CN215211400U - Gravity flow drainage structure after plugging of adverse slope construction branch tunnel of nearly underground factory building - Google Patents
Gravity flow drainage structure after plugging of adverse slope construction branch tunnel of nearly underground factory building Download PDFInfo
- Publication number
- CN215211400U CN215211400U CN202023286464.3U CN202023286464U CN215211400U CN 215211400 U CN215211400 U CN 215211400U CN 202023286464 U CN202023286464 U CN 202023286464U CN 215211400 U CN215211400 U CN 215211400U
- Authority
- CN
- China
- Prior art keywords
- construction branch
- drainage
- construction
- tunnel
- branch hole
- 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
Images
Abstract
The utility model discloses a gravity flow drainage structures behind adverse slope construction branch tunnel shutoff of nearly secret factory building, its characterized in that: the construction branch hole drainage gallery is characterized by comprising a construction branch hole plugging section and a construction branch hole drainage gallery located at the bottom of the construction branch hole plugging section, wherein the downstream side of the construction branch hole plugging section is led to the construction branch hole drainage gallery through a drainage hole, and the construction branch hole drainage gallery is led to a factory building drainage gallery to be drained. The utility model discloses safe and reliable, the structure is simple and easy, construction convenience, the interim drainage of construction branch tunnel construction period not only of being convenient for, and can improve the reliability of surrounding rock infiltration, shutoff body infiltration (concrete lining tunnel) or the outer drainage of steel lining (steel lining tunnel) of operation period construction branch tunnel, practice thrift the electric energy, be convenient for maintain.
Description
Technical Field
The utility model relates to a hydraulic and hydroelectric engineering field, concretely relates to gravity flow drainage structure behind adverse slope construction branch tunnel shutoff of nearly secret factory building.
Background
In water conservancy and hydropower engineering, in order to ensure construction progress, increase a construction working surface and facilitate excavation of an underground tunnel, some construction branch tunnels leading to the underground tunnel from a proper position on the ground are usually pre-excavated, and construction wastewater and surrounding rock seepage water are intensively led to a water delivery tunnel and a construction branch tunnel intersection along with excavation of the construction branch tunnels and the water delivery tunnel in a power station construction period; during the operation period of the power station, due to the existence of the adverse slope, the surrounding rock seepage of the construction branch tunnel, the seepage of the sealing body (concrete lining tunnel) or the seepage of the sealing body outside the steel lining (steel lining tunnel) are intensively connected to the downstream of the sealing area. For this reason, in many power stations, a water collecting tank is often arranged at the starting point of the plugging section of the reverse slope type construction branch tunnel, and a water pump is required to be arranged for the water collecting tank for pumping and draining. Its arrangement pattern needs to guarantee that the water pump can normally work, if take place to damage, can take place the ponding that enlarges, probably to taking place the factory building accident of flooding when serious, consequently need carry out periodic replacement and the working costs of water pump also higher to the water pump, consequently if can propose a gravity flow structure that does not set up the water pump, then the operation is comparatively simple and the operation is comparatively reliable.
SUMMERY OF THE UTILITY MODEL
To the not enough of existence among the prior art, the utility model aims to provide a gravity flow drainage structure behind adverse slope construction branch tunnel shutoff of nearly secret factory building. The utility model discloses safe and reliable, the structure is simple and easy, construction convenience, the interim drainage of construction branch tunnel construction period not only of being convenient for, and can improve the reliability of surrounding rock infiltration, shutoff body infiltration (concrete lining tunnel) or the outer drainage of steel lining (steel lining tunnel) of operation period construction branch tunnel, practice thrift the electric energy, be convenient for maintain.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
the utility model provides a gravity flow drainage structures behind adverse slope construction branch tunnel shutoff of nearly secret factory building, include construction branch tunnel shutoff section and be located the construction branch tunnel drainage corridor of construction branch tunnel shutoff section bottom, construction branch tunnel shutoff section downstream side is led through the wash port and is arranged to construction branch tunnel drainage corridor, construction branch tunnel drainage corridor connects to lead to factory building drainage corridor and discharges.
As an optimized technical scheme of the utility model, one section steel pipe of wash port drill way inside lining to set up the double-edged fine-toothed comb apron at the steel pipe mouth of pipe.
As an optimal technical scheme of the utility model, construction branch hole drainage corridor sets up certain slope.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model discloses an arrangement structure not only is convenient for construct the interim drainage of a tunnel construction period, and can improve the reliability of surrounding rock infiltration, shutoff body infiltration (concrete lining tunnel) or the outer drainage of steel lining (steel lining tunnel) of operation period construction branch tunnel, practices thrift the electric energy, is convenient for maintain.
Drawings
Fig. 1 is a plan view of the drainage gallery of the present invention.
Fig. 2 is a longitudinal sectional view of the drain gallery of the present invention.
Fig. 3 is a detailed view of the drain hole orifice during operation of the present invention.
Reference numerals: 1-constructing a branch tunnel plugging section; 2-constructing a branch tunnel drainage gallery; 3-a drain hole; 4-factory building drainage corridor; 5-a steel pipe; 6-grate cover plate.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The present invention will be further described with reference to the accompanying drawings 1-3 and examples, but the invention is not limited thereto.
As shown in fig. 1 to 3, temporary drainage during construction of the branch tunnel is facilitated, and the reliability of surrounding rock seepage, block body seepage (concrete-lined tunnel) or steel-lined external drainage (steel-lined tunnel) of the construction branch tunnel during operation is improved. The embodiment provides a free-flowing drainage structure after a reverse slope construction branch hole plugging of a near underground factory building, the structure is additionally provided with a construction branch hole drainage gallery 2 at the bottom of a construction branch hole plugging section 1, temporary-period sewage and permanent-period steel pipe drainage of the construction branch hole are led to the construction branch hole drainage gallery 2 through a drainage hole 3 at the downstream side of the construction branch hole plugging section 1, and the construction branch hole drainage gallery 2 is led to a factory building drainage gallery 4 to be drained.
Specifically, in order to facilitate the discharge of wastewater, in the embodiment, the two drain holes 3 of the a200 are connected with the construction branch hole plugging section 1 and the construction branch hole drainage gallery 2, a section of steel pipe 5 is lined in the orifices of the two drain holes 3 of the a200, in order to protect the orifice of the steel pipe 5, the orifice of the steel pipe 5 is provided with the grate cover plate 6, the steel pipe 5 needs to be heightened during construction, and the drain holes 3 of the a200 are prevented from being plugged by construction wastewater.
Furthermore, the construction branch hole drainage gallery 2 is provided with a 1% gradient and is led to the factory building drainage gallery 4 for discharge.
The utility model has the advantages that: the utility model discloses arrangement structure not only is convenient for construct the interim drainage of a tunnel construction period, and can improve the reliability of surrounding rock infiltration, shutoff body infiltration (concrete lining tunnel) or the outer drainage of steel lining (steel lining tunnel) of operation period construction branch tunnel, practices thrift the electric energy, is convenient for maintain.
According to the utility model discloses a description and drawing, technical personnel in the field make or use very easily the utility model discloses a gravity flow drainage structures behind adverse slope construction branch tunnel shutoff of nearly secret factory building to can produce the utility model discloses the positive effect recorded in.
Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (3)
1. The utility model provides a nearly secret factory building's adverse slope construction tunnel shutoff back gravity flow drainage structures which characterized in that: the construction branch hole drainage gallery is characterized by comprising a construction branch hole plugging section and a construction branch hole drainage gallery located at the bottom of the construction branch hole plugging section, wherein the downstream side of the construction branch hole plugging section is led to the construction branch hole drainage gallery through a drainage hole, and the construction branch hole drainage gallery is led to a factory building drainage gallery to be drained.
2. The gravity drainage structure after the plugging of the adverse slope construction branch tunnel of the near-underground factory building according to claim 1, is characterized in that: the orifice of the drain hole is lined with a section of steel pipe, and the pipe orifice of the steel pipe is provided with a grate cover plate.
3. The gravity drainage structure after the plugging of the adverse slope construction branch tunnel of the near-underground factory building according to claim 1, is characterized in that: the construction branch hole drainage gallery is provided with a slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023286464.3U CN215211400U (en) | 2020-12-30 | 2020-12-30 | Gravity flow drainage structure after plugging of adverse slope construction branch tunnel of nearly underground factory building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023286464.3U CN215211400U (en) | 2020-12-30 | 2020-12-30 | Gravity flow drainage structure after plugging of adverse slope construction branch tunnel of nearly underground factory building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215211400U true CN215211400U (en) | 2021-12-17 |
Family
ID=79436957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023286464.3U Active CN215211400U (en) | 2020-12-30 | 2020-12-30 | Gravity flow drainage structure after plugging of adverse slope construction branch tunnel of nearly underground factory building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215211400U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114790714A (en) * | 2022-04-24 | 2022-07-26 | 中国电建集团北京勘测设计研究院有限公司 | Later-stage diversion flood-fighting method for closed reservoir basin construction without permanent water release structure |
-
2020
- 2020-12-30 CN CN202023286464.3U patent/CN215211400U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114790714A (en) * | 2022-04-24 | 2022-07-26 | 中国电建集团北京勘测设计研究院有限公司 | Later-stage diversion flood-fighting method for closed reservoir basin construction without permanent water release structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201874614U (en) | Drainage structure for emptying overhaul of derivation tunnel | |
| CN104563145A (en) | Rock foundation small guide pipe partial water level lowering device and implementation method thereof | |
| CN215211400U (en) | Gravity flow drainage structure after plugging of adverse slope construction branch tunnel of nearly underground factory building | |
| CN210637109U (en) | Underground mine underground temporary drainage structure | |
| CN203603127U (en) | Check valve type drainage system for underground water in channel | |
| CN204551510U (en) | A kind of filled-up ground catchments pressure reduction well drop and drainage structure | |
| CN206957764U (en) | A kind of underground mine capital construction phase temporary drainage system | |
| CN106968227B (en) | Maintenance arrangement structure and maintenance method of permanent plugs of diversion tunnel of high arch dam | |
| CN210509282U (en) | Reverse slope tunnel construction drainage system | |
| CN204676504U (en) | The emptying maintenance structure of a kind of long tailwater tunnel group without gravity flow ejectment condition | |
| CN114575359B (en) | Weak-permeability soil layer side slope underground flood control method | |
| CN216642203U (en) | Water seepage and drainage structure for plug of construction branch hole | |
| CN210482455U (en) | Pump station diversion and drainage combined overpass culvert gate | |
| CN111321714B (en) | A overhaul drainage system for V style of calligraphy tailwater tunnel crowd | |
| CN209873741U (en) | Multifunctional reservoir | |
| CN204551507U (en) | A kind of rock foundation ductule local dewatering device | |
| CN213114921U (en) | A ecological filtering pond for rural river course construction | |
| CN105369779B (en) | Anti-flood valve and drainage pumping stations integrative-structure | |
| CN212336114U (en) | Green ecological self-drainage anti-floating device for sloping field building | |
| CN211547778U (en) | Centralized drainage system for water burst of subway station deep foundation pit step-by-step excavation | |
| CN211472426U (en) | Overhauling system of large-water-depth scoop type stilling pool | |
| CN210948792U (en) | Fire-fighting water system for highway tunnel | |
| CN209277087U (en) | Diversion works head stores clear erosion and deposition regulating reservoir | |
| CN105604076A (en) | Vacuum pump water-discharging device suitable for tunnel excavation | |
| CN205399447U (en) | Vacuum pump precipitation device suitable for tunnel excavation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |