CN107288046B - Especially big high position mud-rock flow Self-resetting energy consumption is blocked structure and implementation - Google Patents
Especially big high position mud-rock flow Self-resetting energy consumption is blocked structure and implementation Download PDFInfo
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- CN107288046B CN107288046B CN201710676480.7A CN201710676480A CN107288046B CN 107288046 B CN107288046 B CN 107288046B CN 201710676480 A CN201710676480 A CN 201710676480A CN 107288046 B CN107288046 B CN 107288046B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
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Abstract
Especially big high position mud-rock flow Self-resetting energy consumption is blocked structure, and hazards control security technology area is belonged to.It is characterized in that：Include the first row armored concrete separated pile structure of mud-rock flow upstream impulse face, that is front end arc pile body (1 1) and tail portion rectangular pile body (1 2), second row reinforced concrete rectangular stake (2), armored concrete mat foundation (4)；It is connected with the first linking beam (3 1) between first row rectangular pile body (1 2)；First row rectangular pile body (1 2) is connect between massif with the second linking beam (3 2), and the second linking beam (3 2) needs 1.5 2m in build-in to massif in addition；First campshed rectangular pile body (1 2) is connect with second row rectangular pile (2) by third linking beam (3 3)；It is connected with the 4th linking beam (3 4) between second row rectangular pile body (2).The present invention improves the passive energy dissipation ability of structure, improves the service life of structure.Increase the anticollision reset capability of structure so that deformation can reset completely within the scope of 20~50cm.
Description
Technical field
It blocks engineering technology the present invention relates to a kind of mud-rock flow, especially a kind of especially big high-order mud-rock flow Self-resetting energy consumption is blocked
Structure and its implementation are kept off, hazards control security technology area is belonged to, is widely used in an especially big high position in high steep mountain area
The prevention of mud-rock flow.
Background technology
Currently, especially big high position mud-rock flow is blocked, the structure type of more mainstream is gravity dam, crib dam, stake woods in engineering
Dam, stake trammel etc., wherein stake woods and stake trammel have both the advantages of boulder impact is divided and ruled and resisted to water stone, in Gansu Zhouqu County three
It succeeds in the especially big Controlling Debris Flow engineerings such as eye Yu Gou, Luo Jia valley ditch, the peaceful literary family ditch in Sichuan, the cold wooden ditch of Baoxing application.
Since the impact force of boulder in especially big high-order mud-rock flow is huge, especially big high position mud-rock flow is blocked structure in engineering
Area of section, which generally requires, is designed to higher value, and links structure and thicker raft foundation often through adding, and forms it into entirety
The very strong fabricated structure of rigidity, this fully meets Controlling Debris Flow design requirement on mechanics.But if long-term multiple
By boulder " very stiff and demanding " power impact, structural material must cause irreversible damage accumulation and Progressive failure, increase
Maintenance difficulties and cost.
Therefore there is an urgent need to study it is a kind of can water stone divide and rule, resist boulder impact and consider passive energy dissipation
New structure improves the energy dissipation capacity of structure, reduces structure stress mutation and damage caused by instantaneously colliding.
Especially big high position debris flow has important social effect and economic value.China western mountainous areas high position mud-rock flow
Ditch is more developed, if structure of blocking cannot persistently resist boulder in mud-rock flow and impact for a long time, will easily form a large-scale high position
High speed mud-rock flow, destroy by rush of water downstream house, clog downstream river, and harm is huge.In addition, having broken out high-order mud-rock flow for one
Raceway groove then needs to put into engineering progress Emergency management immediately, prevents the further sociability of mud-rock flow from breaking out.
Invention content
The purpose of the present invention is aiming at the above problem of the existing technology, by the way that separated pile trammel is arranged and adds
Earthquake isolating equipment and prestress anchorage cable propose that a kind of novel Self-resetting energy consumption is blocked structure, to increase the energy consumption of pile body and anti-
Jolt capacity.
It the purpose of the present invention and solves its technical problem and can be achieved through the following technical solutions.
