CN208701620U - It is a kind of for blocking the dam body of mountain channel mountain torrents, mud-rock flow - Google Patents
It is a kind of for blocking the dam body of mountain channel mountain torrents, mud-rock flow Download PDFInfo
- Publication number
- CN208701620U CN208701620U CN201820986244.5U CN201820986244U CN208701620U CN 208701620 U CN208701620 U CN 208701620U CN 201820986244 U CN201820986244 U CN 201820986244U CN 208701620 U CN208701620 U CN 208701620U
- Authority
- CN
- China
- Prior art keywords
- arch
- dam body
- barricade
- dam
- pier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Revetment (AREA)
Abstract
The utility model discloses a kind of for blocking the dam body of mountain channel mountain torrents, mud-rock flow, and dam body includes at least one fabricated precast prestressed arch, and arch ring is in the arch for being convex to upstream in the plane, and arch springing is assemblied between two lateral retaining wall brackets.The precast prestressed arch is that precast prestressed concrete encircles.The barricade includes abutment pier barricade and middle pier barricade, and abutment pier barricade and middle pier retaining wall foundation are constructed using diaphram wall mode, provides the skid resistance of dam body.Dam body upstream interlaced arrangement has armored concrete anticollision to block the stone pier.The dam body downstream is equipped with energy dissipating end sill, and cushion pool is formed between precast prestressed arch and energy dissipating end sill, and energy dissipating end sill downstream is laid with erosion control apron.Dam body is low to ground fundamental importance, and stability is good, is suitable for various topographic and geologic conditions.Prestressing force arch is precast concrete domes, can shift to an earlier date and manufacture in factory, and scene directly lifts, and convenient and quick construction, short time limit facilitate maintenance maintenance；And construction diversion is not necessarily to when such dam construction, manpower and material resources are greatly saved；Because its figure is smaller, structure is simple, and project cost is lower.
Description
Technical field
The utility model relates to a kind of hydraulic structure structures, especially a kind of for blocking mountain channel mountain torrents, mudstone
The dam body of stream.
Background technique
Mountain torrents, mud-rock flow are the common natural calamities in mountain area, and have it is sudden, and China's national territorial area there are about three/
Second is that alpine terrain, therefore mud-rock flow, in China, especially west area distribution is quite extensive, and disaster is than more serious.River is attached
The facilities such as close resident's security of the lives and property and cities and towns, factories and miness, road and bridge can all be destroyed by mud-rock flow, caused by economy damage
Dephasing is when huge.The development of disaster directly threatens in basin and catchment people life property safety, seriously restricts and works as
The sound development of ground social economy.The forecast means of mud-stone flow disaster are still immature, therefore, to ensure personal and property safety,
Effective safe prevention measure should be taken, the harmfulness of mud-stone flow disaster is minimized.
The block dam body of mud-rock flow of tradition can be divided into gravity dam and arch dam two major classes type.Gravity dam according to filling material not
Together, and earth dam, dry-laid masonry dam, stone masonry dam, native stone mixed dam, iron wire shilong dam can be divided into etc., there are also block mudstone stream part
The through mode gravity dam of gear, such dam type blocks thick row carefully, such as crib dam, slit dam dam type.In addition there are also steel cable dams flexible.
The selection of dam type is considered as cheuch type, topographic and geologic condition, the scale of mud-rock flow and importance of downstream protected object etc., knot
Close the applicable elements of different dam types, advantage and disadvantage carry out reasonable selection.
Traditional check dam more or less has some disadvantages in engineering practice.
(1) gravity dam: thrust and impact force to resist mud-rock flow generation from the frictional force generated on ground is focused on.It is excellent
Point is: structure is simple, easy for construction, gathers materials on the spot, and durability is strong.The disadvantage is that figure is heavy, project amount is big, and to the ground of ground
Matter condition is more demanding, and construction needs construction diversion, and operational procedure is complex.
(2) arch dam: arch dam can be built at the dam site that cheuch is narrow, two sides basement rock is firm.Arch dam is in be convex in the plane
The arch of trip, arch ring compression chord effect, can make full use of building stones and the very high compression strength of concrete, have labor and material saving etc.
Feature.But arch dam is more demanding to dam site geological conditions, and design and construction are complicated difficult.
(3) crib dam and slit dam: crib dam have good water penetration, can selective Littoral Barrier, also have
The advantages that scouring before dam is small, is easy to dredging behind dam.Its main body can be assembled at the scene, and speed of application is fast.The disadvantage is that: it is not suitable for
Retain slumped mass and periodicity viscous mud-flow and fine grain mud-rock flow；Easily by swiftly flowing mud-rock flow faucet and boulder
It breaks, needs steel more, it is desirable that have preferable execution conditions and skilled artisan.
(4) steel cable dam: cable type check dam is to work out networking using cable wire, then be fixed on ditch bed and constitute.It is this
Structure has good flexibility, can eliminate the huge impact force of mud-rock flow, and mud-rock flow is promoted to deposit in dam upstream.This dam structure letter
It is single, it is easy for construction, but durability is poor, at present using less.
(5) steel-wire stone dam: dam body is piled up by iron wire gabion, and iron wire gabion is box.This dam is suitable for small-sized
Waste small stream.Its advantages are to build simply, and construction is rapid, low cost.The disadvantage is that validity period is short, the globality poor on dam.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of reduction cost, guarantee construction quality for blocking
Hinder the dam body of mountain channel mountain torrents, mud-rock flow.
To solve the above-mentioned problems, the technical scheme adopted by the utility model is it is a kind of for blocking mountain channel mountain
The dam body of flood, mud-rock flow, dam body includes at least one fabricated precast prestressed arch, and arch ring is in be convex to upstream in the plane
Arch, arch springing are assemblied between two lateral retaining wall brackets.
The precast prestressed arch is that precast prestressed concrete encircles.
The barricade includes abutment pier barricade and middle pier barricade, and abutment pier barricade and middle pier retaining wall foundation use diaphram wall side
Formula construction, provides the skid resistance of dam body.
Dam body upstream interlaced arrangement has armored concrete anticollision to block the stone pier.
The dam body downstream is equipped with energy dissipating end sill, forms cushion pool, energy dissipating tail between precast prestressed arch and energy dissipating end sill
Bank downstream is laid with erosion control apron.
The utility model has the beneficial effects that dam body is low to the requirement of landform geological conditions, scheme is limited less in addressing, it is right
Reducing investment has direct help；Prefabricated and in-site installation can be shifted to an earlier date, and prestressing force can be applied, be to reduce cost, guarantee engineering
It has a clear superiority in terms of quality；It is not necessarily to construction diversion engineering when construction, can shorten the construction period and reduce construction investment.
Detailed description of the invention
Fig. 1 is the dam body overall floor plan that the utility model is used to block mountain channel mountain torrents, mud-rock flow.
Fig. 2 is the sectional view of the precast prestressed arch of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description:
As shown in Figure 1, 2, the utility model is used to block the dam body of mountain channel mountain torrents, mud-rock flow, and dam body includes at least
One fabricated precast prestressed arch, arch ring are in the arch for being convex to upstream in the plane, and arch springing is assemblied in two lateral retaining wall brackets
Between.
The precast prestressed arch is that precast prestressed concrete encircles.
The barricade includes abutment pier barricade 2 and middle pier barricade 3, and abutment pier barricade 2 and 3 basis of middle pier barricade are continuous using underground
Wall mode is constructed, and the skid resistance of dam body is provided.
Dam body upstream interlaced arrangement has armored concrete anticollision to block the stone pier 4.
The dam body downstream is equipped with energy dissipating end sill 5, forms cushion pool 6 between precast prestressed arch 1 and energy dissipating end sill 5, disappears
It can 5 downstream of end sill laying erosion control apron 7.
Specifically:
(1) according to the design length of check dam and a mud-rock flow flood peak come amount, after being really sized, in precast concrete
Component factory makes the concrete pre-stress arch for being disposed with prestress wire 8 in advance.
(2) construction two sides abutment pier barricade 2 and middle pier barricade 3, basis use diaphram wall pattern.
(3) stone pier 4 and concrete floor construction are blocked in concrete anticollision in upstream, can be poured its scene of progress according to design size
Note.Anticollision blocks the stone pier 4 to block the coarse solid matter such as boulder and drift wood in mud-rock flow, and violent mud-rock flow is made to reduce it
Impact force and destructive power.
(4) construction of the dam body water cushion pool downstream pool 6 and energy dissipating end sill 5 and erosion control apron 7.
(5) the precast concrete prestressing force arch that lifting processes.
The utility model makes the concrete pre-stress for being disposed with prestress wire in precast concrete factory in advance
Arch, prestressing force arch can assembled in situ fix, arch ring is in the arch for being convex to upstream in the plane, and arch springing is assemblied in two lateral retaining wall brackets
Between, since concrete itself has very strong compression strength, in addition prestressed application, prestressing force arch can bear huge enough
The impulsive force of mud flow, pressure is transferred to abutment pier and middle pier by arch ring, and the pressure of the two sides Zhong Dun can largely offset each other, abutment pier
Pressure be transferred to two sides massif, to provide good stress condition to dam body.Abutment pier and middle pier foundation are connected using underground
Continuous wall pattern, it is main that the skid resistance of dam body is provided, while having very great help to the overall stability of dam body.Dam body upstream arrangement has
The stone pier is blocked in armored concrete anticollision, to boulder of blocking, reduces mud-rock flow destructive power.Dam body downstream certain distance is equipped with energy dissipating
End sill forms cushion pool between arch dam and energy dissipating end sill, energy dissipating end sill downstream is laid with erosion control apron, and cushion pool and apron make jointly
For the dissipation and scouring facility in dam downstream.
The utility model can be applied to prevent mountain channel mountain torrents and mud-rock flow, and advantage includes to ground fundamental importance
Low, antiskid, stability against overturning are good, are suitable for various topographic and geologic conditions；Prestressing force arch is precast concrete domes, can be mentioned
Preceding to manufacture in factory, scene directly lifts, and convenient and quick construction, short time limit facilitate maintenance maintenance；And when such dam construction
Without construction diversion, manpower and material resources are greatly saved；Because its figure is smaller, structure is simple, therefore its project cost is relatively low.
Embodiment described above is merely to illustrate the technical idea and feature of the utility model, and its object is to make ability
Technical staff in domain, cannot be only practical to limit with the present embodiment it will be appreciated that the content of the utility model and implement accordingly
Novel the scope of the patents, i.e., same changes or modifications made by the revealed spirit of all the utility model, it is practical new still to fall in this
In the scope of the patents of type.
Claims (3)
1. a kind of for blocking the dam body of mountain channel mountain torrents, mud-rock flow, which is characterized in that dam body includes at least one assembled
Precast prestressed arch, arch ring is in the arch for being convex to upstream in the plane, and arch springing is assemblied between two lateral retaining wall brackets, on dam body
Trip interlaced arrangement has armored concrete anticollision to block the stone pier (4)；Dam body downstream be equipped with energy dissipating end sill (5), precast prestressed arch (1) and
Cushion pool (6) are formed between energy dissipating end sill (5), energy dissipating end sill (5) downstream is laid with erosion control apron (7).
2. according to claim 1 for blocking the dam body of mountain channel mountain torrents, mud-rock flow, which is characterized in that described prefabricated
Prestressing force encircles (1) as precast prestressed concrete arch.
3. according to claim 1 for blocking the dam body of mountain channel mountain torrents, mud-rock flow, which is characterized in that the barricade
Including abutment pier barricade (2) and middle pier barricade (3), abutment pier barricade (2) and middle pier barricade (3) basis are applied using diaphram wall mode
Work provides the skid resistance of dam body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820986244.5U CN208701620U (en) | 2018-06-22 | 2018-06-22 | It is a kind of for blocking the dam body of mountain channel mountain torrents, mud-rock flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820986244.5U CN208701620U (en) | 2018-06-22 | 2018-06-22 | It is a kind of for blocking the dam body of mountain channel mountain torrents, mud-rock flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208701620U true CN208701620U (en) | 2019-04-05 |
Family
ID=65937225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820986244.5U Active CN208701620U (en) | 2018-06-22 | 2018-06-22 | It is a kind of for blocking the dam body of mountain channel mountain torrents, mud-rock flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208701620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112144488A (en) * | 2020-10-27 | 2020-12-29 | 中水北方勘测设计研究有限责任公司 | Multi-curved arch water-permeable stepped energy dissipation secondary dam capable of preventing river channel undercut from being damaged |
-
2018
- 2018-06-22 CN CN201820986244.5U patent/CN208701620U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112144488A (en) * | 2020-10-27 | 2020-12-29 | 中水北方勘测设计研究有限责任公司 | Multi-curved arch water-permeable stepped energy dissipation secondary dam capable of preventing river channel undercut from being damaged |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Jansen | Dams and public safety | |
| CN202298556U (en) | Novel prevention structure for landslide converting-type debris flow | |
| CN204849680U (en) | Novel ecological shore protection system | |
| CN207633352U (en) | A kind of slope reinforcement structure for rapid rescue construction | |
| CN111270698A (en) | Protective structure for exposed diseases of bridge pile foundation in sand-mining river channel in mountainous area and construction method of protective structure | |
| CN208981282U (en) | A kind of high earthquake territory concrete face rockfill dam dam crest structure | |
| CN108547262A (en) | Dam body for blocking mountain channel mountain torrents, mud-rock flow | |
| CN204690698U (en) | A kind of debris flow dam | |
| CN208701620U (en) | It is a kind of for blocking the dam body of mountain channel mountain torrents, mud-rock flow | |
| CN107700434B (en) | Arch-shaped grid type reinforced concrete debris flow blocking dam and construction method thereof | |
| Saxena et al. | Dams: Incidents and accidents | |
| CN210946536U (en) | Protective structure of small dangerous rock falling stone | |
| CN203821306U (en) | Flexible anti-scour protection pad | |
| CN105569055B (en) | A kind of structure for preventing landslide | |
| CN104727301A (en) | Geological reinforcement device | |
| Chen et al. | Protection mechanisms, countermeasures, assessments and prospects of local scour for cross-sea bridge foundation: A review | |
| CN104963323A (en) | Scour-preventing groove for chain precast block protective surface | |
| CN212223936U (en) | A protective structure that is used for mountain area to adopt sand river course inner bridge pile foundation to expose disease | |
| CN111321705B (en) | Construction method of debris flow blocking dam | |
| CN210887090U (en) | Breakwater with energy dissipation function | |
| CN207597544U (en) | A kind of high resiliency water conservancy chute | |
| CN204728288U (en) | Chain prefabricated section mask anti-scour trench | |
| CN204199238U (en) | Mud-rock flow Composite pile-geonets device | |
| CN219992659U (en) | Ecological diversion structure of rainwater on high steep side slope of river course | |
| CN103821106A (en) | Small-scale fishing port and riverway revetment structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |