CN205171469U - Mud -rock flow flow blocking dam scour protection dissipation structure - Google Patents
Mud -rock flow flow blocking dam scour protection dissipation structure Download PDFInfo
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- CN205171469U CN205171469U CN201520688888.2U CN201520688888U CN205171469U CN 205171469 U CN205171469 U CN 205171469U CN 201520688888 U CN201520688888 U CN 201520688888U CN 205171469 U CN205171469 U CN 205171469U
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- rock flow
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Abstract
The utility model discloses a scour protection dissipation structure is formed at the scour protection dissipation structure in mud -rock flow flow blocking dam key dam low reaches by auxiliary dam, side wall, energy dissipation pond to the setting, and the scour protection energy dissipation pond that wherein sets up between auxiliary dam and key dam is main part dissipation structure, the auxiliary dam mainly by the auxiliary dam dam body, sets up the dam foundation constitution in auxiliary dam dam body below, and this dam foundation all imbeds in the stable massif with the left and right sides of auxiliary dam dam body, the energy dissipation pond comprises reinforced concrete pouring layer that sets up in the bottom and the piece stone layer of inlaying on owing it, the side wall is constituteed near the stone masonry protective wall of massif both sides between by key dam and the width of cloth dam and two auxiliary dams. The utility model provides a scour protection dissipation structure in high dam low reaches prevents to erode the dam foundation that destroys the key dam from the mud -rock flow solid matter that main dam crest troops under one's command let out, reduces flow blocking dam life, and this structure has improved its service life and has used the efficiency.
Description
Technical field
The utility model relates to the prevention and control field of natural calamity, relates to a kind of mud-rock flow blocking dam erosion control energy-dissipating structure used when preventing and treating mud-rock flow overcurrent specifically.
Background technology
Blocking dam is the engineering by the adjustment structure strick precaution mud-rock flow of blocking manually built.Often having the effect of getting instant result to control mud-stone flow disaster, is the conventional measure in Controlling Debris Flow.
In earthquake-stricken area, because debris flow gully territory exists a large amount of rickle sources, startup scale is usually comparatively large, shows as that speed is fast, inertia large, wash away the features such as sapping ability is strong, impact force is huge during the motion of mud body, and the harm that mud-rock flow causes national highway, main river, cities and towns, resident etc. is huge.Therefore, develop the blocking dam of catastrophe type mud-rock flow of effectively blocking and avoid destroying the erosion control energy-dissipating structure of the blocking dam dam foundation and downstream engineering, the harm that mud-rock flow causes can be reduced, improve downstream engineering safety and reliability, and guarantee the safety in protection object district.
Summary of the invention
In view of this, the utility model provides a kind of mud-rock flow blocking dam erosion control energy-dissipating structure, overcome above-mentioned mud-rock flow easily by the problem of blocking dam dam foundation erosion damage, better can reduce the impact that downstream engineering is subject to, improve blocking dam and downstream engineering application life and take precautions against natural calamities effect.
For solving above technical problem, the technical solution of the utility model is:
Mud-rock flow blocking dam erosion control energy-dissipating structure, comprises the key dam be horizontally installed in raceway groove, is provided with two auxiliary dams be in non-same level, is also provided with erosion control energy dissipation tank between auxiliary dam and key dam and between auxiliary dam and auxiliary dam in key dam downstream; Described auxiliary dam mainly comprises auxiliary dam dam body, is arranged on the dam foundation below auxiliary dam dam body, and the left and right sides of this dam foundation and auxiliary dam dam body all embeds in the massif of both sides, is also respectively arranged with a Vertical Settlement stitches at the dam foundation and auxiliary dam dam body both sides on the position of abutment wall.
Further, the below of the above-mentioned dam foundation is also provided with a protruding toe wall, and this toe wall is arranged on dam foundation backwater side.
Further, above-mentioned auxiliary dam, near dam foundation upstream face and Jun Youyige dam foundation excavation district, back side side, is filled with gravelly soil and forms back filled region in this excavation area.
As preferably, upstream face and the back side of described auxiliary dam dam body all become ramp shaped to arrange, and wherein the dam slope slope of upstream face is than being 1:0.7, and the dam slope slope of back side is than being 1:0.2.
As preferably, the described central upper position at auxiliary dam dam body laterally offers an overfall, and this overfall left and right sides is provided with dam abutment; Become domatic in the side that dam abutment and overfall are adjacent, and this domatic slope is than being 1:0.5; Terraced bank is provided with between dam abutment and overfall.
As preferably, be made up of steel concrete pouring layer and block stone layer at the bottom of described energy dissipation tank, be provided with steel concrete pouring layer in bottom, above steel concrete pouring layer, be also provided with the block stone layer of embedding.
In addition, described erosion control energy-dissipating structure, by the steel concrete protection-apron being arranged on bottom, is successively set on the block stone layer on protection-apron, and is arranged on the abutment wall of said structure both sides and the dam body composition of upstream and downstream.
Compared with prior art, the utility model has following beneficial effect:
(1) the utility model is provided with steel concrete protection-apron, can be good at the impact resistance improving erosion control energy-dissipating structure, on protection-apron, be also provided with down enters concrete block stone layer simultaneously, can alleviate the impact force suffered by erosion control energy-dissipating structure further;
(2) the utility model is by arranging auxiliary dam, abutment wall, form a buffering energy dissipation tank, better can reduce the impact force of mud-rock flow, and reduce the rate of flow of fluid entering downstream row guide groove, thus improve the solid bed flow conductivity of drainage groove, and the use value of drainage groove and application life;
(3) the utility model structure can eliminate most of energy when mudstone flows through dam, there is higher energy dissipating efficiency, for viscous mud-flow or diluted debris flow, and raceway groove longitudinal gradient ratio falls when being less than or equal to 8%, adjustment energy dissipation tank steel concrete or down enter concrete block stone layer thickness, better can improve erosion control energy-dissipating structure effect, make the safety in mud-rock flow not entail dangers to downstream.
Accompanying drawing explanation
Fig. 1 is side cutaway view of the present utility model.
Fig. 2 is the elevation of the utility model auxiliary dam.
Fig. 3 is the location diagram between key dam of the present utility model, auxiliary dam and erosion control energy dissipation tank.
The top view that Fig. 4 is the utility model key dam, auxiliary dam, erosion control energy dissipation tank and downstream row lead engineering installation.
On figure, Reference numeral is: 1-key dam; 2-auxiliary dam; 4-auxiliary dam dam body; 5-overfall; 6-dam abutment; 7-steel concrete pouring layer; 8-back filled region; 9-secondary toe wall; 10-dam foundation; 11-block stone layer; 12-terraced bank; 13-settlement joint; 14-main toe wall; 15-substrate.
Detailed description of the invention
Core thinking of the present utility model is, provides a kind of erosion control energy-dissipating structure, improves the fastness of blocking dam device, and then improve its application life and reliability.
In order to make those skilled in the art understand the technical solution of the utility model better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment
As shown in Fig. 1,3,4, mud-rock flow blocking dam erosion control energy-dissipating structure of the present utility model, comprise the key dam being arranged on upstream in raceway groove, be provided with two auxiliary dams be in non-same level in key dam downstream, between auxiliary dam and key dam and between auxiliary dam and auxiliary dam, be also provided with erosion control energy dissipation tank; Described auxiliary dam mainly comprises auxiliary dam dam body 4, be arranged on the dam foundation 10 below auxiliary dam dam body 4, substrate 15 is had between the auxiliary dam dam foundation and key dam, this dam foundation 10 all embeds in the massif of both sides with the left and right sides of auxiliary dam dam body 4, is also respectively arranged with a Vertical Settlement stitches 13 in the dam foundation 10 and auxiliary dam dam body 4 both sides on the position of abutment wall.This energy dissipation tank is arranged between auxiliary dam and the key dam be adjacent or auxiliary dam, improves its shock proof ability; And the height that the quantity of auxiliary dam flows through dam scale, impact force and key dam according to the mudstone of reality is determined, the impact dynamics of key dam height its mud-rock flow higher is stronger, and the quantity of required auxiliary dam and erosion control energy dissipation tank is just more.
The below of the above-mentioned dam foundation 10 is also provided with a protruding toe wall 9, and this toe wall 9 is arranged on the dam foundation 10 backwater side.Toe wall can allow auxiliary dam dam body be strengthened, and avoiding auxiliary dam to turn on one's side when being subject to impacting, further increasing the stability of auxiliary dam.
Above-mentioned substrate 15, near the dam foundation 10 upstream face and Jun Youyige dam foundation excavation district, back side side, is filled with block gravelly soil and forms back filled region 8 in this dam foundation excavation district.The build of the effect the arranging dam foundation excavation hole mainly conveniently dam foundation, to be filled up excavation area with gravelly soil thus form back filled region after constructing the dam foundation, further increases the stability of the dam foundation.
Upstream face and the back side of described auxiliary dam dam body 4 all design non-slope, and wherein the dam slope slope of upstream face is than being 1:0.7, and the dam slope slope of back side is than being 1:0.2.
As shown in Figure 2, the described central upper mud-rock flow overcurrent zone position at auxiliary dam dam body 4 laterally offers an overfall 5, and this overfall 5 left and right sides is provided with dam abutment 6; The side adjacent with overfall 5 at dam abutment 6 becomes domatic, and this domatic slope is than being 1:0.5.
As shown in Figure 2, dam abutment 6 and the side of overfall 5 are provided with terraced bank 12, and this terraced bank extends to overfall by dam abutment top, makes related personnel can be upper and lower easily.
Describedly between dam body, abutment wall, also arrange energy dissipation tank, steel concrete pouring layer 7 is arranged at bottom, is also provided with down above it and enters concrete block stone layer 11.Major and minor dam dam body can be stablized further by steel concrete pouring layer; strengthen the impact resistance of basal surface; above steel concrete pouring layer, arrange the block stone layer be made up of block stone more then can to dissipate the impact force of dam fluid; reduce the flow velocity of mud-rock flow; reaching the protection key dam dam foundation from washing away, slowing down downstream row and leading the suffered flowing pressure excessively of engineering.
Described erosion control energy-dissipating structure by energy dissipation tank, and is arranged on abutment wall and the upstream and downstream auxiliary dam composition of said structure both sides.This erosion control energy-dissipating structure can be good at cutting down the impact that mudstone flows through dam block body, and the dam foundation of key dam and auxiliary dam also can better be protected not by sapping simultaneously, improves the application life of engineering of blocking and use effect, reduces the operation expense of blocking dam.
Below be only preferred embodiment of the present utility model, it should be pointed out that above-mentioned preferred embodiment should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with claim limited range.For those skilled in the art, not departing from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. mud-rock flow blocking dam erosion control energy-dissipating structure, comprise key dam (1), it is characterized in that, be provided with two auxiliary dams (2) be in non-same level in key dam (1) downstream, between auxiliary dam (2) and key dam (1) and between auxiliary dam (2) and auxiliary dam (2), be also provided with reinforced concrete structure energy dissipation tank; Described auxiliary dam (2) mainly comprises auxiliary dam dam body (4), be arranged on the dam foundation (10) of auxiliary dam dam body (4) below, this dam foundation (10) all embeds in stable massif with the left and right sides of auxiliary dam dam body (4), is also respectively arranged with a settlement joint (13) in the dam foundation (10) and auxiliary dam dam body (4) both sides near the position of abutment wall.
2. mud-rock flow blocking dam erosion control energy-dissipating structure according to claim 1, it is characterized in that, the below of the described dam foundation (10) is also provided with a protruding toe wall (9), and this toe wall (9) is arranged on the dam foundation (10) backwater side.
3. mud-rock flow blocking dam erosion control energy-dissipating structure according to claim 2, it is characterized in that, the upstream face of the described dam foundation (10) and back side side are provided with substrate (15), substrate (15), all there being a dam foundation excavation hole near the dam foundation (10) upstream face and back side side, backfilling gravelly soil and forms back filled region (8) in this dam foundation excavation hole.
4. mud-rock flow blocking dam erosion control energy-dissipating structure according to claim 3, it is characterized in that, the described central upper position at auxiliary dam dam body (4) laterally offers an overfall (5), and this overfall (5) left and right sides is provided with dam abutment (6).
5. mud-rock flow blocking dam erosion control energy-dissipating structure according to claim 4, it is characterized in that, the upstream face of described auxiliary dam dam body (4) and all ramp-like setting of back side, wherein the dam slope slope of upstream face is than being 1:0.7, and the dam slope slope of back side is than being 1:0.2.
6. mud-rock flow blocking dam erosion control energy-dissipating structure according to claim 5, is characterized in that, between described auxiliary dam dam abutment (6) and overfall, be provided with terraced bank (12).
7. mud-rock flow blocking dam erosion control energy-dissipating structure according to claim 6, it is characterized in that, in described substrate (15) top, between main toe wall (14) and auxiliary dam (2), be provided with steel concrete pouring layer (7), between two auxiliary dams (2), be also provided with steel concrete pouring layer (7).
8. mud-rock flow blocking dam erosion control energy-dissipating structure according to claim 7, it is characterized in that, described main toe wall is positioned at the back side of key dam (1), is provided with steel concrete pouring layer (7) and embedding deficient block stone layer (11) between main toe wall (14) and auxiliary dam (2).
9. mud-rock flow blocking dam erosion control energy-dissipating structure according to claim 8, it is characterized in that, also be provided with block stone layer (11) in the top of described energy dissipation tank steel concrete pouring layer (7), block stone layer (11) bottom embeds in steel concrete pouring layer (7).
10. mud-rock flow blocking dam erosion control energy-dissipating structure according to claim 9, it is characterized in that, described erosion control energy-dissipating structure by being arranged on the steel concrete pouring layer (7) of bottom and block stone layer (11), and is arranged on the abutment wall of said structure both sides and auxiliary dam dam body (4) composition of upstream and downstream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520688888.2U CN205171469U (en) | 2015-09-07 | 2015-09-07 | Mud -rock flow flow blocking dam scour protection dissipation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520688888.2U CN205171469U (en) | 2015-09-07 | 2015-09-07 | Mud -rock flow flow blocking dam scour protection dissipation structure |
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| CN205171469U true CN205171469U (en) | 2016-04-20 |
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| CN201520688888.2U Expired - Fee Related CN205171469U (en) | 2015-09-07 | 2015-09-07 | Mud -rock flow flow blocking dam scour protection dissipation structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120640A (en) * | 2016-06-29 | 2016-11-16 | 上海朗兆公路铁路养护工程技术有限公司 | A kind of construction method preventing and treating mountain stream bridge foundation washout |
| CN107386220A (en) * | 2017-09-07 | 2017-11-24 | 中国电建集团成都勘测设计研究院有限公司 | The dam structure of breach shunting two |
| CN107503327A (en) * | 2017-09-20 | 2017-12-22 | 太原理工大学 | Aileron type blocking dam |
| CN108517890A (en) * | 2018-04-09 | 2018-09-11 | 钱继春 | A kind of high-quality and efficient toe wall construction technology |
| CN108547262A (en) * | 2018-06-22 | 2018-09-18 | 中水北方勘测设计研究有限责任公司 | Dam body for blocking mountain channel mountain torrents, mud-rock flow |
| CN109356091A (en) * | 2018-11-21 | 2019-02-19 | 中国电建集团成都勘测设计研究院有限公司 | Mountain stream river levee engineering |
| CN114855709A (en) * | 2021-07-08 | 2022-08-05 | 张征骥 | Combined dam and relieving pressure method |
-
2015
- 2015-09-07 CN CN201520688888.2U patent/CN205171469U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120640A (en) * | 2016-06-29 | 2016-11-16 | 上海朗兆公路铁路养护工程技术有限公司 | A kind of construction method preventing and treating mountain stream bridge foundation washout |
| CN107386220A (en) * | 2017-09-07 | 2017-11-24 | 中国电建集团成都勘测设计研究院有限公司 | The dam structure of breach shunting two |
| CN107503327A (en) * | 2017-09-20 | 2017-12-22 | 太原理工大学 | Aileron type blocking dam |
| CN107503327B (en) * | 2017-09-20 | 2019-04-30 | 太原理工大学 | Aileron type blocking dam |
| CN108517890A (en) * | 2018-04-09 | 2018-09-11 | 钱继春 | A kind of high-quality and efficient toe wall construction technology |
| CN108547262A (en) * | 2018-06-22 | 2018-09-18 | 中水北方勘测设计研究有限责任公司 | Dam body for blocking mountain channel mountain torrents, mud-rock flow |
| CN109356091A (en) * | 2018-11-21 | 2019-02-19 | 中国电建集团成都勘测设计研究院有限公司 | Mountain stream river levee engineering |
| CN109356091B (en) * | 2018-11-21 | 2024-01-19 | 中国电建集团成都勘测设计研究院有限公司 | Mountain stream river embankment project |
| CN114855709A (en) * | 2021-07-08 | 2022-08-05 | 张征骥 | Combined dam and relieving pressure method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20210907 |
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| CF01 | Termination of patent right due to non-payment of annual fee |