The especially big high-order mud-rock flow Self-resetting energy consumption proposed according to the present invention is blocked structure, including：Two rows of armored concrete
Stake, linking beam, mat foundation, prestress anchorage cable, damping material.First row armored concrete is separated pile structure, including two
Part：Front end arc pile body and tail portion rectangular pile body, the rectangular cross-section of second row reinforced concrete pile, mat foundation are also reinforcing bar
Concrete structure.Linking beam is divided into 4 kinds according to position：First continuous beam (3-1), the second continuous beam (3-2), third
Continuous beam (3-3), the 4th continuous beam (3-4) are connected with the first linking beam (3-1) between first row rectangular pile body；First row square
It is connected with the second linking beam (3-2) between shape pile body and massif, the second linking beam (3-2) needs 1.5m in build-in to massif in addition；
First campshed rectangular pile body is connect with second row rectangular pile by third linking beam (3-3)；With between second row rectangular pile body
Four linking beams (3-4) connect.
First row arc pile body, first row rectangular pile body and second row rectangular pile body all with mat foundation one-piece casting；The
One row's arc pile body is connected with mat foundation by multiple rows of vertical non-bonding prestress tendon perforation；First row arc pile body and square
It is detached between shape pile body, and fills anticorrosion rubber damping material.
The detached section width of arc pile body and rectangular pile body in first row separated pile structure and highly consistent, stake is wide
2~3m.The horizontal distance of the horizontal length of arc pile body, i.e. detached section to arc apex is 0.5~1.0m.Rectangular pile body
Horizontal length is 2~3m.
Multiple tracks evagination collar tie beam is set on the outside of the arc of arc pile body, and collar tie beam section is arc-shaped, the adjacent turn of multiple tracks collar tie beam
Distance between girders distance about 2~4m, casting concrete beam or anchored by prefabricated arc girder steel can form at the scene.
Multiple rows of vertical non-bonding prestress tendon in arc pile body is mounted in inside concrete mat foundation.Anchor cable top
It is anchored with anchor bolt in arc pile body surface, and protects anchor head with anchor lid outside.
Multiple rows of vertical non-bonding prestress tendon arrangement in arc pile body is linear type, or is arranged as arc, with
The outer arcuate shape of arc pile body is consistent.
Arc pile body and rectangular pile body fill damping material and are alternatively EPS or other composite damping materials, and can increase more
Group spring.Distance between arc pile body and rectangular pile body is 50mm.
Advantageous effect
Implement the method for the structure, which is characterized in that include the following steps：
First step：Measure unwrapping wire in raceway groove bend or closing in section, determine mat foundation, stake position；Second step
Suddenly：Construction reinforced bar concrete mat foundation；It is excavated to projected depth, lays template, puts steel reinforcement cage, pours into a mould raft foundation；
Third step：Construction reinforced bar concrete pile structure；Assembling reinforcement lays template, pours first row, the second placing of reinforcement
Concrete-pile；Wherein, seam is filled in the directly reserved damping of first row front end arc pile body and rectangular pile body, and in first row front end
Arc-shaped pile body internal reservation anchor cable channel, and Inner bolt head has been buried, anchor head is connect with anchor cable；
Four steps：Construction reinforced bar concrete horizontal links girder construction, and template is laid in assembling reinforcement, and section is embedded in by versant
The pore-creating of horizontal linking beam elder generation, places into steel reinforcement cage, casting concrete；
5th step, after concrete strength enhancing, stretch-draw anchor forms prestressing force.
The especially big high-order mud-rock flow Self-resetting energy consumption of the present invention is blocked structure, is had the following effects that：
(1) structure of blocking play the role of water stone divide and rule, resist boulder on the basis of, further improve the consumption of structure
Energy damping capacity, improves the service life of structure.The structure that will block flood control anti-impact standard was increased to 50 years one from 20 years one chances
It meets, the service life of structure even can extend to 60 years；
It (2), can be pre- by jack and multiple rows of vertical soap-free emulsion polymeization when structure of blocking is conjugated by megalith multiple impact
Stress anchor cable achievees the effect that reset, increases the anticollision reset capability of structure so that deformation can within the scope of 20~50cm
To reset completely.
(3) the positive multiple tracks evagination collar tie beam of structure of blocking can have megalith cusp slabbing action so that and megalith is more broken,
To which dispersion is to the Impact energy of agent structure.
(4) improvement program is clear, and operability is strong；
(5) raceway groove for being used to occur high-order mud-rock flow is administered, it is therefore prevented that further sociability breaks out mud-rock flow, subtracts
It is light that downstream place is destroyed.
In conclusion the present invention technically has significant progress, and there is apparent good effect, be really a novelty,
Progress, practical technical method.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
Simultaneously can be implemented in accordance with the contents of the specification, and in order to allow the present invention above and other objects, features and advantages energy
Enough it is clearer and more comprehensible, it is special below to lift preferred embodiment, and coordinate attached drawing, detailed description are as follows.
Description of the drawings
Fig. 1 is that the especially big high-order mud-rock flow Self-resetting energy consumption of the present invention is blocked structural plan arrangement schematic diagram；
Fig. 2 is I-I sectional views in Fig. 1；
Fig. 3 is II-II sectional views in Fig. 1；
1-1, first row arc pile body, 1-1-1, the damping material filled, 1-1-2, anchor lid, 1-1-3, evagination collar tie beam, 1-
1-4, anchor bolt, 1-1-5, vertical non-bonding prestress tendon, 1-2, first row rectangular pile body, 2, second row rectangular pile, 3-
1, the first linking beam between the first campshed, the second linking beam between 3-2, the first campshed and massif, 3-3, first and second row's rectangle
Third linking beam between stake, the 4th linking beam between 3-4, the second campshed, 4, mat foundation.
Specific implementation mode
To further describe the present invention, it blocks with reference to the accompanying drawings and examples to especially big high-order mud-rock flow Self-resetting energy consumption
Structure is described in further detail.
Especially big high-order mud-rock flow Self-resetting as shown in Figure 1, which consumes energy, blocks structural plan arrangement schematic diagram and combines Fig. 2,3
To find out, the especially big high-order mud-rock flow Self-resetting energy consumption proposed according to the present invention is blocked structure, including：Two rows of reinforced concrete piles,
Linking beam, mat foundation, prestress anchorage cable, damping material.First row armored concrete is separated pile structure, including two
Point：Front end arc pile body and tail portion rectangular pile body, distance is 50mm between the two, and centre can fill damping material, damping material
It can be EPS or other composite damping materials, and multigroup spring can be increased.The rectangular cross-section of second row reinforced concrete pile, piece raft
Basis is also reinforced concrete structure.Linking beam is divided into 4 kinds according to position：First continuous beam (3-1), second are continuously
Beam (3-2), third continuous beam (3-3), the 4th continuous beam (3-4), between first row rectangular pile body even with the first linking beam (3-1)
It connects；It is connected with the second linking beam (3-2) between first row rectangular pile body and massif, the second linking beam (3-2) needs build-in to arrive in addition
1.5m in massif；First campshed rectangular pile body is connect with second row rectangular pile by third linking beam (3-3)；Second row rectangular pile
It is connected with the 4th linking beam (3-4) between body.First row arc pile body, first row rectangular pile body and second row rectangular pile body all with
Mat foundation one-piece casting；First row arc pile body and mat foundation penetrate through phase by multiple rows of vertical non-bonding prestress tendon
Even；It is detached between first row arc pile body and rectangular pile body, and fills anticorrosion rubber damping material.First row separated pile knot
The detached section width of arc pile body and rectangular pile body in structure and highly consistent, the wide 2~3m of stake.The level of arc pile body is long
Degree, the i.e. horizontal distance of detached section to arc apex are 0.5~1m.The horizontal length of rectangular pile body is 2~3m.Arc pile body
Arc on the outside of multiple tracks evagination collar tie beam is set, collar tie beam section is arc-shaped, multiple tracks collar tie beam adjacent spaces distance about 2~4m, can be
Poured in place concrete beam or anchored by prefabricated arc girder steel is formed.Multiple rows of vertical non-bonding prestress tendon in arc pile body
It is mounted in inside concrete mat foundation.Anchor cable top is anchored in arc pile body surface with anchor bolt, and outside with anchor lid
Protect anchor head.Multiple rows of vertical non-bonding prestress tendon arrangement in arc pile body is linear type, or is arranged as arc, with
The outer arcuate shape of arc pile body is consistent.
Embodiment：The regional situation of construction：Mud-rock flow raceway groove height difference 2.5km, ditch Taoist priest 6km, avalanche, cunning are largely developed in two sides
The geological disasters such as slope, in history flow velocity be up to 2000m3/ s, solid material resource is abundant, and block stone volume maximum reaches 500m3, block stone
Impact force is huge.Steps are as follows for Specific construction.First step：Measurement and positioning.According to design requirement, generally in raceway groove bend, receipts
Mouthful section measures unwrapping wire, determine mat foundation, stake position；Second step：Construction reinforced bar concrete mat foundation.It is excavated to
Projected depth lays template, puts steel reinforcement cage, pours into a mould raft foundation；Third step：Construction reinforced bar concrete pile structure.Assembling reinforcement,
Template is laid, first row, second row reinforced concrete pile are poured.Wherein, straight in first row front end arc pile body and rectangular pile body
It connects reserved 50mm dampings and fills seam, and in first row front end arc-shaped pile body internal reservation anchor cable channel, generally use casing, and bury
Inner bolt head, anchor head are connect with anchor cable, in addition, arc pile body arch section reinforcing bar is encrypted, and are drawn for making external collar tie beam
Reinforcing bar；Four steps：Construction reinforced bar concrete horizontal links girder construction, and template is laid in assembling reinforcement, horizontal by versant insertion section
Linking beam needs with the pore-creating of electric drill elder generation, to place into steel reinforcement cage, casting concrete；5th step, after concrete strength enhancing,
Anchor cable is drawn, forms prestressing force, and filled in seam in damping and refill damping material.Also seam can be filled in damping in third step
Inside it is placed in advance in the damping material plate containing multigroup spring made.
Claims (7)
- The structure 1. especially big high position mud-rock flow Self-resetting energy consumption is blocked, it is characterised in that：Include the first of mud-rock flow upstream impulse face Placing of reinforcement concrete separated pile structure, i.e. front end arc pile body (1-1) and tail portion rectangular pile body (1-2), the second placing of reinforcement are mixed Solidifying soil rectangular pile (2), armored concrete mat foundation (4), the first linking beam (3-1), the second linking beam (3-2), third link Beam (3-3), the 4th linking beam (3-4)；It is connected with the first linking beam (3-1) between first row rectangular pile body (1-2)；First row square Shape pile body (1-2) is connect between massif with the second linking beam (3-2), and the second linking beam (3-2) needs in build-in to massif in addition 1.5-2m；First campshed rectangular pile body (1-2) is connect with second row rectangular pile (2) by third linking beam (3-3)；Second row square It is connected with the 4th linking beam (3-4) between shape pile body (2)；First row arc pile body (1-1), first row rectangular pile body (1-2) and the second row rectangular pile body (2) all with piece raft Basic (4) one-piece casting；First row arc pile body (1-1) and mat foundation (4) pass through multiple rows of vertical non-bonding prestress tendon (1-1-5) perforation is connected；It is detached between first row arc pile body (1-1) and rectangular pile body (1-2), and fills damping material (1- 1-1)。
- The structure 2. especially big high-order mud-rock flow Self-resetting energy consumption according to claim 1 is blocked, it is characterised in that：First row arc It is internal that multiple rows of vertical non-bonding prestress tendon (1-1-5) in shape pile body (1-1) is mounted in concrete mat foundation (4)；Anchor The rope top (1-1-5) is anchored on the arc pile body surface (1-1) with anchor bolt (1-1-4), and is protected outside with anchor lid (1-1-2) Protect anchor head.
- The structure 3. especially big high-order mud-rock flow Self-resetting energy consumption according to claim 1 is blocked, it is characterised in that：Multiple rows of vertical non-bonding prestress tendon (1-1-5) arrangement in first row arc pile body (1-1) is linear type, or It is arranged as arc, it is consistent with the outer arcuate shape of arc pile body (1-1).
- The structure 4. especially big high-order mud-rock flow Self-resetting energy consumption according to claim 1 is blocked, it is characterised in that：First row arc Shape pile body (1-1) and rectangular pile body (1-2) fill anticorrosion rubber damping material, or also increase multigroup spring；Arc pile body The distance between (1-1) and rectangular pile body (1-2) 50mm.
- The structure 5. especially big high-order mud-rock flow Self-resetting energy consumption according to claim 1 is blocked, it is characterised in that：Described The detached section width of arc pile body (1-1) in one row's separated pile structure and rectangular pile body (1-2) and highly consistent, stake is wide 2~3m；The horizontal length of arc pile body (1-1), the i.e. horizontal distance of detached section to arc apex are 0.5~1.0m；Rectangle The horizontal length of pile body (1-2) is 2~3m.
- The structure 6. especially big high-order mud-rock flow Self-resetting energy consumption according to claim 1 is blocked, it is characterised in that：First row arc Setting multiple tracks evagination collar tie beam (1-1-3) on the outside of the arc of shape pile body (1-1), collar tie beam section is arc-shaped, adjacent in multiple tracks collar tie beam Collar tie beam spacing distance about 2~4m, at the scene casting concrete beam or anchored by prefabricated arc girder steel formed.
- 7. implementing the method for structure described in claim 1-6 any one, which is characterized in that include the following steps：First step：Measure unwrapping wire in raceway groove bend or closing in section, determine mat foundation, stake position；Second step：It applies Work armored concrete mat foundation；It is excavated to projected depth, lays template, puts steel reinforcement cage, pours into a mould raft foundation；Third step：Construction reinforced bar concrete pile structure；Assembling reinforcement lays template, pours first row, second row reinforced concrete Native stake；Wherein, seam is filled in the directly reserved damping of first row front end arc pile body and rectangular pile body, and in first row front end arc Pile body internal reservation anchor cable channel, and Inner bolt head has been buried, anchor head is connect with anchor cable；Four steps：Construction reinforced bar concrete horizontal links girder construction, and template is laid in assembling reinforcement, horizontal by versant insertion section The pore-creating of linking beam elder generation, places into steel reinforcement cage, casting concrete；5th step, after concrete strength enhancing, stretch-draw anchor forms prestressing force.
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| CN108360465B (en) * | 2018-01-14 | 2023-07-25 | 浙江大学 | Wedge-shaped debris flow diversion blocking device and construction method thereof |
| CN108677880B (en) * | 2018-07-27 | 2024-03-19 | 中国电建集团成都勘测设计研究院有限公司 | Pile-forest dam for complex geological conditions |
| CN110593205B (en) * | 2019-08-23 | 2022-04-29 | 中国地质环境监测院 | High-order debris flow multistage self-adaptive barrier pile group disaster reduction structure and implementation method |
| CN110593206B (en) * | 2019-08-23 | 2022-04-26 | 中国地质环境监测院 | High-level debris flow assembly type rigid-flexible combined blocking structure and implementation method |
| CN112252375B (en) * | 2020-09-29 | 2022-04-08 | 中国地质环境监测院 | Energy consumption and disaster reduction device and method for high-position debris flow disaster flexible pile group |
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| JP2867320B2 (en) * | 1994-10-27 | 1999-03-08 | 鹿島建設株式会社 | Road construction structure and construction method in mountainous areas |
| CN2654683Y (en) * | 2003-11-27 | 2004-11-10 | 陈洪凯 | Mud-rock flow quick draining structure |
| CN202416338U (en) * | 2011-05-06 | 2012-09-05 | 北方工业大学 | Foundation for novel grating dam |
| CN202298556U (en) * | 2011-10-26 | 2012-07-04 | 中铁西北科学研究院有限公司勘察设计分公司 | Novel prevention structure for landslide converting-type debris flow |
| KR101418998B1 (en) * | 2012-05-24 | 2014-07-15 | (주)우경케이피이 | Column structure for debris flow prevention, Safety fences and Construction Method thereof |
| CN104314045B (en) * | 2014-09-17 | 2015-12-09 | 中国地质环境监测院 | Especially big high-order mud-rock flow stake beam combination structure and prevention and controls |
| CN104328768A (en) * | 2014-09-29 | 2015-02-04 | 兰州理工大学 | Debris flow blocking structure capable of resisting impact of large stones for steel pipe concrete pile group |
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