CN102852533A - High-strength three-dimensional support system of yielding type restriction concrete lagging jack - Google Patents
High-strength three-dimensional support system of yielding type restriction concrete lagging jack Download PDFInfo
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- CN102852533A CN102852533A CN2012103977955A CN201210397795A CN102852533A CN 102852533 A CN102852533 A CN 102852533A CN 2012103977955 A CN2012103977955 A CN 2012103977955A CN 201210397795 A CN201210397795 A CN 201210397795A CN 102852533 A CN102852533 A CN 102852533A
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- 239000004567 concrete Substances 0.000 title claims abstract description 67
- 239000011435 rock Substances 0.000 claims abstract description 31
- 230000015572 biosynthetic process Effects 0.000 claims abstract 2
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 9
- 239000003245 coal Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000009916 joint effect Effects 0.000 abstract 1
- 230000008093 supporting effect Effects 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000000003 hoof Anatomy 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
本发明公开了一种让压型约束砼拱架高强立体支护体系，其主要由约束砼拱架、让压节点、纵向梁、锚杆或锚索组成。其中，约束砼拱架为与巷道形状一致的封闭式结构，由约束砼通过套筒和让压节点连接组合而成，其间隔一定距离布置，并通过纵向梁连接；锚杆或锚索穿过纵向梁锚入岩层中，并施加预应力，对围岩形成挤压作用；拱架通过纵向梁与锚杆或锚索成为一个整体结构，其共同作用形成空间立体支护体系。本发明适用于深部软岩地下硐巷等地下工程支护，具有支护强度高、稳定性好、受力合理等优点并具有让压功能，能有效控制硐巷围岩的稳定性。
The invention discloses a high-strength three-dimensional support system for a yield-type constrained concrete arch, which is mainly composed of a restrained concrete arch, yield nodes, longitudinal beams, anchor rods or anchor cables. Among them, the constrained concrete arch frame is a closed structure consistent with the shape of the roadway, which is composed of constrained concrete connected through sleeves and yielding nodes, arranged at a certain distance and connected by longitudinal beams; anchor rods or anchor cables pass through The longitudinal beams are anchored into the rock formation and prestressed to form a compression effect on the surrounding rock; the arch frame forms an integral structure through the longitudinal beams and anchor rods or anchor cables, and their joint action forms a three-dimensional support system in space. The invention is suitable for underground engineering support such as underground tunnels in deep soft rock, and has the advantages of high support strength, good stability, reasonable stress, etc., and has a pressure-relieving function, and can effectively control the stability of surrounding rocks in tunnels.
Description
Technical field
The invention belongs to the underground engineering support field, particularly the underground cave in a kind of deep lane support system.
Background technology
Along with socioeconomic development, building of underground rock engineering such as coal mine roadway, road and rail tunnel and large hydropower station is more and more, the situation of the deep tunnel that faces and the large buried depth of chamber group, large section also increases gradually, and corresponding supporting problem is also more and more outstanding with it., supporting difficult characteristics large for the distortion of deep soft rock cavern, the support pattern of the large section of deep high stressed soft rock cavern carried out particular study both at home and abroad, experienced from common bolt-spary supports, sprayed steel fibre supporting, flexible steel bracket support to forms such as the spray of anchor net and flexible steel support combined supportings, but the effect of these support forms is not very desirable, Support Resistance is not enough mostly, and supporting intensity is not high.In general, the large deformation that tunnel and chamber group show under deep high stressed soft rock and fragmented rock body condition, difficult supporting problem, existing support technology is difficult to satisfy fully deep high stress tunnel and chamber group's supporting needs, has had a strong impact on production and the safety of deep rock mass engineering project.
Summary of the invention
The object of the invention is to overcome the deficiency of above-mentioned supporting aspect, provide a kind of supporting intensity high, the die mould that allows that is applicable to the underground engineering supports such as the underground cave of deep soft rock lane (tunnel, tunnel etc.) of good stability and reasonable stress retrains concrete bow member high-strength three-dimensional support system.
For achieving the above object, the present invention adopts following technical proposals: allow die mould retrain concrete bow member high-strength three-dimensional support system, mainly by retraining the concrete bow member, allowing and press node, longitudinal beam, anchor pole or anchor cable to form, constraint concrete bow member is the enclosed construction consistent with roadway shape, and the interval is arranged, connected with longitudinal beam between the adjacent constraint concrete bow member, be provided with anchor pole or anchor cable hole on the longitudinal beam, anchor pole or anchor cable pass longitudinal beam and anchor in the rock stratum, and apply prestressing force, and country rock is formed squeezing action; Anchor pole or anchor cable form a three-dimensional support system by longitudinal beam and the acting in conjunction of constraint concrete bow member.And, be provided with leveling between constraint concrete bow member and the country rock and release ergosphere, so that bow member and country rock close contact and make bow member bear uniform pressure.
Described constraint concrete bow member is retrained concrete by sleeve or allowed by multistage presses the node connection to combine, and is shaped as stalk arch, circle or the shape of a hoof.
Described constraint concrete is to fill the member that the core concrete forms in the steel tube confinement material, and wherein, the core concrete is the steel fibrous concrete material, and constraint concrete cross sectional shape is rectangle, round-shaped according to the practical application needs.
Described allowing presses node to press material and sleeve to consist of by allowing, and wherein, sleeve set is on constraint concrete bow member, and the play movements of two constraint concretes are filled with and allow the pressure material in sleeve, allow press material be have quantitative yielding property can allow pressure ring or macromolecular material.
Described longitudinal beam is mining girder steel channel-section steel, i iron or the constraint concrete with regular shape.
Described anchor pole is high strength anchor bar or grouted anchor bar, and described anchor cable is high-strength anchor cable or grouting cable anchor.
Described leveling is released ergosphere and is formed by the woven bag filling that the comminuted coal spoil is housed.
The present invention has the following advantages:
1. constraint concrete bow member has high-strength supporting capacity, and it is large to protect surface area, and plasticity and toughness properties are better, and non-deformability is strong, and the deep soft rock cave lane of large deformation, high confining pressure is had remarkable supporting effect.
2. the connection by longitudinal beam, make constraint concrete bow member and anchor pole or anchor cable acting in conjunction, form the three-dimensional support system in space, in the high-strength enabling capabilities of performance constraint concrete bow member, can more effective anchor pole or anchor cable prestressing force be diffused in the surrounding rock of chamber by bow member, can provide three-dimensional supporting power for country rock, surrouding rock deformation is controlled in the allowed band, avoid causing because of excessive deformation the bearing capacity forfeiture of country rock itself, thereby guarantee the stability of cave lane country rock.
3. the support system supporting intensity is high, integer support property regulation space is large, constraint concrete and longitudinal beam, anchor pole or anchor cable are used in conjunction with, can adjust bow member spacing, longitudinal beam array pitch in conjunction with on-the-spot geological condition, retrain concrete size and anchor pole or the parameters such as anchor cable model and an array pitch to carry out the coupling of mechanical property, country rock is carried out effective supporting.
4. allow and press node can play the pressure effect that effectively allows, after the support system bearing capacity reaches certain limit, allow country rock to produce certain distortion with release pressure, guaranteed monolithic stability and the safety of support system.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention one;
Fig. 2 retrains longitudinal beam connection diagram between concrete bow member frame among the present invention;
Fig. 3 is A-A sectional view among Fig. 1.
Fig. 4 is A structure enlarged diagram among Fig. 1;
Fig. 5 is the structural representation of the embodiment of the invention two.
Wherein: 1-constraint concrete bow member; 2-allow the pressure node; 3-sleeve; 4-longitudinal beam; Ergosphere is released in 5-leveling; 6-anchor pole; 7-constraint concrete; 8-constraint steel pipe; 9-concrete; 10-allow pressure ring; 11-tunnel terrace; 12-country rock.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing and embodiment.
With reference to Fig. 1 ~ 2, the specific embodiment of the present invention is, allow die mould retrain concrete bow member high-strength three-dimensional support system, mainly by constraint concrete bow member 1, allow and press node 2, longitudinal beam 4, anchor pole 6 forms, constraint concrete bow member 1 adds domes of the anti-end for the closed stalk arch consistent with roadway shape, its layout that keeps at a certain distance away, connect with longitudinal beam 4 between the adjacent constraint concrete bow member 1, be provided with bolthole on the longitudinal beam 4, anchor pole 6 passes longitudinal beam 4 and anchors in the country rock 12 again, and apply prestressing force, and country rock 12 is formed squeezing action, anchor pole 6 forms a three-dimensional support system by longitudinal beam 4 and constraint concrete bow member 1.Be provided with leveling between constraint concrete bow member 1 and the country rock 12 and release ergosphere 5, so that bow member 1 and country rock 12 close contacts and make bow member 1 bear uniform pressure.Wherein, the member that constraint concrete 7 forms for constraint steel pipe 8 inner filling steel fiber concretes 9, cross sectional shape is square (Fig. 3); Single constraint concrete bow member 1 is combined by 4 sections constraint concretes 7 connections, and the arch section presses node 2 to be connected with stalk section constraint concrete 7 by allowing, and encircle section and is connected by sleeve 3 with stalk section constraint concrete 7 at the anti-end; Allow and press node 2 by allowing pressure ring 10 and square sleeve 3 consist of, allow pressure ring 10 be arranged on the position, play movement (Fig. 4) of two constraint concretes 7 in the sleeve 3; Longitudinal beam 4 is mining channel-section steel, and length is consistent with adjacent bow member spacing; Anchor pole 6 can be selected high strength anchor bar or grouted anchor bar according to actual conditions and needs; Leveling is released ergosphere 5 and is formed by the woven bag filling that the comminuted coal spoil is housed.
In the present invention, bow member spacing, longitudinal beam arrange between density and anchor pole or anchor cable that the parameter such as array pitch can be according to the actual conditions adjustment, embodiment two as shown in Figure 5, for the Deep Soft Rock Tunnel that presents obvious asymmetrical deformation feature, longitudinal beam 4, anchor pole 6 can be arranged to unsymmetric form, and use grouted anchor bar to carry out wall rock grouting and reinforce, add strong supporting at key position.
As known by the technical knowledge, the present invention can realize by other the embodiment that does not break away from its Spirit Essence or essential feature.Therefore, with regard to each side, all just illustrating, is not only.All within the scope of the present invention or the change within being equal to scope of the present invention all be included in the invention.
Claims (7)
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| CN2012103977955A CN102852533A (en) | 2012-10-18 | 2012-10-18 | High-strength three-dimensional support system of yielding type restriction concrete lagging jack |
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Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103615273A (en) * | 2013-12-04 | 2014-03-05 | 山东大学 | Square steel confined concrete arch center wall back filling bolting-grouting support system and construction method |
| CN104153792A (en) * | 2014-07-24 | 2014-11-19 | 山东大学 | Energy-absorption yield tunnel support system and method suitable for weak broken wall rock |
| CN104343458A (en) * | 2014-09-29 | 2015-02-11 | 湖南科技大学 | Full-section wide-width one-piece type steel bracket and supporting method thereof |
| CN104763442A (en) * | 2015-03-12 | 2015-07-08 | 中国矿业大学(北京) | High-intensity large-shrinkage sealed cambered-plate support structural element |
| CN105298514A (en) * | 2015-11-26 | 2016-02-03 | 山东科技大学 | Cast-in-place continuous concrete support and installation method thereof |
| CN105569673A (en) * | 2015-12-31 | 2016-05-11 | 中国石油天然气集团公司 | Concrete filled steel tube bracket system and construction method |
| CN105822329A (en) * | 2016-05-11 | 2016-08-03 | 长沙理工大学 | Support frame, support structure and construction method of support structure |
| CN105952474A (en) * | 2016-07-08 | 2016-09-21 | 山东大学 | Rapid construction method for primary support of confined concrete of large-section tunnel |
| CN107905821A (en) * | 2017-12-20 | 2018-04-13 | 贵州大学 | The roadway support structure that truss coordinates with metallic support |
| CN107905806A (en) * | 2017-11-15 | 2018-04-13 | 长安大学 | A kind of device and its installation method for being used to lift the livable performance of cave dwelling |
| CN107956491A (en) * | 2017-10-11 | 2018-04-24 | 中国矿业大学(北京) | One kind is based on the soft rock roadway support method of " steel grating-concrete filled steel tube " |
| CN108397216A (en) * | 2018-05-14 | 2018-08-14 | 山东建筑大学 | A kind of concrete filled steel tube arch can contracting formula connector and arch |
| CN108412549A (en) * | 2018-03-21 | 2018-08-17 | 中煤科工集团重庆研究院有限公司 | Be adapted to gas occurrence rock section tunnel supporting construction |
| CN108915735A (en) * | 2018-06-21 | 2018-11-30 | 安徽理工大学 | Slopes wall construction method for supporting and slopes wall support system |
| CN109184737A (en) * | 2018-09-30 | 2019-01-11 | 山东建筑大学 | The tunnel prestressing force constraint of pressure energy-absorbing can be allowed to fill liner supporting system and technique |
| CN109372556A (en) * | 2018-09-30 | 2019-02-22 | 淮阴工学院 | Sandwich arch suitable for surrounding rock support of high stress soft rock tunnel and construction method |
| CN109458197A (en) * | 2018-12-30 | 2019-03-12 | 中国电建集团华东勘测设计研究院有限公司 | A kind of classification yield supporting system |
| CN109695454A (en) * | 2019-01-25 | 2019-04-30 | 河北工程大学 | The construction method of preliminary bracing is carried out in the constructing tunnel of high earthquake zone fracture area |
| CN110094215A (en) * | 2019-05-30 | 2019-08-06 | 三峡大学 | Non-newtonian fluid liner supporting structure and construction method |
| CN110307013A (en) * | 2019-08-09 | 2019-10-08 | 长沙理工大学 | A Biased Tunnel Arch and Biased Tunnel Arch Overhead Structure |
| CN110424989A (en) * | 2019-08-09 | 2019-11-08 | 中铁第六勘察设计院集团有限公司 | The first branch supporting construction of hard rock area super-span underground engineering and its construction method |
| CN110566242A (en) * | 2019-08-21 | 2019-12-13 | 义煤集团宜阳义络煤业有限责任公司 | control method for surrounding rock of top coal roadway of large-inclination soft thick coal seam |
| CN110953002A (en) * | 2019-12-04 | 2020-04-03 | 中铁第四勘察设计院集团有限公司 | Yielding node and arch frame |
| CN111005742A (en) * | 2019-12-04 | 2020-04-14 | 中铁第四勘察设计院集团有限公司 | Yielding node and arch frame |
| CN111911188A (en) * | 2020-09-04 | 2020-11-10 | 湖南科技大学 | A kind of installation method of high pressure tunnel pressure relief device |
| CN112879049A (en) * | 2021-01-19 | 2021-06-01 | 华北理工大学 | Arch yielding energy dissipation node connecting structure, arch and construction method |
| CN114151108A (en) * | 2021-11-18 | 2022-03-08 | 山东济矿鲁能煤电股份有限公司阳城煤矿 | A kind of soft rock chamber floor drum treatment and support method |
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| CN104153792A (en) * | 2014-07-24 | 2014-11-19 | 山东大学 | Energy-absorption yield tunnel support system and method suitable for weak broken wall rock |
| CN104343458B (en) * | 2014-09-29 | 2017-05-17 | 湖南科技大学 | Full-section wide-width one-piece type steel bracket and supporting method thereof |
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| CN107956491B (en) * | 2017-10-11 | 2020-05-12 | 中国矿业大学(北京) | Soft rock roadway supporting method based on steel grating-steel pipe concrete |
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| CN108412549B (en) * | 2018-03-21 | 2023-07-18 | 中煤科工集团重庆研究院有限公司 | Tunnel supporting structure suitable for gas occurrence rock section |
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| CN109372556A (en) * | 2018-09-30 | 2019-02-22 | 淮阴工学院 | Sandwich arch suitable for surrounding rock support of high stress soft rock tunnel and construction method |
| CN109184737B (en) * | 2018-09-30 | 2023-11-03 | 山东建筑大学 | Tunnel prestressed restraint filling lining support system and technology capable of absorbing pressure and energy |
| CN109458197A (en) * | 2018-12-30 | 2019-03-12 | 中国电建集团华东勘测设计研究院有限公司 | A kind of classification yield supporting system |
| CN109695454A (en) * | 2019-01-25 | 2019-04-30 | 河北工程大学 | The construction method of preliminary bracing is carried out in the constructing tunnel of high earthquake zone fracture area |
| CN110094215A (en) * | 2019-05-30 | 2019-08-06 | 三峡大学 | Non-newtonian fluid liner supporting structure and construction method |
| CN110307013A (en) * | 2019-08-09 | 2019-10-08 | 长沙理工大学 | A Biased Tunnel Arch and Biased Tunnel Arch Overhead Structure |
| CN110424989B (en) * | 2019-08-09 | 2024-02-09 | 中铁第六勘察设计院集团有限公司 | Primary support structure of ultra-large span underground engineering in hard rock area and construction method thereof |
| CN110424989A (en) * | 2019-08-09 | 2019-11-08 | 中铁第六勘察设计院集团有限公司 | The first branch supporting construction of hard rock area super-span underground engineering and its construction method |
| CN110566242A (en) * | 2019-08-21 | 2019-12-13 | 义煤集团宜阳义络煤业有限责任公司 | control method for surrounding rock of top coal roadway of large-inclination soft thick coal seam |
| CN111005742A (en) * | 2019-12-04 | 2020-04-14 | 中铁第四勘察设计院集团有限公司 | Yielding node and arch frame |
| CN110953002A (en) * | 2019-12-04 | 2020-04-03 | 中铁第四勘察设计院集团有限公司 | Yielding node and arch frame |
| CN110953002B (en) * | 2019-12-04 | 2025-03-04 | 中铁第四勘察设计院集团有限公司 | Yield nodes and arches |
| CN111911188A (en) * | 2020-09-04 | 2020-11-10 | 湖南科技大学 | A kind of installation method of high pressure tunnel pressure relief device |
| CN112879049A (en) * | 2021-01-19 | 2021-06-01 | 华北理工大学 | Arch yielding energy dissipation node connecting structure, arch and construction method |
| CN112879049B (en) * | 2021-01-19 | 2022-08-30 | 华北理工大学 | Arch yielding energy dissipation node connecting structure, arch and construction method |
| CN114151108B (en) * | 2021-11-18 | 2024-03-22 | 山东济矿鲁能煤电股份有限公司阳城煤矿 | Soft rock chamber bottom drum treatment supporting method |
| CN114151108A (en) * | 2021-11-18 | 2022-03-08 | 山东济矿鲁能煤电股份有限公司阳城煤矿 | A kind of soft rock chamber floor drum treatment and support method |
| CN114483085B (en) * | 2022-04-01 | 2022-07-01 | 中国矿业大学(北京) | Construction method of double-partition double-control system of soft rock tunnel |
| CN114483085A (en) * | 2022-04-01 | 2022-05-13 | 中国矿业大学(北京) | Construction method of double-partition double-control system of soft rock tunnel |
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Application publication date: 20130102 |