CN104405419B - The parallel median septum construction method of wall multiple-arch tunnel in implicit expression - Google Patents
The parallel median septum construction method of wall multiple-arch tunnel in implicit expression Download PDFInfo
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- CN104405419B CN104405419B CN201410538377.2A CN201410538377A CN104405419B CN 104405419 B CN104405419 B CN 104405419B CN 201410538377 A CN201410538377 A CN 201410538377A CN 104405419 B CN104405419 B CN 104405419B
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- 238000010276 construction Methods 0.000 title claims abstract description 21
- 239000004567 concrete Substances 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 239000011210 fiber-reinforced concrete Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- E21D11/14—Lining predominantly with metal
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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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses the parallel median septum construction method of wall multiple-arch tunnel in a kind of implicit expression, comprise the upper left quarter that excavates left and right hole, apply preliminary bracing and gib; Excavate the lower left quarter in left and right hole, apply preliminary bracing and gib; Set up diagonal brace, in middle wall lining is built steelframe and the spray of diagonal brace region build concrete; Excavate right hole upper right quarter, apply preliminary bracing; Excavate left hole upper right quarter, apply preliminary bracing; Excavate right hole right lower quadrant, apply preliminary bracing; Excavate left hole right lower quadrant, apply the steps such as preliminary bracing. In implicit expression of the present invention, wall compound multiple-arch tunnel adopts composite lining structure, and middle wall adopts " steel fiber reinforced concrete+profile steel frame " version, and its structure alienation is in hole preliminary bracing in advance; In structure, wall is without gib, can reduce construction way and save investment, and significantly improving Multi-arch Tunnel Construction efficiency, has broad application prospects growing up in tunnel and city tunnel.
Description
Technical field
The invention belongs to tunnel construction technology field, specifically, particularly wall arcading tunnel in a kind of implicit expressionThe parallel median septum construction method in road.
Background technology
At present, the structural shape that multiple-arch tunnel adopts both at home and abroad mainly contains wall multiple-arch tunnel and compound in monoblock typeWall multiple-arch tunnel in formula. In monoblock type, wall multiple-arch tunnel is because difficulty of construction is large, and waterproof effect is poor, and structure is resistance toProperty is poor for a long time, seldom adopts at present. In common combined type, wall multiple-arch tunnel is to adopt at present maximum arcading tunnelsRoad structural shape, but its speed of application is slow, circuit bad adaptability, invest high, efficiency of construction is low.
For this present situation, domestic and international numerous technical staff have studied a lot of improved multiple-arch tunnel structures, thisWall gib during a little structures need mostly, or adopt hole two linings in advance to go to resist pressure from surrounding rock, the executing of employingWork method can be divided into the extended method of middle pilot tunnel method, three pilot tunnel methods, two holes method and first three class, and to two holesMethod transforms, and reduces the impact of leading hole on subsequent handling, to improve efficiency of construction. But, all do not have from rootThe problem that in solving in basis, wall excavation disturbs other operations.
Therefore, wall gib waste of material and the construction of middle wall construction infection in multiple-arch tunnel engineering method existence at presentThe drawback of efficiency, the larger potential safety hazard of tool while simultaneously bringing middle wall gib to remove, anti-drainage effect poor andThe problems such as structure durability is poor, have seriously restricted the extensive use of multiple-arch tunnel.
Summary of the invention
Technical problem to be solved by this invention is to provide the parallel median septum of wall multiple-arch tunnel in a kind of implicit expression to executeWork method.
Technical scheme of the present invention is as follows: the parallel median septum construction method of wall multiple-arch tunnel in a kind of implicit expression, itsBe characterised in that and comprise the following steps:
1) utilize a upper circulation supporting, excavate the upper left quarter in left and right hole, the initial stage that applies each hole upper left quarter props upProtect (1), and form Zhong Qiang top steelframe (3); Apply top in the centre position on top, each hole faces simultaneouslyTime supporting (2), the upper end of top gib (2) and the preliminary bracing (1) of corresponding hole upper left quarter are connectedConnect;
2) excavate the lower left quarter in left and right hole, apply the preliminary bracing (4) of each hole lower left quarter, and in formingWall bottom steelframe (6), makes the preliminary bracing (4) of each hole lower left quarter and preliminary bracing (1) phase of upper left quarterConnect, Zhong Qiang bottom steelframe (6) and Zhong Qiang top steelframe (3) connect to form middle wall lining and build steelframe; SimultaneouslyApply bottom gib (5) in the centre position of bottom, each hole, make the lower end of bottom gib (5)Connect with the preliminary bracing (4) of corresponding hole lower left quarter, upper end and the top of bottom gib (5) are interimThe lower end of supporting (2) connects to form median septum, and the median septum in hole, left and right parallels;
3) left low right high diagonal brace (7) is set in the upper right side of Zhong Qiang top steelframe (3), makes diagonal brace (7)Yu Zhongqiang top, one end steelframe (3) connect, the other end is connected with the preliminary bracing (1) of right hole upper left quarter;Then in middle wall lining is built steelframe and the spray of diagonal brace (7) region build concrete;
4) excavate right hole upper right quarter, apply the preliminary bracing (8) of right hole upper right quarter, make right hole upper right quarterPreliminary bracing (8) is connected with the preliminary bracing (1) of right hole upper left quarter;
5) excavate left hole upper right quarter, apply the preliminary bracing (9) of left hole upper right quarter, make left hole upper right quarterThe preliminary bracing (1) of Yu Zuo hole, preliminary bracing (9) one end upper left quarter connects, the other end and right hole upper left quarterPreliminary bracing (1) connect;
6) excavate right hole right lower quadrant, apply the preliminary bracing (10) of right hole right lower quadrant, make right hole right lower quadrantThe preliminary bracing (8) of Yu You hole, preliminary bracing (10) one end upper right quarter connects, the other end and right hole lower left quarterPreliminary bracing (4) connect;
7) excavate left hole right lower quadrant, apply the preliminary bracing (11) of left hole right lower quadrant, make left hole right lower quadrantThe preliminary bracing (4) of Yu Zuo hole, preliminary bracing (11) one end lower left quarter connects, the other end and right hole lower left quarterPreliminary bracing (4) connect;
8), after preliminary bracing stabilization, remove top gib (2) and bottom gib (5)The interim steelframe forming, then lays each hole inverted arch and abutment wall bottom splash guard, placing inverted arch abutment wall basisWith inverted arch, after the initial set of inverted arch concrete, placing inverted arch is filled;
9) lay hoop french drain difference laying water-proof coiled material, utilize the each hole of the disposable placing of lining template trolley for baffleArch wall lining cutting.
The invention has the beneficial effects as follows:
1, the present invention do not excavate in pilot tunnel, two cavity parallels constructions, the two interim mid-boards in hole are bordering on parallel, middle wallSynchronously excavate in alienation structure side in space, and secondary sets up steel bearing diagonal, and middle wall concrete is built in secondary spray, lastThe left base tunnel of excavation get out of a predicament or an embarrassing situation country rock ensure in wall stability, the construction of two holes is relatively independent, disturb little, can be largeWidth improves Multi-arch Tunnel Construction efficiency, can realize multiple-arch tunnel and fast construct.
2, the present invention is in conjunction with wall multiple-arch tunnel structure in implicit expression, and first During Initial Stage Construction supporting and Zhong Qiang, finally applyWatertight composition and secondary lining, secondary liner structure is built, two after adopting independent anti-drainage system and uniform thickness in two tunnelsRepeatedly stress state is not experienced in inferior lining cutting, and waterproof system integrality is good, and secondary lining is not easy to crack, has solvedThe anti-drainage effect of multiple-arch tunnel is poor, structure durability is poor, efficiency of construction is low and invest high problem.
3, the present invention construct after structure to have good waterproof system integrality, working security, structure durableProperty and long-term safety, can realize multiple-arch tunnel fast to construct, and has significant engineering significance and social economyBenefit, has broad application prospects in tunnel and city tunnel growing up.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1, in implicit expression, the parallel median septum construction method of wall multiple-arch tunnel has following steps:
1) utilize a upper circulation supporting, excavate the upper left quarter in left and right hole simultaneously, apply each hole upper left quarter at the beginning ofPhase supporting 1, and form Zhong Qiang top steelframe 3; Apply top in the centre position on top, each hole props up simultaneously temporarilyProtect 2, the upper end of top gib 2 is connected with the preliminary bracing 1 of corresponding hole upper left quarter.
2) excavate the lower left quarter in left and right hole, apply the preliminary bracing 4 of each hole lower left quarter, and in forming under wallPortion's steelframe 6, is connected the preliminary bracing 4 of each hole lower left quarter and the preliminary bracing 1 of upper left quarter, Zhong Qiang bottomSteelframe 6 and Zhong Qiang top steelframe 3 connect to form middle wall lining and build steelframe; While is in the centre position of bottom, each holeApply bottom gib 5, the lower end of bottom gib 5 and the preliminary bracing of corresponding hole lower left quarter 4 are connectedConnect, the lower end of the upper end of bottom gib 5 and top gib 2 connects to form median septum, hole, left and rightMedian septum parallel; Preliminary bracing 1, preliminary bracing 4, bottom gib 5 and the top in each hole are interimSupporting 2 is adjacent successively, composition closed-loop structure.
3) left low right high diagonal brace 7 is set in the upper right side of Zhong Qiang top steelframe 3, the one end that makes diagonal brace 7 withZhong Qiang top steelframe 3 connects, and the other end is connected with the preliminary bracing 1 of right hole upper left quarter; Then at middle wall liningIn block steelframe and diagonal brace 7 regions are sprayed and are built concrete.
4) excavate right hole upper right quarter, apply the preliminary bracing 8 of right hole upper right quarter, make the initial stage of right hole upper right quarterSupporting 8 is connected with the preliminary bracing 1 of right hole upper left quarter.
5) excavate left hole upper right quarter, apply the preliminary bracing 9 of left hole upper right quarter, make the initial stage of left hole upper right quarterThe preliminary bracing 1 of supporting 9 Yu Zuo hole, one end upper left quarters connects, the preliminary bracing 1 of the other end and right hole upper left quarterConnect.
6) excavate right hole right lower quadrant, apply the preliminary bracing 10 of right hole right lower quadrant, make the initial stage of right hole right lower quadrantThe preliminary bracing 8 of supporting 10 Yu You hole, one end upper right quarters connects, the preliminary bracing of the other end and right hole lower left quarter4 connect.
7) excavate left hole right lower quadrant, apply the preliminary bracing 11 of left hole right lower quadrant, make the initial stage of left hole right lower quadrantThe preliminary bracing 4 of supporting 11 Yu Zuo hole, one end lower left quarters connects, the preliminary bracing of the other end and right hole lower left quarter4 connect; The preliminary bracing skeleton of whole multiple-arch tunnel completes.
8), after preliminary bracing stabilization, remove top gib 2 and form with bottom gib 5Interim steelframe, then lay each hole inverted arch and abutment wall bottom splash guard, placing inverted arch abutment wall basis and inverted arch,After the initial set of inverted arch concrete, placing inverted arch is filled.
9) lay hoop french drain difference laying water-proof coiled material, utilize the each hole of the disposable placing of lining template trolley for baffleArch wall lining cutting.
In above operation, each preliminary bracing and gib are steel frame construction; Step 8) remove interim steelframeAfter operation and step 9) be prior art, therefore not to repeat here.
Claims (1)
1. the parallel median septum construction method of wall multiple-arch tunnel in implicit expression, is characterized in that comprising the following steps:
1) utilize a upper circulation supporting, excavate the upper left quarter in left and right hole, the initial stage that applies each hole upper left quarter props upProtect (1), and form Zhong Qiang top steelframe (3); Apply top in the centre position on top, each hole faces simultaneouslyTime supporting (2), the upper end of top gib (2) and the preliminary bracing (1) of corresponding hole upper left quarter are connectedConnect;
2) excavate the lower left quarter in left and right hole, apply the preliminary bracing (4) of each hole lower left quarter, and in formingWall bottom steelframe (6), makes the preliminary bracing (4) of each hole lower left quarter and preliminary bracing (1) phase of upper left quarterConnect, Zhong Qiang bottom steelframe (6) and Zhong Qiang top steelframe (3) connect to form middle wall lining and build steelframe; SimultaneouslyApply bottom gib (5) in the centre position of bottom, each hole, make the lower end of bottom gib (5)Connect with the preliminary bracing (4) of corresponding hole lower left quarter, upper end and the top of bottom gib (5) are interimThe lower end of supporting (2) connects to form median septum, and the median septum in left and right hole parallels;
3) left low right high diagonal brace (7) is set in the upper right side of Zhong Qiang top steelframe (3), makes diagonal brace (7)Yu Zhongqiang top, one end steelframe (3) connect, the other end is connected with the preliminary bracing (1) of right hole upper left quarter;Then in middle wall lining is built steelframe and the spray of diagonal brace (7) region build concrete;
4) excavate right hole upper right quarter, apply the preliminary bracing (8) of right hole upper right quarter, make right hole upper right quarterPreliminary bracing (8) is connected with the preliminary bracing (1) of right hole upper left quarter;
5) excavate left hole upper right quarter, apply the preliminary bracing (9) of left hole upper right quarter, make left hole upper right quarterThe preliminary bracing (1) of Yu Zuo hole, preliminary bracing (9) one end upper left quarter connects, the other end and right hole upper left quarterPreliminary bracing (1) connect;
6) excavate right hole right lower quadrant, apply the preliminary bracing (10) of right hole right lower quadrant, make right hole right lower quadrantThe preliminary bracing (8) of Yu You hole, preliminary bracing (10) one end upper right quarter connects, the other end and right hole lower left quarterPreliminary bracing (4) connect;
7) excavate left hole right lower quadrant, apply the preliminary bracing (11) of left hole right lower quadrant, make left hole right lower quadrantThe preliminary bracing (4) of Yu Zuo hole, preliminary bracing (11) one end lower left quarter connects, the other end and right hole lower left quarterPreliminary bracing (4) connect;
8), after preliminary bracing stabilization, remove top gib (2) and bottom gib (5)The interim steelframe forming, then lays each hole inverted arch and abutment wall bottom splash guard, placing inverted arch abutment wall basisWith inverted arch, after the initial set of inverted arch concrete, placing inverted arch is filled;
9) lay hoop french drain difference laying water-proof coiled material, utilize the each hole of the disposable placing of lining template trolley for baffleArch wall lining cutting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410538377.2A CN104405419B (en) | 2014-10-13 | 2014-10-13 | The parallel median septum construction method of wall multiple-arch tunnel in implicit expression |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410538377.2A CN104405419B (en) | 2014-10-13 | 2014-10-13 | The parallel median septum construction method of wall multiple-arch tunnel in implicit expression |
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| CN104405419A CN104405419A (en) | 2015-03-11 |
| CN104405419B true CN104405419B (en) | 2016-05-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101737061B (en) * | 2009-12-24 | 2011-11-16 | 中国水电顾问集团华东勘测设计研究院 | Method for constructing double-arch tunnel by rebuilding and expanding existing single-hole tunnel |
| CN201696056U (en) * | 2010-03-04 | 2011-01-05 | 湖南省交通规划勘察设计院 | Improved structure of twin-arch tunnel with composite middle partition wall |
| CN201635745U (en) * | 2010-04-08 | 2010-11-17 | 安徽省交通规划设计研究院 | Ribbed-arch multi-arch tunnel |
| CN101864960B (en) * | 2010-05-17 | 2013-06-19 | 中铁二十局集团有限公司 | Carst region double-arch road tunnel construction method |
| CN102305077A (en) * | 2011-09-23 | 2012-01-04 | 中南大学 | Rapid construction method of large-section multi-arc tunnel |
| CN203685204U (en) * | 2013-12-20 | 2014-07-02 | 中铁二院重庆勘察设计研究院有限责任公司 | Spraying building concealed irregular middle wall combined type multiple-arch tunnel lining structure |
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