CN106400744A - Comprehensive side-slope treatment structure for preventing river channel erosion and construction method thereof - Google Patents

Comprehensive side-slope treatment structure for preventing river channel erosion and construction method thereof Download PDF

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Publication number
CN106400744A
CN106400744A CN201610978826.4A CN201610978826A CN106400744A CN 106400744 A CN106400744 A CN 106400744A CN 201610978826 A CN201610978826 A CN 201610978826A CN 106400744 A CN106400744 A CN 106400744A
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concrete
river channel
guard wall
concrete guard
river course
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CN201610978826.4A
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CN106400744B (en
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王樱畯
黄维
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PowerChina Huadong Engineering Corp Ltd
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PowerChina Huadong Engineering Corp Ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)

Abstract

The invention relates to a comprehensive side-slope treatment structure for preventing river channel erosion and a construction method thereof. The comprehensive side-slope treatment structure aims at preventing the phenomenon that a river channel covering layer at the downstream position of a flood releasing structure is thick and is frequently scoured by water flow, and therefore side slopes at both shores and a river channel are comprehensively treated, and stability and safety of the side slopes and buildings near the side slopes are ensured. According to the technical scheme, the comprehensive side-slope treatment structure for preventing river channel erosion is characterized in that concrete guard walls are arranged on the river channel side slopes at the downstream position of a flood releasing structure, two to three rows of cement cast-in-place piles stretching into the bed rock surface are arranged on the side, close to a river channel, of each concrete guard wall, and the space between each concrete guard wall and the corresponding river bank is backfilled with rock ballast; concrete foundations connected with the corresponding concrete guard walls are arranged at the tops of the cement cast-in-place piles, and a structural joint is arranged between each concrete foundation and the corresponding concrete guard wall; and alloy net stone bags which are connected in series and extend to the bottom of a riverbed are arranged on the side, close to the river channel, of each concrete foundation.

Description

A kind of side slope comprehensive control structure of prevention river channel erosion and its construction method
Technical field
The present invention relates to a kind of side slope comprehensive control structure of prevention river channel erosion and its construction method are it is adaptable to flood discharge is built The covering of rivers layer building thing downstream is deeper, frequently suffer from current scour, needs to carry out comprehensive control to two sides side slope and river course When design and construction.
Background technology
For hydraulic engineering flood releasing structure, when current are after stiling basin or protection-apron significantly energy dissipating, also maintains Certain complementary energy.Often necessary safeguard procedures are considered in the river course in stiling basin or protection-apron downstream and two sides side slope in common engineering, To protect riverbed from washing away it is ensured that the stable safety of side slope and its nearby buildings.
When the covering of rivers layer in flood releasing structure downstream is deeper, when frequently suffering from current scour, frequently with slurry in engineering The method such as (doing) pitched work or river bottom protection, concrete guard wall, administers to two sides side slope and river course.Make in long-term water impact With under, Riverbed may be flushed away formation large range of punching hole, part engineering even occur bank protection (river bottom protection) destroy, gear Wall deforms or even collapses etc. phenomenon, seriously threatens engineering safety.How to be considered as safe reliable comprehensive control measures it is ensured that The river course of deep covering layer and two sides side slope safety, are the important technologies that engineering slope processes in design and construction.
Content of the invention
The technical problem to be solved in the present invention is:For above-mentioned problem, provide a kind of side of prevention river channel erosion Slope comprehensive control structure and its construction method, the covering of rivers layer in prevention flood releasing structure downstream is deeper, frequently suffer from current Wash away, thus comprehensive control is carried out to two sides side slope and river course it is ensured that the stable safety of side slope and its nearby buildings.
The technical solution adopted in the present invention is:A kind of side slope comprehensive control structure of prevention river channel erosion, its feature exists In:Concrete guard wall is arranged on the Channel slope in flood releasing structure downstream, described concrete guard wall leans on river course side to arrange 2~3 Row stretches into the cement cast-in-place piles of bedrock surface, adopts rock ballast to backfill between barricade and riverbank;The top of described cement cast-in-place piles be provided with The concrete foundation that concrete guard wall connects, and setting structure seam between this concrete foundation and concrete guard wall;Described mixed Being disposed with by river course side of solidifying earth foundation is mutually contacted and is postponed to the alloy network stone pocket of riverbed bottom.
Be embedded with some a diameter of 10cm in described concrete guard wall, spacing be 2~3m drain pipe.
A kind of construction method of the side slope comprehensive control structure of prevention river channel erosion is it is characterised in that step is as follows:
1st, excavate concrete guard wall and this barricade leans on the basis of river course side, excavate loose Surface mulch layer and tamp;
2nd, cement grouting pile driving construction, depending on the river course side arrangement a diameter of 0.8~2m of 2~3 rows, spacing in concrete guard wall is 1 The cement cast-in-place piles of~2m, its end stretch enters bedrock surface certain depth;
3rd, casting concrete barricade, every 10~15m setting structure seam, and embedded a diameter of 10cm, spacing are 2~3m's Drain pipe;
4th, backfill rock ballast between concrete guard wall and riverbank;
5th, concrete guard wall by river course side pour thickness be 1~2m, width be 3~5m concrete foundation, and arrange Structural joint;
6th, fill alloy network stone pocket in concrete foundation by river course side and postpone to bottom of river channel, alloy network stone pocket thinnest part Not less than 3 layers, bottom level thickness is not less than 10m, and slope ratio is for 1:1.5;The mesh development size of alloy network stone pocket be 20~ 30cm, in pocket, building stones are filled rate and are more than 90%, and building stones particle diameter is more than mesh maximum 1.5~2 times of development size, be 30~ 60cm.
The invention has the beneficial effects as follows:
1st, the alloy network stone pocket construction being concatenated is simple, good integrity, have well adapt to foundation deformation ability and Erosion resistibility;After the part Riverbed in flood releasing structure downstream is washed away by current, can take on a certain scale rushes hole, Alloy network stone pocket because flexible, can under Gravitative Loads preferably filling punching hole, prevent from rushing sending out further of hole and river channel erosion Exhibition, plays a good protection to riverbed, can be conducive to the steady of barricade and its basis as antibody before grout pile simultaneously Fixed.
2nd, 2~3 row's cement cast-in-place piles are set outside concrete guard wall, and stretch into basement rock it is ensured that barricade and its basis Stable, and not by current scour.
3rd, cement cast-in-place piles top setting concrete foundation, plays interconnection function between stake and barricade;Concrete foundation Setting structure seam, makes each self-structure all adapt to a certain degree of deformation and barricade between, also can close the outer side base of barricade simultaneously Plinth, prevents directly washing away of current.
4th, river course and the bank slope safety of deep covering layer have been effectively ensured, have weakened or slow down the degradation degree in river course, There is in engineering practice very positive meaning.
Brief description
Fig. 1 is the structural representation of the present invention.
Specific embodiment
As shown in figure 1, a kind of side slope comprehensive control structure of the present embodiment prevention river channel erosion, in flood releasing structure downstream Channel slope on concrete guard wall 5 is set, concrete guard wall 5 lean on river course side (outside) to arrange 2~3 rows to stretch into bedrock surface certain Depth, a diameter of 0.8~2m, spacing are the cement cast-in-place piles 2 of 1~2m, and barricade is backfilled using rock ballast 6 by riverbank side (dorsal part), During casting concrete barricade 5, every 10~15m setting structure seam, and in concrete guard wall 5 pre-buried some a diameter of 10cm, Spacing is the drain pipe 4 of 2~3m.The top of cement cast-in-place piles 2 pour thickness be 1~2m, width be 3~5m concrete foundation 3 are connected with concrete guard wall 5, and setting structure seam;Concrete foundation 3 by river course side (outside) be disposed with mutual series winding and Postpone to the alloy network stone pocket 1 of riverbed bottom.
The construction procedure of the present embodiment is as follows:
1st, excavate concrete guard wall 5 and this barricade leans on the basis of river course side, excavate loose Surface mulch layer, retain relatively Fine and close basis, can suitably tamp, if necessary to meet the requirement to foundation bearing capacity for the concrete guard wall 5;
2nd, cement cast-in-place piles 2 are constructed, and lean on river course side to arrange that a diameter of 0.8~2m of 2~3 rows, spacing are in concrete guard wall 5 The cement cast-in-place piles 2 of 1~2m, its end stretch enters bedrock surface certain depth;
3rd, casting concrete barricade 5, every 10~15m setting structure seam, depending on barricade size is according to concrete engineering requirement; And bury the drain pipe 4 that a diameter of 10cm, spacing are 2~3m in barricade;
4th, riverbank side (and riverbank between) is leaned on to backfill rock ballast 6 in concrete guard wall 5, riverbank side is usually building or road 7 etc.;
5th, pour thickness in concrete guard wall 5 by river course side and be about 1~2m, the width about concrete foundation 3 of 3~5m, And setting structure seam;
6th, fill alloy network stone pocket 1 in concrete foundation 3 by river course side (outside) and postpone to bottom of river channel, thinnest part is not Less than 3 layers, bottom level thickness is not less than 10m, slope ratio typically about 1:1.5;Alloy network dress stone capacity is according to concrete engineering feelings Condition determines, its mesh development size is generally 20~30cm, and in pocket, building stones are filled rate and be should be greater than 90%, and building stones particle diameter should be greater than net 1.5~2 times of the maximum development size of eye, typically about 30~60cm.

Claims (3)

1. a kind of prevention river channel erosion side slope comprehensive control structure it is characterised in that:River course side in flood releasing structure downstream Setting concrete guard wall (5) on slope, described concrete guard wall (5) leans on river course side to arrange that 2~3 rows stretch into the cement grouting of bedrock surface Stake (2), adopts rock ballast (6) to backfill between barricade and riverbank;The top of described cement cast-in-place piles (2) is provided with and concrete guard wall (5) The concrete foundation (3) connecting, and setting structure seam between this concrete foundation and concrete guard wall (5);Described concrete Being disposed with by river course side of basic (3) is mutually contacted and is postponed to alloy network stone pocket (1) of riverbed bottom.
2. according to claim 1 a kind of prevention river channel erosion side slope comprehensive control structure it is characterised in that:Described mixed Be embedded with some a diameter of 10cm in solidifying soil barricade (5), spacing be 2~3m drain pipe (4).
3. a kind of construction method of the side slope comprehensive control structure of prevention river channel erosion is it is characterised in that step is as follows:
3.1st, excavate concrete guard wall (5) and this barricade leans on the basis of river course side, excavate loose Surface mulch layer and tamp;
3.2nd, cement cast-in-place piles (2) construction, leans on the river course side arrangement a diameter of 0.8~2m of 2~3 rows, spacing in concrete guard wall (5) Cement cast-in-place piles (2) for 1~2m, its end stretch enters bedrock surface certain depth;
3.3rd, casting concrete barricade (5), every 10~15m setting structure seam, and embedded a diameter of 10cm, spacing are 2~3m Drain pipe (4);
3.4th, backfill rock ballast (6) and riverbank between in concrete guard wall (5);
3.5th, concrete guard wall (5) by river course side pour thickness be 1~2m, width be 3~5m concrete foundation (3), and Setting structure is stitched;
3.6th, fill alloy network stone pocket (1) in concrete foundation (3) by river course side and postpone to bottom of river channel, alloy network stone pocket (1) thinnest part is not less than 3 layers, and bottom level thickness is not less than 10m, and slope ratio is for 1:1.5;The mesh development size of alloy network stone pocket For 20~30cm, in pocket, building stones fill rate more than 90%, and building stones particle diameter is more than 1.5~2 times of mesh maximum development size, is 30 ~60cm.
CN201610978826.4A 2016-11-08 2016-11-08 A kind of side slope comprehensive treatment structure and its construction method for preventing river channel erosion Active CN106400744B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107254886A (en) * 2017-07-31 2017-10-17 中国电建集团成都勘测设计研究院有限公司 Eco-friendly barrier wall structure for covering layer slope
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
CN111778922A (en) * 2020-06-18 2020-10-16 上海河道建设有限公司 Construction method of river basin flood control dam
CN111794220A (en) * 2020-07-10 2020-10-20 江阴市白屈港水利枢纽工程管理处 PHC tubular pile cladding reinforcing section structure
CN112854138A (en) * 2021-01-09 2021-05-28 中铁广州工程局集团有限公司 Existing river course diversion construction method

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KR100928530B1 (en) * 2009-06-16 2009-11-26 이순호 Forming system for field construction of concrete surface protector and surface protection method using the same
CN102995601A (en) * 2012-11-19 2013-03-27 陕西煤业化工建设(集团)有限公司 Municipal flood control integrated engineering construction technology for strong flushing embankment
CN203429597U (en) * 2013-07-10 2014-02-12 中国水电顾问集团华东勘测设计研究院 Anti-underwashing protection slope structure for downstream river channel of hydropower plant
CN104234005A (en) * 2014-08-27 2014-12-24 中铁第一勘察设计院集团有限公司 Railway river-following embankment anti-flushing protection structure and construction method of railway river-following embankment anti-flushing protection structure
CN206204880U (en) * 2016-11-08 2017-05-31 中国电建集团华东勘测设计研究院有限公司 A kind of side slope comprehensive regulation structure of prevention river channel erosion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100928530B1 (en) * 2009-06-16 2009-11-26 이순호 Forming system for field construction of concrete surface protector and surface protection method using the same
CN102995601A (en) * 2012-11-19 2013-03-27 陕西煤业化工建设(集团)有限公司 Municipal flood control integrated engineering construction technology for strong flushing embankment
CN203429597U (en) * 2013-07-10 2014-02-12 中国水电顾问集团华东勘测设计研究院 Anti-underwashing protection slope structure for downstream river channel of hydropower plant
CN104234005A (en) * 2014-08-27 2014-12-24 中铁第一勘察设计院集团有限公司 Railway river-following embankment anti-flushing protection structure and construction method of railway river-following embankment anti-flushing protection structure
CN206204880U (en) * 2016-11-08 2017-05-31 中国电建集团华东勘测设计研究院有限公司 A kind of side slope comprehensive regulation structure of prevention river channel erosion

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107254886A (en) * 2017-07-31 2017-10-17 中国电建集团成都勘测设计研究院有限公司 Eco-friendly barrier wall structure for covering layer slope
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
CN111778922A (en) * 2020-06-18 2020-10-16 上海河道建设有限公司 Construction method of river basin flood control dam
CN111794220A (en) * 2020-07-10 2020-10-20 江阴市白屈港水利枢纽工程管理处 PHC tubular pile cladding reinforcing section structure
CN111794220B (en) * 2020-07-10 2022-04-05 江阴市白屈港水利枢纽工程管理处 PHC tubular pile cladding reinforcing section structure
CN112854138A (en) * 2021-01-09 2021-05-28 中铁广州工程局集团有限公司 Existing river course diversion construction method
CN112854138B (en) * 2021-01-09 2022-07-08 中铁广州工程局集团有限公司 Existing river course diversion construction method

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