CN206174966U - Diversion tunnel's freeze proof bloated structure of heat preservation - Google Patents
Diversion tunnel's freeze proof bloated structure of heat preservation Download PDFInfo
- Publication number
- CN206174966U CN206174966U CN201621251532.3U CN201621251532U CN206174966U CN 206174966 U CN206174966 U CN 206174966U CN 201621251532 U CN201621251532 U CN 201621251532U CN 206174966 U CN206174966 U CN 206174966U
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- Prior art keywords
- frost heaving
- diversion tunnel
- concrete layer
- heaving resistant
- resistant structure
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Abstract
The application discloses diversion tunnel's freeze proof bloated structure of heat preservation includes the outer concrete layer who is formed by interior concrete layer, reinforcing bar stratum reticulare, the injection that forms to interior injection of laying in proper order, the freeze proof bloated composite bed of heat preservation that the polystyrene film sheet layer constitutes outward. The freeze proof bloated structure of this kind of compound incubation has the adaptation freeze thawing warp, keeps warm, expands and do not split, do not alleviate frozen swelling characteristic, can adapt to the great characteristics of the in cold areas difference in temperature. That develops is applicable to in cold areas diversion tunnel's freeze proof bloated structure of heat preservation, to the technological problem who solves in cold areas underground cavern, diversion tunnel engineering, promotes the integrated control technique of the cold district underground cavern rock mass calamity of china to have important engineering meaning and social.
Description
Technical field
The application belongs to technical field of buildings, specifically, is related to a kind of insulation frost heaving resistant structure of diversion tunnel.
Background technology
Substantial amounts of underground engineering must be built in extremely frigid zones, the large-scale development underground space and using the deep energy.
The season High-cold regions underground engineering problem of meeting is mostly aqueous, frost heave, weakness, broken, low intensity, stability difference ground ground
Layer.With the enforcement of strategy to develop western regions, it is expected to have considerable large-scale hydraulic power project within 10 years from now on and takes out
Water storage station enters the construction phase, wherein the overwhelming majority is designed with large-scale or large-scale underground cavities group as main building
Thing.According to incompletely statistics, by the end of the year 2010, the built span of China is being built in the underground workshop 15 of more than 20m
Have more than 20, in the middle of also some large underground holes are being planned and designed.
The nearest statistics of Japan Highway community and Japanese railway comprehensive technology research institute shows, Japan's 3800 railways in the whole nation
There are 1100 in tunnel because of freeze injury reason, during runing in the winter time traffic safety is injured.In vcehicular tunnel, only Hokkaido is regional
302 large-scale vcehicular tunnels in occur serious cold damage just up to 104, be elimination side walls ice and arch icicle, more
Tunnel is provided with electric heater unit, and the regulation expense of input is very surprising.And for example Xinjiang of China Tianshan Mountains 2# tunnels, because tunnel oozes
Drain as serious, leak freezes in the winter time again, it is impossible to which guarantee is normally open to traffic, and almost scraps at present；Gansu Qi Dao beam tunnels, due to
Gutter freezed and made tunnel drainage not smooth winter, caused lining cutting to produce frost heaving, induction lining concrete cracking, tunnel behind
Road seepage, icy on road, impact traffic safety.Produce the special engineering ground to area's Geotechnical Engineering of trembling with fear that has its source in of these problems
Matter environment and disaster formation understanding are inadequate.The bursting by freezing of the underground oil pipeline in Xinjiang of China area once caused huge economic damage
Lose.The appearance repeatedly of tunnel freeze thawing, causes building frost heaving failure, causes wall body to ftracture, and fall in flakes of plastering makes wall body complete
Lose bearing capacity and heat-insulating property；Frozen-thawed cycled can also cause the serious weathering inside Architectural Construction, so as to lose durability.
The numerous underground chamber in cold area, mine, the unstability of road slope, tunnel are also mainly due to rock mass under Freezing-Melting Condition
Freeze thawing, collapse, damage cracking causes, freeze thawing change alternating action can also cause mud-rock flow, slump so that landslide etc. one
Serial disaster.
In sum, will be faced with tunnel in the construction of underground chamber causes temperature Change to cause freeze thawing because of ventilation
It is alternately present, and then affects adjoining rock stability sex chromosome mosaicism.And at present both at home and abroad to area's cavern surrounding rocks engineering freezing-thawing disaster, the rock of trembling with fear
The achievement in research of the problems such as relation, subterranean body stability between the macromechanics-microstructure of body freeze thawing is less and compares
It is more scattered.With carrying out in a deep going way for strategy to develop western regions, the relevant issues built to area's underground chamber of trembling with fear are urgently to be resolved hurrily.Cause
This, with cold area's cavern surrounding rocks as research object, carries out cold area's underground chamber rock physicses mechanical characteristic and freeze thawing microcosmic is damaged
Hinder the research of mechanism, develop the insulation frost heaving resistant structure suitable for cold district diversion tunnel, for solving cold district
Lower cavern, the technical barrier of water diversion tunnel project, promote the integrated control technique of the cold area's cavern surrounding rocks disaster of China, have
Important engineering significance and social benefit.
