CN204738817U - Flexible supporting construction pattern in tunnel - Google Patents
Flexible supporting construction pattern in tunnel Download PDFInfo
- Publication number
- CN204738817U CN204738817U CN201520318248.2U CN201520318248U CN204738817U CN 204738817 U CN204738817 U CN 204738817U CN 201520318248 U CN201520318248 U CN 201520318248U CN 204738817 U CN204738817 U CN 204738817U
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- tunnel
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Abstract
The utility model discloses a flexible supporting construction pattern in tunnel, including cavity slip casting stock, compressibility steel bow member, foam concrete, waterproof layer, secondary lining and C15 slabstone concrete, cavity slip casting stock sets up in the country rock at tunnel vault and both sides arch wall position, compressibility steel bow member and secondary lining stromatolite formula set up on the tunnel country rock, compressibility steel bow member sets up on the tunnel country rock, secondary lining then sets up on compressible steel bow member, foam concrete then fills between compressibility steel bow member and country rock, the waterproof layer is then laid between compressibility steel bow member and secondary lining, and C15 slabstone concrete filling is on the compressibility steel bow member at inverted arch position. The utility model discloses can be better be applicable to high crustal stress, weak broken country rock tunnel, effectively prevent the emergence of diseases such as its lining cutting fracture, basement unstability, local landslide, better economic benefits and social have.
Description
Technical field
The utility model belongs to tunnels and underground engineering field, is specifically related to a kind of tunnel flexible supporting structure pattern.
Background technology
In recent years, along with the development of China's transport development cause, pass through high-ground stress, weak broken wall rock stratum tunnel get more and more, bring great challenge to China's Tunnel Design, construction, maintenance.High-ground stress surrounding rock tunnel due to its structural stress higher, in work progress, stress release rate is comparatively large, if supporting and protection structure pattern is unreasonable, the disease such as Lining cracks, large deformation unstability very easily occurs; On the other hand, soft rock tunnel self is poor, very easily wall rock destabilization occurs, meanwhile, normal containing dilatant mineral composition in soft rock, under chance water condition, there is turgescence effect, very easily cause the diseases such as Tunnel Base unstability, Lining cracks, the safety of serious threat tunnel construction and operation.
For high-ground stress, soft rock tunnel, the scheme that traditional supporting and protection structure adopts " resisting stubbornly for strong ", namely strengthens support rigidity, adopts large model shaped steel and encrypt its spacing, and improve the early stage rigidity of sprayed mortar, emphasize the promptness of supporting; But this supporting and protection structure pattern is flexible not enough, and deflection is less, effectively can not discharge pressure from surrounding rock, very easily causes the disease such as Lining cracks, substrate unstability, can not adapt to the development of modern tunnel construction technology.
Therefore, for problems of the prior art, need badly and provide a kind of tunnel flexible supporting structure pattern to seem particularly important.
Utility model content
The purpose of this utility model is the deficiency existed for prior art, provides a kind of tunnel flexible supporting structure pattern, comprises hollow grouting anchor, compressibility steel arch-shelf, foam concrete, waterproofing course, secondary lining and C15 sheet stone concrete; Described hollow grouting anchor is arranged in the country rock at tunnel vault and arch wall position, both sides; Described compressibility steel arch-shelf and secondary lining laminated type are arranged on tunnel surrounding, and described compressibility steel arch-shelf is arranged on tunnel surrounding, and described secondary lining is then arranged on compressible steel arch-shelf; Described foam concrete is then filled between compressibility steel arch-shelf and country rock; Waterproofing course is then laid between compressibility steel arch-shelf and secondary lining; And described C15 slabstone Concrete Filled is on the compressibility steel arch-shelf at inverted arch position.
As preferably, described hollow grouting anchor is symmetrically arranged in the country rock at tunnel vault and arch wall position, both sides, and the length of this hollow grouting anchor is 3m, and diameter is 28mm, and circumferential distance is 5m, and longitudinal pitch is 1.5m.
Hollow grouting anchor stretches in country rock by vault, reinforces further the fragmentation preventing weak surrounding rock, the position being simultaneously symmetrical arranged hollow grouting anchor and the size rationally arranging anchor pole also very important.
As preferably, described compressibility steel arch-shelf is pulled formula hoop tool by the U-shaped steel of the U-shaped steel in upper strata and lower floor and card and is formed; The U-shaped steel of described upper and lower layer pulls formula hoop tool superposition overlap joint by card, and both can produce relative movement.
As preferably, the U-shaped steel of described upper and lower layer is U25 shaped steel; The circumferential distance that formula hoop tool pulled by described card is 1.5m.
Compressibility steel arch-shelf is owing to forming by upper and lower two-layer U-shaped steel overlap joint, and can produce small relative movement, increase the deformation allowance of tunnel initial-stage, effective and country rock compatible deformation, has the stress of the release country rock of controlling.
As preferably, described foam concrete is flyash, haydite, cement, water, carbon fiber, water reducing agent mixed preparing form, its density should≤900kg/m
3, modulus of elasticity answers≤300MPa.
Foam concrete, mainly in order to coordinate compressibility steel arch-shelf and country rock compatible deformation, being formed according to certain ratio mixed preparing by flyash, haydite, cement, water, carbon fiber, water reducing agent, having good compatible deformation ability.
As preferably, described C15 sheet stone concrete is cement, sand, rubble mixed preparing form, and its slabstone thickness answers > 15cm, and slabstone content is between 20% ~ 30%.
C15 sheet stone concrete is mainly in order to prevent Groundwater infiltration inverted arch position, and avoid producing bulking effect, therefore sheet stone concrete is cement, sand, rubble form according to certain ratio mixed preparing, has good water resistance.
Beneficial effect: the utility model has the following advantages compared to traditional cover arch of tunnel:
Construction sequence of the present utility model is simple, and required cost is lower, workable, mechanical property is better, utilize compressibility steel arch-shelf and foam concrete effectively can increase the deformation allowance of Tunnel, and make itself and country rock compatible deformation, have the release surrouding rock stress of controlling; Simultaneously, the utility model utilizes tunneling boring to lay waterproofing course and fills C15 sheet stone concrete at inverted arch position, effectively prevent Groundwater infiltration inverted arch position, it is avoided to produce " turgescence effect ", therefore, the utility model can be applicable in high-ground stress, weak broken wall rock tunnel preferably, effectively prevents the generation of the diseases such as its Lining cracks, substrate unstability, local collapse, has good economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of compressibility steel arch-shelf in the utility model;
Wherein, 1-hollow grouting anchor, 2-compressibility steel arch-shelf, 3-foam concrete, 4-waterproofing course, 5-secondary lining, 6-C15 sheet stone concrete, the U-shaped steel in 21-upper strata, the U-shaped steel of 22-lower floor, 23-card cable formula hoop tool.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, the present embodiment is implemented under premised on technical solutions of the utility model, should understand these embodiments and only be not used in restriction scope of the present utility model for illustration of the utility model.
As depicted in figs. 1 and 2, a kind of tunnel flexible supporting structure pattern, comprises hollow grouting anchor 1, compressibility steel arch-shelf 2, foam concrete 3, waterproofing course 4, secondary lining 5 and C15 sheet stone concrete 6.
Hollow grouting anchor 1 is arranged in the country rock at tunnel vault and arch wall position, both sides; And hollow grouting anchor 1 is symmetrically arranged in the country rock at tunnel vault and arch wall position, both sides, and the length of this hollow grouting anchor 1 is 3m, and diameter is 28mm, and circumferential distance is 5m, and longitudinal pitch is 1.5m.
