounts of coal resources.Restricted, coal mining in small colliery is backward in technique, managed improperly by regional economy, technical conditions, caused The mining area underground is set to form a large amount of goafs, severe constraints coal mining.Meanwhile, the coal seam after small coal mines destruction, greatly Ore deposit is difficult to reclaim, and serious destruction is brought to state coal resource and ecological environment.
Due to goaf top plate exposure, during tunnelling, goaf is by mining influence, goaf after tunnelling Country rock is difficult to control to, and goaf is difficult to supporting, meanwhile, substantial amounts of toxic and harmful gas, ponding have been remained in goaf seriously, and Goaf internal water accumulation, has been significantly greatly increased the difficulty of tunnelling and supporting, has had a strong impact on coal production.
If so using tunneling method after first filling, must be supplemented with Small Data Sets detection, close mapping scheme, Er Qiebi Lane could be dug after the fillers such as palpus are stable, is continued according to the time estimated influence working face that is likely to, it is unfavorable to shaft production. Therefore the method filled afterwards using first tunneling, can improve coal recovery rate and efficiency of construction.Tunnelling has been invented for this to pass through The method in cavity, problems can be solved very well.
The content of the invention
Part, of the invention to provide a kind of method that cavity is passed through in tunnelling in order to overcome the above-mentioned deficiencies of the prior art.
The present invention is achieved through the following technical solutions:A kind of protection structure that cavity is passed through for tunnelling, its Middle cavity includes solution cavity, chamber and goaf etc., and frame layer is provided with described cavity along tunnelling direction, described Frame layer is made up of some frames and connector, is fixed between frame by connector, on the outside of frame from inside to outside successively Provided with plank and filling bag, described plank is transversely arranged on frame by strip, and described filling bag, which is provided with, to be used to fill The pack hole of material.
Further, U-shaped shape is made using mining 11# I-steel in described frame.
Further, described connector is a diameter of 50mm steel pipe, and steel pipe is fixed with frame by U-shaped holding card.
Further, be additionally provided with wire netting between described plank and filling bag, wire netting size of mesh opening be 50mm × 50mm。
Further, described plank is staggered in frame layer.
Further, the material filled in described filling bag, in order to form bearing bed, fills bag for auspicious rice material Side front is provided with steam vent.
Further, it is overall length ± 100mm that the length of described filling bag, which is equal to frame, fills the both sides of bag width Face is provided with the clasp being connected with each other for filling bag.
Further, being provided between filling bag described at the top of the frame is used for the filling-foam cement towards on the outside of filling bag The foam cement of filling forms peripheral cushion on the outside of filling pipe, filling bag, and filling pipe is bundled on frame using wire.
Further, it also is provided with filling pipe between the filling bag described in frame both sides.
A kind of method that cavity is passed through in tunnelling, when roadway construction driving runs into cavity, needs timely enclosing tunnel, prevents Only empty balkstone inbreak, is aerated using ventilation blower, and clears up legacy in tunnel, is paved roadway floor, is used in combination The tunnelling that is used for described in claim 1 to claim 9 passes through the protection structure in cavity effectively to tunnel shape in cavity Into cushion, bearing bed and branch sheath three-layer protection, following steps are specifically included:
A. some groups of frames are set up in advance as one group of construction cell close to empty edge in digging laneway, between frame between Away from for 800mm, connected with steel tube between frame;
B. during frame canopy to cavity, in the top of frame, laying fills bag, wire netting and plank, the specification of plank successively from top to bottom Length × width × height is used for 2000mm × 100mm × 50mm;
C. after the completion of laying, multigroup frame and then is set up as gib below the plank behind upper one group of frame, this is more Spacing between group frame is to be connected with steel tube between 400mm, frame;
D. multigroup frame that the filling bag of laying next stage, wire netting, plank and above-mentioned steps c are set collectively forms supporting Layer, while being connected with each other between filling bag with the clasp with makes to be closely joined together between filling bag, while in filling bag Between insert filling pipe;
E. after the completion of the connection of filling bag, auspicious rice material into filling bag is injected by pack hole using grouting pump, steam vent is by sky Gas is discharged;
F. bag filling to be filled completes firm recession from the part frame in supporting region, is changed into the spacing between the frame of supporting region 800mm is to be used as next group of construction cell;
G. b~f steps are repeated until the 3rd filling bag filling is finished, by filling pipe to filling bag periphery filling foaming water Mud;
H. b~g steps are repeated and progressively tunnel supporting cavity until crossing over cavity.
The beneficial effects of the invention are as follows:This method effectively forms outer layer foam cement cushion, auspicious rice to tunnel in cavity Material bearing bed and frame combining structure branch sheath three-layer protection ensure construction safety;The present invention can effectively close cavity, prevent Leak out and toxic and harmful gas harm workers ' health in cavity;The material for filling filling inside bag is the height with high cost performance Molecule fire proofing material, effectively eliminates disaster hidden-trouble;Plank and wire netting can effectively prevent roof collapse, add construction safety system Number;These advantages substantially increase tunnelling efficiency.
Brief description of the drawings
Fig. 1 is front view of the present invention;
Fig. 2 is top view of the present invention;
Fig. 3 is left view of the present invention;
In figure, 1, frame, 2, plank, 3, wire netting, 4, connector, 5, filling bag, 6, clasp, 7, pack hole, 8, steam vent, 9, Filling pipe.
Embodiment
Below according to drawings and examples, the present invention is further described.
As shown in Figure 1 to Figure 3, a kind of protection structure that cavity is passed through for tunnelling, wherein cavity includes solution cavity, cave Room and goaf etc., are provided with frame layer, described frame layer is by some frames 1 along tunnelling direction in described cavity Constitute, be fixed between frame 1 by connector 4 with connector 4, the outside of frame 1 is sequentially provided with plank 2 and filled from inside to outside Bag 5 is filled out, described plank 2 is transversely arranged on frame 1 by strip, described filling bag 5 is provided with filling for packing material Filling perforation 7.
The frame 1 that the present invention is used is that U-shaped is made using mining 11# I-steel, and 11# I-steel has higher intensity It disclosure satisfy that the required supporting requirement of the present invention.
Further, described connector 4 is using a diameter of 50mm steel pipe, and steel pipe and frame 1 are solid by U-shaped holding card It is fixed, it is ensured that between each frame 1 and steel pipe and frame 1 connective stability.
In order to strengthen the intensity for resisting falling object, the present invention is additionally provided with wire netting between described plank 2 and filling bag 5 3, the size of mesh opening size of wire netting 3 used can be prevented effectively compared with falling objects such as ratchels to applying for 50mm × 50mm Workman person damages.
Described plank 2 is staggered in frame layer, and described interlaced arrangement plank 2 is arranged on first group of frame 1 And then arrange that a plank 2 makes this from second group of frame 1 in this upper side or downside of root plank 2 after strip plank 2 Formed and interlocked between a little planks 2.
The material of filling is auspicious rice material in order to forming bearing bed, auspicious rice material in filling bag 5 used in the present invention Water content is larger, while have certain microbubble structure, so allow compressive strain performance with certain in bearing load, can It is reasonably resistant to the possibility falling object at the top of cavity;Auspicious rice material is a kind of high macromolecule fire proofing material of cost performance simultaneously, is had Effect eliminates disaster hidden-trouble in cavity.
In order that filling bag 5 discharges the gas in filling baggy fabric 5 when filling auspicious rice material, in described filling bag 5 Side front is provided with venthole 8, and side of the filling bag 5 provided with venthole 8 is placed towards the position at the top of cavity.
In order to which frame layer is obtained on vertical working tunneling direction effective over the length of described filling bag 5 is equal to U-shaped overall length ± the 100mm of frame 1, while according to different empty of different sizes, the internal quantity of frame 1 needed in cavity is not Together, in order to realize all standing of multigroup frame 1, the two sides of the filling width of bag 5 are provided with for buckleing that filling bag 5 is connected with each other Ring 6.
In order to prevent sharp object from being damaged to filling bag 5, it is provided between the filling bag 5 described in the top of frame 1 For the filling pipe 9 towards the filling outside filling-foam cement of bag 5, filling pipe 9 can use steel pipe generation used in connection frame 1 Replace, the foam cement of the outside filling of filling bag 5 forms peripheral cushion, and filling pipe 9 is bundled on frame 1 using wire, Lay impact of the one layer of foam cement reduction peripheral objects to filling bag 5 in the outside for filling bag 5.
In order to which the speed and preferably covering that improve laying foam cement fill bag 5, in filling described in the both sides of frame 1 Fill out between bag 5 and also be provided with filling pipe 9.
A kind of method that cavity is passed through in tunnelling, when roadway construction driving runs into cavity, needs timely enclosing tunnel, prevents Only empty balkstone inbreak, is aerated using ventilation blower, and clears up legacy in tunnel, is paved roadway floor, is used in combination The tunnelling that is used for described in claim 1 to claim 9 passes through the protection structure in cavity effectively to tunnel shape in cavity Into cushion, bearing bed and branch sheath three-layer protection, following steps are specifically included:
A. some groups of frames 1 are set up in advance as one group of construction cell close to empty edge in digging laneway, between frame 1 Spacing is to be connected with steel tube between 800mm, frame 1, is fixed between steel pipe and frame 1 by U-shaped holding card;
B. during frame canopy to cavity, in the top of frame 1, laying fills bag 5, wire netting 3 and plank 2, plank 2 successively from top to bottom Specification use length × width × height for 2000mm × 100mm × 50mm;
C. after the completion of laying, the and then lower section frame of plank 2 behind last frame 1 of upper one group of construction cell away from tunnel If multigroup frame 1 is as gib, the spacing between this multigroup frame 1 is 400mm, the annexation between frame 1 and steel pipe With step a;
D. multigroup canopy that laying filling bag 5, wire netting 3, plank 2 and above-mentioned steps c are set on the frame 1 in gib region Frame 1 collectively forms branch sheath, while being connected with each other between filling bag 5 with the clasp 6 with makes to be close-coupled between filling bag 5 Together, while inserting filling pipe 9 between filling bag 5;
E. after the completion of filling bag 5 is connected, auspicious rice material, filling bag 5 are injected into filling bag 5 by pack hole 7 using grouting pump Fill order is carried out successively from tunnel to cavity, and filling bag 5, which is carried out, " to be hung two and fill one " i.e. often two fillings one of extension, steam vent 8 discharge air unnecessary in bag 5 is filled;
F. the filling of bag 5 to be filled is completed and the firm recession of the auspicious rice material in bag is from the part frame 1 in gib region, makes to face When supporting region frame 1 between spacing be changed into 800mm to be used as next group of construction cell;
G. b~f steps are repeated until the 3rd filling filling of bag 5 is finished, by filling after the auspicious rice material settling out in bag 5 to be filled The pre-buried periphery filling of 9 pairs of filling bags of filling pipe 5 between bag 5 is filled out, described filler foam cement should meet tunnel compression strength It is required that, improve the maximum filling operation to cavity with certain dilatancy;Due to the setting time and accelerator of foam cement Amount it is relevant, test to choose by different ratio and meet the proportioning parameter of site operation requirement, make foam cement external in filling Rapid solidification is molded, impact of the reduction peripheral objects to filling bag;
H. b~g steps are repeated and progressively tunnel supporting cavity until crossing over cavity.

Claims (10)

1. a kind of protection structure that cavity is passed through for tunnelling, wherein cavity includes solution cavity, chamber and goaf etc., it is special Levy and be:Frame layer is provided with described cavity along tunnelling direction, described frame layer is by some frames(1)And even Fitting(4)Composition, frame(1)Between pass through connector(4)It is fixed, frame(1)Outside is sequentially provided with plank from inside to outside (2)With filling bag(5), described plank(2)Frame is transversely arranged on by strip(1)On, described filling bag(5)Provided with use In the pack hole of packing material(7).
2. the protection structure according to claim 1 that cavity is passed through for tunnelling, it is characterised in that:Described frame (1)U-shaped shape is made using mining 11# I-steel.
3. the protection structure according to claim 1 that cavity is passed through for tunnelling, it is characterised in that:Described connection Part(4)It is a diameter of 50mm steel pipe, steel pipe and frame(1)Fixed by U-shaped holding card.
4. the protection structure according to claim 1 that cavity is passed through for tunnelling, it is characterised in that:Described plank (2)With filling bag(5)Between be additionally provided with wire netting(3), wire netting(3)Size of mesh opening is 50mm × 50mm.
5. the protection structure according to claim 1 that cavity is passed through for tunnelling, it is characterised in that:Described plank (2)It is staggered in frame layer.
6. the protection structure according to claim 1 that cavity is passed through for tunnelling, it is characterised in that:Described filling Bag(5)The material of interior filling, in order to form bearing bed, fills bag for auspicious rice material(5)Side front be provided with steam vent(8).
7. the protection structure according to claim 1 that cavity is passed through for tunnelling, it is characterised in that:Described filling Bag(5)Length be equal to frame(1)For overall length ± 100mm, bag is filled(5)The two sides of width are provided with for filling bag(5) The clasp of interconnection(6).
8. the protection structure according to claim 1 that cavity is passed through for tunnelling, it is characterised in that:In frame(1) Filling bag described in top(5)Between be provided be used for towards filling bag(5)The filling pipe of outside filling-foam cement(9), fill bag (5)The foam cement of outside filling forms peripheral cushion, filling pipe(9)Frame is bundled in using wire(1)On.
9. the protection structure according to claim 8 that cavity is passed through for tunnelling, it is characterised in that:In frame(1) The described filling bag of both sides(5)Between also be provided with filling pipe(9).
10. a kind of method that cavity is passed through in tunnelling, it is characterised in that:When roadway construction driving runs into cavity, need timely Enclosing tunnel, is prevented the balkstone inbreak in cavity, is aerated using ventilation blower, and clears up legacy in tunnel, paves lane Road bottom plate, and it is effective to sky to empty protection structure is passed through for tunnelling described in claim 9 to use claim 1 Tunnel forms cushion, bearing bed and branch sheath three-layer protection in hole, specifically includes following steps:
A. some groups of frames are set up in advance close to empty edge in digging laneway(1)It is used as one group of construction cell, frame(1)It Between spacing be 800mm, frame(1)Between connect with steel tube;
B. during frame canopy to cavity, in frame(1)Top from top to bottom successively laying filling bag(5), wire netting(3)And plank (2), plank(2)Specification use length × width × height for 2000mm × 100mm × 50mm;
C. after the completion of laying, and then upper one group of frame(1)Plank below(2)Lower section sets up multigroup frame(1)As interim Supporting, this multigroup frame(1)Between spacing be 400mm, frame(1)Between connect with steel tube;
D. the filling bag of laying next stage(5), wire netting(3), plank(2)The multigroup frame set with above-mentioned steps c(1)Altogether With supporting layer is constituted, while filling bag(5)Between use from clasp(6)Interconnection makes filling bag(5)Between closely connect Together, while in filling bag(5)Between insert filling pipe(9);
E. bag is filled(5)After the completion of connection, pack hole is passed through using grouting pump(7)To filling bag(5)The interior auspicious rice material of injection, row Stomata(8)Air is discharged;
F. bag to be filled(5)Filling completes part frame of the firm recession from supporting region(1), make supporting region frame(1)Between Spacing be changed into 800mm to be used as next group of construction cell;
G. b~f steps are repeated until the 3rd filling bag(5)Filling is finished, and passes through filling pipe(9)To filling bag(5)Periphery is filled Fill out foam cement;
H. b~g steps are repeated and progressively tunnel supporting cavity until crossing over cavity.
CN201710189360.4A 2017-03-27 2017-03-27 Method for tunneling through cavity Active CN106968676B (en)

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Cited By (5)

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CN107654238A (en) * 2017-09-15 2018-02-02 中国矿业大学 A kind of processing method for having dug fall of ground
CN109356164A (en) * 2018-10-30 2019-02-19 安溪起星晟汇机械科技有限公司 The deep basal pit safety guard of construction
CN109538216A (en) * 2018-12-21 2019-03-29 中铁二十五局集团第五工程有限公司 Pass through mined out and subsidence area constructing tunnel technique
CN109931077A (en) * 2019-03-29 2019-06-25 中南大学 Support system and its construction method for Segment rehabilitation
CN112081624A (en) * 2020-09-15 2020-12-15 中南大学 Mining environment reconstruction method based on waste tire recycling

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CN109356164A (en) * 2018-10-30 2019-02-19 安溪起星晟汇机械科技有限公司 The deep basal pit safety guard of construction
CN109538216A (en) * 2018-12-21 2019-03-29 中铁二十五局集团第五工程有限公司 Pass through mined out and subsidence area constructing tunnel technique
CN109931077A (en) * 2019-03-29 2019-06-25 中南大学 Support system and its construction method for Segment rehabilitation
CN112081624A (en) * 2020-09-15 2020-12-15 中南大学 Mining environment reconstruction method based on waste tire recycling

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