CN202108030U - Cave dwelling type arch dam abutment groove structure - Google Patents
Cave dwelling type arch dam abutment groove structure Download PDFInfo
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- CN202108030U CN202108030U CN2011201414345U CN201120141434U CN202108030U CN 202108030 U CN202108030 U CN 202108030U CN 2011201414345 U CN2011201414345 U CN 2011201414345U CN 201120141434 U CN201120141434 U CN 201120141434U CN 202108030 U CN202108030 U CN 202108030U
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- dam
- abutment groove
- dam abutment
- groove structure
- traffic tunnel
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Abstract
The utility model relates to a cave dwelling type arch dam abutment groove structure, which aims at reducing slope disturbance above a dam crest, reducing the work amount for excavating a dam abutment and processing a slope, and shortening a construction period. The cave dwelling type arch dam abutment groove structure adopts the technical scheme that a side slope is provided and has cliffy landform and fresh and complete rock masses, and is characterized in that a traffic tunnel is arranged to the altitude of the dam crest, lock mouth linings are arranged at the top and two sides of the structure, arch supports at two ends of the traffic tunnel are located at the side slopes at the upstream and downstream of a dam abutment groove, the dam abutment groove is formed by excavating the traffic tunnel downwards, and a concrete arch dam body is arranged in the dam abutment groove. The cave dwelling type arch dam abutment groove structure is applicable to an arch dam, above the altitude of the dam crest of which the side slope is stiff and the rock mass is more complete.
Description
Technical field
The utility model relates to a kind of cave type Arch Dam Abutment groove structure.Mainly be applicable to the arch dam that the above side slope of crest elevation is precipitous, rock mass is more complete.
Background technology
Arch Dam Abutment is the main supporting mass of arch dam load, and its stability requirement is very high, generally need be excavated to fresh complete basement rock on the engineering.Receive the topographic and geologic conditionality, difficult problems such as the excavation supporting engineering quantity is big, the high steep situation of side slope, and generation construction channel arrangement is difficult thus, work plane is narrow and small, the engineering time is long, uncertain factor is many appear in dam abutment excavation often.Therefore, the Arch Dam Abutment excavation is often classified as the key technology problem.
Summary of the invention
The technical problem that the utility model will solve is: the problem to above-mentioned existence, a kind of cave type Arch Dam Abutment groove structure is provided, and be intended to reduce the above side slope disturbance of dam crest, reduce dam abutment open excavation amount and Slope Treatment engineering quantity, shorten the construction period.
The technical scheme that the utility model adopted is: cave type Arch Dam Abutment groove structure; Have that the above landform of crest elevation is precipitous, the fresh complete side slope of rock mass; It is characterized in that: arrange traffic tunnel a to crest elevation and at its top and both sides form the fore shaft lining cutting; Traffic tunnel two ends abut is seated on the side slope of dam abutment groove upstream and downstream, and the dam abutment groove is excavated downwards by the traffic tunnel and forms, and is the arched concrete dam dam body in the dam abutment groove.
The beneficial effect of the utility model is: the utility model reasonably combines Dam Site topographic and geologic characteristic with Arch Dam Abutment groove architectural characteristic; Effectively reduced the excavation supporting workload of dam abutment groove; Also reduced disturbance, shortened the duration simultaneously, saved construction investment the above side slope of arch dam dam crest.
Description of drawings
Fig. 1 is the Facad structure figure of the utility model.
Fig. 2 is the construction profile of the utility model.
The specific embodiment
Like Fig. 1, shown in Figure 2; Present embodiment is intended construction dam abutment groove structure on the side slope 1 precipitous in the above landform of crest elevation, that rock mass is more complete; At first arrange that from the appropriate location of traffic convenience traffic tunnel (being cave dwelling) 2 is to crest elevation; This tunnel can be used as the construction passage that dam abutment groove 4 excavates in the engineering construction phase, can be used as the dam access tunnel in the engineering operation phase.
Carry out the fore shaft lining cutting after traffic tunnel 2 excavations are accomplished, form fore shaft lining cutting 3 in the top and the both sides of tunnel, the above side slope in tunnel top will be carried out supporting within the specific limits.Traffic tunnel 2 two ends abuts are seated on the side slope 1 of dam abutment groove upstream and downstream.
In traffic tunnel 2, begin groove downwards from crest elevation (0m) and dig, ask for an interview Fig. 2, this routine first step is dug to-15m, and second step dug to-30m, digs at last to-45m, promptly arrives at the bottom of the dam, should in time carry out supporting according to the geological conditions of dam abutment groove 4 exposures in the grooving process.
At last in dam abutment groove 4 from bottom to top fluid concrete form arch dam dam body 5.
Claims (1)
1. cave type Arch Dam Abutment groove structure; Have that the above landform of crest elevation is precipitous, the fresh complete side slope of rock mass (1); It is characterized in that: arrange a traffic tunnel (2) to crest elevation and at its top and both sides form fore shaft lining cutting (3); Traffic tunnel two ends abut is seated on the side slope (1) of dam abutment groove upstream and downstream, and dam abutment groove (4) is excavated downwards by the traffic tunnel and forms, and is arched concrete dam dam body (5) in the dam abutment groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201414345U CN202108030U (en) | 2011-05-06 | 2011-05-06 | Cave dwelling type arch dam abutment groove structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201414345U CN202108030U (en) | 2011-05-06 | 2011-05-06 | Cave dwelling type arch dam abutment groove structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202108030U true CN202108030U (en) | 2012-01-11 |
Family
ID=45433468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201414345U Expired - Lifetime CN202108030U (en) | 2011-05-06 | 2011-05-06 | Cave dwelling type arch dam abutment groove structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202108030U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362133A (en) * | 2013-07-30 | 2013-10-23 | 中水东北勘测设计研究有限责任公司 | Arch dam-arch shoulder grooving method in mountain narrow canyon |
| CN103410151A (en) * | 2013-08-28 | 2013-11-27 | 中国水电顾问集团成都勘测设计研究院 | Method for excavating spandrel grooves of arch dam |
| CN115405324A (en) * | 2022-08-10 | 2022-11-29 | 武汉理工大学 | Parallel excavation structure and method for cave-type dam abutment groove |
-
2011
- 2011-05-06 CN CN2011201414345U patent/CN202108030U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362133A (en) * | 2013-07-30 | 2013-10-23 | 中水东北勘测设计研究有限责任公司 | Arch dam-arch shoulder grooving method in mountain narrow canyon |
| CN103362133B (en) * | 2013-07-30 | 2015-02-11 | 中水东北勘测设计研究有限责任公司 | Arch dam-arch shoulder grooving method in mountain narrow canyon |
| CN103410151A (en) * | 2013-08-28 | 2013-11-27 | 中国水电顾问集团成都勘测设计研究院 | Method for excavating spandrel grooves of arch dam |
| CN115405324A (en) * | 2022-08-10 | 2022-11-29 | 武汉理工大学 | Parallel excavation structure and method for cave-type dam abutment groove |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |