CN102704967B - One prevents from intersecting large-section underground top board and to collapse method for leakage - Google Patents
One prevents from intersecting large-section underground top board and to collapse method for leakage Download PDFInfo
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- CN102704967B CN102704967B CN201210156911.4A CN201210156911A CN102704967B CN 102704967 B CN102704967 B CN 102704967B CN 201210156911 A CN201210156911 A CN 201210156911A CN 102704967 B CN102704967 B CN 102704967B
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- Prior art keywords
- steel strand
- top board
- many arc
- bitubular
- coupling
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 67
- 239000010959 steel Substances 0.000 claims abstract description 67
- 230000008878 coupling Effects 0.000 claims abstract description 56
- 238000010168 coupling process Methods 0.000 claims abstract description 56
- 238000005859 coupling reaction Methods 0.000 claims abstract description 56
- 239000011435 rock Substances 0.000 claims abstract description 17
- 239000003245 coal Substances 0.000 claims abstract description 7
- 229920003023 plastic Polymers 0.000 claims abstract description 4
- 239000004033 plastic Substances 0.000 claims abstract description 4
- 238000005553 drilling Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000004873 anchoring Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000008093 supporting effect Effects 0.000 abstract description 10
- 238000005065 mining Methods 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 239000012141 concentrate Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
One prevents from intersecting large-section underground top board and to collapse method for leakage, is applicable to construction of tunnel and coal mining underground passage engineering.Comprise many arc couplings, antiskid friction resistant ring washer, steel strand and lockset, many arc hookups are airtight, the inner symmetrical arc core structures for hollow circuit cylinder of upper surface.One end of steel strand is through the bitubular, the other end athwart roof bolting is stablized in rock stratum in country rock deep, design annular plastics packing ring between internal layer steel strand to concentrate to prevent steel strand contact portion stress, lockset is utilized to lock after applying high pretightening force to steel strand, coupling is anchored on chamber top board central region, greatly increase roof strata entire compression intensity, effective control large-section underground crushes and collapses and emits, supporting area is large, safety factor is high, structure is simply graceful, convenience quick for installation, easy processing, cost is low, effective, there is practicality widely.
Description
Technical field
The present invention relates to one to prevent from intersecting large-section underground top board and to collapse method for leakage, be particularly useful for intersecting in tunnel and coal road big cross section roof timbering.
Background technology
In construction of tunnel or mining supporting, the intersection large-section underground of formation is because quantity is large, scope is wide, pattern is many, and accident rate is high, becomes one of production scene problem needing solution badly.This kind of chamber common trait shows as: the unsettled area of top board is large, high and the stressed complexity of regional stress, top board collapse accident is many, especially combined for intersection big cross section thick-layer Compound Roof, mud stone or trickle type top board, blowing out under the Engineering Disturbances such as vibrations by contiguous work plane mining influence or contiguous tunnelling, adopt traditional support unit to arrange and easily cause top board even sudden the collapsing that significantly sink to emit accident, bury great potential safety hazard to field operation personnel.Generally speaking, on-the-spot conventional intersection large-section underground roof timbering method comprises two classes: slip casting+casting+whitewashing+U-shaped steel etc. and superposition anchor pole steel band supporting+single-point cable bolting, also replace steel band supporting with channel-section steel sometimes.The former is better to intersection big cross section Roof Control effect, but due to operation very complicated, inter process cooperation requires that the high and factors such as cost intensive affect, and except for except a small amount of permanent rock gangway chamber support, is generally difficult to promote in a large amount of coal road big cross section adopt; The latter can basic guarantee roof timbering safety under Engineering Disturbance little, the stability of cavern roof of impact and the situation such as buried depth is more shallow, but needed for support material costly, for the intersection large-section underground top board more and more in deep-well supporting with complex characteristic, under Engineering Disturbance, steel band is very easily torn, and channel-section steel control range is little, the supporting and protection structure that the more difficult formation of monomer anchor cable is good, can not effectively controlroof large deformation and collapse accident.
