CN207297090U - A kind of sewer structure for expansive stratum Tunnel Base draining - Google Patents
A kind of sewer structure for expansive stratum Tunnel Base draining Download PDFInfo
- Publication number
- CN207297090U CN207297090U CN201721087823.8U CN201721087823U CN207297090U CN 207297090 U CN207297090 U CN 207297090U CN 201721087823 U CN201721087823 U CN 201721087823U CN 207297090 U CN207297090 U CN 207297090U
- Authority
- CN
- China
- Prior art keywords
- tunnel base
- cover board
- ditch body
- reinforced concrete
- sewer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
It the utility model is related to a kind of sewer structure for expansive stratum Tunnel Base draining, the sewer structure is located at below inverted arch structure, along tunnel longitudinally elongated setting, its ditch body top surface is provided with prefabricated reinforced concrete cover board, permeable layer is provided with ditch body and above prefabricated reinforced concrete cover board, water seepage hole is both provided with ditch body and prefabricated reinforced concrete cover board.The utility model can effectively discharge Tunnel Base underground water, can avoid a series of diseases brought by the dilatancy that expansive stratum immersion produces to Tunnel Base to greatest extent, it is ensured that Tunnel Base structure safety and train operation safety.
Description
Technical field
The utility model belongs to traffic engineering guarded drainage technical field, and in particular to one kind is used for expansive stratum tunnel base
The sewer structure of bottom draining.
Background technology
The waterproof and water drainage system of existing tunnel routine is mainly by splash guard+non-woven fabrics, circumferential blind pipe, longitudinal blind pipe, drain-side
Ditch, Central drain composition.Tunnel arch wall lining cutting behind ponding introduces tunnel lateral sulcus by blind pipe, and lateral sulcus leads at a certain distance
Cross pre-buried water pipe to connect lateral sulcus with Central drain, easy to which lateral sulcus water is introduced Central drain, finally by draining lateral sulcus and center
Ditch discharges arch wall lining cutting behind ponding outside hole, but ponding often can not be successfully discharge under inverted arch.In expansive stratum, if
The long-term ponding of Tunnel Base, the expansion load that expansive stratum water-swellable produces will act directly on Tunnel Base, expand lotus
Carrying senior general causes Tunnel Base deformation excessive, and the diseases such as inverted arch structure protuberance, cracking, dilatancy occur under serious situation
The differential expansion on stratum will cause Tunnel Base differential settlement etc., seriously affect train operation safety, later period maintenance difficulty
Greatly, risk is high.Therefore, the discharge structure that can smoothly discharge Tunnel Base ponding of development of new is that expansive stratum tunnel is built
A urgent problem in if.
The content of the invention
The purpose of this utility model is to provide a kind of sewer structure for expansive stratum Tunnel Base draining, is used for
Expansive stratum Tunnel Base draining, facilitates ensuring that expansive stratum inverted arch structure behind ponding smoothly discharges tunnel, effectively keeps away
Exempt from because expansive stratum long period of soaking in water caused by the security risk brought to liner structure of dilatancy.
Technical solution is used by the utility model：
A kind of sewer structure for expansive stratum Tunnel Base draining, it is characterised in that：
The sewer structure is located at below inverted arch structure, and along tunnel longitudinally elongated setting, its ditch body top surface is provided with prefabricated
Reinforced concrete cover plate, ditch body is interior and prefabricated reinforced concrete cover board top is provided with permeable layer, ditch body and precast reinforced coagulation
Water seepage hole is both provided with earth mulch plate.
The ditch body cross section of sewer structure is in up big and down small trapezoidal.
Permeable layer is made of backfill graded broken stone.
The utility model has the following advantages：
The utility model is provided with the sewer structure for substrate draining, main to discharge the following country rock product of inverted arch liner structure
Water, using the discharge structure, can reduce influence of the underground water to Tunnel Base country rock, can effectively solve expansive stratum tunnel base
Bottom seeping phenomenon, it is ensured that sole can smoothly discharge tunnel, can avoid to greatest extent because ponding cannot smoothly discharge and
A series of diseases for causing expansive stratum dilatancy to be brought to liner structure.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the utility model；
Fig. 2 is the cross section detail drawing of the utility model sewer structure；
Fig. 3 is I-I profile in Fig. 2；
Fig. 4 is 2 spilled water hole artwork of the utility model prefabricated reinforced concrete cover board.
In figure, 1-ditch body, 2-prefabricated reinforced concrete cover board, 3- water seepage holes, 4-permeable layer, 5-arch bottom is just on the outside of branch
Graded broken stone height, 6-ditch height degree, 7-sewer cutting depth, 8-excavation slope gradient, 9-inverted arch are filled to cover board top
The following country rock ponding seepage direction of structure.
Embodiment
The utility model is described in detail with reference to embodiment.
