CN201696056U - Improved structure of twin-arch tunnel with composite middle partition wall - Google Patents
Improved structure of twin-arch tunnel with composite middle partition wall Download PDFInfo
- Publication number
- CN201696056U CN201696056U CN2010201224539U CN201020122453U CN201696056U CN 201696056 U CN201696056 U CN 201696056U CN 2010201224539 U CN2010201224539 U CN 2010201224539U CN 201020122453 U CN201020122453 U CN 201020122453U CN 201696056 U CN201696056 U CN 201696056U
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- partition wall
- middle partition
- arch tunnel
- twin
- arch
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Abstract
The utility model relates to the field of structural design of highway tunnels, in particular to a structural design of a twin-arch tunnel with a composite middle partition wall, which aims to solve the problems of the conventional twin-arch tunnel with an integral or composite middle partition wall that cracking in the fixing positions between primary supports and the middle partition wall is a common phenomenon, particularly for unsymmetrial loading tunnels and tunnels in soft and weak geologic zones, and that the cracking of secondary linings even happens to some twin-arch tunnels after the construction of the secondary linings. The structure is characterized in that the primary supports and the secondary linings of the conventional twin-arch tunnel with the composite middle partition wall are independently shaped into rings, and joints in the fixing positions between the middle partition wall and the primary supports or the secondary linings are removed. The utility model can facilitate the construction, guarantee the construction quality, and effectively prevent the cracking of the primary supports and the arch haunches of the secondary linings.
Description
Technical field
The present invention relates to highway tunnel structure design class, specifically relate to a kind of structure design of combined type mid-board multiple-arch tunnel.
Background technology
At present, multiple-arch tunnel has monolithic mid-board shown in Figure 1 and two kinds of patterns of combined type mid-board shown in Figure 2.Wherein 4. the mid-board of monolithic mid-board multiple-arch tunnel is that Integratively is built, the preliminary bracing in hole, the multiple-arch tunnel left and right sides 3. with secondary lining 1. all be fixed in mid-board 4. on.The preliminary bracing of combined type mid-board multiple-arch tunnel 3. be fixed in mid-board 4. on, secondary lining is independent Cheng Huan 1..In the middle of the Road Multiple Arch Tunnel of having implemented, no matter monolithic mid-board multiple-arch tunnel still is a combined type mid-board multiple-arch tunnel, supporting in the early stage 3. with the 4. haunch position of bearing of mid-board, cracking phenomena often appears, especially general for unsymmetrial loading tunnel and geology weak broken tunnel.1. cracking phenomena of secondary lining also appears in the multiple-arch tunnel that has even after 1. secondary lining has applied.Trace it to its cause, preliminary bracing 3. or secondary lining 1. with mid-board 4. the joint of bearing apply difficulty, construction quality is difficult to guarantee.
Summary of the invention
For solving the problem that preliminary bracing of conventional multiple-arch tunnel structure and mid-board bearing are prone to cracking, 1. 3. the preliminary bracing of conventional combined type mid-board all be arranged to ring separately with secondary lining, remove the 4. joint of bearing of preliminary bracing and secondary lining and mid-board.Lay waterproofing course 2. between supporting in the early stage and the secondary lining.Apply secondary lining at last 1..As shown in Figure 3, this structure facility of not only constructing, construction quality can be guaranteed, can also effectively prevent preliminary bracing 3. with the 1. generation of haunch position cracking phenomena of secondary lining.
Description of drawings
Fig. 1 is a monolithic mid-board multiple-arch tunnel profile;
Fig. 2 is a combined type mid-board multiple-arch tunnel profile;
Fig. 3 is a modified combined type mid-board multiple-arch tunnel profile.
1 represents secondary lining among the figure, and 2 represent waterproofing course, and 3 represent preliminary bracing, and 4 represent mid-board.
The specific embodiment
In the practice of construction process, mid-board 4. apply finish after, 3. the preliminary bracing of combined type mid-board directly is supported on the basis, form that annular is closed to be supported.Supporting in the early stage 3. and secondary lining lay waterproofing course 2. between 1..Apply secondary lining at last 1..
Claims (1)
1. a modified combined type mid-board multiple-arch tunnel structure is characterized in that: the preliminary bracing and the secondary lining of combined type mid-board all are arranged to independently become ring structure, between supporting in the early stage and the secondary lining waterproofing course are set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201224539U CN201696056U (en) | 2010-03-04 | 2010-03-04 | Improved structure of twin-arch tunnel with composite middle partition wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201224539U CN201696056U (en) | 2010-03-04 | 2010-03-04 | Improved structure of twin-arch tunnel with composite middle partition wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696056U true CN201696056U (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201224539U Expired - Fee Related CN201696056U (en) | 2010-03-04 | 2010-03-04 | Improved structure of twin-arch tunnel with composite middle partition wall |
Country Status (1)
| Country | Link |
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| CN (1) | CN201696056U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182469A (en) * | 2011-05-04 | 2011-09-14 | 中铁三局集团有限公司 | Construction method for preventing cracking of second lining of middle cavity of large span tunnel |
| CN102305077A (en) * | 2011-09-23 | 2012-01-04 | 中南大学 | Rapid construction method of large-section multi-arc tunnel |
| CN102797477A (en) * | 2012-08-10 | 2012-11-28 | 中国建筑第四工程局有限公司 | Method for preventing partition from biasing in tunnel |
| CN104405419A (en) * | 2014-10-13 | 2015-03-11 | 中铁二院重庆勘察设计研究院有限责任公司 | Parallel middle separation wall construction method for hidden type middle wall multi-arch tunnel |
| CN104612704A (en) * | 2015-01-08 | 2015-05-13 | 云南省交通规划设计研究院 | Middle-wall-free multi-arch tunnel |
| CN113931169A (en) * | 2021-11-03 | 2022-01-14 | 中建五局土木工程有限公司 | Bias multi-arch tunnel portal soft foundation zone combined structure and construction method |
-
2010
- 2010-03-04 CN CN2010201224539U patent/CN201696056U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182469A (en) * | 2011-05-04 | 2011-09-14 | 中铁三局集团有限公司 | Construction method for preventing cracking of second lining of middle cavity of large span tunnel |
| CN102305077A (en) * | 2011-09-23 | 2012-01-04 | 中南大学 | Rapid construction method of large-section multi-arc tunnel |
| CN102797477A (en) * | 2012-08-10 | 2012-11-28 | 中国建筑第四工程局有限公司 | Method for preventing partition from biasing in tunnel |
| CN102797477B (en) * | 2012-08-10 | 2015-05-27 | 中国建筑第四工程局有限公司 | Method for preventing partition from biasing in tunnel |
| CN104405419A (en) * | 2014-10-13 | 2015-03-11 | 中铁二院重庆勘察设计研究院有限责任公司 | Parallel middle separation wall construction method for hidden type middle wall multi-arch tunnel |
| CN104612704A (en) * | 2015-01-08 | 2015-05-13 | 云南省交通规划设计研究院 | Middle-wall-free multi-arch tunnel |
| CN113931169A (en) * | 2021-11-03 | 2022-01-14 | 中建五局土木工程有限公司 | Bias multi-arch tunnel portal soft foundation zone combined structure and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20190304 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |