CN202467865U - Combined type hydraulic high-pressure tunnel end cap - Google Patents
Combined type hydraulic high-pressure tunnel end cap Download PDFInfo
- Publication number
- CN202467865U CN202467865U CN2012200851414U CN201220085141U CN202467865U CN 202467865 U CN202467865 U CN 202467865U CN 2012200851414 U CN2012200851414 U CN 2012200851414U CN 201220085141 U CN201220085141 U CN 201220085141U CN 202467865 U CN202467865 U CN 202467865U
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- CN
- China
- Prior art keywords
- plug
- end cap
- steel concrete
- combined type
- reinforced concrete
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a combined type hydraulic high-pressure tunnel end cap. A reinforced concrete front end cap (3) and a reinforced concrete rear end cap (4) are positioned in a construction branch tunnel (6), a carving groove is arranged on the inner wall of the construction branch tunnel (6) between the reinforced concrete front end cap (3) and the reinforced concrete rear end cap (4), and an expansive clay end cap (2) for being filled in the carving groove is arranged between the reinforced concrete front end cap (3) and the reinforced concrete rear end cap (4). The carving groove is a triangular carving groove (1). The combined type hydraulic high-pressure tunnel end cap is the leakage-prevention plugging technical scheme with rigid materials and flexible materials combined and is low in permeability, good in sealing quality, simple in structure and convenient to operate.
Description
Technical field
The utility model relates to a kind of tunnel plug, particularly relates to a kind of combined type water conservancy project heavy-duty pressure tunnel plug that is used for fields such as Hydraulic and Hydro-Power Engineering, water supply project.
Background technology
Under the prior art condition, after water conservancy project high pressure diversion tunnel construction finishes, near near the certain limit diversion tunnel or the construction between the high pressure diversion tunnel prop up the hole and all adopt Reinforced Concrete Materials to carry out shutoff.This technological weak point is: the wall rock loosening ring that certain limit appears in the hole country rock is propped up in (1) because of construction blasting causes constructing; Cause the country rock permeability in the relaxation zone scope to increase; (2) construction top, a hole blocking concrete is because vibrate difficulty and drying shrinkage phenomenon; Cause the top seal quality of steel concrete plug to be difficult for guaranteeing, infiltration in a large number occurs.
The utility model content
The technical problem that the utility model will solve provides the combined type water conservancy project heavy-duty pressure tunnel plug that a kind of permeability is low, airtight quality is good.
In order to solve the problems of the technologies described above; The combined type water conservancy project heavy-duty pressure tunnel plug that the utility model provides; Plug 4 behind plug and the steel concrete before in a construction hole, being provided with steel concrete; The construction between the plug is propped up on the inwall in hole and is provided with cutting behind plug and the steel concrete before described steel concrete, before described steel concrete, is provided with the expansive clay plug that is filled in the described cutting behind plug and the steel concrete between the plug.
Described cutting is the triangle cutting.
Adopt the combined type water conservancy project heavy-duty pressure tunnel plug of technique scheme, utilize the plug two ends to bear the water pressure that the high pressure diversion tunnel produces plug for the steel concrete plug; Reach the effect that antiseepage is handled, the characteristic of particularly having utilized expansive soil water-swellable, permeability significantly to reduce through the expansive clay plug between the plug behind plug before the steel concrete and the steel concrete; Triangle cutting simultaneously makes scored position be in the compressive stress collected state; Make that the crack of this position country rock is closed under the effect of compressive stress; Permeability reduces, and the rock mass permeability that the wall rock loosening of avoiding rock mass to cause because of the excavation explosion causes increases, and then the water leakage that causes increases.This blocking technology is reasonable in design, and is simple in structure, easy to operate.
In sum; The utility model utilizes the cutting of country rock triangle to reduce the permeability of country rock; Reach the antiseepage Expected Results through implementing flexible expansion property clay plug; The stressed of plug then born by plug behind plug and the steel concrete before the steel concrete at two ends; This technology is further perfect high pressure diversion tunnel antiseepage blocking technology is the antiseepage blocking technology scheme that a kind of rigidity and flexible material combine, and is that a kind of permeability is low, airtight quality good and simple in structure, easy to operate combined type water conservancy project heavy-duty pressure tunnel plug.
Description of drawings
Fig. 1 is construction plug vertical section, a hole sketch map.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described further.
Referring to Fig. 1; High pressure diversion tunnel 5 is provided with a construction hole 6; Plug 4 behind plug 3 and the steel concrete before in a construction hole 6, being provided with steel concrete; The construction between the plug 4 is propped up on the inwall in hole 6 and is provided with triangle cutting 1 behind plug 3 and the steel concrete before steel concrete; Before steel concrete, be provided with the expansive clay plug 2 that is filled in the triangle cutting 1 behind plug 3 and the steel concrete between the plug 4, expansive soil fills strict control water content size in the process in construction, and hits the crucial point reason.
Referring to Fig. 1, adopt the combined type water conservancy project heavy-duty pressure tunnel plug of technique scheme, utilize the plug two ends to bear the water pressure that the high pressure diversion tunnel produces plug for the steel concrete plug; Reach the effect that antiseepage is handled, the characteristic of particularly having utilized expansive soil water-swellable, permeability significantly to reduce through the expansive clay plug 2 between the plug 4 behind plug before the steel concrete 3 and the steel concrete; Triangle cutting 1 simultaneously makes scored position be in the compressive stress collected state; Make that the crack of this position country rock is closed under the effect of compressive stress; Permeability reduces, and the rock mass permeability that the wall rock loosening of avoiding rock mass to cause because of the excavation explosion causes increases, and then the water leakage that causes increases.This blocking technology is reasonable in design, and is simple in structure, easy to operate.
Claims (2)
1. combined type water conservancy project heavy-duty pressure tunnel plug; It is characterized in that: in construction hole (6), be provided with before the steel concrete plug (4) behind the plug (3) and steel concrete; Described construction behind plug before described steel concrete (3) and the described steel concrete between the plug (4) is propped up on the inwall of hole (6) and is provided with cutting, is provided with the expansive clay plug (2) that is filled in the described cutting behind plug before described steel concrete (3) and the described steel concrete between the plug (4).
2. according to right 1 described combined type water conservancy project heavy-duty pressure tunnel plug, it is characterized in that: described cutting is triangle cutting (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200851414U CN202467865U (en) | 2012-03-08 | 2012-03-08 | Combined type hydraulic high-pressure tunnel end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200851414U CN202467865U (en) | 2012-03-08 | 2012-03-08 | Combined type hydraulic high-pressure tunnel end cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202467865U true CN202467865U (en) | 2012-10-03 |
Family
ID=46916030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200851414U Withdrawn - After Issue CN202467865U (en) | 2012-03-08 | 2012-03-08 | Combined type hydraulic high-pressure tunnel end cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202467865U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587937A (en) * | 2012-03-08 | 2012-07-18 | 长沙理工大学 | Composite hydraulic high-duty pressure tunnel plug |
| CN103276705A (en) * | 2013-05-07 | 2013-09-04 | 葛洲坝集团第六工程有限公司 | Method for blocking diversion tunnel by cast-in-situ reinforced concrete without gate cutoff and blocking reinforcement cage |
| CN104790356A (en) * | 2015-05-08 | 2015-07-22 | 中国电建集团成都勘测设计研究院有限公司 | Structure for monitoring pass-through condition during diversion tunnel blocking construction |
-
2012
- 2012-03-08 CN CN2012200851414U patent/CN202467865U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587937A (en) * | 2012-03-08 | 2012-07-18 | 长沙理工大学 | Composite hydraulic high-duty pressure tunnel plug |
| CN102587937B (en) * | 2012-03-08 | 2014-03-12 | 长沙理工大学 | Composite hydraulic high-duty pressure tunnel plug |
| CN103276705A (en) * | 2013-05-07 | 2013-09-04 | 葛洲坝集团第六工程有限公司 | Method for blocking diversion tunnel by cast-in-situ reinforced concrete without gate cutoff and blocking reinforcement cage |
| CN103276705B (en) * | 2013-05-07 | 2015-04-29 | 葛洲坝集团第六工程有限公司 | Method for blocking diversion tunnel by cast-in-place reinforced concrete without gate flow interruption and blocking reinforcement cage |
| CN104790356A (en) * | 2015-05-08 | 2015-07-22 | 中国电建集团成都勘测设计研究院有限公司 | Structure for monitoring pass-through condition during diversion tunnel blocking construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121003 Effective date of abandoning: 20140312 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20121003 Effective date of abandoning: 20140312 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |