CN208073500U - Both sides setting has both the liner structure of the L-shaped pedestal of draining, carrying and supporting and retaining system function - Google Patents
Both sides setting has both the liner structure of the L-shaped pedestal of draining, carrying and supporting and retaining system function Download PDFInfo
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- CN208073500U CN208073500U CN201721856899.2U CN201721856899U CN208073500U CN 208073500 U CN208073500 U CN 208073500U CN 201721856899 U CN201721856899 U CN 201721856899U CN 208073500 U CN208073500 U CN 208073500U
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- tunnel
- arch wall
- shaped pedestal
- arch
- construct
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000009412 basement excavation Methods 0.000 claims abstract description 13
- 239000011435 rock Substances 0.000 claims abstract description 10
- 239000011378 shotcrete Substances 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 27
- 230000000694 effects Effects 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 8
- 239000004567 concrete Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000003673 groundwater Substances 0.000 description 3
- 239000004035 construction material Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000001932 seasonal effect Effects 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
Abstract
Both sides setting has both the liner structure of the L-shaped pedestal of draining, carrying and supporting and retaining system function, by being transformed to conventional tunnel lining cutting tunnel bottom structure form, change tunnel bottom structure stress form, eliminate effect of the underground water to tunnel-liner bottom structure, karst or the regional tunnel inverted arch floating deformation of underground water development or tunnel bottom structure cracking destruction are effectively solved the problems, such as, to ensure stabilization and the safety of constructing tunnel and operation.Including arch wall preliminary bracing structure, arch wall secondary liner structure and arch wall range waterproof layer.Deep trouth is excavated in tunnel bottom excavation face both sides, L-shaped pedestal construct is set in the deep trouth of both sides, arch wall secondary liner structure both sides abutment wall bottom and the bottom plate of homonymy L-shaped pedestal construct consolidate, and longitudinal slotted cavities are formed between L-shaped pedestal construct riser, carrying basis, the retaining structure of tunnel bottom country rock and tunnel longitudinal drainage channel of the L-shaped pedestal construct as arch wall secondary liner structure.
Description
Technical field
The utility model is related to tunnel lining structure, more particularly to one kind apply to underground water development location or underground water by
The irregular location of seasonal effect or karst area, and the tunnel lining structure that tunnel bottom is more complete weak weathering hard rock constructs.
Background technology
With railway construction in China high speed development, high-speed railway build it is more and more, especially in Southwest Mountainous Areas, on the one hand,
Since lime rock stratum is widely distributed；On the other hand, to high-speed railway, circuit show line big, topographic and geologic condition by sweep
The restriction of many factors such as complexity causes Karst Tunnel scale (quantity and length) to increase sharply.Since karst and karst water are sent out
Educating has the characteristics that complexity, diversity and irregularities, and Karst Tunnel of growing up builds risk especially operations risks increasingly
It is high.
In recent years, suitable ten thousand, had occurred during Shanghai elder brother, the expensive Railway Tunnels operation such as wide several ballastless track beds deformations,
The water damages event such as inverted arch and filling protuberance, causes Railway Design, construction, construction and the great attention for runing each side.
Traditional double track tunnel lining cutting generally uses bent liner structure form of the wall with inverted arch, and Concrete Filled is used on inverted arch
As railway roadbed basis, inverted arch is separately poured with inverted arch filling in construction.Central drain+bilateral ditch, middle edema with the heart involved are set in tunnel
Ditch is placed in the obturator on inverted arch.Underground water discharge path is：Country rock → preliminary bracing → draining blind pipe → lateral sulcus → cross
To drainpipe → Central drain, i.e., the water on tunnel structure periphery is permeated by preliminary bracing enters tunnel via draining blind pipe ejectment
Central drain within structural body, it is final to be discharged outside hole.Traditional maximum defect of liner structure is：
(1) Central drain is set within tunnel structure, the periphery underground water of the main main ejectment arch wall range of ejectment, tunnel
Inverted arch ponding below can not effective ejectment.Especially in the close region of ground hydraulic connection, in continuous rainfall or rainstorm weather
Under, because of groundwater run off abruptly increase, traditional liner structure often can not be in time by the gutter in underground water ejectment to tunnel structure body
It is interior, it is drastically increased so as to cause level of ground water, under the effect of high hydraulic pressure, leads to inverted arch arch filling deformation protuberance.
(2) since tunnel bottom is arc-shaped, excavation control is more difficult, and excavate is led at polyline shaped even excavation at planar base surface more
Cause inverted arch structure actual bearer ability that cannot meet design requirement, once rain flood season, local draining is unsmooth to cause hydraulic pressure to rise,
Inverted arch structure crack is caused to destroy.
(3) it is big to clean out difficulty completely for inverted arch structural base void slag, since tunnel bottom underground water can not run in addition during
Ejectment easily causes tunnel bottom the disasters such as to rise soil under Train induced load repeated action.
Therefore, optimize tunnel lining structure, ensure that draining is unobstructed, eliminate tunnel bottom water pressure, becoming reduces underground water developmentally
Section, underground water by the irregular location of seasonal effect and karst area tunnel water damage risk, ensure operation security there is an urgent need to.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of settings of both sides to have both draining, carrying and supporting and retaining system function
The liner structure of L-shaped pedestal change tunnel bottom structure stress shape by being transformed to conventional tunnel lining cutting tunnel bottom structure form
Formula, eliminates effect of the underground water to tunnel-liner bottom structure, effectively solves on karst or the regional tunnel inverted arch of underground water development
The problem of floating deformation or tunnel bottom structure cracking destruction, to ensure stabilization and the safety of constructing tunnel and operation.
Technical solution is as follows used by the utility model solves its technical problem：
The both sides setting of the utility model has both the liner structure of the L-shaped pedestal of draining, carrying and supporting and retaining system function, including arch
Wall preliminary bracing structure, arch wall secondary liner structure and arch wall range waterproof layer, it is characterized in that：It is excavated in tunnel bottom excavation face both sides
Deep trouth, both sides deep trouth is interior to be arranged L-shaped pedestal construct, arch wall secondary liner structure both sides abutment wall bottom and homonymy L-shaped bottom
The bottom plate consolidation of seat construct, and longitudinal slotted cavities are formed between L-shaped pedestal construct riser, L-shaped pedestal construct is made
For carrying basis, the retaining structure of tunnel bottom country rock and the tunnel longitudinal drainage channel of arch wall secondary liner structure.
The utility model has the beneficial effects that：
1, using the liner structure form of the utility model, tunnel bottom is excavated into plane, and traditional lining types inverted arch is overcome
It is more convenient to excavate operation for the problems such as foundation excavation curvature is difficult to control.It is compared to traditional bent wall band inverted arch liner structure, is saved
Construction material effectively reduces engineering construction investment；
2, tunnel bottom is not provided with structure sheaf, is not required to apply Concrete Filled body thereon, has effectively evaded traditional bent wall band inverted arch
Lining cutting destroys obturator since underground water enters to squeeze between inverted arch and inverted arch blind by inverted arch construction joint, leads to track knot
Structure destroys.
3, it is disconnected to cross water as its carrying basis and tunnel longitudinal drainage channel for foundation setting L-shaped pedestal construct in two sides
The degree of freedom of face size setting is high, and discharge capacity is big, can effectively drainage arch wall range and tunnel bottom underground water and by underground water potential drop
To tunnel bottom absolute altitude hereinafter, may replace in traditional design in the drain cavern of underground water development location setting, average every kilometer of sandhog
It is more than 10,000,000 or more that journey, which can save project cost,.
4, cancel tunnel bottom structure layer, thoroughly eliminate effect of the underground water to tunnel-liner bottom structure.
Description of the drawings
This specification includes following two width attached drawing：
Fig. 1 is the disconnected of the liner structure for the L-shaped pedestal that the setting of the utility model both sides has both draining, carrying and supporting and retaining system function
Face figure；
Fig. 2 is the enlarged drawing of the parts A in Fig. 1.
Component, toponym and corresponding label are shown in figure：Arch wall preliminary bracing structure 10, arch wall shotcrete layer
10a, arch wall steelframe 10b, arch wall system anchor bolt 10c, screed-coat 11, arch wall range waterproof layer 20, arch wall secondary liner structure 40,
L-shaped pedestal construct 42, longitudinal slotted cavities B, tunnel bottom excavation face F.
Specific implementation mode
The utility model is described in detail with reference to the accompanying drawings and examples.
Referring to Fig.1, the both sides setting of the utility model has both the lining cutting knot of the L-shaped pedestal of draining, carrying and supporting and retaining system function
Structure includes arch wall preliminary bracing structure 10, arch wall secondary liner structure 40 and arch wall range waterproof layer 20,.In tunnel bottom excavation face F
Deep trouth is excavated in both sides, and L-shaped pedestal construct 42,40 both sides abutment wall bottom of the arch wall secondary liner structure is arranged in the deep trouth of both sides
It is consolidated with the bottom plate of homonymy L-shaped pedestal construct 42, and forms longitudinal slotted cavities B between 42 riser of L-shaped pedestal construct,
L-shaped pedestal construct 42 is longitudinal as the carrying basis of arch wall secondary liner structure 40, the retaining structure of tunnel bottom country rock and tunnel
Drainage channel.
Referring to Fig.1, longitudinal slotted cavities B is as tunnel longitudinal drainage channel, the degree of freedom of cross-section of river size setting
Height, discharge capacity is big, may replace in traditional design in the drain cavern of underground water development location setting, average every kilometer of Tunnel Engineering
It is more than 10,000,000 or more that project cost, which can be saved,.Both sides longitudinal direction slotted cavities B is respectively positioned on tunnel bottom absolute altitude hereinafter, can effectively drainage encircle
Level of ground water is simultaneously down to tunnel bottom absolute altitude hereinafter, thoroughly eliminating underground water to tunnel bottom ballast bed structure by wall range and tunnel bottom underground water
Effect.Tunnel bottom surface between both sides L-shaped pedestal construct 42 is not provided with structure sheaf, is only loosened to part on the excavation face F of tunnel bottom
Rock is removed, and levelling using the embedding benefit of concrete.Tunnel bottom is excavated into plane, and it is bent to overcome traditional lining types inverted arch foundation excavation
The problems such as rate is difficult to control is excavated operation and is more convenient, and can reduce tunnel excavation amount, saves construction material, effectively reduces engineering
Construction investment.Tunnel bottom is not provided with structure sheaf, is not required to apply Concrete Filled body thereon, has effectively evaded traditional bent wall band inverted arch and has served as a contrast
It builds and destroys obturator since underground water enters to squeeze between inverted arch and inverted arch blind by inverted arch construction joint, lead to track structure
It destroys.
Referring to Fig.1, screed-coat 11 is arranged in the bottom of the deep trouth, and L-shaped pedestal construct 42 is located on the screed-coat 11.
Referring to Figures 1 and 2, the arch wall range waterproof layer 20 be located at arch wall preliminary bracing structure 10 and arch wall secondary liner structure 40 it
Between.The arch wall preliminary bracing structure 10 includes the covering arch wall shotcrete layer 10a of arch wall country rock and quincunx along arch wall
The arch wall system anchor bolt 10c of arrangement.In the arch wall shotcrete layer 10a arch wall steelframe is laid along tunnel excavation direction interval
Bar-mat reinforcement is added in 10b, arch wall shotcrete layer 10a.
The utility model both sides setting described above that only explains through diagrams has both the L-shaped of draining, carrying and supporting and retaining system function
Some principles of the liner structure of pedestal are not intended to the utility model being confined to shown and described concrete structure and be applicable in
In range, therefore every corresponding modification for being possible to be utilized and equivalent, belong to the apllied patent of the utility model
Range.
Claims (4)
1. both sides setting has both the liner structure of the L-shaped pedestal of draining, carrying and supporting and retaining system function, including arch wall preliminary bracing structure
(10), arch wall secondary liner structure (40) and arch wall range waterproof layer (20), it is characterized in that：It is opened in the both sides tunnel bottom excavation face (F)
Dig deep trouth, setting L-shaped pedestal construct (42) in the deep trouth of both sides, arch wall secondary liner structure (40) the both sides abutment wall bottom with
The bottom plate of homonymy L-shaped pedestal construct (42) consolidates, and longitudinal slotted cavities are formed between L-shaped pedestal construct (42) riser
(B), L-shaped pedestal construct (42) as arch wall secondary liner structure (40) carrying basis, tunnel bottom country rock retaining structure and
Tunnel longitudinal drainage channel.
2. both sides setting as described in claim 1 has both the liner structure of the L-shaped pedestal of draining, carrying and supporting and retaining system function,
It is characterized in：The bottom setting screed-coat (11) of the deep trouth, L-shaped pedestal construct (42) are located on the screed-coat (11).
3. both sides setting as described in claim 1 has both the liner structure of the L-shaped pedestal of draining, carrying and supporting and retaining system function,
It is characterized in：The arch wall range waterproof layer (20) be located at arch wall preliminary bracing structure (10) and arch wall secondary liner structure (40) it
Between.
4. both sides setting as described in claim 1 has both the liner structure of the L-shaped pedestal of draining, carrying and supporting and retaining system function,
It is characterized in：The arch wall preliminary bracing structure (10) includes covering the arch wall shotcrete layer (10a) of arch wall country rock and along arch
The arch wall system anchor bolt (10c) of wall quincuncial arrangement；Along tunnel excavation direction interval in the arch wall shotcrete layer (10a)
Arch wall steelframe (10b) is laid, bar-mat reinforcement is added in arch wall shotcrete layer (10a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721856899.2U CN208073500U (en) | 2017-12-27 | 2017-12-27 | Both sides setting has both the liner structure of the L-shaped pedestal of draining, carrying and supporting and retaining system function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721856899.2U CN208073500U (en) | 2017-12-27 | 2017-12-27 | Both sides setting has both the liner structure of the L-shaped pedestal of draining, carrying and supporting and retaining system function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208073500U true CN208073500U (en) | 2018-11-09 |
Family
ID=64032244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721856899.2U Withdrawn - After Issue CN208073500U (en) | 2017-12-27 | 2017-12-27 | Both sides setting has both the liner structure of the L-shaped pedestal of draining, carrying and supporting and retaining system function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208073500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975379A (en) * | 2017-12-27 | 2018-05-01 | 中铁二院工程集团有限责任公司 | Both sides set the liner structure for the L-shaped base for having draining, carrying and supporting and retaining system function concurrently |
-
2017
- 2017-12-27 CN CN201721856899.2U patent/CN208073500U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975379A (en) * | 2017-12-27 | 2018-05-01 | 中铁二院工程集团有限责任公司 | Both sides set the liner structure for the L-shaped base for having draining, carrying and supporting and retaining system function concurrently |
| CN107975379B (en) * | 2017-12-27 | 2024-03-22 | 中铁二院工程集团有限责任公司 | Lining structure with L-shaped base with drainage, bearing and retaining functions at two sides |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181109 Effective date of abandoning: 20240322 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181109 Effective date of abandoning: 20240322 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |