CN102182483A - Semi-rigid abnormal beam anchor cable truss roadway supporting system - Google Patents

Semi-rigid abnormal beam anchor cable truss roadway supporting system Download PDF

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Publication number
CN102182483A
CN102182483A CN2011101045754A CN201110104575A CN102182483A CN 102182483 A CN102182483 A CN 102182483A CN 2011101045754 A CN2011101045754 A CN 2011101045754A CN 201110104575 A CN201110104575 A CN 201110104575A CN 102182483 A CN102182483 A CN 102182483A
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China
Prior art keywords
anchor
semi
rigid
shaped
anchor cable
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Pending
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CN2011101045754A
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Chinese (zh)
Inventor
王�琦
李术才
王汉鹏
李为腾
李智
江贝
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Shandong University
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Shandong University
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Priority to CN2011101045754A priority Critical patent/CN102182483A/en
Publication of CN102182483A publication Critical patent/CN102182483A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a semi-rigid abnormal beam anchor cable truss roadway supporting system. A metal net is paved on the surface of a roadway, a semi-rigid abnormal beam anchor cable truss is arranged at a coal-rock roof or a roadway side, the semi-rigid abnormal beam anchor cable truss is formed by abnormal beams with semi-rigid nodes and anchor cables or anchor rods, and each abnormal beam is provided with a plurality of anchor cables or anchor rods; the anchor cables and anchor rods are anchored into a rock layer by passing through the abnormal beams and the metal net and apply a prestress to form an extrusion and annular protection function on surrounding rocks; and outer anchor ends of the anchor cables and anchor rods are provided with trays and locks, the trays and the locks make the end heads of the anchor cables or anchor rods tightly matched with the abnormal beams. The invention has the advantages that: (1), the protective surface area is large, the rigidity is high, stability is not easy to loss, and the integrality of the supporting system is ensured; (2), a steel material is saved, the cost is reduced, and the efficiency is increased; (3), the strength is high, and the regulation space of the whole supporting performance is large; and (4) the semi-rigid nodes can play a role of better flexible yield, and the stability and the safety of the whole supporting system are ensured.

Description

Semi-rigid special-shaped beam anchor cable truss roadway support system
Technical field
The present invention relates to a kind of mine timbering field, particularly a kind of semi-rigid special-shaped beam anchor cable truss roadway support system.
Background technology
The colliery tunnel support technology is the key technology in the coal mining at present.Keep adjoining rock stability, preventing the tunnel excessive deformation and destroying is the necessary condition that realizes mine safety, High-efficient Production.Along with mine develops both in depth and in breadth, the roadway support problem shows more and more outstandingly.
At present, BOLTING TECHNOLOGY TO COAL ROADWAY reaches its maturity, and the bolt support scope is applied to IV, V level country rock gradually from I, II, III level country rock.But under these complex conditions particularly for the tunnel of deep high-ground stress large span, roadway roof absciss layer distortion especially severe, only can't the effective support top board by the anchor shaft anchor cable institute that uses at present, top board integral body often takes place help two walls to shear the phenomenon of landing along the lane; Owing to be subjected to high stress, portion of the group distortion of heading is also very big, usually causes the tunnel shrinkage strain to cause the tunnel to use in addition.Particularly for gob side entry driving, the high-performance anchor pole combination supporting technology of using also seems powerless at present.The deflection of lane group is the coal column lateral wall particularly, at the beginning of the pick lane tangible distortion is just arranged, and to recovery phase, deflection reaches more than 70% of total deformation usually, and it is nearly 2/3 that section shrinks, and the tunnel can't be used, even causes security incident.Many work planes are had to stop production and are overhauled the tunnel or dig the tunnel in addition, and not only support cost is very high, and driving speed is low, and brings a lot of potential safety hazards, seriously restricts the quick propelling of coal-face and the raising of mine output and benefit.
Summary of the invention
The objective of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of supporting intensity height is provided, safe, Denver Nuggets speed is fast, when particularly above back fragmentation or top board, having structural belt or absciss layer, can well control top board, improve the supporting stress, avoid the semi-rigid special-shaped beam anchor cable truss roadway support system of occurrence of large-area roof fall accident.
For achieving the above object, the present invention adopts following technical proposals:
A kind of semi-rigid special-shaped beam anchor cable truss roadway support system, be equipped with wire lath on surface, described tunnel, help in coal rock roof plate or lane and to be provided with semi-rigid special-shaped beam anchor cable truss, described semi-rigid special-shaped beam anchor cable truss is made up of the special-shaped beam that has semi-rigid node and anchor cable or anchor pole, and every profiled beam is furnished with several anchor cables or anchor pole; Described anchor cable or anchor pole pass described special-shaped beam and wire lath anchors in the rock stratum, and apply prestressing force, country rock is formed the extruding pocket protect effect; The outer anchor end of described anchor cable or anchor pole is equipped with and makes anchor cable or termination point of anchor rod and close-fitting pallet of special-shaped beam and lockset.
Described special-shaped beam section is " II " shape, and this abnormal shape beam is by the web of vertical setting and constitute to the edge of a wing that is provided with in length and breadth.
Described semi-rigid node is connected with special-shaped beam by high-strength bolt, and semi-rigid node is provided with the anchor cable hole for anchor cable or anchor pole connection usefulness.
Described pallet is the wedge shape pallet.
The present invention has the following advantages:
1. the semi-rigid special-shaped beam of support system is compared general steel channel beam, steel I-beam, it is big to protect surface area, the rigidity height, be difficult for unstability, the more effective transmission anchor shaft anchor cable prestressing force of energy is in top board or lane group, surrouding rock deformation can be controlled in the allowed band, avoid causing the bearing capacity forfeiture of country rock itself, thereby guarantee the globality of support system because of excessive deformation.
2. the semi-rigid special-shaped beam of support system is compared steel channel beam, steel I-beam, under the situation that identical supporting intensity requires, has clear superiority aspect economy, saves steel, reduces cost, and increases the benefit.
3. the supporting intensity height of support system, it is big that whole supporting performance is regulated the space, semi-rigid special-shaped beam and anchor pole, anchor cable are used, can carry out effective supporting to the tunnel in conjunction with parameters such as the quantity of the special-shaped beam size of on-the-spot geological condition adjustment and anchor pole and anchor cable, models to carry out the coupling of mechanical property.
4. the semi-rigid node of support system can play good flexibility and allow the effect of pressing, parameters such as the quantity by changing semi-rigid node, position, length can be regulated its flexible yielding property energy, adjustable space is big, this structure can play the pressure effect that effectively allows, after the support system bearing capacity reaches certain limit, allow the tunnel to produce certain deformation with release pressure.The coupling yield supporting has guaranteed the stability and safety of whole support system.
Description of drawings
Fig. 1 is a tunnel of the present invention example structure schematic diagram;
Fig. 2 is Fig. 1 vertical view;
Fig. 3 is that the semi-rigid profiled beam anchor cable of the present invention truss is faced structure chart;
Fig. 4 is Fig. 3 vertical view;
Fig. 5 is the special-shaped girder construction enlarged drawing of the present invention;
Wherein, 1. anchor pole, 2. anchor cable, 3. special-shaped beam, 4. wire lath, 5. semi-rigid node, 6. pallet and lockset, 7. steel band, 8. high-strength bolt, 9. anchor cable hole, 10. web, 11. edges of a wing.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Shown in Fig. 1-5, lay wire lath 4 on the surface, tunnel, special-shaped beam 3 and steel band 7 are set under coal rock roof plate at interval, anchor cable 2 passes special-shaped beam 3 and wire lath 4 anchors in the rock stratum, anchor cable 2 stretch-draw also link to each other by pallet and lockset 6 with special-shaped beam 3 and semi-rigid node 5 thereof, form prestressing force, top board is formed the extruding pocket protect effect.When the country rock situation was relatively poor, sample is helped in the lane can be provided with special-shaped beam 3 when (being called for short lane group) helped in tunnel two, with anchor pole 1 or the anchor cable 2 fixing top group supporting intensity coupling couplings that realize, controlled surrouding rock deformation jointly.Described anchor cable 2 or anchor pole 1 outer anchor end are equipped with and make anchor cable 2 or anchor pole 1 termination and special-shaped beam 3 close-fitting pallets and lockset 6, and pallet is the wedge shape pallet.
Special-shaped beam 3 is connected by high-strength bolt 8 with semi-rigid node 5.Wherein, special-shaped beam section is " II " shape, and special-shaped beam is made of the web 10 of vertical setting and the edge of a wing 11 of horizontally set; Leave anchor cable hole 9 on the semi-rigid node 5 and connect usefulness for anchor cable.
This support system is applicable to the drift section of different shape.

Claims (4)

1. semi-rigid special-shaped beam anchor cable truss roadway support system, it is characterized in that: be equipped with wire lath on surface, described tunnel, help in coal rock roof plate or lane and to be provided with semi-rigid special-shaped beam anchor cable truss, described semi-rigid special-shaped beam anchor cable truss is made up of the special-shaped beam that has semi-rigid node and anchor cable or anchor pole, and every profiled beam is furnished with several anchor cables or anchor pole; Described anchor cable or anchor pole pass described special-shaped beam and wire lath anchors in the rock stratum, and apply prestressing force, country rock is formed the extruding pocket protect effect; The outer anchor end of described anchor cable or anchor pole is equipped with and makes anchor cable or termination point of anchor rod and close-fitting pallet of special-shaped beam and lockset.
2. semi-rigid special-shaped beam anchor cable truss roadway support according to claim 1 system, it is characterized in that: described special-shaped beam section is " II " shape, and this abnormal shape beam is made of the web of vertical setting and the edge of a wing of horizontally set.
3. semi-rigid special-shaped beam anchor cable truss roadway support according to claim 1 system, it is characterized in that: described semi-rigid node is connected with special-shaped beam by high-strength bolt, and semi-rigid node is provided with the anchor cable hole that connects usefulness for anchor cable or anchor pole.
4. semi-rigid special-shaped beam anchor cable truss roadway support according to claim 1 system, it is characterized in that: described pallet is the wedge shape pallet.
CN2011101045754A 2011-04-26 2011-04-26 Semi-rigid abnormal beam anchor cable truss roadway supporting system Pending CN102182483A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011101045754A CN102182483A (en) 2011-04-26 2011-04-26 Semi-rigid abnormal beam anchor cable truss roadway supporting system

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Application Number Priority Date Filing Date Title
CN2011101045754A CN102182483A (en) 2011-04-26 2011-04-26 Semi-rigid abnormal beam anchor cable truss roadway supporting system

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518459A (en) * 2011-12-15 2012-06-27 湖南科技大学 High-strength anchor rope steel channel beam capable of yielding automatically for deep well coal roadways
CN102606181A (en) * 2012-03-19 2012-07-25 中国矿业大学 Hyperstatic scour prevention four-dimensional roadway support device and support method thereof
CN102704965A (en) * 2012-05-21 2012-10-03 严红 Method for preventing tunnel top plate collapse risk caused by severe mining
CN102817620A (en) * 2012-08-13 2012-12-12 大同煤矿集团有限责任公司 Method for supporting ultra-thick and fluffy coal roadway
CN103075165A (en) * 2013-01-10 2013-05-01 中国矿业大学(北京) Composite supporting method of vertical beam of coal road
CN103422869A (en) * 2013-08-22 2013-12-04 山东科技大学 Jet grouting and anchoring comprehensive construction method of soft rock tunnel
CN103883340A (en) * 2014-02-26 2014-06-25 山东科技大学 Mining anchoring steel belt and roadway top plate anchor rod supporting method
CN104453964A (en) * 2014-12-24 2015-03-25 中国矿业大学(北京) Telescopic anchor cable truss device and method for supporting tunnel roof
CN104763425A (en) * 2015-02-03 2015-07-08 杨洪兴 Pressure relief presplitting blasting gob-side entry retaining pillar-free mining method
CN105604591A (en) * 2016-03-16 2016-05-25 重庆工程职业技术学院 Supporting method and structure for coal seam group
CN105626095A (en) * 2015-12-29 2016-06-01 大同煤矿集团有限责任公司 Small coal pillar protection roadway surrounding rock support method under condition of coal seam group mining hard roof
CN106089238A (en) * 2016-08-19 2016-11-09 淮南矿业(集团)有限责任公司 A kind of high seam driuing along goaf support system
CN106368721A (en) * 2016-12-02 2017-02-01 西南交通大学 Anti-rockburst supporting method in tunnel and anti-rockburst supporting system in tunnel
CN108007781A (en) * 2017-11-17 2018-05-08 山东科技大学 Roadway support mechanics simulation experiment system and its method under sound combined load
CN109441500A (en) * 2018-10-22 2019-03-08 山东新阳能源有限公司 A kind of girder truss advanced stand device and method for protecting support
CN109736856A (en) * 2018-12-18 2019-05-10 天地科技股份有限公司 A kind of stope drift active workings suspension device and method for protecting support
CN110242335A (en) * 2019-05-27 2019-09-17 山东科技大学 The passive coupling supporting system of large deformation stope drift active workings master and construction method
CN111075477A (en) * 2020-01-17 2020-04-28 中铁工程装备集团有限公司 Semi-rigid supporting structure system of large-section soft rock tunnel and construction method of semi-rigid supporting structure system

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518459B (en) * 2011-12-15 2014-04-30 湖南科技大学 High-strength anchor rope steel channel beam capable of yielding automatically for deep well coal roadways
CN102518459A (en) * 2011-12-15 2012-06-27 湖南科技大学 High-strength anchor rope steel channel beam capable of yielding automatically for deep well coal roadways
CN102606181A (en) * 2012-03-19 2012-07-25 中国矿业大学 Hyperstatic scour prevention four-dimensional roadway support device and support method thereof
CN102704965A (en) * 2012-05-21 2012-10-03 严红 Method for preventing tunnel top plate collapse risk caused by severe mining
CN102704965B (en) * 2012-05-21 2015-09-09 中国矿业大学 One prevents violent mining influence back to collapse method for leakage
CN102817620A (en) * 2012-08-13 2012-12-12 大同煤矿集团有限责任公司 Method for supporting ultra-thick and fluffy coal roadway
CN103075165A (en) * 2013-01-10 2013-05-01 中国矿业大学(北京) Composite supporting method of vertical beam of coal road
CN103075165B (en) * 2013-01-10 2015-09-02 中国矿业大学(北京) Vertical beam of coal road combined type supporting method
CN103422869A (en) * 2013-08-22 2013-12-04 山东科技大学 Jet grouting and anchoring comprehensive construction method of soft rock tunnel
CN103883340A (en) * 2014-02-26 2014-06-25 山东科技大学 Mining anchoring steel belt and roadway top plate anchor rod supporting method
CN104453964A (en) * 2014-12-24 2015-03-25 中国矿业大学(北京) Telescopic anchor cable truss device and method for supporting tunnel roof
CN104763425B (en) * 2015-02-03 2017-01-25 杨洪兴 Pressure relief presplitting blasting gob-side entry retaining pillar-free mining method
CN104763425A (en) * 2015-02-03 2015-07-08 杨洪兴 Pressure relief presplitting blasting gob-side entry retaining pillar-free mining method
CN105626095A (en) * 2015-12-29 2016-06-01 大同煤矿集团有限责任公司 Small coal pillar protection roadway surrounding rock support method under condition of coal seam group mining hard roof
CN105604591A (en) * 2016-03-16 2016-05-25 重庆工程职业技术学院 Supporting method and structure for coal seam group
CN106089238A (en) * 2016-08-19 2016-11-09 淮南矿业(集团)有限责任公司 A kind of high seam driuing along goaf support system
CN106368721A (en) * 2016-12-02 2017-02-01 西南交通大学 Anti-rockburst supporting method in tunnel and anti-rockburst supporting system in tunnel
CN106368721B (en) * 2016-12-02 2018-12-11 西南交通大学 A kind of anti-rock burst method for protecting support in tunnel and the anti-rock burst support system in tunnel
CN108007781A (en) * 2017-11-17 2018-05-08 山东科技大学 Roadway support mechanics simulation experiment system and its method under sound combined load
CN109441500A (en) * 2018-10-22 2019-03-08 山东新阳能源有限公司 A kind of girder truss advanced stand device and method for protecting support
CN109736856A (en) * 2018-12-18 2019-05-10 天地科技股份有限公司 A kind of stope drift active workings suspension device and method for protecting support
CN109736856B (en) * 2018-12-18 2021-02-19 天地科技股份有限公司 Stoping roadway supporting device and supporting method
CN110242335A (en) * 2019-05-27 2019-09-17 山东科技大学 The passive coupling supporting system of large deformation stope drift active workings master and construction method
CN111075477A (en) * 2020-01-17 2020-04-28 中铁工程装备集团有限公司 Semi-rigid supporting structure system of large-section soft rock tunnel and construction method of semi-rigid supporting structure system

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