CN220619998U - Roller compacted concrete dam for pumping and draining water by wrapping gravel layer with geotextile - Google Patents
Roller compacted concrete dam for pumping and draining water by wrapping gravel layer with geotextile Download PDFInfo
- Publication number
- CN220619998U CN220619998U CN202322184492.1U CN202322184492U CN220619998U CN 220619998 U CN220619998 U CN 220619998U CN 202322184492 U CN202322184492 U CN 202322184492U CN 220619998 U CN220619998 U CN 220619998U
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- China
- Prior art keywords
- water
- geotextile
- gravel layer
- roller compacted
- compacted concrete
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 239000004746 geotextile Substances 0.000 title claims abstract description 47
- 239000011382 roller-compacted concrete Substances 0.000 title claims abstract description 37
- 238000005086 pumping Methods 0.000 title claims abstract description 22
- 239000004576 sand Substances 0.000 claims abstract description 24
- 239000002689 soil Substances 0.000 claims abstract description 13
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 13
- 239000003651 drinking water Substances 0.000 claims description 2
- 235000020188 drinking water Nutrition 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 3
- 230000008859 change Effects 0.000 abstract description 3
- 230000002262 irrigation Effects 0.000 abstract description 2
- 238000003973 irrigation Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
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- Sewage (AREA)
Abstract
The utility model discloses a roller compacted concrete dam for pumping and draining a sand gravel layer by using geotextile, which comprises a roller compacted concrete dam, a geotextile-coated sand gravel layer, a water level sensing device, a water pump and a water pumping pipe, wherein the geotextile-coated sand gravel layer consists of geotextile and gravels coated in the geotextile; the water level sensing device is divided into a top water level sensing device and a bottom water level sensing device which are respectively arranged on the top surface and the lower end part of the geotextile wrapped sand gravel layer; the water pumps are arranged at the lower part of the rear side of the geotextile wrapped gravel layer, and each water pump is correspondingly provided with a water suction pipe. The geotextile wrapped gravel layer made of sand can change the weight of the geotextile according to the water head difference between the upstream and the downstream and timely pumping and draining, so as to prevent the soil flowing in the downstream area from being damaged; the water pumping equipment is arranged to collect and utilize, and the added downstream water resource is utilized for irrigation and other projects, so that the comprehensive utilization of natural resources is realized.
Description
Technical Field
The utility model relates to the technical field of hydraulic engineering, in particular to a roller compacted concrete dam for pumping and draining a gravel layer by using geotextile.
Background
In dam construction, roller compacted concrete dam technology has become a commonly used building technology, but roller compacted concrete dam can cause the upstream water head difference of dam body and downstream water head difference to increase sharply in the serious period of flood disaster, and then lead to the seepage effect in dam foundation surface soil to increase sharply, can lead to the downstream soil flowing phenomenon of dam body when serious, thereby cause the regional flood disaster of low reaches. Currently, in order to prevent the surface soil infiltration slope of the downstream area, the infiltration is reduced by adopting a cover weight mode of a steel plate of the downstream area, and drainage relief wells are paved in the downstream area to increase the pressure weight of the downstream area so as to increase the resistance. The existing structure can prevent the surface soil in the downstream area from penetrating but can not treat the downstream water in time, the danger of soil flowing still exists, and most of the existing structures have limited functions of fixed size when dealing with different floods.
Disclosure of Invention
Aiming at the defects existing in the prior art, the technical problem to be solved by the utility model is to provide the roller compacted concrete dam which can change the self weight to prevent the soil from being damaged and fully uses the downstream water resource to wrap the sand gravel layer for pumping and draining by using the geotextile.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a utilize geotextile to wrap up roller compacted concrete dam of sand gravel layer drainage, includes roller compacted concrete dam, geotextile to wrap up sand gravel layer, water level sensing device, water pump and drinking-water pipe, roller compacted concrete dam separates the regional water of the downstream of front end upstream and rear end, upstream regional water flows into the downstream as the regional water of downstream through the dam foundation surface soil layer, geotextile wrap up sand gravel layer is located on the regional water dam foundation of downstream and hugs closely roller compacted concrete dam lower extreme and set up, geotextile wrap up sand gravel layer by geotextile and wrap up gravel in geotextile; the water level sensing device is divided into a top water level sensing device and a bottom water level sensing device which are respectively arranged at the top surface and the lower end part of the geotextile wrapped sand gravel layer; the water pumps are arranged at the lower part of the rear side of the geotextile wrapped gravel layer, and each water pump is correspondingly provided with a water suction pipe.
Preferably, the front and rear sides of the roller compacted concrete dam are provided with inclined planes, water in the upstream area of the water flow flows into the downstream through the inclined planes, damage to the dam due to water acting force of vertical falling is reduced, meanwhile, the gravity center of the roller compacted concrete dam can be reduced by making the inclined planes on the back surface, the contact area between the bottom surface and the river bottom is increased, and the structure is stable.
Preferably, the roller compacted concrete dam is mainly made of sand gravel and crushed gravel, natural materials are used, local materials are conveniently obtained, and the material transportation cost is saved.
Preferably, the top water level sensing device and the bottom water level sensing device are tightly attached to the roller compacted concrete dam, and the water level sensing device cannot be stably fixed when upward flowing water is prevented from flowing in.
Preferably, the water pumps are uniformly arranged in a row at intervals along the left-right direction.
Preferably, the water pumping pipe is an L-shaped water pipe.
The utility model has the beneficial effects that:
1) Geotextile wrap gravel layer made of sand can change own weight according to the water head difference between the upstream and the downstream and timely water pumping and draining, prevent the soil flowing in the downstream area from being damaged, and achieve the effects of flood control and disaster reduction.
2) The geotextile wrapped gravel layer is made of sand gravel, so that local materials are conveniently obtained, the transportation cost is saved, and meanwhile, the geotextile used for wrapping is low in manufacturing cost and good in performance.
3) The water pumping equipment is arranged to collect and utilize, and the added downstream water resource is utilized for irrigation and other projects, so that the comprehensive utilization of natural resources is realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic perspective view of the present utility model;
in the figure: the concrete dam comprises a 1-roller compacted concrete dam, a 2-geotextile, a 3-top water level sensing device, a 4-bottom water level sensing device, a 5-water pump, a 6-water pumping pipe, 7-upstream area water, 8-downstream area water, 9-dam foundation topsoil layer and 10-gravel.
Detailed Description
For a better understanding of the improvements of the present utility model with respect to the prior art, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments.
As shown in fig. 1-2, a roller compacted concrete dam for pumping and draining a sand gravel layer by using geotextile is mainly composed of a roller compacted concrete dam 1, a geotextile wrapped sand gravel layer, a water level sensing device, a water pump 5 and a water pumping pipe 6, wherein the roller compacted concrete dam 1 separates upstream area water 7 at the front end from downstream area water 8 at the rear end, the upstream area water 7 flows into the downstream through a dam foundation surface soil layer to serve as downstream area water 8, and the geotextile wrapped sand gravel layer is positioned on the downstream area water 8 dam foundation and is tightly attached to the lower end of the roller compacted concrete dam 1.
The geotextile-coated gravel layer is composed of geotextile 2 and gravel 10 coated in the geotextile 2. The geotextile is wrapped by the sand gravel layer by the geotextile 2, so that the geotextile has low cost and good physical and mechanical properties. When the water level difference between the water 7 in the upstream area and the water 8 in the downstream area is the largest, the seepage force borne by the soil body in the lower area is too large, meanwhile, the geotextile wraps the sand gravel layer and is basically in an anhydrous state, the weight of the gravel 10 is natural and severe, the weight resistance can be provided to resist seepage damage load, and the soil flowing in the downstream area is prevented from being damaged.
Along with the seepage development, water gradually flows into the geotextile-wrapped sand gravel layer, at the moment, the upstream water level difference is gradually reduced, the weight of the geotextile-wrapped sand gravel layer is gradually changed from natural weight to floating weight, the seepage load is reduced in the process, meanwhile, the resistance is gradually reduced, and the resistance is always ensured to be larger than the load by being matched with a water level sensing device and a water pump 5.
The position sensing device is divided into a top water level sensing device 3 and a bottom water level sensing device 4 which are respectively arranged on the top surface and the lower end part of the geotextile wrapped gravel layer. The water pumps 5 are arranged at the lower part of the rear side of the geotextile wrapped gravel layer, and each water pump 5 is correspondingly provided with a water suction pipe 6. When the water level reaches, the top water level sensing device 3 sends a prompt to start the water pump 5 to start pumping until the water level is reduced to trigger the bottom water level sensing device 4 to send a pumping completion prompt, and pumping is stopped.
Preferably, the front surface and the rear surface of the roller compacted concrete dam 1 are inclined surfaces, so that the roller compacted concrete dam 1 is reduced to directly receive vertical water acting force, the rear end is a back surface, the gravity center of the dam can be reduced by making an inclined surface, the contact area between the bottom surface and the river bottom is increased, and the structure is stable.
Preferably, the roller compacted concrete dam 1 is mainly made of sand gravel and crushed gravel, and adopts natural materials, so that local materials are conveniently obtained, and the material transportation cost is saved.
Preferably, the top water level sensing means 3 and the bottom water level sensing means 4 are arranged in close proximity to the roller compacted concrete dam 1.
Preferably, the water pumps 5 are arranged in a row at uniform intervals in the left-right direction.
Preferably, the water suction pipe 6 is an L-shaped water pipe.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides an utilize geotechnical fabric parcel gravel layer drainage's roller compacted concrete dam, including roller compacted concrete dam (1), geotechnical fabric parcel gravel layer, water level sensing device, water pump (5) and drinking-water pipe (6), roller compacted concrete dam (1) separates front end upstream regional water (7) and rear end's low reaches regional water (8), upstream regional water (7) are as low reaches regional water (8) through dam foundation surface soil layer inflow low reaches, geotechnical fabric parcel gravel layer is located and hugs closely roller compacted concrete dam (1) lower extreme setting on low reaches regional water (8) dam foundation, its characterized in that: the geotextile-coated gravel layer consists of geotextile (2) and gravel (10) coated in the geotextile (2); the water level sensing device is divided into a top water level sensing device (3) and a bottom water level sensing device (4) which are respectively arranged on the top surface and the lower end part of the geotextile wrapped sand gravel layer; the water pumps (5) are arranged at the lower part of the rear side of the geotextile wrapped gravel layer, and each water pump (5) is correspondingly provided with a water suction pipe (6).
2. A roller compacted concrete dam for pumping and draining a gravel layer by using geotextile according to claim 1, wherein: the front surface and the rear surface of the roller compacted concrete dam (1) are provided with inclined surfaces.
3. A roller compacted concrete dam for pumping and draining a gravel layer by using geotextile according to claim 1, wherein: the roller compacted concrete dam (1) is mainly made of sand gravel and crushed gravel.
4. A roller compacted concrete dam for pumping and draining a gravel layer by using geotextile according to claim 1, wherein: the top water level sensing device (3) and the bottom water level sensing device (4) are closely attached to the roller compacted concrete dam (1).
5. A roller compacted concrete dam for pumping and draining a gravel layer by using geotextile according to claim 1, wherein: the water pumps (5) are uniformly arranged in a row at intervals along the left-right direction.
6. A roller compacted concrete dam for pumping and draining a gravel layer by using geotextile according to claim 1, wherein: the water suction pipe (6) is an L-shaped water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322184492.1U CN220619998U (en) | 2023-08-15 | 2023-08-15 | Roller compacted concrete dam for pumping and draining water by wrapping gravel layer with geotextile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322184492.1U CN220619998U (en) | 2023-08-15 | 2023-08-15 | Roller compacted concrete dam for pumping and draining water by wrapping gravel layer with geotextile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220619998U true CN220619998U (en) | 2024-03-19 |
Family
ID=90227120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322184492.1U Active CN220619998U (en) | 2023-08-15 | 2023-08-15 | Roller compacted concrete dam for pumping and draining water by wrapping gravel layer with geotextile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220619998U (en) |
-
2023
- 2023-08-15 CN CN202322184492.1U patent/CN220619998U/en active Active
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