CN207567892U - A kind of large size karst depression flood drainage system - Google Patents
A kind of large size karst depression flood drainage system Download PDFInfo
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- CN207567892U CN207567892U CN201721673094.4U CN201721673094U CN207567892U CN 207567892 U CN207567892 U CN 207567892U CN 201721673094 U CN201721673094 U CN 201721673094U CN 207567892 U CN207567892 U CN 207567892U
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- depression
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Abstract
The utility model discloses a kind of large-scale karst depression flood drainage systems, and including Cut-off ditch and tidal channel, Cut-off ditch is arranged on depression side slope or slope top, and tidal channel is arranged on depression and is interconnected with Cut-off ditch, and tidal channel is communicated to the sinkhole on depression.The utility model sets interconnected Cut-off ditch and tidal channel in karst depression in mima type microrelief landforms, tidal channel drains into water in karst depression in leak hole, Cut-off ditch plays a part of to collect rainfall rainwash, tidal channel, which rises, to be collected, dredge the effect of flowing water, Karst Mountain rainfall can effectively be slowed down, soil erosion is caused to surface erosion, the effect that rainfall flowing water avoids occurring in karst depression waterlogging and Secondary Geological Hazards is dredged simultaneously, it is plentiful that the utility model is suitable for rainfall, and the large-scale karst depression of ground unit complexity, engineering-built is easy, cost is relatively low, it is easily managed maintenance.
Description
Technical field
The utility model is related to a kind of large-scale karst depression flood drainage systems, belong in large-scale karst depression the technology neck that drains off floodwaters
Domain.
Background technology
Karst depression is the common negative land form in the karst area formed under corrosion, by peak cluster positive form and funnel-form
What negative land form common combination was formed.Radius scale can be also formed in the area that karst is developed by force to reach hundreds of meters or even have 1~2
The large-scale depression of kilometer.This kind of depression is typically under strong vertical circulation effect, caves in what is formed by cavern.In low-lying area
Widely distributed in ground to have a large amount of molten Study on Rock that collapse, depression bottom then deposits thicker clay layer.Moreover, in large-scale karst low-lying area
Also there is the rubble collapse deposit area formed recently and the high slope area being made of the peak cluster mountain ridge in ground.This causes in large size
Extremely complex ground unit interface and different microreliefs are then constituted in karst depression.Under condition of raining, rainwater passes through
Different ground units is pooled to depression bottom, and is drained by sinkhole to underground underground river system.Due to large-scale karst depression face
The catchment area of the larger each ground unit of product is different, and the rainwash formed after rainfall is also different.Especially for the pine in depression
It dissipates accumulation area and easily causes soil erosion under Rainfall simulator erosion.At present, drainning off floodwaters in face of this kind of large-scale karst depression complicated landform
Preventing waterlogging, there has been no ripe technologies for disposal facility.
Invention content
The technical problems to be solved in the utility model is：A kind of large-scale karst depression flood drainage system is provided, it is existing to solve
It is caused in soil erosion and depression in large-scale karst depression since rainfall causes in depression table soil to wash away present in technology
Flooded problem.
The technical solution that the utility model is taken is：A kind of large size karst depression flood drainage system, including Cut-off ditch and drains off floodwaters
Ditch, Cut-off ditch are arranged on depression side slope or incompact-deposit bodies top, and tidal channel is arranged on depression and is interconnected with Cut-off ditch,
Tidal channel is communicated to the sinkhole on depression.
Preferably, above-mentioned Cut-off ditch section is trapezium structure.
Preferably, above-mentioned tidal channel is rectangular configuration.
Preferably, drop step is provided in above-mentioned tidal channel, to play energy dissipating flowing water, alleviates washing away for insulated stream
Effect.
Preferably, tenon is provided in above-mentioned tidal channel, to play energy dissipating flowing water, alleviates the work washed away of insulated stream
With.
Preferably, above-mentioned Cut-off ditch and tidal channel are built by laying bricks or stones using stone masonry, and outer surface is both provided with concrete plastering
Layer.
The beneficial effects of the utility model：Compared with prior art, the effect of the utility model is as follows：
（1）The utility model sets interconnected Cut-off ditch and tidal channel in karst depression in mima type microrelief landforms, row
Great Gulch drains into water in karst depression in leak hole, Cut-off ditch play a part of collect rainfall rainwash, tidal channel rise collect,
The effect of flowing water is dredged, can effectively slow down Karst Mountain rainfall and soil erosion be caused to surface erosion, while dredge drop
Rain flowing water avoids occurring in karst depression the effect of waterlogging and Secondary Geological Hazards, and the utility model is plentiful suitable for rainfall, and
The large-scale karst depression of ground unit complexity, engineering-built is easy, and cost is relatively low, is easily managed maintenance.
Description of the drawings
Fig. 1 is the utility model embodiment planar structure schematic diagram；
Fig. 2 is the utility model embodiment karst depression block plan；
Fig. 3 is the utility model embodiment Cut-off ditch schematic diagram；
Fig. 4 is the utility model embodiment tidal channel schematic diagram；
Fig. 5 is the utility model embodiment tidal channel tenon schematic diagram；
Fig. 6 is the utility model embodiment tidal channel drop step schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawings and the utility model is described further in specific embodiment.
Embodiment 1：As shown in Fig. 1 ~ Fig. 6, a kind of large size karst depression flood drainage system, including Cut-off ditch 1 and tidal channel 2,
Cut-off ditch 1 is arranged on depression side slope area or depression sloped region top, and tidal channel 2 is arranged on depression and is interconnected with 1 phase of Cut-off ditch
Logical, tidal channel 2 is communicated to the sinkhole 3 on depression, and Cut-off ditch 1 plays a part of to collect rainfall rainwash, and tidal channel 2 plays remittance
Collect, dredge the effect of flowing water.
Preferably, above-mentioned Cut-off ditch 1 sets at least eight, and section is trapezium structure, and width B is in 600~1300mm, height
H is spent in 400~1000mm.
Preferably, above-mentioned tidal channel 2 sets at least four, and rectangular cross-section structure, width B is in 300~900mm, height
H is spent in 300~900mm.
Preferably, drop step 4 is provided in above-mentioned tidal channel 2, drop 4 high 400~450mm of step, to play energy dissipating
Flowing water alleviates the effect washed away of insulated stream.
Preferably, tenon 5, tenon 5 high 90~100mm, spacing 150mm, to play energy dissipating are provided in above-mentioned tidal channel 2
Flowing water alleviates the effect washed away of insulated stream.
Preferably, above-mentioned Cut-off ditch 1 and tidal channel 2 are built by laying bricks or stones using stone masonry, and outer surface is both provided with concrete and smears
Face layer.
A kind of method of drainning off floodwaters of large size karst depression flood drainage system, this method include the following steps：
（1）It determines microgeomorphologyd in karst depression, depression can be divided into peak cluster side slope area, depression sloped region, depression
Karst depression is divided into multiple charge for remittance cellular zones by gentle slope area according to hypsography and watershed in region is divided；
（2）According to the position of multiple charge for remittance cellular zone areas and mima type microrelief condition selection Cut-off ditch, select at depression peak
Cong Bianpo areas and depression sloped region top setting Cut-off ditch, Cut-off ditch section are trapezoidal, Cut-off ditch cross-sectional width B1With height H1Root
The computational methods suitable for small watershed crest discharge is used to calculate according to charge for remittance cellular zone catchment area where Cut-off ditch to obtain.According to
The size of depression catchment area can increase and decrease the quantity of Cut-off ditch, and catchment area is less than 0.5km2One of Cut-off ditch, charge for remittance are set
Area is in 1km2To 0.5km2Twice Cut-off ditch is set, and catchment area is more than 1km2Three Cut-off ditch are set；
（3）According to microrelief partitioning scenario in depression, the low-lying place in the sloped region of depression is laid perpendicular to depression bottom
Tidal channel.Tidal channel one end is connected with Cut-off ditch, and one end is connect with sinkhole, and tidal channel rectangular cross-section, drain off floodwaters furrow width
Spend B2With height H2It is obtained according to connected Cut-off ditch size, i.e., tidal channel area of section is twice of Cut-off ditch, to meet draining
It needs；
（4）Tidal channel locates setting drop step or tenon more suddenly in the gradient；
（5）Expand the original sinkhole entrance in depression, tidal channel is connect with sinkhole.
The above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, in the technical scope that any one skilled in the art discloses in the utility model, variation can be readily occurred in
Or replace, it should be covered within the scope of the utility model, therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain of profit requirement.
Claims (6)
1. a kind of large size karst depression flood drainage system, it is characterised in that：Including Cut-off ditch（1）And tidal channel（2）, Cut-off ditch（1）
It is arranged on depression side slope or incompact-deposit bodies top, tidal channel（2）It is arranged on depression and and Cut-off ditch（1）It is interconnected, row
Great Gulch（2）The sinkhole being communicated on depression（3）.
2. a kind of large-scale karst depression flood drainage system according to claim 1, it is characterised in that：Cut-off ditch（1）Section is
Trapezium structure.
3. a kind of large-scale karst depression flood drainage system according to claim 1, it is characterised in that：Tidal channel（2）For rectangle
Structure.
4. a kind of large-scale karst depression flood drainage system according to claim 1, it is characterised in that：Tidal channel（2）Interior setting
There is drop step（4）.
5. a kind of large-scale karst depression flood drainage system according to claim 1, it is characterised in that：Tidal channel（2）Interior setting
There is tenon（5）.
6. a kind of large-scale karst depression flood drainage system according to claim 1, it is characterised in that：Cut-off ditch（1）With drain off floodwaters
Ditch（2）It is built by laying bricks or stones using stone masonry, outer surface is both provided with concrete float coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721673094.4U CN207567892U (en) | 2017-12-05 | 2017-12-05 | A kind of large size karst depression flood drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721673094.4U CN207567892U (en) | 2017-12-05 | 2017-12-05 | A kind of large size karst depression flood drainage system |
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| CN207567892U true CN207567892U (en) | 2018-07-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868878A (en) * | 2019-03-29 | 2019-06-11 | 贵州正业工程技术投资有限公司 | A kind of large size Karst depression hydrophobic structure and its construction method |
| CN110432083A (en) * | 2019-08-30 | 2019-11-12 | 贵州正业工程技术投资有限公司 | A kind of karst depression surface vegetation ecological restoration device and its restorative procedure |
| CN111947605A (en) * | 2020-08-20 | 2020-11-17 | 上海同禾工程科技股份有限公司 | Slope safety monitoring system and monitoring method thereof |
-
2017
- 2017-12-05 CN CN201721673094.4U patent/CN207567892U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868878A (en) * | 2019-03-29 | 2019-06-11 | 贵州正业工程技术投资有限公司 | A kind of large size Karst depression hydrophobic structure and its construction method |
| CN110432083A (en) * | 2019-08-30 | 2019-11-12 | 贵州正业工程技术投资有限公司 | A kind of karst depression surface vegetation ecological restoration device and its restorative procedure |
| CN110432083B (en) * | 2019-08-30 | 2024-04-30 | 贵州正业工程技术投资有限公司 | Karst depression ground surface vegetation ecological restoration device and restoration method thereof |
| CN111947605A (en) * | 2020-08-20 | 2020-11-17 | 上海同禾工程科技股份有限公司 | Slope safety monitoring system and monitoring method thereof |
| CN111947605B (en) * | 2020-08-20 | 2023-05-09 | 上海同禾工程科技股份有限公司 | Slope safety monitoring system and monitoring method thereof |
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