Summary of the invention
One. goal of the invention
The object of the invention is the deficiency existed for prior art, there is provided one to prevent from intersecting large-section underground top board to collapse method for leakage, it can effectively sink by controlroof, the intersection large-section underground roof rock after digging is made to transfer approximate three dimension stress to by bi-directional compression, increase the compressive strength of roof rock, prevent from intersection large-section underground top board from collapsing to emit, ensure the supporting safety in chamber intersection big cross section region.
Two. technical scheme
The preventing of the application is intersected the large-section underground top board method for leakage that collapses and is comprised many arc couplings 1, antiskid friction resistant ring washer 2, steel strand 3 and lockset 4.One group of steel strand 3 one end top board be anchored in deep and stablize in rock stratum athwart, the other end, through a pair bitubular in many arc couplings 1, is locked with lockset 4 after applying high pretightening force; Another group steel strand 3 one end top board be anchored in deep and stablize in rock stratum athwart, the other end through another in many arc couplings 1 to the bitubular, the two groups of steel strand 3 in front and back have antiskid friction resistant ring washer 2 to separate at many arc coupling 1 interior contact portion, lock after applying high pretightening force with lockset 4.Described many arc couplings 1, from this coupling upper surface direction vertical, for on the basis of a rectangle, four angles are the thin board type steel work of identical circular arc chamfer shape, a pair straight-through bitubular runs through a pair relative coupling side straight flange, another runs through another side straight flange to relative coupling to the straight-through bitubular, many arc coupling 1 upper surfaces are plane-sealed structure, soffit is the plane structure containing open circles, inner containing a hollow circuit cylinder, hollow circuit cylinder is positioned at many arc coupling 1 soffit central region, hollow circuit cylinder top is through to the region that the straight-through bitubular is crossing with two.The plastic washer that antiskid friction resistant ring washer 2 is made for macromolecular material.Steel strand 3 diameter is 15-21mm, and steel strand 3 length is 6-12m.Concrete implementation step is: tunnel or underground coal mine intersect after large-section underground digging, anchor cable rig is utilized to beat angling hole to top board, one end of steel strand 3 is stretched into and holes interior and utilize resin anchoring agent to stablize in rock stratum by steel strand 3 end anchorage in deep, stretch out steel strand 3 outside aperture from many arc couplings 1 in a pair bitubular a end of monotubular 5 through b end, and to lock with lockset 4 after utilizing anchor cable tensioning machine tool to apply high pretightening force, equally, punching at the intersection large-section underground top board other end and steel strand 3 one end is anchored in deep stablizes in rock stratum, stretch out steel strand 3 outside aperture from many arc couplings 1 in the bitubular c end of monotubular 6 hold through d, and lock with lockset 4 after utilizing anchor cable tensioning machine tool to apply high pretightening force, adjust many arc coupling 1 positions in locking process, make many arc couplings 1 be anchored on chamber top board central region, antiskid friction resistant ring washer 2 is installed on many arc coupling 1 internal steel twisted wire 3 surfaces, and according to same mounting method, by one end in other two steel strand 3 through top board internal drilling, the other end passes through another e to monotubular in the bitubular 7 in many arc couplings 1 and holds and f end, another root one end in two steel strand 3 is through top board internal drilling, the g that the other end passes through monotubular 8 in the bitubular in many arc couplings 1 holds h end, from many arc coupling 1 internal steel twisted wire 3 positions, above two steel strand 3 contact surfaces two steel strand 3 installed below being in position install above, contact area is separated by antiskid friction resistant ring washer 2, and lock with lockset 4 after utilizing anchor cable tensioning machine tool to apply high pretightening force.
Three. technique effect
One of the present invention prevents from intersecting large-section underground top board and to collapse method for leakage, is applicable to construction of tunnel and coal mining underground passage engineering.Comprise many arc couplings, antiskid friction resistant ring washer, steel strand and lockset, many arc couplings are that upper surface is airtight, and inside is the symmetrical arc core structure of hollow circuit cylinder.One end of steel strand is through the bitubular, the other end athwart roof bolting is stablized in rock stratum in country rock deep, design ring washer between internal layer steel strand to concentrate to prevent steel strand contact portion stress, lockset is utilized to lock after applying high pretightening force to steel strand, coupling is anchored on chamber top board central region, greatly increase roof strata entire compression intensity, effective control large-section underground crushes and collapses and emits, supporting area is large, safety factor is high, structure is simply graceful, convenience quick for installation, easy processing, cost is low, supporting effect is good, there is practicality widely.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
Accompanying drawing 2 is cross-sectional view of Fig. 1.
Detailed description of the invention
Below in conjunction with the embodiment of in accompanying drawing, the invention will be further described:
One of the present invention prevents from intersecting large-section underground top board and to collapse method for leakage, uses many arc couplings 1, antiskid friction resistant ring washer 2, steel strand 3 and lockset 4 that macromolecular material is made.Described many arc couplings 1, from this coupling upper surface direction vertical, for on the basis of a rectangle, four angles are the thin board type steel work of identical circular arc unfilled corner shape, a pair straight-through bitubular runs through a pair relative coupling side straight flange, another runs through another side straight flange to relative coupling to the straight-through bitubular, many arc coupling 1 upper surfaces are plane-sealed structure, soffit is the plane structure containing open circles, inner containing a hollow circuit cylinder, hollow circuit cylinder is positioned at many arc coupling 1 soffit central region, hollow circuit cylinder top is through to the region that the straight-through bitubular is crossing with two.Concrete supporting step is: tunnel or underground coal mine intersect after large-section underground digging, anchor cable rig is utilized to beat angling hole to top board, one end of steel strand 3 is stretched into and holes interior and utilize resin anchoring agent to stablize in rock stratum by steel strand 3 end anchorage in deep, stretch out steel strand outside aperture from many arc couplings 1 in a pair bitubular a end of monotubular 5 through b end, and to lock with lockset 4 after utilizing anchor cable tensioning machine tool to apply high pretightening force, equally, punching at the intersection large-section underground top board other end and a steel strand one end is anchored in deep stablizes in rock stratum, this holds the c of relative opposite side to hold with a to hold the d of same side to hold through with a to another monotubular 6 in the bitubular from many arc couplings 1 to stretch out steel strand outside aperture, and lock with lockset 4 after utilizing anchor cable tensioning machine tool to apply high pretightening force, adjust many arc coupling 1 positions in locking process, make many arc couplings 1 be anchored on chamber top board central region, antiskid friction resistant ring washer 2 is installed on the many inner steel strand surfaces of arc coupling 1, and according to same mounting method, by one end in other two steel strand 3 through top board internal drilling, the other end passes through another e to monotubular in the bitubular 7 in many arc couplings 1 and holds and f end, another root one end in two steel strand 3 is through top board internal drilling, from described in many arc couplings 1, another holds the g of relative opposite side to hold with e to hold the h of same side to hold through with e to another monotubular 8 bitubular other end, from many arc coupling 1 internal steel strand locations, above two steel strand 3 contact surfaces two steel strand 3 installed below being in position install above, contact area is separated by antiskid friction resistant ring washer 2, and lock with lockset 4 after utilizing anchor cable tensioning machine tool to apply high pretightening force.The plastic washer that antiskid friction resistant ring washer 2 is made for macromolecular material, steel strand 3 diameter is 15-21mm, and steel strand 3 length is 6-12m.
Claims (4)
1. one kind prevents from intersecting large-section underground top board and to collapse method for leakage, it comprises many arc couplings (1), antiskid friction resistant ring washer (2), steel strand (3) and lockset (4), one group of steel strand (3) one end top board be anchored in deep and stablize in rock stratum athwart, the other end, through a pair bitubular in many arc couplings (1), is locked with lockset (4) after applying high pretightening force, another group steel strand (3) one end top board be anchored in deep and stablize in rock stratum athwart, the other end through another in many arc couplings (1) to the bitubular, the two groups of steel strand (3) in front and back have antiskid friction resistant ring washer (2) to separate at many arc coupling (1) interior contact portion, lock with lockset (4) after applying high pretightening force, described many arc couplings (1), from this coupling upper surface direction vertical, for on the basis of a rectangle, four angles are the thin board type steel work of identical circular arc unfilled corner shape, a pair straight-through bitubular runs through a pair relative coupling side straight flange, another runs through another side straight flange to relative coupling to the straight-through bitubular, many arc coupling (1) upper surfaces are plane-sealed structure, soffit is the plane structure containing open circles, inner containing a hollow circuit cylinder, hollow circuit cylinder is positioned at many arc coupling (1) soffit central region, hollow circuit cylinder top is through to the region that the straight-through bitubular is crossing with two.
