CN215562326U - Prevention and control system for blocking, shunting and water-stone separation of debris flow - Google Patents
Prevention and control system for blocking, shunting and water-stone separation of debris flow Download PDFInfo
- Publication number
- CN215562326U CN215562326U CN202121664908.4U CN202121664908U CN215562326U CN 215562326 U CN215562326 U CN 215562326U CN 202121664908 U CN202121664908 U CN 202121664908U CN 215562326 U CN215562326 U CN 215562326U
- Authority
- CN
- China
- Prior art keywords
- water
- debris flow
- dam
- blocking
- debris
- 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.)
- Expired - Fee Related
Links
Images
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
Landscapes
- Barrages (AREA)
Abstract
The utility model discloses a prevention and control system for debris flow blocking, diversion and water-stone separation, which comprises a plurality of blocking dams arranged on debris flow channels, wherein a debris blocking dam is arranged at the downstream of each blocking dam, a water collecting tank is arranged at the bottom of the debris blocking dam close to the upstream position, the upper surface of the water collecting tank is open and is provided with a filtering cover plate which is level with the ground, and an energy dissipation tank is arranged close to the downstream position of the debris blocking dam; the utility model can effectively realize the blocking, shunting and water-stone separation of the debris flow, reduce the damage of the debris flow to the sand dam, facilitate the desilting after the debris flow occurs and break the technical bottleneck of large-scale debris flow treatment.
Description
Technical Field
The utility model relates to the technical field of geological disaster prevention and control, in particular to a prevention and control system for debris flow blocking, diversion and water-stone separation.
Background
The debris flow is a common natural phenomenon in mountainous areas in China, is usually generated in valleys or slopes, is a solid-liquid two-phase fluid saturated with a large amount of silt stones and gravels, is in a motion state of viscous laminar flow or dilute turbulent flow and the like, is a result of comprehensive action of various natural factors and human factors, and has the characteristics of high flow speed, large flow, strong destructive power, strong burst property and the like. Once the debris flow occurs, various traffic facilities such as roads, railways, tunnels and the like are damaged, and meanwhile, river channels are blocked, crops are buried, buildings are damaged, and great harm is brought to life and property safety of people.
The outbreak of the debris flow in China is mainly influenced by rainfall factors. Therefore, the time law of the debris flow is basically consistent with the time law of the concentrated rainfall, has obvious seasonality and generally occurs in rainy summer and autumn. China's debris flow mainly occurs in the provinces of the southwest and the northwest, more than 100 towns above county level which are damaged or threatened by the debris flow are found out and mainly distributed in the provinces of the west such as Gansu, Sichuan, Yunnan and Tibet, and the number of towns at township level which are damaged or threatened by the debris flow is larger.
At present, a debris flow prevention project mainly comprises a debris dam, the possibility of direct damage of large-scale debris flows to the debris dam is high, the debris dam is mostly of a closed structure, a plurality of drain holes are formed in a dam body, water with the water level lower than the height of the drain holes cannot be drained under the action of rainfall, the structural stability of the debris dam is reduced under the long-term soaking of the water, the drain holes are easily blocked by solid silt or stones to lose the drainage function under the impact action of the debris flows, the debris dam is mostly of a vertical structure, the impact of the debris flows to a dam foundation easily causes stress concentration at the position to cause local impact damage, excessive debris flows out of the debris dam, the destructive power of the debris flows to the dam foundation is increased due to large fall, and particles with different particle sizes are accumulated together to be not beneficial to desilting after the debris flows occur.
Disclosure of Invention
The utility model aims to overcome the defects and provide a control system for blocking, shunting and water-stone separation of debris flow, which effectively realizes blocking, shunting and water-stone separation of the debris flow, reduces the damage of the debris flow to a sand blocking dam, is convenient for dredging after the debris flow occurs and breaks the technical bottleneck of large debris flow treatment.
In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a prevention and cure system for debris flow is blocked, is shunted and water-stone separation, is including locating a plurality of dams that block on the debris flow channel, block the dam low reaches and be equipped with the sand dam, be close to the bottom of the sand dam upstream position and seted up the catch basin, the catch basin upper surface is open and be equipped with the filtration apron of ground parallel and level, is close to the sand dam low reaches position and has seted up the energy dissipation pond.
Preferably, the water outlet end of the water collecting tank is communicated with the energy dissipation tank through a water discharge pipe.
Preferably, the drain pipe penetrates through the bottom of the sand blocking dam.
Preferably, the blocking dams are staggered with respect to each other.
