CN101922300A - Large supporting and protecting system of tunnel in hollow solution cavity - Google Patents

Large supporting and protecting system of tunnel in hollow solution cavity Download PDF

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Publication number
CN101922300A
CN101922300A CN 201010265753 CN201010265753A CN101922300A CN 101922300 A CN101922300 A CN 101922300A CN 201010265753 CN201010265753 CN 201010265753 CN 201010265753 A CN201010265753 A CN 201010265753A CN 101922300 A CN101922300 A CN 101922300A
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China
Prior art keywords
tunnel
solution cavity
frame
cavity
supporting
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CN 201010265753
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Chinese (zh)
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CN101922300B (en
Inventor
苗德海
朱丹
王伟
李鸣冲
王克金
马涛
薛斌
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China Railway Siyuan Survey and Design Group Co Ltd
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China Railway Siyuan Survey and Design Group Co Ltd
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Priority to CN 201010265753 priority Critical patent/CN101922300B/en
Publication of CN101922300A publication Critical patent/CN101922300A/en
Priority to PCT/CN2011/078257 priority patent/WO2012028051A1/en
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Expired - Fee Related legal-status Critical Current
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/08—Lining with building materials with preformed concrete slabs
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

The invention relates to a large supporting and protecting system of a tunnel in a hollow solution cavity, which comprises an upright post supporting structure and a frame-type tunnel structure. The large supporting and protecting system of the tunnel in the hollow solution cavity is characterized in that the upright post supporting structure is arranged at two sides of the tunnel in the solution cavity and used for supporting the top of the solution cavity; the frame-type tunnel structure consists of a lower tunnel frame and an upper supporting frame; the upper supporting frame is arranged above the lower tunnel frame and connected with the lower tunnel frame into a whole; the inner profile of a tunnel cavity of the lower tunnel frame is consistent with that of a normal tunnel; the upper supporting frame extends to the top of the solution cavity; a cavity with an open upper end is arranged at the top of the upper supporting frame; the open part of the cavity corresponds to the top of the solution cavity; and the cavity is internally refilled with concrete and is in contact with the top of the solution cavity closely. The top surface of the solution cavity is actively protected by adopting the upright post supporting structure and the frame-type tunnel structure, and a top plate in the solution cavity is prevented from damaging the tunnel structure when an unstable rock mass falls, therefore, the protection capability of the structure is adequately exerted, the construction cost is decreased, and the safety and the reliability of the tunnel structure are ensured.

Description

Large supporting and protecting system of tunnel in hollow solution cavity
Technical field
The present invention relates to the supporting and protecting system of tunnel that a kind of tunnel passes through large-scale empty solution cavity, belong to tunnel and underground engineering field.
Background technology
Build construction of tunnel at karst area and often meet with various type of karst, when the tunnel passed through large-scale empty solution cavity, block may take place and fall in Upper Plate of Karst Cave, and constructing tunnel and operation are caused great harm, easily caused casualties and runed interruption.
In the prior art tunnel being passed through large-scale empty solution cavity mainly is to handle respectively at Upper Plate of Karst Cave and tunnel structure, promptly Upper Plate of Karst Cave being taked to spray modes such as anchor net, anchor cable, active net protects, place on line is provided with the open cut tunnel tunnel structure, and buffer structure is set on open cut tunnel top, prevent that the local falling rocks of Upper Plate of Karst Cave from destroying tunnel structure, influence operation security, there is following problem in existing processing mode:
1, the solution cavity hall is larger, and the top board protection need be provided with a large amount of falseworks, long construction period, and cost is higher.
2, Upper Plate of Karst Cave perform spray anchor net, anchor cable, when initiatively netting, further disturbance Upper Plate of Karst Cave sillar may fall piece, has potential safety hazard in the work progress.
When 3, tunnel structure designs, consider that the contingent sillar of top board falls, according to passive stressed consideration, tunnel structure is too thick and heavy, and is uneconomical.
Summary of the invention
The objective of the invention is in order to solve the deficiency that the above-mentioned background technology exists, when a kind of tunnel passes through large-scale empty solution cavity, the support system that is to prevent the Upper Plate of Karst Cave block to fall the top board protection adopted and tunnel structure combine, guarantee to construct and run safe and reliable.
For achieving the above object, the present invention adopts following technical scheme: large supporting and protecting system of tunnel in hollow solution cavity comprises column top support structure and frame type tunnel structure; It is characterized in that: described column top support structure is positioned at solution cavity inner tunnel both sides, is used to support the solution cavity top; Described frame type tunnel structure is made up of lower floor's tunnel frame and upper supporting frame, and upper supporting frame is positioned at lower floor tunnel frame top and is connected as a single entity; Profile is consistent with normal tunnel in the tunnel cavity of lower floor's tunnel frame; Upper supporting frame extends to the solution cavity top; Be provided with the cavity that the upper end is opened wide at the upper supporting frame top, this cavity open section is corresponding with the solution cavity top, and the mixed earth of backfill closely contacts with the solution cavity top in this cavity.
Preferably, described column top support structure is vertically arranged along the tunnel in solution cavity.
Preferably, described column top support structure is made up of upright post basic, column and top cap, and upright post basic 5 adopts concrete spouting, be positioned on the basement rock of solution cavity bottom, top cap 6 closely contacts with solution cavity top 2, and column adopts steel concrete cast in situs, between upright post basic and top cap.
Preferably, lower floor's tunnel frame cross section of described frame type tunnel structure is a subcircular; Upper supporting frame is by two pick up the ears walls and form at two transverse slats of picking up the ears between the wall, described two walls of picking up the ears are arranged vertically, the lower end respectively with circular lower floor tunnel frame both sides vicinal one, the upper end extends the solution cavity top side location, and described transverse slat is positioned at circular lower floor tunnel frame top near the solution cavity top side location.
Preferably, described frame type tunnel structure adopts steel concrete cast in situs.
The present invention utilizes column top support structure and frame type tunnel structure that the solution cavity end face is carried out the active protection, has prevented that the unstable rock mass of solution cavity end face from falling, and guaranteed construction and operation security.Especially take the support system that end face protects and tunnel structure combines, given full play to the protective capacities of whole support system, reduced construction costs, guaranteed tunnel structure safety, reliable.
Description of drawings
Fig. 1 present embodiment schematic cross-sectional view;
Fig. 2 is an I-I longitudinal section schematic diagram among Fig. 1.
The specific embodiment
Below by drawings and Examples, the present invention is described in further details, so that technician's of the same trade understanding.
As shown in Figure 1, 2, present embodiment relates to the supporting and protecting system of tunnel of large-scale empty solution cavity 1, is specially adapted to the supporting and protection structure that the tunnel passes through large-scale empty solution cavity section, and it mainly is made up of column top support structure, frame type tunnel structure and frame roof fill concrete.
1) described column top support structure is made up of upright post basic 5, column 4 and top cap 6, and column 4 adopts steel concrete cast in situs, supports the end face 2 of solution cavity 1, prevents that large-scale empty solution cavity end face rock mass from collapsing; Upright post basic 5 adopts concrete spoutings, is positioned on 3 basement rock of solution cavity bottom, stablizes guaranteeing; Top cap 6 closely contacts with solution cavity end face 2.In solution cavity, vertically be arranged with a plurality of above-mentioned column top support structures, prevent that large-scale empty solution cavity end face rock mass from collapsing along the both sides, tunnel.
2) described frame type tunnel structure is made up of lower floor's tunnel frame and upper supporting frame, and upper supporting frame is positioned at lower floor tunnel frame top and is connected as a single entity, and structure is taked steel concrete, guarantees train operation safety; Described lower floor tunnel frame 7 cross sections are circular, and profile is consistent with normal tunnel in its tunnel cavity; Upper supporting frame is by two pick up the ears walls 10 and form at two transverse slats 9 of picking up the ears between the wall, and described two walls 10 of picking up the ears are arranged vertically, the lower end respectively with circular lower floor tunnel frame both sides vicinal one, the upper end extends the solution cavity top side location, it is stable to help solution cavity end face 2.Described transverse slat 9 is positioned at circular lower floor tunnel frame top near the solution cavity top side location.
Above upper supporting frame transverse slat 9, be provided with the cavity that the upper end is opened wide, this cavity open section is corresponding with the solution cavity end face, fills up backfill in this cavity and mixes earth 8, and fill concrete 8 closely contacts with the solution cavity top, strengthen protection top board area, guaranteed protection effect.
The present invention takes column top support structure and frame type tunnel structure that the solution cavity end face is carried out the active protection, preventing that the unstable rock mass of Upper Plate of Karst Cave from falling damages tunnel structure, protection of solution cavity end face and tunnel support structure are combined, give full play to the structural shielding ability, reduce construction costs, guarantee tunnel structure safety and reliable.

Claims (5)

1. large supporting and protecting system of tunnel in hollow solution cavity comprises column top support structure and frame type tunnel structure; It is characterized in that: described column top support structure is positioned at solution cavity inner tunnel both sides, is used to support the solution cavity top; Described frame type tunnel structure is made up of lower floor's tunnel frame and upper supporting frame, and upper supporting frame is positioned at lower floor tunnel frame top and is connected as a single entity; Profile is consistent with normal tunnel in the tunnel cavity of lower floor's tunnel frame; Upper supporting frame extends to the solution cavity top; Be provided with the cavity that the upper end is opened wide at the upper supporting frame top, this cavity open section is corresponding with the solution cavity top, and the mixed earth of backfill closely contacts with the solution cavity top in this cavity.
2. large supporting and protecting system of tunnel in hollow solution cavity according to claim 1 is characterized in that: described column top support structure is vertically arranged along the tunnel in solution cavity.
3. large supporting and protecting system of tunnel in hollow solution cavity according to claim 1, it is characterized in that: described column top support structure is made up of upright post basic, column and top cap, upright post basic (5) adopts concrete spouting, be positioned on the basement rock of solution cavity bottom, top cap (6) closely contacts with solution cavity top (2), column adopts steel concrete cast in situs, between upright post basic and top cap.
4. large supporting and protecting system of tunnel in hollow solution cavity according to claim 1 is characterized in that: lower floor's tunnel frame cross section of described frame type tunnel structure is for circular; Upper supporting frame is by two pick up the ears walls and form at two transverse slats of picking up the ears between the wall, described two walls of picking up the ears are arranged vertically, the lower end respectively with circular lower floor tunnel frame both sides vicinal one, the upper end extends the solution cavity top side location, and described transverse slat is positioned at circular lower floor tunnel frame top near the solution cavity top side location.
5. according at least one described large supporting and protecting system of tunnel in hollow solution cavity among the claim 1-4, it is characterized in that: described frame type tunnel structure adopts steel concrete cast in situs.
CN 201010265753 2010-08-30 2010-08-30 Large-scale empty solution cavity tunnel supporting system Expired - Fee Related CN101922300B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN 201010265753 CN101922300B (en) 2010-08-30 2010-08-30 Large-scale empty solution cavity tunnel supporting system
PCT/CN2011/078257 WO2012028051A1 (en) 2010-08-30 2011-08-11 Support system for tunnel in large karst cave

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Application Number Priority Date Filing Date Title
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WO2012028051A1 (en) * 2010-08-30 2012-03-08 中铁第四勘察设计院集团有限公司 Support system for tunnel in large karst cave
CN102383806A (en) * 2011-07-18 2012-03-21 广东华盟路桥工程有限公司 Construction technology for allowing tunnel to pass through ultra-large karst cave
CN103498477A (en) * 2013-10-23 2014-01-08 中铁二院工程集团有限责任公司 Large-sized hollow concrete structure for refilling large-scale cavity
CN103742159A (en) * 2014-01-18 2014-04-23 中铁三局集团有限公司 Construction method for large soluble-collapse type karst cave with tunnels passing through
CN104018848A (en) * 2014-06-21 2014-09-03 西安科技大学 Roof caving prevention and treatment method of rectangular roadway
CN104373134A (en) * 2014-09-23 2015-02-25 山东科技大学 Space division method for treating large complex cave
CN104481552A (en) * 2014-10-29 2015-04-01 中铁三局集团有限公司 Construction method of roof rockfall protection for super karst caves
CN104695966A (en) * 2015-01-06 2015-06-10 济南轨道交通集团有限公司 Construction method of underground arch roof plate
CN104879136A (en) * 2015-04-17 2015-09-02 山东大学 Supporting and protecting system for tunnel penetrating weak and broken formations of karst cave and mounting method of supporting and protecting system
CN106988758A (en) * 2017-05-08 2017-07-28 中铁五局集团第五工程有限责任公司 One kind is used to pass through large-scale vertical solution cavity group method for tunnel construction
CN109882205A (en) * 2019-03-28 2019-06-14 中铁二院工程集团有限责任公司 It is a kind of to pass through large-scale suspention backfill structure and construction method without filling solution cavity tunnel
CN110219671A (en) * 2019-03-28 2019-09-10 中铁二院工程集团有限责任公司 It is a kind of to pass through large-scale relieving arch backfill structure and construction method without filling solution cavity tunnel
CN111075471A (en) * 2019-12-29 2020-04-28 中铁二院工程集团有限责任公司 Large karst cavity top filling type tunnel rockfall prevention structure and construction method
CN111101968A (en) * 2019-12-29 2020-05-05 中铁二院工程集团有限责任公司 Large karst cavity tunnel large deformation frame rock fall prevention structure and construction method
CN111101966A (en) * 2019-12-29 2020-05-05 中铁二院工程集团有限责任公司 Large karst cavity rockfall-preventing elastic tunnel structure and construction method
CN111119929A (en) * 2019-12-29 2020-05-08 中铁二院工程集团有限责任公司 Lattice type rockfall prevention structure of large-scale ultrahigh karst cavity tunnel and construction method
CN111236963A (en) * 2020-03-17 2020-06-05 中铁二院工程集团有限责任公司 Open cut tunnel structure and construction method thereof
CN111305866A (en) * 2019-12-29 2020-06-19 中铁二院工程集团有限责任公司 Large karst cavity tunnel structure and construction method
CN111412002A (en) * 2020-04-21 2020-07-14 中铁二院工程集团有限责任公司 Anchor cable counter-pulling type supporting structure system and construction method
CN111502750A (en) * 2020-06-09 2020-08-07 中铁四局集团有限公司 Method for processing karst tunnel bottom large-scale karst cave
CN111878112A (en) * 2020-07-30 2020-11-03 中铁五局集团有限公司 Karst cave section concrete spraying construction method based on karst cave underground river environment tunnel construction
CN111878086A (en) * 2020-07-30 2020-11-03 中铁五局集团有限公司 Peripheral construction channel arrangement method based on karst cave underground river environment tunnel construction
WO2023082543A1 (en) * 2021-11-09 2023-05-19 交通运输部公路科学研究所 Construction method for karst tunnel crossing over high-water-level underground river and water guide structure
WO2024050850A1 (en) * 2022-09-05 2024-03-14 中铁四局集团第二工程有限公司 Treatment method for super-large karst cave cavity behind tunnel wall

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CN111574180A (en) * 2020-05-28 2020-08-25 贵州大学 Underground backfill material suitable for karst region and preparation method thereof
CN113268801B (en) * 2021-06-04 2022-09-06 中铁隧道局集团有限公司 Tunnel surrounding rock supporting method and system based on tunnel field solution reconstruction theory
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CN114738002A (en) * 2022-04-24 2022-07-12 广东冠粤路桥有限公司 Tunnel karst cave treatment structure and tunnel karst cave treatment construction method

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CN102383806A (en) * 2011-07-18 2012-03-21 广东华盟路桥工程有限公司 Construction technology for allowing tunnel to pass through ultra-large karst cave
CN102383806B (en) * 2011-07-18 2013-09-18 广东华盟路桥工程有限公司 Construction technology for allowing tunnel to pass through ultra-large karst cave
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CN103742159A (en) * 2014-01-18 2014-04-23 中铁三局集团有限公司 Construction method for large soluble-collapse type karst cave with tunnels passing through
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CN104481552A (en) * 2014-10-29 2015-04-01 中铁三局集团有限公司 Construction method of roof rockfall protection for super karst caves
CN104695966A (en) * 2015-01-06 2015-06-10 济南轨道交通集团有限公司 Construction method of underground arch roof plate
CN104695966B (en) * 2015-01-06 2016-11-02 济南轨道交通集团有限公司 A kind of construction method of underground arch top board
CN104879136B (en) * 2015-04-17 2017-05-31 山东大学 Weak broken formation tunnel support system and installation method for passing through solution cavity
CN104879136A (en) * 2015-04-17 2015-09-02 山东大学 Supporting and protecting system for tunnel penetrating weak and broken formations of karst cave and mounting method of supporting and protecting system
CN106988758A (en) * 2017-05-08 2017-07-28 中铁五局集团第五工程有限责任公司 One kind is used to pass through large-scale vertical solution cavity group method for tunnel construction
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CN109882205B (en) * 2019-03-28 2024-01-19 中铁二院工程集团有限责任公司 Suspension backfill structure penetrating through large filling-free karst cave tunnel and construction method
CN111075471A (en) * 2019-12-29 2020-04-28 中铁二院工程集团有限责任公司 Large karst cavity top filling type tunnel rockfall prevention structure and construction method
CN111119929A (en) * 2019-12-29 2020-05-08 中铁二院工程集团有限责任公司 Lattice type rockfall prevention structure of large-scale ultrahigh karst cavity tunnel and construction method
CN111101966A (en) * 2019-12-29 2020-05-05 中铁二院工程集团有限责任公司 Large karst cavity rockfall-preventing elastic tunnel structure and construction method
CN111305866A (en) * 2019-12-29 2020-06-19 中铁二院工程集团有限责任公司 Large karst cavity tunnel structure and construction method
CN111119929B (en) * 2019-12-29 2024-08-27 中铁二院工程集团有限责任公司 Large-scale ultra-high karst cavity tunnel lattice type anti-falling stone structure and construction method
CN111101968A (en) * 2019-12-29 2020-05-05 中铁二院工程集团有限责任公司 Large karst cavity tunnel large deformation frame rock fall prevention structure and construction method
CN111236963A (en) * 2020-03-17 2020-06-05 中铁二院工程集团有限责任公司 Open cut tunnel structure and construction method thereof
CN111236963B (en) * 2020-03-17 2024-08-23 中铁二院工程集团有限责任公司 Open cut tunnel structure and construction method thereof
CN111412002A (en) * 2020-04-21 2020-07-14 中铁二院工程集团有限责任公司 Anchor cable counter-pulling type supporting structure system and construction method
CN111502750A (en) * 2020-06-09 2020-08-07 中铁四局集团有限公司 Method for processing karst tunnel bottom large-scale karst cave
CN111878086A (en) * 2020-07-30 2020-11-03 中铁五局集团有限公司 Peripheral construction channel arrangement method based on karst cave underground river environment tunnel construction
CN111878112A (en) * 2020-07-30 2020-11-03 中铁五局集团有限公司 Karst cave section concrete spraying construction method based on karst cave underground river environment tunnel construction
WO2023082543A1 (en) * 2021-11-09 2023-05-19 交通运输部公路科学研究所 Construction method for karst tunnel crossing over high-water-level underground river and water guide structure
WO2024050850A1 (en) * 2022-09-05 2024-03-14 中铁四局集团第二工程有限公司 Treatment method for super-large karst cave cavity behind tunnel wall

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