CN104405419A - Parallel middle separation wall construction method for hidden type middle wall multi-arch tunnel - Google Patents
Parallel middle separation wall construction method for hidden type middle wall multi-arch tunnel Download PDFInfo
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- CN104405419A CN104405419A CN201410538377.2A CN201410538377A CN104405419A CN 104405419 A CN104405419 A CN 104405419A CN 201410538377 A CN201410538377 A CN 201410538377A CN 104405419 A CN104405419 A CN 104405419A
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- hole
- preliminary bracing
- quarter
- steelframe
- lining
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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 DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
Abstract
The invention discloses a parallel middle separation wall construction method for a hidden type middle wall multi-arch tunnel. The parallel middle separation wall construction method comprises the steps of digging the left upper parts of a left hole and a right hole, and building a primary support and a temporary support; digging the left lower parts of the left hole and the right hole, and building a primary support and a temporary support; erecting inclined supports, and spraying and casting concrete in a middle wall lining steel frame and regions where the inclined supports are positioned; digging the right upper part of the right hole, and building a primary support; digging the right upper part of the left hole, and building a primary support; digging the right lower part of the right hole, and building a primary support; digging the right lower part of the left hole, and building a primary support. A hidden type middle wall compound multi-arch tunnel adopts a compound lining structure; a middle wall adopts a 'steel fiber concrete + profile steel frame' structural form, and the structure is different from the preliminary support of the first hole; no temporary support is retained in the middle wall, so that the construction steps can be reduced, and the investment can be saved; furthermore, the construction efficiency of the multi-arch tunnel is greatly improved, and the parallel middle separation wall construction method has a wide application prospect in long and large tunnels and urban tunnels.
Description
Technical field
The invention belongs to technical field of tunnel construction, specifically, the particularly parallel median septum construction method of wall multiple-arch tunnel in a kind of implicit expression.
Background technology
At present, the structural shape that domestic and international multiple-arch tunnel adopts to mainly contain in monolithic wall multiple-arch tunnel in wall multiple-arch tunnel and combined type.In monolithic wall multiple-arch tunnel due to difficulty of construction large, waterproof effect is poor, and structure durability is poor, seldom adopts at present.In common combined type, wall multiple-arch tunnel at present adopts maximum multiple-arch tunnel structural shapes, 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 technician have studied a lot of multiple-arch tunnel structure improved, wall temporary lining during these structures need mostly, or adopt leading hole two lining to go to resist pressure from surrounding rock, the construction method adopted can be divided into the extended method of central drift method, three-drift method, two holes method and first three class, and transform to two hole methods, reduce the impact of advanced hole on subsequent handling, to improve efficiency of construction.But wall excavates the problem disturbed other operations in all fundamentally not solving.
Therefore, the drawback of wall temporary lining waste of material and middle wall construction infection efficiency of construction during current multiple-arch tunnel engineering method exists, when bringing middle wall temporary lining to remove simultaneously the larger potential safety hazard of tool, guarded drainage weak effect and structure durability difference etc. problem, seriously constrain 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 construction method of wall multiple-arch tunnel in a kind of implicit expression.
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, is characterized in that comprising the following steps:
1) utilize a upper circulation supporting, excavate the upper left quarter in left and right hole, apply the preliminary bracing (1) of each hole upper left quarter, and form Zhong Qiang top steelframe (3); Apply top temporary lining (2) in the centre position on top, each hole simultaneously, the upper end of top temporary lining (2) is connected with the preliminary bracing (1) of corresponding hole upper left quarter;
2) lower left quarter in left and right hole is excavated, apply the preliminary bracing (4) of each hole lower left quarter, and form Zhong Qiang bottom steelframe (6), the preliminary bracing of each hole lower left quarter (4) is connected with the preliminary bracing (1) of upper left quarter, and Zhong Qiang bottom steelframe (6) and Zhong Qiang top steelframe (3) connect to form middle wall lining and build steelframe; Apply bottom temporary lining (5) in the centre position of bottom, each hole simultaneously, the lower end of bottom temporary lining (5) is connected with the preliminary bracing (4) of corresponding hole lower left quarter, the upper end of bottom temporary lining (5) and the lower end of top temporary lining (2) connect 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 on Zhong Qiang top steelframe (3), one end of diagonal brace (7) is connected with Zhong Qiang top steelframe (3), and the other end is connected with the preliminary bracing (1) of right hole upper left quarter; Then build in steelframe and concrete is built in the spray of diagonal brace (7) region at middle wall lining;
4) excavate right hole upper right quarter, apply the preliminary bracing (8) of right hole upper right quarter, the preliminary bracing of right hole upper right quarter (8) is connected with the preliminary bracing (1) of right hole upper left quarter;
5) left hole upper right quarter is excavated, apply the preliminary bracing (9) of left hole upper right quarter, the preliminary bracing of left hole upper right quarter (9) one end is connected with the preliminary bracing (1) of left hole upper left quarter, and the other end is connected with the preliminary bracing (1) of right hole upper left quarter;
6) right hole right lower quadrant is excavated, apply the preliminary bracing (10) of right hole right lower quadrant, the preliminary bracing of right hole right lower quadrant (10) one end is connected with the preliminary bracing (8) of right hole upper right quarter, and the other end is connected with the preliminary bracing (4) of right hole lower left quarter;
7) left hole right lower quadrant is excavated, apply the preliminary bracing (11) of left hole right lower quadrant, the preliminary bracing of left hole right lower quadrant (11) one end is connected with the preliminary bracing (4) of left hole lower left quarter, and the other end is connected with the preliminary bracing (4) of right hole lower left quarter;
8) after preliminary bracing stabilization, remove the interim steelframe that top temporary lining (2) forms with bottom temporary lining (5), then each hole inverted arch and abutment wall bottom splash guard is laid, 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 also difference laying water-proof coiled material, utilize the disposable placing of lining template trolley for baffle each hole arch wall lining cutting.
The invention has the beneficial effects as follows:
1, the present invention does not excavate middle drift, two cavity parallel constructions, the two interim mid-boards in hole are bordering on parallel, and Zhong Qiang space is synchronously excavated in alienation structure side, secondary erection steel bearing diagonal, middle wall concrete is built in secondary spray, the left base tunnel finally excavated get out of a predicament or an embarrassing situation country rock ensure in wall stability, the construction of two holes is relatively independent, disturbs little, can significantly improve Multi-arch Tunnel Construction efficiency, multiple-arch tunnel can be realized and fast construct.
2, the present invention is in conjunction with wall multiple-arch tunnel structure in implicit expression, first During Initial Stage Construction supporting and Zhong Qiang, finally apply waterproofing course and secondary lining, secondary liner structure is built after adopting independent guarded drainage system and uniform thickness in two tunnels, secondary lining does not experience repeatedly stress state, waterproofing system integrality is good, and secondary lining is not easy to crack, solves multiple-arch tunnel guarded drainage weak effect, structure durability is poor, efficiency of construction is low and invest high problem.
3, the present invention construct after structure there is good waterproofing system integrality, working security, structure durability and long-term safety, multiple-arch tunnel can be realized fast construct, there are significant engineering significance and economic results in society, have broad application prospects in major long tunnel and city tunnel.
Accompanying drawing explanation
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 the preliminary bracing 1 of each hole upper left quarter, and form Zhong Qiang top steelframe 3; Apply top temporary lining 2 in the centre position on top, each hole simultaneously, the upper end of top temporary lining 2 is connected with the preliminary bracing 1 of corresponding hole upper left quarter.
2) lower left quarter in left and right hole is excavated, apply the preliminary bracing 4 of each hole lower left quarter, and forming Zhong Qiang bottom steelframe 6, the preliminary bracing 4 of each hole lower left quarter is connected with the preliminary bracing 1 of upper left quarter, and Zhong Qiang bottom steelframe 6 and Zhong Qiang top steelframe 3 connect to form middle wall lining and build steelframe; Apply bottom temporary lining 5 in the centre position of bottom, each hole simultaneously, the lower end of bottom temporary lining 5 is connected with the preliminary bracing 4 of corresponding hole lower left quarter, the upper end of bottom temporary lining 5 and the lower end of top temporary lining 2 connect to form median septum, and the median septum in hole, left and right parallels; The preliminary bracing 1 in each hole, preliminary bracing 4, bottom temporary lining 5 are adjacent successively with top temporary lining 2, composition closed loop configuration.
3) arrange left low right high diagonal brace 7 in the upper right side of Zhong Qiang top steelframe 3, one end of diagonal brace 7 is connected with Zhong Qiang top steelframe 3, and the other end is connected with the preliminary bracing 1 of right hole upper left quarter; Then build in steelframe and concrete is built in the spray of diagonal brace 7 region at middle wall lining.
4) excavate right hole upper right quarter, apply the preliminary bracing 8 of right hole upper right quarter, the preliminary bracing 8 of right hole upper right quarter 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, preliminary bracing 9 one end of left hole upper right quarter is connected with the preliminary bracing 1 of left hole upper left quarter, and the other end is connected with the preliminary bracing 1 of right hole upper left quarter.
6) excavate right hole right lower quadrant, apply the preliminary bracing 10 of right hole right lower quadrant, preliminary bracing 10 one end of right hole right lower quadrant is connected with the preliminary bracing 8 of right hole upper right quarter, and the other end is connected with the preliminary bracing 4 of right hole lower left quarter.
7) excavate left hole right lower quadrant, apply the preliminary bracing 11 of left hole right lower quadrant, preliminary bracing 11 one end of left hole right lower quadrant is connected with the preliminary bracing 4 of left hole lower left quarter, and the other end is connected with the preliminary bracing 4 of right hole lower left quarter; The preliminary bracing skeleton of whole multiple-arch tunnel completes.
8) after preliminary bracing stabilization, remove the interim steelframe that top temporary lining 2 forms with bottom temporary lining 5, 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 also difference laying water-proof coiled material, utilize the disposable placing of lining template trolley for baffle each hole arch wall lining cutting.
In above operation, each preliminary bracing and temporary lining are steel frame construction; Step 8) remove interim steelframe after 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, apply the preliminary bracing (1) of each hole upper left quarter, and form Zhong Qiang top steelframe (3); Apply top temporary lining (2) in the centre position on top, each hole simultaneously, the upper end of top temporary lining (2) is connected with the preliminary bracing (1) of corresponding hole upper left quarter;
2) lower left quarter in left and right hole is excavated, apply the preliminary bracing (4) of each hole lower left quarter, and form Zhong Qiang bottom steelframe (6), the preliminary bracing of each hole lower left quarter (4) is connected with the preliminary bracing (1) of upper left quarter, and Zhong Qiang bottom steelframe (6) and Zhong Qiang top steelframe (3) connect to form middle wall lining and build steelframe; Apply bottom temporary lining (5) in the centre position of bottom, each hole simultaneously, the lower end of bottom temporary lining (5) is connected with the preliminary bracing (4) of corresponding hole lower left quarter, the upper end of bottom temporary lining (5) and the lower end of top temporary lining (2) connect 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 on Zhong Qiang top steelframe (3), one end of diagonal brace (7) is connected with Zhong Qiang top steelframe (3), and the other end is connected with the preliminary bracing (1) of right hole upper left quarter; Then build in steelframe and concrete is built in the spray of diagonal brace (7) region at middle wall lining;
4) excavate right hole upper right quarter, apply the preliminary bracing (8) of right hole upper right quarter, the preliminary bracing of right hole upper right quarter (8) is connected with the preliminary bracing (1) of right hole upper left quarter;
5) left hole upper right quarter is excavated, apply the preliminary bracing (9) of left hole upper right quarter, the preliminary bracing of left hole upper right quarter (9) one end is connected with the preliminary bracing (1) of left hole upper left quarter, and the other end is connected with the preliminary bracing (1) of right hole upper left quarter;
6) right hole right lower quadrant is excavated, apply the preliminary bracing (10) of right hole right lower quadrant, the preliminary bracing of right hole right lower quadrant (10) one end is connected with the preliminary bracing (8) of right hole upper right quarter, and the other end is connected with the preliminary bracing (4) of right hole lower left quarter;
7) left hole right lower quadrant is excavated, apply the preliminary bracing (11) of left hole right lower quadrant, the preliminary bracing of left hole right lower quadrant (11) one end is connected with the preliminary bracing (4) of left hole lower left quarter, and the other end is connected with the preliminary bracing (4) of right hole lower left quarter;
8) after preliminary bracing stabilization, remove the interim steelframe that top temporary lining (2) forms with bottom temporary lining (5), then each hole inverted arch and abutment wall bottom splash guard is laid, 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 also difference laying water-proof coiled material, utilize the disposable placing of lining template trolley for baffle each hole arch wall lining cutting.
Priority Applications (1)
| 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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| 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 true CN104405419A (en) | 2015-03-11 |
| CN104405419B CN104405419B (en) | 2016-05-18 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737061A (en) * | 2009-12-24 | 2010-06-16 | 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 |
| CN101864960A (en) * | 2010-05-17 | 2010-10-20 | 中铁二十局集团有限公司 | Carst region double-arch road tunnel construction method |
| 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 |
| 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 |
| 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 |
-
2014
- 2014-10-13 CN CN201410538377.2A patent/CN104405419B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737061A (en) * | 2009-12-24 | 2010-06-16 | 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 |
| CN101864960A (en) * | 2010-05-17 | 2010-10-20 | 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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| CN104405419B (en) | 2016-05-18 |
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