Preferably, the upstream surface of the sand dam is of a cambered surface structure, the downstream surface of the sand dam is of a vertical surface structure, and the filtering cover plate is tangent to the starting point of the cambered surface of the upstream surface of the sand dam.
Preferably, the energy dissipation pool is of an arc groove structure, the water collecting pool is of a square groove structure, and a plurality of water passing holes are formed in the surface of the filtering cover plate.
Preferably, the number of the blocking dams is at least three, and the upstream surface of the blocking dams is of a cambered surface structure.
The utility model has the beneficial effects that: the utility model can effectively realize the blocking, shunting and water-stone separation of the debris flow, reduce the damage of the debris flow to the sand blocking dam, facilitate the desilting after the debris flow occurs and break the technical bottleneck of large-scale debris flow treatment; the method has the following beneficial effects:
1. the building material related in the utility model has the advantages of convenient material acquisition, low cost, simple structure and convenient construction.
2. The retaining dam is reasonable in stress, can be used for retaining, hedging and dissipating energy for debris flow, can change a flowing route, reduces the kinetic energy of the debris flow after multi-stage flow division, reduces the impact destructive power of the debris flow on the sand retaining dam, and plays a role in protecting the sand retaining dam.
3. The utility model realizes the separation of soil, stones and water by using the water collecting tank and the water discharging pipe, weakens the hydrodynamic condition of debris flow, and reduces the destructive power of the debris flow to the sand blocking dam.
4. The vertical structure of the sand dam is optimized into the arc structure, debris flow is guided to be converted from kinetic energy to potential energy, and the impact force of the debris flow on a dam foundation is reduced, so that the aim of improving the overall impact resistance of the sand dam is fulfilled.
5. The present invention discharges the separated water and stones into the energy dissipation pool, on one hand, the destructive power of the mud and stone flow from the top of the sand-blocking dam to the dam foundation is reduced, and on the other hand, the present invention is convenient for cleaning the water and stones after the mud and stone flow occurs.
Drawings
FIG. 1 is a schematic perspective view of a control system for debris flow containment, diversion and water and stone separation;
FIG. 2 is a schematic top view of the structure of FIG. 1;
fig. 3 is a schematic vertical sectional structure view of fig. 1.
Detailed Description
The utility model is described in further detail below with reference to the figures and specific embodiments.
As shown in fig. 1 to 3, a control system for debris flow blocking, diversion and water-stone separation comprises a plurality of blocking dams 2 arranged on a debris flow channel 1, wherein a sand blocking dam 3 is arranged at the downstream of each blocking dam 2, a water collecting tank 4 is arranged at the bottom of the debris flow channel near the upstream of the sand blocking dam 3, the upper surface of the water collecting tank 4 is open and provided with a filtering cover plate 5 which is flush with the ground, and an energy dissipation tank 6 is arranged near the downstream of the sand blocking dam 3.
Preferably, the water outlet end of the water collecting tank 4 is communicated with the energy dissipation tank 6 through a water discharge pipe 7.
Preferably, the drain pipe 7 is arranged at the bottom of the sand dam 3 in a penetrating manner.
Preferably, the barrages 2 are staggered with respect to each other.
Preferably, the upstream surface of the sand dam 3 is of a cambered surface structure, the downstream surface of the sand dam 3 is of a vertical surface structure, and the filtering cover plate 5 is tangent to the starting point of the cambered surface of the upstream surface of the sand dam 3.
Preferably, the energy dissipation pool 6 is of an arc groove structure, the water collection pool 4 is of a square groove structure, and the surface of the filtering cover plate 5 is provided with a plurality of water through holes 5.1.
Preferably, the number of the barrages 2 is at least three, and the upstream surface of the barrages is of a cambered surface structure.
In the technical scheme, the distance between the open end of the blocking dam 2 and the ditch wall of the debris flow ditch 1 pointed by the blocking dam is less than or equal to one half of the width of the debris flow ditch 1; the distance between the open end of the blocking dam 2 and the wall of the debris flow channel 1 pointed by the blocking dam allows dredging vehicles to pass through; the spacing between the blocking dams 2 is kept consistent, the spacing between the blocking dams 2 is larger than the operation radius of the dredging vehicle, and the height of the blocking dam 2 is kept consistent with that of the sand blocking dam 3; one or more water collecting tanks 4 are arranged on the same debris flow channel; one or more drain pipes 7 are arranged, the pipe diameter is 200-500 mm, and the drain pipes are obliquely arranged; the bottom of the water collecting tank 4 is higher than the other side substrate of the sand dam 3; the size of the filtering cover plate 5 is larger than that of the water collecting tank, and the aperture of the water passing hole is 15-75 mm; the width of the water collecting tank 4 changes along with the width change of the debris flow channel 1; the upstream surface of the sand blocking dam 3 is an arc surface, and the height is 5-20 m; the energy dissipation pool 6 is of an arc groove structure, and the depth of the arc groove structure is 2-5 m.
The concrete construction process comprises the following steps: constructing a blocking dam 2 and a sand blocking dam 3 in a debris flow circulation area;
a collecting tank 4 is excavated at the upstream of the sand blocking dam 3, a drain pipe 7 is placed to be communicated with the collecting tank 4, the drain pipe penetrates through the sand blocking dam 3, and an energy dissipation tank 6 is excavated behind the sand blocking dam 3;
the blocking dam 2 and the sand blocking dam 3 are constructed by masonry stones;
wherein, the water collecting tank 4 is supported by bricks after being dug, and then is plastered by concrete;
wherein, the energy dissipation pool 6 is constructed and then plastered by concrete.
The working principle of the embodiment is as follows:
when a debris flow occurs, the three retaining dams 2 shown in fig. 1 form a first-stage retaining system, the retaining dams 2 retain the debris flow, carry out hedging energy dissipation, change the flow path of the debris flow, and because the retaining dams are arranged in a staggered manner, the next retaining dam always faces the outlet of the previous retaining dam, so that the debris flow can be divided step by step, the flow velocity, the flow rate and the impact force of the debris flow after step by step division are obviously reduced, when the debris flow passes through the water collecting tank 4, water and stones with the apertures smaller than the water through apertures 5.1 of the filtering cover plate 5 at the top of the debris flow permeate into the water collecting tank 4, and water in the water collecting tank 4 can enter the energy dissipation tank 6 through the water discharge pipe 7, so that the hydrodynamic conditions of the debris flow are reduced, and the effects of protecting the debris retaining dams 3 are achieved; the debris flow is lifted by the debris dam 3 through the arc-shaped surface design of the debris dam, the debris flow is converted from kinetic energy to potential energy, the overall impact resistance of the debris dam 3 is improved, the impact force of the debris flow on a dam foundation is reduced, and when the debris flow comes out of the debris dam 3, the energy dissipation pool 9 can obviously play a role in reducing the damage force of the debris flow on the dam foundation. After the debris flow is finished, the dredging vehicles are organized to enter the debris flow channel 1 for dredging, the distance between the blocking dams 2 meets the operation radius of the dredging vehicles, and the distance between the outlets of the blocking dams 2 and the width of the channel wall meets the requirement that the vehicles pass through, so that the dredging vehicles can conveniently shuttle between the blocking dams 2 and the sand blocking dams 3, and the blocking areas at all levels are thoroughly desilted.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the utility model.
Claims (7)
1. The utility model provides a prevention and cure system that is used for mud-rock flow to block, reposition of redundant personnel and water-rock separation, is including locating a plurality of retaining dams (2) on mud-rock flow channel (1), its characterized in that: the downstream of the blocking dam (2) is provided with a sand blocking dam (3), a water collecting tank (4) is arranged at the bottom of the ground close to the upstream of the sand blocking dam (3), the upper surface of the water collecting tank (4) is open and provided with a filtering cover plate (5) which is flush with the ground, and an energy dissipation tank (6) is arranged close to the downstream of the sand blocking dam (3).
2. The control system for debris flow damming, diversion and water and stone separation according to claim 1, wherein: the water outlet end of the water collecting tank (4) is communicated with the energy dissipation tank (6) through a water discharge pipe (7).
3. A control system for debris flow damming, diversion and water and stone separation according to claim 2, characterized in that: the drain pipe (7) penetrates through the bottom of the sand blocking dam (3).
4. The control system for debris flow damming, diversion and water and stone separation according to claim 1, wherein: the blocking dams (2) are arranged in a staggered mode.
5. The control system for debris flow damming, diversion and water and stone separation according to claim 1, wherein: the upstream surface of the sand blocking dam (3) is of a cambered surface structure, the downstream surface of the sand blocking dam (3) is of a vertical surface structure, and the filtering cover plate (5) is tangent to the starting point of the cambered surface of the upstream surface of the sand blocking dam (3).
6. The control system for debris flow damming, diversion and water and stone separation according to claim 1, wherein: the energy dissipation pool (6) is of an arc groove structure, the water collecting pool (4) is of a square groove structure, and a plurality of water passing holes (5.1) are formed in the surface of the filtering cover plate (5).
7. The control system for debris flow damming, diversion and water and stone separation according to claim 1, wherein: the number of the blocking dams (2) is at least three, and the upstream surfaces of the blocking dams are of cambered surface structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121664908.4U CN215562326U (en) | 2021-07-21 | 2021-07-21 | Prevention and control system for blocking, shunting and water-stone separation of debris flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121664908.4U CN215562326U (en) | 2021-07-21 | 2021-07-21 | Prevention and control system for blocking, shunting and water-stone separation of debris flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215562326U true CN215562326U (en) | 2022-01-18 |
Family
ID=79827323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121664908.4U Expired - Fee Related CN215562326U (en) | 2021-07-21 | 2021-07-21 | Prevention and control system for blocking, shunting and water-stone separation of debris flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215562326U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737528A (en) * | 2022-06-14 | 2022-07-12 | 中国科学院、水利部成都山地灾害与环境研究所 | Water-stone separation expansion type debris flow silt stopping field and construction method thereof |
| CN116905438A (en) * | 2023-06-25 | 2023-10-20 | 中国市政工程中南设计研究总院有限公司 | Waterstone diversion type debris flow interception system |
-
2021
- 2021-07-21 CN CN202121664908.4U patent/CN215562326U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737528A (en) * | 2022-06-14 | 2022-07-12 | 中国科学院、水利部成都山地灾害与环境研究所 | Water-stone separation expansion type debris flow silt stopping field and construction method thereof |
| CN114737528B (en) * | 2022-06-14 | 2022-08-23 | 中国科学院、水利部成都山地灾害与环境研究所 | Water-stone separation expansion type debris flow silt stopping field and construction method thereof |
| CN116905438A (en) * | 2023-06-25 | 2023-10-20 | 中国市政工程中南设计研究总院有限公司 | Waterstone diversion type debris flow interception system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110952508B (en) | A kind of prevention method for mountain torrent and debris flow disaster | |
| CN102162229A (en) | Sediment storage dam for protecting against large-scale low-frequency debris flow | |
| CN106801403B (en) | A method for preventing debris flow disasters and recycling debris flow products | |
| CN103726476B (en) | A kind of ecological pollution and bank protecting method protecting water head site | |
| CN215562326U (en) | Prevention and control system for blocking, shunting and water-stone separation of debris flow | |
| CN108914886B (en) | A kind of drainage equipment for grading energy dissipation of debris flow | |
| CN111254882A (en) | A hedging energy dissipation type debris flow diversion system | |
| CN206693187U (en) | A kind of spillway structure | |
| CN207376562U (en) | A kind of key water control project that can filter silt | |
| CN114960536A (en) | Early-stage presetting processing device and method for damming dam | |
| CN211283925U (en) | Formula of sinking buffering area highway runoff purifier | |
| CN202214710U (en) | Overflow and water discharge integrated sluice weir | |
| CN216809747U (en) | Damper body flexible mesh block protective structure | |
| CN210917200U (en) | Permanent structure of renovating of dammed lake | |
| CN206428602U (en) | Prevent mud from blocking the roadbed both sides shallow seated groundwater connectivity structure with soil erosion | |
| CN206752629U (en) | A kind of municipal works rainwater inspection well | |
| CN119021140A (en) | A flash flood prevention method based on the combination of dams, pipes and beaches | |
| CN103233440A (en) | Slag type debris flow formation mechanism based prevention method | |
| CN218622092U (en) | Novel seepage-proofing structure for key part of high core rockfill dam | |
| CN219218844U (en) | Automatic underwater separation device for riverbed sand and stones | |
| CN217267294U (en) | Earth-rock dam body structure combining downstream stepping and over-standard flood discharging | |
| CN213173390U (en) | Dustpan-shaped debris flow blocking and guiding structure | |
| CN217053250U (en) | A arrange flood drain structure for mountain area | |
| CN213867866U (en) | A segmented interception water purification ecological slope protection system | |
| CN104963379A (en) | Water taking structure for mountainous area river course |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: BOLI TECHNOLOGY (HUBEI) Co.,Ltd. Assignor: CHINA THREE GORGES University Contract record no.: X2022980017328 Denomination of utility model: A Prevention and Control System for Debris Flow Retaining, Diversion and Water rock Separation Granted publication date: 20220118 License type: Exclusive License Record date: 20221009 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |