CN203626853U - Expansive rock area tunnel inverted arch reinforcement device - Google Patents
Expansive rock area tunnel inverted arch reinforcement device Download PDFInfo
- Publication number
- CN203626853U CN203626853U CN201320821356.2U CN201320821356U CN203626853U CN 203626853 U CN203626853 U CN 203626853U CN 201320821356 U CN201320821356 U CN 201320821356U CN 203626853 U CN203626853 U CN 203626853U
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- Prior art keywords
- inverted arch
- reinforcement device
- arch
- tunnel
- construction
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- 239000011435 rock Substances 0.000 title claims abstract description 14
- 230000002787 reinforcement Effects 0.000 title abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 230000007423 decrease Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 14
- 238000005336 cracking Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 238000007569 slipcasting Methods 0.000 abstract 3
- 238000005266 casting Methods 0.000 abstract 1
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 241000231739 Rutilus rutilus Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model specifically relates to an expansive rock area tunnel inverted arch reinforcement device, which solves the problems that when an arch-exchanging method is adopted to prevent a tunnel inverted arch from cracking, construction difficulty is great, construction efficiency is low and normal operation of a highway is influenced]. The expansive rock area tunnel inverted arch reinforcement device comprises a slip casting guide pipe passing through two arch angles of the inverted arch and being arranged downward at a certain angle and channel steels arranged at the two domes of the inverted arch and distributed front and back. A tail part of the casting pipe is provided with a conical structure with a progressively-decreased diameter and a slip casting hole in the shape of a plum blossom is arranged on a side wall of the slip casting pipe. A plurality of groups of spaced support crossbeams are fixed between the two channel steels. Each group of the support crossbeams is made of three I18 steel sections. The reinforcement device of the utility model has the advantages of reasonable and reliable design, easy construction, fast construction progress, low engineering cost and short traffic influence time. The reinforcement device effectively enhances intensity and stability of the expansive surrounding rock and minimizes horizontal convergence deformation of the tunnel.
Description
Technical field
The utility model relates to tunnel reinforcement device, is specially a kind of Expansive Rock Regions tunnel invert bracing means.
Background technology
Inverted arch cracking in Expansive Rock Regions is one of common disease of highway tunnel, not only causes cracking and protuberance distortion at the bottom of tunnel, tunnel lining structure is deformed and destroy, and likely causes tunnel entirety unstability when serious, jeopardizes operation security.
Normal employing changed the punishment of arch method at present.Change arch and be and process highway tunnel in construction and the effective prophylactico-therapeutic measures of one of the raw serious plant disease of operation layback roach, but its techniqueflow complexity, difficulty of construction is large, construction speed is slow, engineering cost is high, blocking-up traffic time is long, has influence on the normal operation of speedway, causes larger economic loss and social influence.
Summary of the invention
The utility model to change arch method control tunnel invert cracking and has that difficulty of construction is large, efficiency of construction low and affect the problem that speedway is normally runed in order to solve to adopt, and a kind of Expansive Rock Regions tunnel invert bracing means is provided.
The utility model is to adopt following technical scheme to realize: Expansive Rock Regions tunnel invert bracing means, comprise that being through inverted arch two encircles the grouting pipe of angle place and angled oblique lower distribution and be arranged on inverted arch two channel-section steel that encircles angle place and front and back distribution, grouting pipe afterbody is the cone structure that diameter successively decreases, and grouting pipe sidewall has plum blossom-shaped injected hole, between two channel-section steels, be fixed with some groups of supporting traverses spaced apart, every group of supporting traverse is made up of three I18 shaped steel.
By grouting pipe is set, tunnel arch springing, inverted arch base country rock are carried out to grouting and reinforcing, and reduce the distortion of tunnel horizontal convergence by supporting traverse, overcome to adopt and changed arch method control tunnel invert cracking and have that difficulty of construction is large, efficiency of construction low and affect the problem that speedway is normally runed.
The utility model reasonable in design is reliable, intensity and the stability of dilatancy country rock are effectively improved, tunnel arch springing and arch plastic zone of surrounding rock, the end are obviously reduced, effectively reduced the stressed of inverted arch liner structure and distortion, guaranteed the stable and safety of tunnel structure, and can effectively reduce tunnel horizontal convergence distortion, the anti-transversal deformability and the stability that significantly improve liner structure, have difficulty of construction little, and construction speed is fast, engineering cost is low, and few advantage of traffic impact time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-grouting pipe, 2-channel-section steel, 3-supporting traverse.
The specific embodiment
Expansive Rock Regions tunnel invert bracing means, comprise that being through inverted arch two encircles the grouting pipe 1 of angle place and angled oblique lower distribution and be arranged on inverted arch two channel-section steel 2 that encircles angle place and front and back distribution, grouting pipe 1 afterbody is the cone structure that diameter successively decreases, and grouting pipe 1 sidewall has plum blossom-shaped injected hole, between two channel-section steels 2, be fixed with some groups of supporting traverses 3 spaced apart, every group of supporting traverse 3 is made up of three I18 shaped steel.
In specific implementation process, the diameter of grouting pipe 1 is 42mm, and inverted arch Gong Jiao both sides are provided with three, and the fore-and-aft clearance of grouting pipe 1 is 100cm, and length is 5m, and firm with the steel supporting welding of Tunnel, and entirety is stressed; The diameter of injected hole is 8mm, and does not establish injected hole in grouting pipe 1 afterbody 1.2m, and grouting pressure is 1.0-1.5Mpa; For reducing the impact on traffic, grouting and reinforcing adopts half range construction.
Cut pavement cracking part, the fore-and-aft clearance of every group of supporting traverse 3 is 5m; Adopt the wrapping of pitch felt at transverse drain and longitudinal drainage union place.
Claims (1)
1. an Expansive Rock Regions tunnel invert bracing means, it is characterized in that: comprise the grouting pipe (1) that is through inverted arch two and encircles angle place and angled oblique lower distribution and be arranged on inverted arch two channel-section steel (2) that encircles angle place and front and back distribution, grouting pipe (1) afterbody is the cone structure that diameter successively decreases, and grouting pipe (1) sidewall has plum blossom-shaped injected hole, between two channel-section steels (2), be fixed with some groups of supporting traverses spaced apart (3), every group of supporting traverse (3) is made up of three I18 shaped steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320821356.2U CN203626853U (en) | 2013-12-16 | 2013-12-16 | Expansive rock area tunnel inverted arch reinforcement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320821356.2U CN203626853U (en) | 2013-12-16 | 2013-12-16 | Expansive rock area tunnel inverted arch reinforcement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203626853U true CN203626853U (en) | 2014-06-04 |
Family
ID=50813342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320821356.2U Expired - Lifetime CN203626853U (en) | 2013-12-16 | 2013-12-16 | Expansive rock area tunnel inverted arch reinforcement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203626853U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963696A (en) * | 2015-07-28 | 2015-10-07 | 中国电建集团成都勘测设计研究院有限公司 | Construction method for arching tunnel bottom |
| CN105781592A (en) * | 2015-12-24 | 2016-07-20 | 山东科技大学 | Reinforcing treatment technique for combined pile foundation groups of bottom slab of deep large underground chamber |
| CN108038305A (en) * | 2017-12-08 | 2018-05-15 | 重庆大学 | A kind of anhydrite tunnel reliability analysis method for considering expansion and developing |
| CN111577334A (en) * | 2020-05-20 | 2020-08-25 | 招商局重庆交通科研设计院有限公司 | Operating tunnel inverted arch repairing method |
-
2013
- 2013-12-16 CN CN201320821356.2U patent/CN203626853U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963696A (en) * | 2015-07-28 | 2015-10-07 | 中国电建集团成都勘测设计研究院有限公司 | Construction method for arching tunnel bottom |
| CN105781592A (en) * | 2015-12-24 | 2016-07-20 | 山东科技大学 | Reinforcing treatment technique for combined pile foundation groups of bottom slab of deep large underground chamber |
| CN108038305A (en) * | 2017-12-08 | 2018-05-15 | 重庆大学 | A kind of anhydrite tunnel reliability analysis method for considering expansion and developing |
| CN108038305B (en) * | 2017-12-08 | 2020-05-26 | 重庆大学 | Anhydrite tunnel reliability analysis method considering expansion evolution |
| CN111577334A (en) * | 2020-05-20 | 2020-08-25 | 招商局重庆交通科研设计院有限公司 | Operating tunnel inverted arch repairing method |
| CN111577334B (en) * | 2020-05-20 | 2022-05-17 | 招商局重庆交通科研设计院有限公司 | Operating tunnel inverted arch repairing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term |