CN107503327A - Aileron type blocking dam - Google Patents
Aileron type blocking dam Download PDFInfo
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- CN107503327A CN107503327A CN201710850163.2A CN201710850163A CN107503327A CN 107503327 A CN107503327 A CN 107503327A CN 201710850163 A CN201710850163 A CN 201710850163A CN 107503327 A CN107503327 A CN 107503327A
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- dam
- key
- type blocking
- overfall
- wing
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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
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- General Engineering & Computer Science (AREA)
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The present invention relates to debris flow technical field, and in particular to a kind of aileron type blocking dam；Including key dam and the wing dam being arranged at left and right sides of key dam, the dam body of the key dam is provided with overfall, and the wing dam includes three sections of dam bodys that height of dam successively decreases successively, and key dam and the wing dam upstream batter ratio is respectively 1:0.8 and 1:0.6, downstream slope ratio is 1:0.2；3 excretion water holes are set at the dam body overfall of the key dam, arrange that the slope of the spilled water hole 3 is than 1 into triangle disposition:0.1；Some reinforcing bars arranged along dam body longitudinal axis are additionally added in the key dam, the land side at the key dam overfall both ends respectively sets one of knee wall, the land side on the two flanks dam respectively sets twice knee wall, and the knee wall embedded depth of foundation is consistent with dam body foundation buried depth；The shortcomings that instant invention overcomes gravity type blocking dam to dam site geological conditions and higher dam abutment Rock And Soil intensity requirement, the shearing strength of dam structure is high, and impact resistance is stronger, there is preferably deceleration, energy dissipating effect to macrosolifluction.
Description
Technical field
The present invention relates to debris flow technical field, and in particular to a kind of aileron type blocking dam.
Background technology
After Wenchuan " 5.12 " earthquake, In Southwest China mud-rock flow mountain region disaster takes place frequently, to national economy and people's people's livelihood
Life property brings heavy losses.At present In Southwest China face macrosolifluction disaster increase, middle-size and small-size mud-rock flow frequently
Present situation.In the prevention and cure project of mud-rock flow, blocking dam is a kind of using more extensive measure.Blocking dam is built to be intended to retain mud
Stone, ditch bed datum plane of erosion is raised, back-silt and slow down local ditch bed longitudinal slope, to obtain firm ditch bank, stable landslide, control is washed away,
Prevent ditch bed material starting and other effects, you can reduce solid matter supply or separate water and soil, so as to reach suppression mud-rock flow
The purpose of being formed or reducing debris flow occurrence frequency and scale.Wherein gravity type blocking dam is a kind of main Types, and gravity type is blocked
Dam construction technology is simpler, and rich experience is have accumulated in engineering practice.The deficiency for structure of being blocked for improvement routine,
Scientific worker proposes some new mud-rock flows and blocked structure, such as hingeless type arch dam, permeable arch dam, lattice guest's dam, nothing
Hinge type arch dam is mainly used in narrow cheuch, can improve the working environment of dam body, reduces construction costs；Permeable arch dam is single
Bent circular arch dam, be advantageous to play the characteristics of dam body materialses compression strength is high, tensile strength is low, but to dam abutment Rock And Soil intensity
It is it is required that higher；Lattice guest dam is a kind of flexible structure relative to gravity dam, good integrity, can be adjusted by itself to adapt to become
Shape, but build typically small in the upstream of multistage blocking dam, storage capacity more.Although above-mentioned blocking dam can play the work of debris retaining drainage
With, but the blocking dam of above-mentioned classification is built, including traditional gravity type blocking dam is built, on the one hand require that the exit or entrance of a clitch has typical case
Cucurbit bealock orographic condition；On the other hand for drainage area is big, the debris flow control works more than solid material resource, build this kind of
Not only quantity of masonry is big for blocking dam, and requires the Rock And Soil of high intensity as dam abutment.Under special geological conditions, this is just limited
The execution conditions of mud-rock flow blocking dam.
Gravity type blocking dam is typically arranged using the linear pattern perpendicular to primary fluid flow line direction.In order to resist mud-rock flow pair
Active force caused by dam body, and meet the requirement such as structure monolithic stability and antiskid, antidumping by self gravitation, its work of constructing
Skill is simpler, and rich experience is have accumulated in engineering practice, is widely used among the prevention and cure project of mud-rock flow.But again
Power formula blocking dam requires higher to dam site geological conditions, it is desirable to has typical cucurbit bealock orographic condition, Er Qieqi at dam site
The raceway groove longitudinal slopes that are built in steeper more, the narrow location of cheuch, needs the width on strict dam（Axially top length）High ratio.If in special geologic condition
Under build dam there will be certain danger and take time and effort.
The content of the invention
The present invention is higher to dam site geological conditions and dam abutment Rock And Soil intensity requirement to solve Conventional gravity formula blocking dam
A kind of technical problem, there is provided aileron type blocking dam.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of aileron type blocking dam, the aileron
Type blocking dam includes key dam and the wing dam for being arranged on the key dam left and right sides and upstream bending, and the dam body of the key dam is provided with overflow
Mouthful, the wing dam includes three sections of dam bodys that the height of dam that sets successively decreases successively on from key dam to both sides bearing of trend, the key dam and
Wing dam upstream batter ratio respectively 1:0.8 and 1:0.6, downstream slope ratio is 1:0.2；3 are set at the dam body overfall of the key dam
Water hole is drained, arranges that the slope of the spilled water hole is than 1 into triangle disposition:0.1；Some are additionally added in the key dam to indulge along dam body
The reinforcing bar arranged to axis, the both ends of the reinforcing bar often hold the length beyond dam main body to be not less than 5m, the key dam overfall
The land side at both ends respectively sets one of knee wall, and the land side on the two flanks dam respectively sets twice knee wall, the knee wall
Embedded depth of foundation is consistent with dam body foundation buried depth, and is not less than 2m.
Described aileron type blocking dam, protection cone is set at the dam abutment of aileron type blocking dam, the protection cone
Buried depth is consistent with the buried depth of dam body, protects the radius at the cone bottom of cone to be not less than 5.0m, cone slope ratio is 1：0.75；Dam abutment both ends
Enter underground layer and be not less than 2.0m, the dam abutment above soil body presses 1：The processing of 1 slope.
Generally in investigation debris flow gully regional geological environment condition.（Including topography and geomorphology, formation lithology, hydrogeology, people
Class engineering activity etc..）；Find out debris flow formation condition.（Including mud-rock flow channel conditions, material resource condition（Material resource distribution characteristics,
Material resource total amount and participation debris flow amount statistics）, water condition.）Count debris flow characteristic value.（Including mud-rock flow fluid weight
Degree, debris flow and landslips, a mud-rock flow excessively stream total amount, a mud-rock flow solid are gone out thing, debris flow velocity, mud-rock flow and integrally rushed
The calculating of the indexs such as power is hit, finally mud-rock flow development trend is predicted）, on the basis of above-mentioned, in view of gravity type is blocked
The characteristic on dam, if investigated debris flow gully is without being adapted to build the orographic condition of linear pattern gravity dam and build gravity dam in the presence of one
Fixed risk, it can be administered using aileron type blocking dam.
Key dam and wing dam upstream batter ratio are respectively 1:0.8 and 1:0.6；Such design of slope ratio, it can effectively improve dam body
Ess-strain, and resist the ability in crack.The both sides and wing dam and the slope ratio on wing dam that upstream bend avoid linear pattern gravity
On the other hand formula blocking dam greatly reduces quantity of masonry, saved because of length-width ratio excessive the problem of causing structural shear strength low
Construction cost and time.Both sides and impulsive force, water pressure, deposit pressure suffered by mud-rock flow are also led in the wing dam upstream bent
To key dam, internal force suffered by wing dam and dam abutment is reduced, shearing strength is high, and impact resistance is stronger, improves the steady of dam structure
It is qualitative.3 excretion water holes, arrange that the slope of spilled water hole is than 1 into triangle disposition:0.1, such design can quickly sluice, to large-scale mud
Rock glacier has preferably deceleration, energy dissipating effect.Because dam longitudinal axis is longer, and there is turning, dam body is higher, to strengthen its stability
And amount of deflection, totally 6 knee wall is set, and on the one hand knee wall can make dam body meet face stress distribution head-on more uniform, improve material
Utilization rate；Another aspect supporting construction can effectively reduce concrete dam body and move displacement, so as to improve the rigidity of structure.
Compared with prior art the invention has the advantages that：
1st, it is higher to dam site geological conditions and dam abutment Rock And Soil intensity requirement to overcome gravity type blocking dam for aileron type blocking dam
Shortcoming.
2nd, aileron type blocking dam effectively reduces the volume of dam body, saves material and duration.
3rd, the shearing strength of aileron type blocking dam dam structure is high, and impact resistance is stronger.
4th, wing dam mainly plays constraint and guide functions, and impulsive force, water pressure, deposit pressure suffered by mud-rock flow are oriented into master
Dam, reduce wing dam and dam abutment suffered by internal force, improve the stability of dam structure.
5th, aileron type blocking dam especially has preferably deceleration, energy dissipating effect to macrosolifluction.
Brief description of the drawings
Fig. 1 is aileron type blocking dam top view.
Fig. 2 is aileron type blocking dam front view.
Fig. 3 is Fig. 2 AA sectional drawings.
Fig. 4 is Fig. 2 BB sectional drawings.
Fig. 5 is Fig. 2 CC sectional drawings.
Fig. 6 is Fig. 2 DD sectional drawings.
Marked in figure as follows：
1- key dams, 2- knee walls, 3- spilled water holes, 4- protection cones, 5- wings dam.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
As depicted in figs. 1 and 2, a kind of aileron type blocking dam, including key dam 1 and it is arranged on the left and right sides of key dam 1 and upstream curved
The wing dam 5 of folding, the dam body of the key dam 1 are provided with overfall, and the wing dam 5 includes setting on from key dam 1 to both sides bearing of trend
Three sections of dam bodys successively decreasing successively of height of dam, the upstream batter ratio of key dam 1 and wing dam 5 is respectively 1:0.8 and 1:0.6, downstream slope ratio
It is 1:0.2；3 excretion water holes 3 are set at the dam body overfall of the key dam 1, arranged into triangle disposition, the spilled water hole 3
Slope is than 1:0.1；Be additionally added in the key dam 1 some along dam body longitudinal axis arrange reinforcing bars, the trend of the reinforcing bar with
The trend of mud-rock flow is vertical, and the both ends of the reinforcing bar often hold the length beyond dam main body to be not less than 5m, the overfall of key dam 1
The land side at both ends respectively sets one of knee wall 2, and the land side on the two flanks dam 5 respectively sets twice knee wall 2, the support
The embedded depth of foundation of wall 2 is consistent with dam body foundation buried depth, and is not less than 2m.
Described aileron type blocking dam, protection cone 4, the protection cone 4 are set at the dam abutment of aileron type blocking dam
Buried depth it is consistent with the buried depth of dam body, protect the radius at the cone bottom of cone 4 to be not less than 5.0m, cone slope ratio is 1：0.75；Dam abutment
Both ends enter underground layer and are not less than 2.0m, and the dam abutment above soil body presses 1：The processing of 1 slope, and carry out gib measure.Protect cone 4
Design can strengthen the fastness of dam abutment and destroyed by rush of water to prevent dam abutment.
The dam foundation and dam body of the aileron type blocking dam are built up using C25 cyclopean concretes, the dam body back of the body at overfall
Water side 50cm width and overfall excessively stream part surface 50cm thickness do Wear-resistant Treatment, i.e. surface uses C30 microlith coagulations
Soil is built up.
As shown in Figure 5 and Figure 6, the height of dam of the CC section parts of wing dam 5 is more than the height of dam of DD section parts.
Claims (3)
- A kind of 1. aileron type blocking dam, it is characterised in that：The aileron type blocking dam includes key dam（1）Be arranged on key dam（1） The left and right sides and the wing dam upstream bent（5）, the key dam（1）Dam body be provided with overfall, the wing dam（5）Including by leading Dam（1）Three sections of dam bodys that the height of dam set on to both sides bearing of trend successively decreases successively, the key dam（1）With wing dam（5）Upstream batter Than being respectively 1:0.8 and 1:0.6, downstream slope ratio is 1:0.2；The key dam（1）Dam body overfall at set 3 excretion water holes （3）, arranged into triangle disposition, the spilled water hole（3）Slope than 1:0.1；The key dam（1）In be additionally added some and indulged along dam body The reinforcing bar arranged to axis, the both ends of the reinforcing bar often hold the length beyond dam main body to be not less than 5m, the key dam（1）Overflow The land side at mouth both ends respectively sets one of knee wall（2）, the two flanks dam（5）Land side twice knee wall is respectively set（2）, The knee wall（2）Embedded depth of foundation is consistent with dam body foundation buried depth, and is not less than 2m.
- 2. aileron type blocking dam according to claim 1, it is characterised in that：Set at the dam abutment of aileron type blocking dam anti- Protect cone（4）, the protection cone（4）Buried depth it is consistent with the buried depth of dam body, protect cone（4）The radius at cone bottom be not less than 5.0m, cone slope ratio are 1：0.75；Dam abutment both ends enter underground layer and are not less than 2.0m, and the dam abutment above soil body presses 1：The processing of 1 slope.
- 3. according to the aileron type blocking dam described in claim 1 or 2, it is characterised in that：The dam foundation and dam body of aileron type blocking dam are equal Built up using C25 cyclopean concretes, dam body backwater side 50cm width and overfall excessively stream part surface 50cm at overfall Thickness do Wear-resistant Treatment, i.e. surface is built up using C30 pea gravel concretens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710850163.2A CN107503327B (en) | 2017-09-20 | 2017-09-20 | Aileron type blocking dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710850163.2A CN107503327B (en) | 2017-09-20 | 2017-09-20 | Aileron type blocking dam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107503327A true CN107503327A (en) | 2017-12-22 |
| CN107503327B CN107503327B (en) | 2019-04-30 |
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ID=60697886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710850163.2A Expired - Fee Related CN107503327B (en) | 2017-09-20 | 2017-09-20 | Aileron type blocking dam |
Country Status (1)
| Country | Link |
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| CN (1) | CN107503327B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360465A (en) * | 2018-01-14 | 2018-08-03 | 浙江大学 | A kind of wedge shape mud-rock flow shunting is blocked device and its construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000290969A (en) * | 1999-04-07 | 2000-10-17 | Yachiyo Engineering Co Ltd | Countermeasure structure for debris flow and construction method therefor |
| CN203755243U (en) * | 2014-03-19 | 2014-08-06 | 长沙有色冶金设计研究院有限公司 | Protection structure of bridgehead conical slopes |
| CN205171469U (en) * | 2015-09-07 | 2016-04-20 | 四川省华地建设工程有限责任公司 | Mud -rock flow flow blocking dam scour protection dissipation structure |
| CN105926544A (en) * | 2016-06-24 | 2016-09-07 | 中国电建集团华东勘测设计研究院有限公司 | Economical debris flow blocking dam structure and construction method thereof |
-
2017
- 2017-09-20 CN CN201710850163.2A patent/CN107503327B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000290969A (en) * | 1999-04-07 | 2000-10-17 | Yachiyo Engineering Co Ltd | Countermeasure structure for debris flow and construction method therefor |
| CN203755243U (en) * | 2014-03-19 | 2014-08-06 | 长沙有色冶金设计研究院有限公司 | Protection structure of bridgehead conical slopes |
| CN205171469U (en) * | 2015-09-07 | 2016-04-20 | 四川省华地建设工程有限责任公司 | Mud -rock flow flow blocking dam scour protection dissipation structure |
| CN105926544A (en) * | 2016-06-24 | 2016-09-07 | 中国电建集团华东勘测设计研究院有限公司 | Economical debris flow blocking dam structure and construction method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 余政: ""冲击荷载作用下泥石流拦挡坝变形破坏机制"", 《中国优秀硕士学位论文全文数据库 基础科学辑》 * |
| 王秀丽等: ""基于ANSYS/LS-DYNA的新型带支撑泥石流拦挡坝抗冲击性能研究"", 《防灾减灾工程学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360465A (en) * | 2018-01-14 | 2018-08-03 | 浙江大学 | A kind of wedge shape mud-rock flow shunting is blocked device and its construction method |
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| CN107503327B (en) | 2019-04-30 |
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Effective date of registration: 20200930 Address after: 030000 160 Heping South Road, wanBerlin District, Taiyuan, Shanxi Patentee after: Shanxi Geological Engineering Survey Institute Address before: 030024 West Street, Taiyuan, Shanxi, No. 79, No. Patentee before: Taiyuan University of Technology |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190430 Termination date: 20210920 |
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