CN106049373B - Mud-rock flow is blocked gravity dam structure - Google Patents
Mud-rock flow is blocked gravity dam structure Download PDFInfo
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- CN106049373B CN106049373B CN201610581441.4A CN201610581441A CN106049373B CN 106049373 B CN106049373 B CN 106049373B CN 201610581441 A CN201610581441 A CN 201610581441A CN 106049373 B CN106049373 B CN 106049373B
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- dam body
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- concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/08—Wall dams
- E02B7/10—Gravity dams, i.e. those in which the weight of the structure prevents overturning
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
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Abstract
Block gravity dam structure the invention discloses a kind of mud-rock flow, including the dam body in bottom insertion riverbed rock mass；For dam body by being formed without husky concreting, the porosity of non-fine concrete is 15%~25%；The concrete cushion that thickness is 1m is provided between the foundation plane of riverbed rock mass and dam body bottom, concrete cushion upper surface is disposed with more capillary penetrating drainage bands along covalency, and 0.3m~1m in storehouse is goed deep into upstream one end of the every capillary penetrating drainage band；Geotextile layer is provided with the top of dam body, the armored concrete pouring layer that thickness is 0.5m is provided with above the geotextile layer.The invention has the advantages that the dam body generally permeable structure, drainage effect are good；The capillary penetrating drainage band is draining not bridging structure, further increases the permeable effect of dam body.Present invention is particularly suitable for the mud-rock flow without boulder or mudflow harnessing project, also may extend to V-arrangement ditch road Controlling Debris Flow.
Description
Technical field
The present invention relates to mud-rock flow blocking dam, block gravity dam structure more particularly, to mud-rock flow.
Background technology
Mountain area disaster prevention is blocked engineering, is included in the afforestation of cheuch area, intercepting ditch is repaiied on paddy top, further includes root
According to landform, geological conditions and debris flow scale, single-stage or multistage blocking dam are set in cheuch middle and lower reaches.The blocking dam has mixed
Solidifying soil gravity dam, arch dam etc..The structural requirement of above-mentioned blocking dam must be with hole or gap, so as to sluicing and intercepting sand
Stone, its existing deficiency are that construction quality is not easy to ensure, impact resistance is poor, is easily destroyed by rush of water；Concrete gravity dam water penetration
Not strong, dam body perforate stays seam excessive, easily blocks and difficulty of construction is big.
Present invention aims at provide a kind of mud-rock flow to block gravity dam structure.
To achieve the above object, the present invention takes following technical proposals：
The dam body that mud-rock flow of the present invention is blocked in gravity dam structure, including bottom insertion riverbed rock mass；It is described
Dam body is poured by the non-fine concrete marked as C20 and formed, and the porosity of the non-fine concrete is 15%~25%；Positioned at described
Thickness is provided between the foundation plane of riverbed rock mass and dam body bottom as 1m, the concrete cushion marked as C20, the concrete
Bed course upper surface is disposed with more capillary penetrating drainage bands along covalency, and storehouse is goed deep into upstream one end of the every capillary penetrating drainage band
Interior 0.3m~1m；Geotextile layer is provided with the top of dam body, be provided with above the geotextile layer thickness for 0.5m, marked as
The armored concrete pouring layer of C50.
The ratio of mud of the non-fine concrete marked as C20 is 0.35~0.45, and used aggregate is rubble or ovum
Stone, particle diameter are 0.01m~0.02m.
The adjacent capillary penetrating drainage band spacing is 2m.
The capillary penetrating drainage band is made of width of 0.2m, thickness of the PVC flexible plastic bands of 0.002m, the PVC
The capillary water-guiding hole of multiple a diameter of 0.001m is offered in flexible plastic band along its length, the adjacent capillary water-guiding hole
Centreline space away from for 0.0015m, divide along its length by the lower section for being located at lower surface each capillary water-guiding hole in PVC flexible plastics
The water suction groove being connected with corresponding capillary water-guiding hole is not offered, and the width of the water suction groove is 0.0003m.
1.5~3.0m of top width of the dam body, the upstream face of dam body is vertical surface, and the downstream face of dam body is that the gradient is 1:
0.6~1:0.7 inclined-plane.
The top of the dam body offers overflow port along covalency, and the transverse shape of the overflow port is rectangle, trapezoidal
Or triangle.
The invention has the advantages that the dam body generally permeable structure, drainage effect are good；The capillary penetrating drainage band is row
Water not bridging structure, further increases the permeable effect of dam body.Present invention is particularly suitable for mud-rock flow or mud without boulder
Harnessing project is flowed, also may extend to V-arrangement ditch road Controlling Debris Flow.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the A-A profile structure diagram of Fig. 1.
Fig. 3 is the structure diagram of capillary penetrating drainage band of the present invention.
Embodiment
As shown in Figs. 1-3, mud-rock flow of the present invention is blocked gravity dam structure, including bottom insertion riverbed rock mass 1
Interior dam body 2；The dam body 2 is poured by the non-fine concrete marked as C20 to be formed, and the ratio of mud of the non-fine concrete is
0.35~0.45, used aggregate is the rubble or cobble of uniform particle diameter, particle diameter selected as 0.01m, 0.015m or 0.02m,
2 porosity of dam body that non-fine concrete pours is 15%~25%, and the height 10m of dam body 2, the top width of dam body 2 is according to design requirement
Selected between 1.5~3.0m, the upstream face 3 of dam body 2 is vertical surface, and the downstream face 4 of dam body 2 is that the gradient is 1:0.6~1:0.7
Inclined-plane.Thickness is provided between 2 bottom of foundation plane and dam body of riverbed rock mass 1 as 1m, the common coagulation marked as C20
Soil padding 5,5 upper surface of concrete cushion are disposed with more capillary penetrating drainage bands 6, the adjacent capillary penetrating row along covalency
The spacing of water band 6 is 2m, and 0.3m~1m in storehouse is goed deep into upstream one end of every capillary penetrating drainage band 6；The top of dam body 2 is provided with
Geotextile layer 7, the geotextile layer 7 are provided with thickness as 0.5m, the armored concrete pouring layer 8 marked as C50 above.
The capillary penetrating drainage band 6 is made of width of 0.2m, thickness of the PVC flexible plastic bands of 0.002m, the PVC
The capillary water-guiding hole 9 of multiple a diameter of 0.001m, the adjacent capillary water-guiding hole 9 are offered in flexible plastic band along its length
Centreline space away from for 0.0015m, be located at the lower section of each capillary water-guiding hole 9 along length side with lower surface in PVC flexible plastics
To offering the water suction groove 10 that is connected with corresponding capillary water-guiding hole 9 respectively, the width of the water suction groove 10 is
0.0003m。
For some areas, to meet flood discharge requirement, runner center position can be located at the top of dam body 2 along river
To overflow port 11 is offered, overflow port 11 is as needed, its transverse shape can select rectangle, trapezoidal or triangle.
The dam body 2 of the present invention is poured by the non-fine concrete marked as C20 to be formed, therefore dam body 2 is the mixed of porous permeable
Xtah Crude Clay structure, drainage effect are good.Its intensity can be between C25~C10, and intensity index fully meets coagulation in gravity dam dam body
The requirement of native label.For certain areas, according to the needs of the stabilization of design, rock can be goed deep into by down-set joint bar in dam body 2
In the basement rock of body 1.When blocking dam is located on the basis of sand gravel, basal surface buried depth should be greater than freezing line 0.25m, and be more than current
Scouring depth 1.0m.
Since the general longitudinal slope of mountain torrents ditch is steeper, mud-rock flow is holds sandstone current under the arm at a high speed, to meet resistant abrasion requirement, dam body 2
The flow-passing surface at top sets thickness as 0.5m, the armored concrete pouring layer 8 marked as C50.
The anti-blocking principle of capillary penetrating drainage band 6 is：The width of water suction groove 10 is 0.0003m, straight compared with capillary water-guiding hole 9
The narrow many of footpath 0.001m, therefore, the fine particle less than 0.0003m, which enters in capillary vessel, to be discharged with water；And it is more than
The fine particle of 0.0003m cannot then enter in capillary water-guiding hole 9, i.e., cannot cause the blocking of capillary penetrating drainage band 6, and treat position
After the soil stabilization of water suction 10 surrounding of groove of capillary penetrating drainage band 6, you can form natural loaded filter, make capillary penetrating drainage
Band 6 has from cleaning function；0.3m~1m in storehouse is goed deep into the upstream end of capillary penetrating drainage band 6, preferably meets that draining is blocked to reach
The purpose of sandstone.
Claims (4)
- Dam body in the gravity dam structure 1. a kind of mud-rock flow is blocked, including bottom insertion riverbed rock mass；It is characterized in that：It is described Dam body is poured by the non-fine concrete marked as C20 and formed, and the porosity of the non-fine concrete is 15%~25%；Positioned at described Thickness is provided between the foundation plane of riverbed rock mass and dam body bottom as 1m, the concrete cushion marked as C20, the concrete Bed course upper surface is disposed with more capillary penetrating drainage bands along covalency, and storehouse is goed deep into upstream one end of the every capillary penetrating drainage band Interior 0.3m~1m；Geotextile layer is provided with the top of dam body, be provided with above the geotextile layer thickness for 0.5m, marked as The armored concrete pouring layer of C50；The adjacent capillary penetrating drainage band spacing is 2m；The capillary penetrating drainage band is by width 0.2m, thickness are made of the PVC flexible plastic bands of 0.002m, are offered along its length in the PVC flexible plastics band multiple The capillary water-guiding hole of a diameter of 0.001m, the centreline space of the adjacent capillary water-guiding hole is away from for 0.0015m, in the soft modelings of PVC The lower section that material strip lower surface is located at each capillary water-guiding hole offers be connected with corresponding capillary water-guiding hole along its length respectively Water suction groove, it is described water suction groove width be 0.0003m.
- The gravity dam structure 2. mud-rock flow according to claim 1 is blocked, it is characterised in that：The nothing marked as C20 The ratio of mud of sand concrete is 0.35~0.45, and used aggregate is rubble or cobble, and particle diameter is 0.01m~0.02m.
- The gravity dam structure 3. mud-rock flow according to claim 1 or 2 is blocked, it is characterised in that：The top width of the dam body 1.5~3.0m, the upstream face of dam body is vertical surface, and the downstream face of dam body is that the gradient is 1:0.6~1:0.7 inclined-plane.
- The gravity dam structure 4. mud-rock flow according to claim 1 or 2 is blocked, it is characterised in that：The top of the dam body Overflow port is offered along covalency, the transverse shape of the overflow port is rectangle, trapezoidal or triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610581441.4A CN106049373B (en) | 2016-07-22 | 2016-07-22 | Mud-rock flow is blocked gravity dam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610581441.4A CN106049373B (en) | 2016-07-22 | 2016-07-22 | Mud-rock flow is blocked gravity dam structure |
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| CN106049373A CN106049373A (en) | 2016-10-26 |
| CN106049373B true CN106049373B (en) | 2018-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610581441.4A Active CN106049373B (en) | 2016-07-22 | 2016-07-22 | Mud-rock flow is blocked gravity dam structure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004882A (en) * | 2019-04-19 | 2019-07-12 | 西南交通大学 | The dissipation of mud-rock flow multistage is blocked structure |
| CN110485375A (en) * | 2019-07-25 | 2019-11-22 | 黄河勘测规划设计研究院有限公司 | Antiseepage drainage exhaust structure suitable for Wall in Plain Reservoir library basin |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH1161780A (en) * | 1997-08-25 | 1999-03-05 | Taisei Corp | Structure of groin dam |
| CN100402756C (en) * | 2004-01-18 | 2008-07-16 | 刘平 | Live net mud-stopping dam |
| CN104412749A (en) * | 2013-08-23 | 2015-03-18 | 山水园林股份有限公司 | Process for improving heavily salinized soil in saline-alkali wasteland by using capillary pervious drain belt |
| CN205035768U (en) * | 2015-06-10 | 2016-02-17 | 北京华石纳固科技有限公司 | Enrockment concrete permeable dike |
| CN204898614U (en) * | 2015-07-02 | 2015-12-23 | 中国电建集团成都勘测设计研究院有限公司 | A flow blocking dam for protection of mud -rock flow river course |
| CN205822140U (en) * | 2016-07-22 | 2016-12-21 | 黄河勘测规划设计有限公司 | Mud-rock flow is blocked gravity dam structure |
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Address after: 450003 Jinshui Road 109, Zhengzhou City, Henan Province Patentee after: Yellow River Survey Planning and Design Research Institute Co., Ltd. Address before: 450003 Jinshui Road 109, Zhengzhou City, Henan Province Patentee before: Yellow River Engineering Consulting Co., Ltd. |
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