2. one according to claim 1 prevents from intersecting large-section underground top board and to collapse method for leakage, it is characterized in that: the plastic washer that described antiskid friction resistant ring washer (2) is made for macromolecular material.
3. one according to claim 1 prevents from intersecting large-section underground top board and to collapse method for leakage, and it is characterized in that: described steel strand (3) diameter is 15-21mm, steel strand (3) length is 6-12m.
4. application rights requires that one described in 1-3 prevents from intersecting large-section underground top board and to collapse method for leakage, it is characterized in that: tunnel or underground coal mine intersect after large-section underground digging, anchor cable rig is utilized to beat angling hole to top board, one end of a steel strand (3) is stretched into and holes interior and utilize resin anchoring agent to stablize in rock stratum by steel strand (3) end anchorage in deep, stretch out steel strand outside aperture from many arc couplings (1) in a pair bitubular a end of monotubular (5) hold through b, and lock with lockset (4) after utilizing anchor cable tensioning machine tool to apply high pretightening force, equally, punching at the intersection large-section underground top board other end and a steel strand one end is anchored in deep stablizes in rock stratum, this holds the c of relative opposite side to hold with a to hold the d of same side to hold through with a to another monotubular (6) in the bitubular from many arc couplings (1) to stretch out steel strand outside aperture, and lock with lockset (4) after utilizing anchor cable tensioning machine tool to apply high pretightening force, adjust many arc coupling (1) positions in locking process, make many arc couplings (1) be anchored on chamber top board central region, antiskid friction resistant ring washer (2) is installed on the many inner steel strand surfaces of arc coupling (1), and according to same mounting method, by one end in other two steel strand (3) through top board internal drilling, the other end passes through another e to monotubular in the bitubular (7) in many arc couplings (1) and holds and f end, another root one end in two steel strand (3) is through top board internal drilling, from described in many arc couplings (1), another holds the g of relative opposite side to hold with e to hold the h of same side to hold through with e to another monotubular (8) the bitubular other end, from many arc coupling (1) internal steel strand locations, above two steel strand (3) contact surfaces two steel strand (3) of installing below being in position install above, contact area is separated by antiskid friction resistant ring washer (2), and lock with lockset (4) after utilizing anchor cable tensioning machine tool to apply high pretightening force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210156911.4A CN102704967B (en) | 2012-05-21 | 2012-05-21 | One prevents from intersecting large-section underground top board and to collapse method for leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210156911.4A CN102704967B (en) | 2012-05-21 | 2012-05-21 | One prevents from intersecting large-section underground top board and to collapse method for leakage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102704967A CN102704967A (en) | 2012-10-03 |
| CN102704967B true CN102704967B (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210156911.4A Expired - Fee Related CN102704967B (en) | 2012-05-21 | 2012-05-21 | One prevents from intersecting large-section underground top board and to collapse method for leakage |
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| Country | Link |
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| CN (1) | CN102704967B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100282A (en) * | 2014-06-17 | 2014-10-15 | 山西晋城无烟煤矿业集团有限责任公司 | Method for driving anchor cables to maintain triangular area of roadways |
| CN112523791B (en) * | 2020-12-25 | 2024-05-10 | 江苏宝利路面材料技术有限公司 | Annular anchor rope supporting system for reinforcing rock wall in highway small clear distance tunnel |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2585918Y (en) * | 2002-07-02 | 2003-11-12 | 柳州市威尔姆预应力有限公司 | Integrally butt group anchor coupler |
| CN1594834A (en) * | 2004-07-12 | 2005-03-16 | 中国矿业大学 | Truss supporting technology for ingredient top slope deformation control |
| CN2708037Y (en) * | 2004-07-09 | 2005-07-06 | 中国矿业大学 | Double tensile steel strand coupler |
| RU2281398C2 (en) * | 2004-06-09 | 2006-08-10 | Виктор Евгеньевич Ануфриев | Tightening device for rope anchoring bolt |
| CN101302937A (en) * | 2008-02-26 | 2008-11-12 | 中国矿业大学(北京) | Girders anchorage cable arcuated connection locking device |
| CN201236719Y (en) * | 2008-02-26 | 2009-05-13 | 中国矿业大学(北京) | Arc-connection locker for girder anchor cable |
| DE102008006236A1 (en) * | 2008-01-25 | 2009-07-30 | Friedr. Ischebeck Gmbh | Injection head for injection drill anchor |
| CN201318027Y (en) * | 2008-12-12 | 2009-09-30 | 董光辉 | Stretching prestressed strand coupler |
| CN102121389A (en) * | 2010-06-02 | 2011-07-13 | 中国矿业大学(北京) | Method for preventing and treating roof falling and side collapsing of coal roadway surrounding rock by anchor rope truss |
| CN102425439A (en) * | 2012-01-17 | 2012-04-25 | 中国矿业大学 | Method for reinforcing bidirectional staged stretched anchor cable of preset steel strand |
| CN202731955U (en) * | 2012-05-21 | 2013-02-13 | 严红 | Device for preventing roof of crossed great section cave dwelling room from collapsing |
-
2012
- 2012-05-21 CN CN201210156911.4A patent/CN102704967B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2585918Y (en) * | 2002-07-02 | 2003-11-12 | 柳州市威尔姆预应力有限公司 | Integrally butt group anchor coupler |
| RU2281398C2 (en) * | 2004-06-09 | 2006-08-10 | Виктор Евгеньевич Ануфриев | Tightening device for rope anchoring bolt |
| CN2708037Y (en) * | 2004-07-09 | 2005-07-06 | 中国矿业大学 | Double tensile steel strand coupler |
| CN1594834A (en) * | 2004-07-12 | 2005-03-16 | 中国矿业大学 | Truss supporting technology for ingredient top slope deformation control |
| DE102008006236A1 (en) * | 2008-01-25 | 2009-07-30 | Friedr. Ischebeck Gmbh | Injection head for injection drill anchor |
| CN101302937A (en) * | 2008-02-26 | 2008-11-12 | 中国矿业大学(北京) | Girders anchorage cable arcuated connection locking device |
| CN201236719Y (en) * | 2008-02-26 | 2009-05-13 | 中国矿业大学(北京) | Arc-connection locker for girder anchor cable |
| CN201318027Y (en) * | 2008-12-12 | 2009-09-30 | 董光辉 | Stretching prestressed strand coupler |
| CN102121389A (en) * | 2010-06-02 | 2011-07-13 | 中国矿业大学(北京) | Method for preventing and treating roof falling and side collapsing of coal roadway surrounding rock by anchor rope truss |
| CN102425439A (en) * | 2012-01-17 | 2012-04-25 | 中国矿业大学 | Method for reinforcing bidirectional staged stretched anchor cable of preset steel strand |
| CN202731955U (en) * | 2012-05-21 | 2013-02-13 | 严红 | Device for preventing roof of crossed great section cave dwelling room from collapsing |
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| Publication number | Publication date |
|---|---|
| CN102704967A (en) | 2012-10-03 |
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Effective date of registration: 20150723 Address after: 221116 Xuzhou Province,, China University of Mining and Technology, the southern loop of science and Technology Department of the three Applicant after: China University of Mining & Technology Address before: 100083 Beijing City, Haidian District Institute of Rutosids China University of Mining and Technology No. 11 (Beijing) Baoyuan apartment A1-17032 Applicant before: Yan Hong |
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