CN107503327B - Aileron type blocking dam - Google Patents
Aileron type blocking dam Download PDFInfo
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- CN107503327B CN107503327B CN201710850163.2A CN201710850163A CN107503327B CN 107503327 B CN107503327 B CN 107503327B CN 201710850163 A CN201710850163 A CN 201710850163A CN 107503327 B CN107503327 B CN 107503327B
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- dam
- key
- type blocking
- overflow port
- 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
Abstract
The present invention relates to debris flow technical fields, 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 equipped with overflow port, and the wing dam includes three sections of dam bodys that height of dam successively successively decreases, the key dam and wing dam upstream batter than being respectively 1:0.8 and 1:0.6, and downstream slope ratio is 1:0.2；3 excretion water hole of setting, is arranged, the slope ratio 1:0.1 of the drain hole 3 at triangle disposition at the dam body overflow port of the key dam；Several reinforcing bars along the arrangement of dam body longitudinal axis are additionally added in the key dam, one of knee wall is respectively arranged in the land side at key dam overflow port both ends, twice knee wall is respectively arranged in the land side on two flank dam, and the knee wall embedded depth of foundation is consistent with dam body foundation buried depth；The present invention overcomes gravity type blocking dams to dam site geological conditions and the higher disadvantage of dam abutment Rock And Soil intensity requirement, and the shearing strength of dam structure is high, and impact resistance is stronger, has preferably deceleration, energy dissipating to act on macrosolifluction.
Description
Technical field
The present invention relates to debris flow technical fields, and in particular to a kind of aileron type blocking dam.
Background technique
After Wenchuan " 5.12 " earthquake, In Southwest China mud-rock flow mountain region disaster takes place frequently, raw to national economy and the people
Life property brings heavy losses.At present In Southwest China face macrosolifluction disaster increase, middle-size and small-size mud-rock flow it is frequent
Status.In the prevention and cure project of mud-rock flow, blocking dam is a kind of more extensive measure of application.Blocking dam is built to be intended to retain mud
Stone raises ditch bed datum plane of erosion, back-silts and slows down local ditch bed longitudinal slope, to obtain firm ditch bank, stablizes landslide, and control is washed away,
Ditch bed substance starting and other effects is prevented, solid matter supply can be reduced or separate water and soil, to reach inhibition 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 has accumulated experience abundant in engineering practice.The deficiency for structure of routinely blocking for improvement,
Scientific worker proposes some novel mud-rock flows and blocks structure, such as hingeless type arch dam, permeable arch dam, lattice guest's shilong dam, nothing
Hinge type arch dam is mainly used in narrow cheuch, can improve the working environment of dam body, reduces project cost；Permeable arch dam is single
Bent circle arch dam, is conducive to play the feature that dam body materials compression strength is high, tensile strength is low, but to dam abutment Rock And Soil intensity
It is more demanding；Lattice guest shilong dam is a kind of flexible structure relative to gravity dam, and good integrity can be adjusted by itself to adapt to become
Shape, but build in the upstream of multistage blocking dam, storage capacity is typically small. 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 building traditional gravity type blocking dam, on the one hand require the exit or entrance of a clitch that there is typical case
Cucurbit bealock orographic condition；On the other hand debris flow control works big for drainage area, more than solid material resource, build this kind of
Not only quantity of masonry is big for blocking dam, but also requires high-intensitive Rock And Soil 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 generally arranged using the linear type perpendicular to primary fluid flow line direction.In order to resist mud-rock flow pair
The active force that dam body generates, and meet the requirement such as structure monolithic stability and antiskid, antidumping by self gravity, work of constructing
Skill is simpler, and has accumulated experience abundant in engineering practice, is widely used in the prevention and cure project of mud-rock flow.But again
Power formula blocking dam is more demanding to dam site geological conditions, it is desirable that has typical cucurbit bealock orographic condition, Er Qieqi at dam site
It is steeper to be built in channel longitudinal slope, the narrow location of cheuch needs width (axial top length) the high ratio on stringent dam more.If in special geologic condition
Under build dam certain risk will be present and take time and effort.
Summary of the invention
The present invention is that solution traditional gravity type blocking dam is higher to dam site geological conditions and dam abutment Rock And Soil intensity requirement
Technical problem provides a kind of aileron type blocking dam.