Compressibility steel arch-shelf 2 and secondary lining 5 laminated type are arranged on tunnel surrounding, and described compressibility steel arch-shelf 2 is arranged on tunnel surrounding, and described secondary lining 5 is arranged on compressible steel arch-shelf 2; Described foam concrete 3 is filled between compressibility steel arch-shelf 2 and country rock; Foam concrete 3 is flyash, haydite, cement, water, carbon fiber, water reducing agent mixed preparing form, and its density answers≤900kg/m
3, modulus of elasticity answers≤300MPa.
Waterproofing course 4 is laid between compressibility steel arch-shelf 2 and secondary lining 5; And described C15 sheet stone concrete 6 is filled on the compressibility steel arch-shelf 2 at inverted arch position; C15 sheet stone concrete 6 is wherein cement, sand, rubble mixed preparing form, and its slabstone thickness answers > 15cm, and slabstone content should between 20% ~ 30%.
Compressibility steel arch-shelf 2 is pulled formula hoop tool 23 by the U-shaped steel 22 of the U-shaped steel in upper strata 21 and lower floor and card and is formed; The U-shaped steel of described upper and lower layer pulls formula hoop tool 23 superposition overlap joint by card, and both can produce relative movement, and the U-shaped steel of upper and lower layer is U25 shaped steel; The circumferential distance that formula hoop tool 23 pulled by card is 1.5m.
Construction sequence of the present utility model is simple, and required cost is lower, workable, mechanical property is better, utilize compressibility steel arch-shelf and foam concrete effectively can increase the deformation allowance of Tunnel, and make itself and country rock compatible deformation, have the release surrouding rock stress of controlling; Simultaneously, the utility model utilizes tunneling boring to lay waterproofing course and fills C15 sheet stone concrete at inverted arch position, effectively prevent Groundwater infiltration inverted arch position, it is avoided to produce " turgescence effect ", therefore, the utility model can be applicable in high-ground stress, weak broken wall rock tunnel preferably, effectively prevents the generation of the diseases such as its Lining cracks, substrate unstability, local collapse, has good economic benefit and social benefit.
Claims (6)
1. a tunnel flexible supporting structure pattern, is characterized in that: comprise hollow grouting anchor (1), compressibility steel arch-shelf (2), foam concrete (3), waterproofing course (4), secondary lining (5) and C15 sheet stone concrete (6); Described hollow grouting anchor (1) is arranged in the country rock at tunnel vault and arch wall position, both sides; Described compressibility steel arch-shelf (2) and secondary lining (5) laminated type are arranged on tunnel surrounding, and described compressibility steel arch-shelf (2) is arranged on tunnel surrounding, and described secondary lining (5) is then arranged on compressible steel arch-shelf (2); Described foam concrete (3) is then filled between compressibility steel arch-shelf (2) and country rock; Waterproofing course (4) is then laid between compressibility steel arch-shelf (2) and secondary lining (5); And described C15 sheet stone concrete (6) is filled on the compressibility steel arch-shelf (2) at inverted arch position.
2. a kind of tunnel flexible supporting structure pattern according to claim 1, it is characterized in that: described hollow grouting anchor (1) is symmetrically arranged in the country rock at tunnel vault and arch wall position, both sides, and the length of this hollow grouting anchor (1) is 3m, diameter is 28mm, circumferential distance is 5m, and longitudinal pitch is 1.5m.
3. a kind of tunnel flexible supporting structure pattern according to claim 1, is characterized in that: described compressibility steel arch-shelf (2) is pulled formula hoop tool (23) by the U-shaped steel in upper strata (21) and lower floor U-shaped steel (22) and card and formed; Described upper and lower stratotype steel pulls formula hoop tool (23) superposition overlap joint by card, and both can produce relative movement.
4. a kind of tunnel flexible supporting structure pattern according to claim 3, is characterized in that: the U-shaped steel of described upper and lower layer is U25 shaped steel; The circumferential distance that formula hoop tool (23) pulled by described card is 1.5m.
5. a kind of tunnel flexible supporting structure pattern according to claim 1, is characterized in that: described foam concrete (3) is flyash, haydite, cement, water, carbon fiber, water reducing agent mixed preparing form, its density should≤900kg/m
3, modulus of elasticity should≤300 MPa.
6. a kind of tunnel flexible supporting structure pattern according to claim 1, it is characterized in that: described C15 sheet stone concrete (6) is cement, sand, rubble mixed preparing form, its slabstone thickness answers > 15cm, and slabstone content is between 20% ~ 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520318248.2U CN204738817U (en) | 2015-05-16 | 2015-05-16 | Flexible supporting construction pattern in tunnel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520318248.2U CN204738817U (en) | 2015-05-16 | 2015-05-16 | Flexible supporting construction pattern in tunnel |
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| CN204738817U true CN204738817U (en) | 2015-11-04 |
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| CN201520318248.2U Expired - Fee Related CN204738817U (en) | 2015-05-16 | 2015-05-16 | Flexible supporting construction pattern in tunnel |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781574A (en) * | 2016-04-19 | 2016-07-20 | 长安大学 | Fabricated tunnel support system and construction method thereof |
| CN105888697A (en) * | 2016-04-08 | 2016-08-24 | 江西博慧工程技术服务有限公司 | Fault-crossing tunnel deformation coordination type supporting structure and construction method thereof |
| CN105937399A (en) * | 2016-05-31 | 2016-09-14 | 中国科学院武汉岩土力学研究所 | Coordination deformation support system suitable for soft-rock large-deformation tunnel, and support method of support system |
| CN106401605A (en) * | 2016-12-16 | 2017-02-15 | 安徽理工大学 | U-shaped steel reinforced composite anchor net support structure for high-stress soft rock tunnel of deep well and construction method thereof |
| CN106401612A (en) * | 2016-12-01 | 2017-02-15 | 河北工程大学 | Precast steel plate supporting structure in tunnel |
| CN106988759A (en) * | 2017-06-02 | 2017-07-28 | 中南林业科技大学 | Lining also serves as the tunnel structure of buffer layer at the beginning of foam concrete |
| CN109209443A (en) * | 2018-11-12 | 2019-01-15 | 山东大学 | A kind of construction method of breaking surrounding rock tunnel structure |
| CN109458197A (en) * | 2018-12-30 | 2019-03-12 | 中国电建集团华东勘测设计研究院有限公司 | A kind of classification yield supporting system |
| CN109611116A (en) * | 2019-01-28 | 2019-04-12 | 中铁第四勘察设计院集团有限公司 | A kind of the pipe-plate lining structure and its construction method of suitable for surrounding rock large deformation |
| CN110630283A (en) * | 2019-09-12 | 2019-12-31 | 山东大学 | Three-layer supporting structure suitable for double-arch tunnel and construction method |
| CN110645012A (en) * | 2019-11-11 | 2020-01-03 | 中铁工程装备集团有限公司 | Tunnel segment capable of deforming and releasing energy and using method thereof |
| CN110985079A (en) * | 2019-11-25 | 2020-04-10 | 辽宁工程技术大学 | Energy-absorbing impact-resistant roadway support method |
| CN111648793A (en) * | 2020-04-24 | 2020-09-11 | 高军 | Small clear distance overlapping tunnel construction method |
| CN113027488A (en) * | 2021-04-07 | 2021-06-25 | 中交一公局集团有限公司 | Support method small-radius lining structure and construction method |
| CN113982656A (en) * | 2021-11-17 | 2022-01-28 | 山东建筑大学 | Steel-film composite restrained arch frame for roadway (tunnel) support and construction process |
| CN114991823A (en) * | 2022-07-12 | 2022-09-02 | 成都理工大学 | Asymmetric large-deformation double-layer primary support structure for extremely-high ground stress soft rock tunnel |
-
2015
- 2015-05-16 CN CN201520318248.2U patent/CN204738817U/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888697A (en) * | 2016-04-08 | 2016-08-24 | 江西博慧工程技术服务有限公司 | Fault-crossing tunnel deformation coordination type supporting structure and construction method thereof |
