CN208395782U - Using the row's guide structure for dynamically stopping silt storage capacity separation mud-rock flow - Google Patents
Using the row's guide structure for dynamically stopping silt storage capacity separation mud-rock flow Download PDFInfo
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- CN208395782U CN208395782U CN201820644920.0U CN201820644920U CN208395782U CN 208395782 U CN208395782 U CN 208395782U CN 201820644920 U CN201820644920 U CN 201820644920U CN 208395782 U CN208395782 U CN 208395782U
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Abstract
The utility model relates to a kind of row's guide structures for stopping silt storage capacity separation mud-rock flow using dynamic.The purpose of the utility model is to provide a kind of row's guide structures for stopping silt storage capacity separation mud-rock flow using dynamic easy for construction, safe and reliable.The technical solution of the utility model is: row's guide structure has original debris flow gully, the checkdam of debris flow gully is blocked in the relatively slow section setting of the ditch bed gradient of the debris flow gully, stop silt storage capacity to form mud-rock flow in checkdam upstream, the mud-rock flow stops silt storage capacity communicating downstream drainage channel, and drainage channel input elevation is higher than mud-rock flow and stops the estimated sedimentation elevation in silt storage capacity；The mud-rock flow stops silt storage capacity greater than 4~5 times of total values, and the library face width that mud-rock flow stops silt storage capacity is greater than 5~10 times of the debris flow gully width.Debris flow technical field of the utility model suitable for hydraulic and hydroelectric engineering, geological hazard control engineering is particularly suitable for the improvement of the insurmountable macrosolifluction ditch of conventional " the surely row of blocking " measure.
Description
Technical field
The utility model relates to a kind of row's guide structures for stopping silt storage capacity separation mud-rock flow using dynamic.Suitable for water conservancy and hydropower
Debris flow technical field in engineering, geological hazard control engineering, being particularly suitable for conventional " the surely row of blocking " measure can not solve
The improvement of macrosolifluction ditch certainly.
Background technique
China western mountainous areas complex geologic conditions, earthquake intensity are high, and the natural geologic hazards such as landslide, mountain torrents, mud-rock flow are got over
More to influence the construction and operation of hydroelectric project.Controlling Debris Flow most Normal practice is to build several structures of blocking along ditch (to block sand
Dam or check dam), steady ditch consolidates bed, and downstream builds drainage groove row and leads mud-rock flow, then is aided with the biological control measures such as afforestation.
Above-mentioned measure is effective for general middle-size and small-size mud-rock flow, but for macrosolifluction, general 5~10m's high
Blocking dam interception function is limited, and often a mud-rock flow just becomes silted up full, and these blocking dams are established on Riverbed mostly,
When large-scale or giant debris flow comes temporarily, the structure of blocking of these foundation shakiness is most probably destroyed by rush of water, the tamper of siltation
Body becomes mud-rock flow material resource instead, aggravates mud-stone flow disaster, and mud-rock flow, which just once occurred, for China Gansu destroys by rush of water and a series of block sand
Dam (or check dam) causes more massive mud-stone flow disaster, causes greatly to damage to local people's life security and national economy
Wound.Therefore need to improve Controlling Debris Flow thinking, to adapt to the improvement of macrosolifluction.
Summary of the invention
Technical problem to be solved by the utility model is: in view of the above problems, providing a kind of easy for construction, safety
The reliable row's guide structure for stopping silt storage capacity separation mud-rock flow using dynamic.
The technical scheme adopted by the utility model is a kind of row for stopping silt storage capacity separation mud-rock flow using dynamic leads knot
Structure has original debris flow gully, it is characterised in that: blocks mud-rock flow in the relatively slow section setting of the ditch bed gradient of the debris flow gully
The checkdam of ditch stops silt storage capacity to form mud-rock flow in checkdam upstream, which stops silt storage capacity communicating downstream drainage channel,
Drainage channel input elevation is higher than mud-rock flow and stops the estimated sedimentation elevation in silt storage capacity；
The mud-rock flow stops silt storage capacity greater than 4~5 times of total values, and the library face width that mud-rock flow stops silt storage capacity is big
In 5~10 times of the debris flow gully width.
The checkdam, which has, to be filled in one layer of draining transition zone on the dam foundation, is drained and has been filled dam body, dam on transition zone
Body upstream face is successively arranged draining transition zone and bed course, and in mat surface pneumatically placed concrete membrane, the draining of dam body upstream
Transition zone is connected with the draining transition zone below the dam body.
The dam body is formed using enrockment, native stone or slag body placement in layers, is layered thickness 80cm~120cm.
The mud-rock flow stops silt storage capacity bottom and is equipped with the clay bedding being connected with the checkdam.
The mud-rock flow stops silt storage capacity upstream and is equipped with the drain measure hole being connected to the debris flow gully.
The drain measure hole gradient is greater than 4%, and grid of blocking is arranged in entrance.
The drainage channel is protected using concrete or mortar laid stone lining.
The beneficial effects of the utility model are: the utility model debris flow gully the ditch bed gradient it is relatively slow, can be formed it is larger
The place of storage capacity by be arranged checkdam form enough storage capacity, stop mud rock glacier solid matter, by mud-rock flow be separated into flood or
Arsenicbearing gold ores discharge, the row of improving leads the service condition of facility, improves the safety of debris flow.The utility model overcomes
The governing problem of the insurmountable macrosolifluction ditch of conventional " the surely row of blocking " measure provides for the application of debris flow technology
New thinking and construction method.
Detailed description of the invention
Fig. 1 is the floor map of embodiment.
Fig. 2 is the vertical section schematic diagram of embodiment.
Fig. 3 is the diagrammatic cross-section of checkdam in embodiment.
Specific embodiment
As shown in Figure 1 and Figure 2, the present embodiment is a kind of row's guide structure for stopping silt storage capacity separation mud-rock flow using dynamic, is had
Original debris flow gully 1 blocks the checkdam 3 of debris flow gully 1 in the relatively slow section setting of the ditch bed gradient of debris flow gully 1, to keep off
3 upstream of dam forms mud-rock flow and stops silt storage capacity 2, and mud-rock flow stops silt storage capacity 2 greater than 2~5 times of total values, and mud-rock flow stops
The library face width of silt storage capacity 2 is greater than 5~10 times of 1 width of debris flow gully.Stop 2 downstream of silt storage capacity in mud-rock flow in this example to connect
Logical drainage channel 4,4 input elevation of drainage channel are higher than mud-rock flow and stop the estimated sedimentation elevation in silt storage capacity 2, and drainage channel 4 is pressed
Excretion standard of flood design flow section simultaneously considers part sediment siltation superelevation.
The present embodiment builds the drain measure hole 5 being connected to debris flow gully 1 or surface water channel in 3 dam site upstream of checkdam,
Row leads construction time upland water, to form 3 dry work condition of checkdam in drain measure hole 5 or surface water channel downstream.Water conservancy diversion
5 gradient of scupper need to be greater than 4%, and grid 5-1 of blocking is arranged in import, avoid silting in import and hole.
As shown in figure 3, checkdam 3 is drained with filling in one layer of draining transition zone 3-4 on the dam foundation 3-1 in this example
Dam body 3-2 is filled on transition zone 3-4,3-2 upstream face of dam body is successively arranged draining transition zone 3-4, bed course 3-3 and mixes
Solidifying soil membrane 3-5, draining transition zone 3-4 and the draining transition zone 3-4 below the dam body of 3-2 upstream of dam body are linked to be
One.Checkdam 3 fills dam body 3-2,3-2 placement in layers of dam body, thickness using engineering excavation waste material in the present embodiment
80cm~120cm, and with vibrating roller grinding compacting.Mud-rock flow stops 2 bottom of silt storage capacity and is equipped with the clay bedding being connected with checkdam 3
3-6, it is used for antiseepage, silt also to will form natural impervious blanket.
Drainage channel 4 is built on the basis of coating in the present embodiment, is protected using concrete or mortar laid stone lining, to avoid
Erosion damage.
The concrete construction method of the present embodiment is as follows:
A, 1 characteristic of debris flow gully is sufficiently investigated first, determines mud-rock flow bulk density, flow, a total value etc.
Debris flow characteristic parameter.
B, find the suitable position for checkdam 3 of constructing on the way in debris flow gully 1, the ditch bed gradient is relatively slow, can be formed compared with
Silt storage capacity 2 is stopped can form mud-rock flow in 3 upstream of checkdam in the place of big storage capacity.
C, the drain measure hole 5 being connected to debris flow gully 1 or surface water channel are built in 3 dam site upstream of checkdam, row, which leads, to apply
Duration upland water forms 3 dry work condition of checkdam.
D, the construction of checkdam 3 is carried out in 3 construction location of checkdam of debris flow gully 1 on the way, checkdam 3 selects to work as far as possible
Ground material or engineering works excavate waste material and build a dam, to reduce investment.
Checkdam 3 (illustrates) that specific implementation step is as follows by taking pneumatically placed concrete mask rock-fill dams as an example: first removing the dam foundation 3-1
Weeds, tree root, fertile soil, one layer of draining transition zone 3-4 is filled on the dam foundation 3-1, and draining 3-4 higher slice of transition zone fills dam
Body 3-2, thickness 80cm~120cm, and with vibrating roller grinding compacting, 3-2 upstream face of dam body successively constructs and has draining transition zone
3-4, bed course 3-3 and concrete anti-seepage mask 3-5, bottom storehouse is aided with 3-6 antiseepage of clay bedding before dam.
E, permanent drainage channel 4 is built in 3 side bank slope of checkdam excavation, 4 input elevation of drainage channel is higher than estimated become silted up
Product elevation, drainage channel 4 is by excretion standard of flood design flow section and considers part sediment siltation superelevation.
Stopping becoming silted up and clearing technology the specific method is as follows for silt storage capacity separation mud-rock flow is stopped using dynamic in the present embodiment:
Mud-rock flow initial stage is separated, mud-rock flow solid matter stops product and stops being separated into flood in 2 library of silt storage capacity or containing in mud-rock flow
Sha Shuihou passes through 4 safety discharge of drainage channel；
After mud-rock flow is stopped the siltation of silt storage capacity 2 into gentle depression by later period multiple mud-rock flow, dredging is not needed, by broad
Library face and gentle siltation surface gradient, debris flow velocity reduce rapidly, and so that mud-rock flow is lost the power for sweeping along boulder 6, greatly
Block stone 6 stops product substantially and in mud-rock flow stops 2 reservoir area entrance of silt storage capacity, and part small particles 7 are transported in library, only fine particle and
Silt 8 just flows into and is deposited on the preceding depression in dam, until 4 entrance of drainage channel is separated at flood or arsenicbearing gold ores.
The boulder 6 of mud debris flow deposit each so constantly traces back, forms dynamic siltation storage capacity 9, reaches separation mud-rock flow
It only drains off floodwaters the purpose of water.
Claims (7)
1. a kind of row's guide structure for being stopped silt storage capacity separation mud-rock flow using dynamic, is had original debris flow gully (1), feature exists
In: the checkdam (3) of debris flow gully (1) is blocked in the relatively slow section setting of the ditch bed gradient of the debris flow gully (1), in checkdam
(3) upstream forms mud-rock flow and stops silt storage capacity (2), which stops silt storage capacity communicating downstream drainage channel (4), drainage channel (4)
Input elevation is higher than mud-rock flow and stops the estimated sedimentation elevation in silt storage capacity (2)；
The mud-rock flow stops silt storage capacity (2) greater than 4~5 times of total values, and mud-rock flow stops the library face width of silt storage capacity (2)
Greater than 5~10 times of the debris flow gully (1) width.
2. the row's guide structure according to claim 1 for stopping silt storage capacity separation mud-rock flow using dynamic, it is characterised in that: described
Checkdam (3), which has, to be filled in one layer of draining transition zone (3-4) on the dam foundation (3-1), is drained and is filled on transition zone (3-4)
Have dam body (3-2), dam body (3-2) upstream face is successively arranged draining transition zone (3-4) and bed course (3-3), and in bed course
(3-3) surface pneumatically placed concrete membrane (3-5), the draining transition zone (3-4) of dam body (3-2) upstream and dam body lower section
Draining transition zone (3-4) be connected.
3. the row's guide structure according to claim 2 for stopping silt storage capacity separation mud-rock flow using dynamic, it is characterised in that: described
Dam body (3-2) is formed using enrockment, native stone or slag body placement in layers, is layered thickness 80cm~120cm.
4. the row's guide structure according to any one of claims 1 to 3 for stopping silt storage capacity separation mud-rock flow using dynamic, special
Sign is: the mud-rock flow stops silt storage capacity (2) bottom and is equipped with the clay bedding (3-6) being connected with the checkdam (3).
5. the row's guide structure according to claim 1 for stopping silt storage capacity separation mud-rock flow using dynamic, it is characterised in that: described
Mud-rock flow stops silt storage capacity (2) upstream and is equipped with the drain measure hole (5) being connected to the debris flow gully (1).
6. the row's guide structure according to claim 5 for stopping silt storage capacity separation mud-rock flow using dynamic, it is characterised in that: described
Drain measure hole (5) gradient is greater than 4%, and blocks grid (5-1) in entrance setting.
7. the row's guide structure according to claim 1 for stopping silt storage capacity separation mud-rock flow using dynamic, it is characterised in that: described
Drainage channel (4) is protected using concrete or mortar laid stone lining.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820644920.0U CN208395782U (en) | 2018-05-02 | 2018-05-02 | Using the row's guide structure for dynamically stopping silt storage capacity separation mud-rock flow |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820644920.0U CN208395782U (en) | 2018-05-02 | 2018-05-02 | Using the row's guide structure for dynamically stopping silt storage capacity separation mud-rock flow |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111639445A (en) * | 2020-06-19 | 2020-09-08 | 中国科学院、水利部成都山地灾害与环境研究所 | Method for measuring and calculating dangerousness of silt-returning accumulation body in front of debris flow dam in removal of blocking dam and application |
-
2018
- 2018-05-02 CN CN201820644920.0U patent/CN208395782U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111639445A (en) * | 2020-06-19 | 2020-09-08 | 中国科学院、水利部成都山地灾害与环境研究所 | Method for measuring and calculating dangerousness of silt-returning accumulation body in front of debris flow dam in removal of blocking dam and application |
| CN111639445B (en) * | 2020-06-19 | 2023-02-28 | 中国科学院、水利部成都山地灾害与环境研究所 | Method for measuring and calculating dangerousness of silt-returning accumulation body in front of debris flow dam in removal of retaining dam and application |
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