In order to solve the above technical problems, the technical scheme adopted by the invention is as follows: a kind of aileron type blocking dam, the aileron
Type blocking dam includes key dam and the wing dam that is arranged at left and right sides of key dam and upstream bends, and the dam body of the key dam is equipped with overflow
Mouthful, the wing dam includes the three sections of dam bodys successively to be successively decreased from the height of dam that key dam is arranged on the extending direction of two sides, the key dam and
For wing dam upstream batter than being respectively 1:0.8 and 1:0.6, downstream slope ratio is 1:0.2；3 are arranged at the dam body overflow port of the key dam
Water hole is drained, is arranged at triangle disposition, the slope ratio 1:0.1 of the drain hole；Several are additionally added in the key dam to indulge along dam body
The reinforcing bar arranged to axis, the every end in the both ends of the reinforcing bar exceed the length of dam main body not less than 5m, the key dam overflow port
One of knee wall is respectively arranged in the land side at both ends, and twice knee wall, the knee wall is respectively arranged in the land side on two flank dam
Embedded depth of foundation is consistent with dam body foundation buried depth, and is not less than 2m.
The aileron type blocking dam, the setting protection cone 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 not less than 5.0m, cone slope ratio is 1:0.75；Dam abutment both ends
It is not less than 2.0m into soil layer, the above soil body of dam abutment is handled by 1:1 slope.
Usually 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 participate in debris flow amount statistics), water condition.) statistics debris flow characteristic value.(including mud-rock flow fluid weight
Degree, debris flow and landslips, a mud-rock flow overcurrent total amount, a mud-rock flow solid are gone out object, debris flow velocity, mud-rock flow and are 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, block in view of gravity type
The characteristic on dam, if investigated debris flow gully is without being suitble to the orographic condition for building linear type gravity dam and build gravity dam there are one
Fixed risk can be used aileron type blocking dam and be administered.
Key dam and wing dam upstream batter are than being respectively 1:0.8 and 1:0.6；Such design of slope ratio can effectively improve dam body
Ess-strain, and resist the ability in crack.The slope ratio on two sides and the wing dam upstream bent and wing dam avoids linear type gravity
The problem that formula blocking dam causes structural shear strength low because length-width ratio is excessive, on the other hand greatly reduces quantity of masonry, saves
Construction cost and time.Two sides and impact force, water pressure suffered by mud-rock flow, deposit pressure 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, are arranged, the slope ratio 1:0.1 of drain hole, such design can quickly sluice, to large-scale mud at triangle disposition
Rock glacier has preferably deceleration, energy dissipating effect.Since dam longitudinal axis is longer, and there is turning, dam body is higher, to reinforce its stability
And amount of deflection, setting totally 6 knee wall, on the one hand knee wall can make dam body meet face stress distribution head-on more uniform, improve material
Utilization rate；Another aspect support construction can effectively reduce the dynamic displacement of concrete dam body, to improve the rigidity of structure.
Compared with prior art the invention has the following advantages:
1, aileron type blocking dam overcome gravity type blocking dam to dam site geological conditions and dam abutment Rock And Soil intensity requirement compared with
High disadvantage.
2, aileron type blocking dam effectively reduces the volume of dam body, saves material and duration.
3, the shearing strength of aileron type blocking dam dam structure is high, and impact resistance is stronger.
4, wing dam mainly plays constraint and guide functions, by impact force, water pressure suffered by mud-rock flow, deposit pressure guiding master
Dam reduces internal force suffered by wing dam and dam abutment, improves the stability of dam structure.
5, aileron type blocking dam especially has preferably deceleration, energy dissipating to act on macrosolifluction.
Detailed description of the invention
Fig. 1 is aileron type blocking dam top view.
Fig. 2 is aileron type blocking dam front view.
Fig. 3 is the AA cross-section diagram of Fig. 2.
Fig. 4 is the BB cross-section diagram of Fig. 2.
Fig. 5 is the CC cross-section diagram of Fig. 2.
Fig. 6 is the DD cross-section diagram of Fig. 2.
It is marked in figure as follows:
1- key dam, 2- knee wall, 3- drain hole, 4- protect cone, 5- wing dam.
Specific 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 setting are in the left and right sides of key dam 1 and upwards
Swim the wing dam 5 of bending, the dam body of the key dam 1 is equipped with overflow port, the wing dam 5 include from key dam 1 on the extending direction of two sides
Three sections of dam bodys that the height of dam of setting successively successively decreases, the key dam 1 and 5 upstream batter of wing dam are than being respectively 1:0.8 and 1:0.6, backwater
Slope ratio is 1:0.2；3 excretion water hole 3 of setting, is arranged, the drain hole at triangle disposition at the dam body overflow port of the key dam 1
3 slope ratio 1:0.1；Several reinforcing bars along the arrangement of dam body longitudinal axis, the trend of the reinforcing bar are additionally added in the key dam 1
Vertical with the trend of mud-rock flow, the every end in the both ends of the reinforcing bar exceeds the length of dam main body not less than 5m, 1 overflow of key dam
One of knee wall 2 is respectively arranged in the land side at mouth both ends, and twice knee wall 2, the branch is respectively arranged in the land side on two flank dam 5
2 embedded depth of foundation of buttress is consistent with dam body foundation buried depth, and is not less than 2m.
The aileron type blocking dam, setting protection cone 4, the protection cone 4 at the dam abutment of aileron type blocking dam
Buried depth it is consistent with the buried depth of dam body, protection cone 4 cone bottom radius be not less than 5.0m, cone slope ratio be 1:0.75；Dam abutment
Both ends enter soil layer not less than 2.0m, and the above soil body of dam abutment is handled by 1:1 slope, and carries out gib measure.Protect cone 4
Design the fastness of dam abutment can be enhanced destroy by rush of water to prevent dam abutment.
The dam foundation and dam body of the aileron type blocking dam are all made of C25 cyclopean concrete and build up, the dam body back at overflow port
The thickness of water side 50cm width and overflow port excessively stream part surface 50cm do Wear-resistant Treatment, i.e. surface uses C30 microlith coagulation
Soil is built up.
As shown in Figure 5 and Figure 6, the height of dam of 5 CC section part of wing dam is greater than the height of dam of DD section part.
Claims (3)
1. a kind of aileron type blocking dam, it is characterised in that: the aileron type blocking dam includes key dam (1) and is arranged in key dam (1)
The dam body on the left and right sides and the wing dam (5) upstream bent, the key dam (1) is equipped with overflow port, and the wing dam (5) includes by leading
Three sections of dam bodys that the height of dam that dam (1) is arranged on the extending direction of two sides successively successively decreases, key dam (1) He Yiba (5) upstream batter
Than being respectively 1:0.8 and 1:0.6, downstream slope ratio is 1:0.2；3 excretion water hole of setting at the dam body overflow port of the key dam (1)
(3), it is arranged at triangle disposition, the slope ratio 1:0.1 of the drain hole (3)；Several are additionally added in the key dam (1) to indulge along dam body
The reinforcing bar arranged to axis, the every end in the both ends of the reinforcing bar exceed the length of dam main body not less than 5m, key dam (1) overflow
The land side at mouth both ends is respectively arranged one of knee wall (2), and twice knee wall (2) are respectively arranged in the land side on two flank dam (5),
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: be arranged at the dam abutment of aileron type blocking dam anti-
It protects cone (4), the buried depth of protection cone (4) is consistent with the buried depth of dam body, and the radius at the cone bottom of cone (4) is protected to be not less than
5.0m, cone slope ratio are 1:0.75；Dam abutment both ends enter soil layer not less than 2.0m, and the above soil body of dam abutment is handled by 1:1 slope.
3. according to aileron type blocking dam of any of claims 1 or 2, it is characterised in that: the dam foundation and dam body of aileron type blocking dam are equal
It is built up using C25 cyclopean concrete, dam body backwater side 50cm width and overflow port excessively stream part surface 50cm at overflow port
Thickness do Wear-resistant Treatment, i.e., surface is built up using C30 pea gravel concreten.
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 CN107503327A (en) | 2017-12-22 |
| CN107503327B true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360465B (en) * | 2018-01-14 | 2023-07-25 | 浙江大学 | Wedge-shaped debris flow diversion blocking device and construction method thereof |
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 |
|---|
| "冲击荷载作用下泥石流拦挡坝变形破坏机制";余政;《中国优秀硕士学位论文全文数据库 基础科学辑》;20170315;第56-58页 * |
| "基于ANSYS/LS-DYNA的新型带支撑泥石流拦挡坝抗冲击性能研究";王秀丽等;《防灾减灾工程学报》;20141215;第34卷(第6期);第664页第2段及第670页 * |
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| CN107503327A (en) | 2017-12-22 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190430 Termination date: 20210920 |