| CN105888697B (en) * | 2016-04-08 | 2018-05-29 | 江西省路桥工程集团有限公司 | A kind of Cross-fault leveling tunnel deformation cooperative type supporting construction and its construction method |
| CN105781574A (en) * | 2016-04-19 | 2016-07-20 | 长安大学 | Fabricated tunnel support system and construction method thereof |
| CN105937399A (en) * | 2016-05-31 | 2016-09-14 | 中国科学院武汉岩土力学研究所 | Coordination deformation support system suitable for soft-rock large-deformation tunnel, and support method of support system |
| CN106401612A (en) * | 2016-12-01 | 2017-02-15 | 河北工程大学 | Precast steel plate supporting structure in tunnel |
| CN106401605B (en) * | 2016-12-16 | 2019-04-30 | 安徽理工大学 | Deep-well high stress and soft rock mine roadway U-shaped steel enhances composite anchored net supporting construction and its construction method |
| CN106401605A (en) * | 2016-12-16 | 2017-02-15 | 安徽理工大学 | U-shaped steel reinforced composite anchor net support structure for high-stress soft rock tunnel of deep well and construction method thereof |
| CN106988759A (en) * | 2017-06-02 | 2017-07-28 | 中南林业科技大学 | Lining also serves as the tunnel structure of buffer layer at the beginning of foam concrete |
| CN109209443A (en) * | 2018-11-12 | 2019-01-15 | 山东大学 | A kind of construction method of breaking surrounding rock tunnel structure |
| CN109458197A (en) * | 2018-12-30 | 2019-03-12 | 中国电建集团华东勘测设计研究院有限公司 | A kind of classification yield supporting system |
| CN109611116A (en) * | 2019-01-28 | 2019-04-12 | 中铁第四勘察设计院集团有限公司 | A kind of the pipe-plate lining structure and its construction method of suitable for surrounding rock large deformation |
| CN110630283B (en) * | 2019-09-12 | 2020-11-24 | 山东大学 | Three-layer supporting structure suitable for double-arch tunnel and construction method |
| CN110630283A (en) * | 2019-09-12 | 2019-12-31 | 山东大学 | Three-layer supporting structure suitable for double-arch tunnel and construction method |
| CN110645012A (en) * | 2019-11-11 | 2020-01-03 | 中铁工程装备集团有限公司 | Tunnel segment capable of deforming and releasing energy and using method thereof |
| CN110985079A (en) * | 2019-11-25 | 2020-04-10 | 辽宁工程技术大学 | Energy-absorbing impact-resistant roadway support method |
| CN111648793A (en) * | 2020-04-24 | 2020-09-11 | 高军 | Small clear distance overlapping tunnel construction method |
| CN111648793B (en) * | 2020-04-24 | 2022-03-04 | 高军 | Small clear distance overlapping tunnel construction method |
| CN113027488A (en) * | 2021-04-07 | 2021-06-25 | 中交一公局集团有限公司 | Support method small-radius lining structure and construction method |
| CN113982656A (en) * | 2021-11-17 | 2022-01-28 | 山东建筑大学 | Steel-film composite restrained arch frame for roadway (tunnel) support and construction process |
| CN113982656B (en) * | 2021-11-17 | 2024-01-09 | 山东建筑大学 | Steel-film composite constraint arch frame for roadway (tunnel) support and construction process |
| CN114991823A (en) * | 2022-07-12 | 2022-09-02 | 成都理工大学 | Asymmetric large-deformation double-layer primary support structure for extremely-high ground stress soft rock tunnel |
| CN114991823B (en) * | 2022-07-12 | 2024-03-12 | 成都理工大学 | Asymmetric large-deformation double-layer primary support structure of extremely high ground stress soft rock tunnel |
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| Date | Code | Title | Description |
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| 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: 20151104 Termination date: 20190516 |
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| CF01 | Termination of patent right due to non-payment of annual fee |