The content of the invention
In view of this, technical problems to be solved in this application there is provided a kind of guarantor for cold district diversion tunnel
Warm frost heaving resistant structure.
The insulation frost heaving resistant structure of a kind of diversion tunnel, including the inner concrete that the injection laid successively from outside to inside is formed
Outer concrete layer, polystyrene film flaggy that layer, reinforcing bar stratum reticulare, injection are formed, the inner concrete layer, reinforcing bar stratum reticulare, spray
Penetrate outer concrete layer, the insulation frost heaving resistant composite bed of polystyrene film flaggy composition insulation frost heaving resistant structure to be formed.
Further, the insulation frost heaving resistant structure of diversion tunnel as above, the complex heat-preservation frost heaving resistant layer is per 30-
Expansion joint is reserved between 50m, a width of 3-5cm is stitched, flexible compressibility material is filled in expansion joint.
Further, the insulation frost heaving resistant structure of diversion tunnel as above, the flexible compressibility material is
Polyurethane sealant or flexible resin.
Further, the insulation frost heaving resistant structure of diversion tunnel as above, the thickness of the inner concrete layer is 10-
12cm。
Further, the insulation frost heaving resistant structure of diversion tunnel as above, the reinforcing bar of the reinforcing bar stratum reticulare adopts φ 8
Reinforcing bar, size of mesh opening is 10 × 10cm, or 20 × 20cm.
Further, the insulation frost heaving resistant structure of diversion tunnel as above, the thickness of the outer concrete layer is 3-
5cm。
Further, the insulation frost heaving resistant structure of diversion tunnel as above, the thickness of the polystyrene film flaggy
Spend for 3-5cm.
Further, the insulation frost heaving resistant structure of diversion tunnel as above, the inner concrete layer, outer concrete layer
Concrete grade be C30, the seepage-resistant grade of gunite concrete is not less than W8.
Compared with prior art, the application can be obtained including following technique effect：
This complex heat-preservation frost heaving resistant structure has adaptation freeze thawing deformation, insulation, characteristic that is swollen and not splitting, mitigate frost heave,
Adapt to the cold district temperature difference it is larger the characteristics of.The insulation frost heaving resistant structure suitable for cold district diversion tunnel developed,
For the technical barrier for solving cold district underground chamber, water diversion tunnel project, promote the cold area's cavern surrounding rocks disaster of China
Integrated control technique, with important engineering significance and social benefit.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding of the present application, constitutes the part of the application, this Shen
Schematic description and description please does not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is the structural representation of the embodiment of the present application；
Fig. 2 is the complex heat-preservation frost heaving resistant structure section Rotating fields schematic diagram of the embodiment of the present application.
Specific embodiment
Describe presently filed embodiment in detail below in conjunction with drawings and Examples, thereby how the application is applied
Technological means come solve technical problem and reach technology effect realize that process can fully understand and implement according to this.
As shown in Figure 1 and Figure 2, the insulation frost heaving resistant structure of the diversion tunnel that the application is provided, is equipped with tunnel 1 and draws
The insulation frost heaving resistant structure of water tunnel, the structure includes insulation frost heaving resistant composite bed 2, the insulation frost heaving resistant composite bed 2 by from
The outer concrete layer 23, polyphenyl that the inner concrete layer 21 of the outer injection formation laid successively in, reinforcing bar stratum reticulare 22, injection are formed
Vinyl film flaggy 24 is constituted.
According to achievement in research and final analysis, from extruded polystyrene thin web (XPS)+concrete spray coating linked network knot
Composite lining structure of the structure as insulation frost heaving resistant.This complex heat-preservation frost heaving resistant structure is applied to cold district or Nian Jiwen
The larger circle of difference, gateway opening shape and shape of a hoof diversion tunnel or tunnel.The cavern for needing lining cutting is handled well.
Work progress:
1st, hair hole laid inside extruded polystyrene thin web 24 (insulation construction) completed in excavation, extruded polystyrene
The thickness of thin web 24 is 3-5cm, and according to the size of cavern the size of extruded polystyrene thin web laying is adjusted, general 1.0
× 1.0m or 1.0 × 1.5m；When laying in circular, gateway opening shape and shape of a hoof diversion tunnel, should be noted to select soft
The preferable extruded polystyrene thin web of property, with the change of commensurate structure；The extruded polystyrene thin web structure that laying is completed.
2nd, C30 concrete of the thickness in 3-5cm or so is just sprayed in the structure for having laid extruded polystyrene thin web, i.e.,
Outer concrete layer 23, after the completion of first injection, laying reinforcing bar stratum reticulare 22, bar-mat reinforcement is close to just spray plane, and fixation, it is ensured that
Bar-mat reinforcement can not be rocked during pneumatically placed concrete, and the thickness of second gunite concrete (i.e. inner concrete layer 21) is 10-12cm, finally
Form the insulation frost heaving resistant structure suitable for cold district diversion tunnel.
3rd, the tunnel for causing in order to avoid frost heave stress along its length extrusion stress to complex heat-preservation frost heaving resistant structure
Destruction, reserves expansion joint between the complex heat-preservation frost heaving resistant layer 2 of every 30-50m, stitches a width of 3-5cm, and the filling in seam has soft
The compressible material of property, for example：The materials such as polyurethane sealant, flexible resin, so can offset because tunnel is along length
The extrusion stress in direction is to being incubated frost heaving resistant structural damage.
Wherein, insulation material and the frost heaving resistant structural material being adapted with engineering characteristic is selected.The concrete mark of frost heaving resistant
Number it is C30, the seepage-resistant grade of gunite concrete is not less than W8；Bar-mat reinforcement adopts the reinforcing bars of φ 8, and size of mesh opening is 10 × 10cm, or
20 × 20cm of person, increases spacing or reduces spacing also dependent on engineering practice；Extruded polystyrene thin web will meet
National standard is required.
This tunnel insulation frost heaving resistant structure that the application is provided has the features such as frost heaving resistant, antiseepage, insulation, from extrusion molding
Polystyrene film plate (XPS)+concrete spray coating linked network structure as cold district insulation frost heaving resistant composite lining structure,
And set expansion joint between the composite lining structure of certain length.This new structure passes through on-site verification, with very good
Engineering significance.
Described above illustrates and describes some preferred embodiments of the present utility model, but as previously mentioned, it should be understood that this
Utility model is not limited to form disclosed herein, is not to be taken as the exclusion to other embodiment, and can be used for various
Other combinations, modification and environment, and can be in utility model contemplated scope described herein, by above-mentioned teaching or association area
Technology or knowledge be modified.And change that those skilled in the art are carried out and change are without departing from spirit of the present utility model and model
Enclose, then all should be in the protection domain of the utility model claims.
Claims (8)
1. the insulation frost heaving resistant structure of a kind of diversion tunnel, it is characterised in that formed including the injection laid successively from outside to inside
Inner concrete layer (21), reinforcing bar stratum reticulare (22), injection formed outer concrete layer (23), polystyrene film flaggy (24),
Outer concrete layer (23), polystyrene film flaggy (24) that the inner concrete layer (21), reinforcing bar stratum reticulare (22), injection are formed
Constitute insulation frost heaving resistant composite bed (2) of insulation frost heaving resistant structure.
2. the insulation frost heaving resistant structure of diversion tunnel according to claim 1, it is characterised in that the insulation frost heaving resistant is answered
Expansion joint is reserved between layer (2) is closed per 30-50m, a width of 3-5cm is stitched, flexible compressibility material is filled in expansion joint
Material.
3. the insulation frost heaving resistant structure of diversion tunnel according to claim 2, it is characterised in that described flexible compressible
Property material be polyurethane sealant or flexible resin.
4. the insulation frost heaving resistant structure of diversion tunnel according to claim 1, it is characterised in that the inner concrete layer
(21) thickness is 10-12cm.
5. the insulation frost heaving resistant structure of diversion tunnel according to claim 1, it is characterised in that the reinforcing bar stratum reticulare (22)
Reinforcing bar adopt the reinforcing bars of φ 8, size of mesh opening is 10 × 10cm, or 20 × 20cm.
6. the insulation frost heaving resistant structure of diversion tunnel according to claim 1, it is characterised in that the outer concrete layer
(23) thickness is 3-5cm.
7. the insulation frost heaving resistant structure of diversion tunnel according to claim 1, it is characterised in that the polystyrene film
The thickness of flaggy (24) is 3-5cm.
8. the insulation frost heaving resistant structure of diversion tunnel according to claim 1, it is characterised in that the inner concrete layer
(21), the concrete grade of outer concrete layer (23) is C30, and the seepage-resistant grade of gunite concrete is not less than W8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621251532.3U CN206174966U (en) | 2016-11-15 | 2016-11-15 | Diversion tunnel's freeze proof bloated structure of heat preservation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621251532.3U CN206174966U (en) | 2016-11-15 | 2016-11-15 | Diversion tunnel's freeze proof bloated structure of heat preservation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206174966U true CN206174966U (en) | 2017-05-17 |
Family
ID=58686601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621251532.3U Expired - Fee Related CN206174966U (en) | 2016-11-15 | 2016-11-15 | Diversion tunnel's freeze proof bloated structure of heat preservation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206174966U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988769A (en) * | 2017-06-02 | 2017-07-28 | 安徽理工大学 | A kind of deep High-geotemperature tunnel heat-insulation liner structure and its construction method |
| CN108331583A (en) * | 2018-03-11 | 2018-07-27 | 吕琳 | A kind of ingate section of jurisdiction freezing board |
-
2016
- 2016-11-15 CN CN201621251532.3U patent/CN206174966U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988769A (en) * | 2017-06-02 | 2017-07-28 | 安徽理工大学 | A kind of deep High-geotemperature tunnel heat-insulation liner structure and its construction method |
| CN106988769B (en) * | 2017-06-02 | 2023-06-23 | 安徽理工大学 | Deep high-ground-temperature roadway heat insulation lining structure and construction method thereof |
| CN108331583A (en) * | 2018-03-11 | 2018-07-27 | 吕琳 | A kind of ingate section of jurisdiction freezing board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20171115 |