It the utility model is related to a kind of sewer structure for expansive stratum Tunnel Base draining, the sewer structure bit
Below inverted arch structure, along tunnel longitudinally elongated setting, cutting depth and the excavation slope gradient can pass through substrate expansive stratum
Engineering characteristic determines that longitudinal slope is set according to tunnel longitudinal slope.The ditch body 1 of sewer structure is form concrete structure, using C20 coagulations
Soil scene pours to be formed, and cross section is in up big and down small trapezoidal.1 top surface of ditch body is provided with prefabricated reinforced concrete cover board 2, ditch body
In the 1 and top of prefabricated reinforced concrete cover board 2 is provided with permeable layer 4, and permeable layer 4 is made of backfill graded broken stone, should be backfilled close
It is real, it need to ensure its infiltration ability and bearing capacity.Water seepage hole is staggeredly equipped with ditch body 1 and prefabricated reinforced concrete cover board 2
3.Ponding can pass through water seepage hole 3 and permeable layer 4 enters outside sewer discharge hole, it is ensured that country rock no longer soaks in water.
The utility model is provided with the sewer structure for substrate draining, can smoothly discharge country rock under inverted arch structure and accumulate
Water, can effectively solve expansive stratum Tunnel Base seeping phenomenon, prevent to cause because Tunnel Base ponding cannot smoothly be discharged
A series of diseases that expansive stratum dilatancy is brought to tunnel lining structure.
The content of the utility model is not limited to cited by embodiment, and those of ordinary skill in the art are new by reading this practicality
Type specification and any equivalent conversion taken technical solutions of the utility model, are the claim institute of the utility model
Cover.
Claims (3)
- A kind of 1. sewer structure for expansive stratum Tunnel Base draining, it is characterised in that：The sewer structure is located at below inverted arch structure, along tunnel longitudinally elongated setting, its ditch body（1）Top surface is provided with pre-manufactured steel Reinforced concrete cover board（2）, ditch body（1）Interior and prefabricated reinforced concrete cover board（2）Top is provided with permeable layer（4）, ditch body（1）And Prefabricated reinforced concrete cover board（2）On be both provided with water seepage hole（3）.
- A kind of 2. sewer structure for expansive stratum Tunnel Base draining according to claim 1, it is characterised in that：The ditch body of sewer structure（1）Cross section is in up big and down small trapezoidal.
- A kind of 3. sewer structure for expansive stratum Tunnel Base draining according to claim 1, it is characterised in that：Permeable layer（4）It is made of backfill graded broken stone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721087823.8U CN207297090U (en) | 2017-08-29 | 2017-08-29 | A kind of sewer structure for expansive stratum Tunnel Base draining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721087823.8U CN207297090U (en) | 2017-08-29 | 2017-08-29 | A kind of sewer structure for expansive stratum Tunnel Base draining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207297090U true CN207297090U (en) | 2018-05-01 |
Family
ID=62438996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721087823.8U Active CN207297090U (en) | 2017-08-29 | 2017-08-29 | A kind of sewer structure for expansive stratum Tunnel Base draining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207297090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083681A (en) * | 2018-09-20 | 2018-12-25 | 中铁西南科学研究院有限公司 | A kind of high water head rich water tunnel tunnel bottom construction and water discharge method |
-
2017
- 2017-08-29 CN CN201721087823.8U patent/CN207297090U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083681A (en) * | 2018-09-20 | 2018-12-25 | 中铁西南科学研究院有限公司 | A kind of high water head rich water tunnel tunnel bottom construction and water discharge method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021109537A1 (en) | Ultra-long tunnel sewage disposing and separation drainage structure suitable for cold regions | |
| CN105927272A (en) | Floor anchoring constraint tunnel lining structure | |
| CN103953008B (en) | A kind of modified mixed dam being applicable to Tailings Dam | |
| CN206386150U (en) | A kind of Underground Subway Station draining and examination and repair system | |
| CN104131575A (en) | Plugging and drainage method for dam foundation on karst highly developed stratum | |
| CN103510528A (en) | Blind trench water discharging structure used for underground structure up-floating prevention | |
| CN105256876A (en) | Siphon type draining system of superhigh excavation section of road | |
| CN107401413A (en) | Tunnel structure for expansive stratum | |
| CN113463670A (en) | Water pumping and draining method and water pumping and draining structure for deep foundation pit bottom plate construction | |
| CN109371918A (en) | With the dam structure and its construction method faced forever in conjunction with multi-functional drainage box culvert | |
| CN106759223A (en) | Controllable rigid pile+displacement hull+reinforcement cushion combined composite foundation | |
| CN108757027B (en) | Multifunctional drainage system in tunnel | |
| CN101914882B (en) | Low embankment structure in phreatic high slity soil region and construction method thereof | |
| CN111119154A (en) | River valley type debris flow ditch waste slag land-making structure and construction method | |
| CN207568626U (en) | A kind of tunnel structure for expansive stratum | |
| CN204551510U (en) | A kind of filled-up ground catchments pressure reduction well drop and drainage structure | |
| CN102425175B (en) | Reinforcement protective structure of large spoil disposal area in mountainous area | |
| CN206608208U (en) | A kind of new lower wall main haulage roadway discharge structure device | |
| CN207297090U (en) | A kind of sewer structure for expansive stratum Tunnel Base draining | |
| CN211228269U (en) | High-grade highway central separation strip structure | |
| CN209482261U (en) | With the dam structure faced forever in conjunction with multi-functional drainage box culvert | |
| CN214363925U (en) | Cut water seepage ditch system | |
| CN206298869U (en) | Free drainage concrete retaining wall structure | |
| CN113464174B (en) | Construction method of tunnel row waterproof comprehensive treatment system | |
| CN202578783U (en) | Bored decompression side-ditch centralized drainage structure for traffic tunnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |