CN109972639B - River beach area embankment slope nested protective structure and construction method - Google Patents
River beach area embankment slope nested protective structure and construction method Download PDFInfo
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- CN109972639B CN109972639B CN201910391395.5A CN201910391395A CN109972639B CN 109972639 B CN109972639 B CN 109972639B CN 201910391395 A CN201910391395 A CN 201910391395A CN 109972639 B CN109972639 B CN 109972639B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/202—Securing of slopes or inclines with flexible securing means
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
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Abstract
The invention provides a river beach area embankment slope nested protective structure and a construction method, wherein a foot protection wall is arranged at the bottom of a slope, grooves from the top of the slope to the foot protection wall are arranged on the slope at regular intervals, a layer of reverse-filtering geotechnical cloth is paved on the slope, a plurality of rows of protective blocks are paved on the reverse-filtering geotechnical cloth, each protective block comprises an A-type block and a B-type block, a back ridge is arranged in the middle of the back surface of the A-type block, a groove is arranged at the top of the back ridge, and a bump is arranged at the bottom of the back ridge; the two sides of the back of the B-shaped block are respectively provided with a flanging, the top of the flanging is provided with a groove, and the bottom of the flanging is provided with a bump; the multiple rows of protection blocks are arranged in a staggered manner according to a row of A-shaped blocks and a row of B-shaped blocks, the back edge of each A-shaped block is arranged in one groove on a side slope, each B-shaped block spans between two grooves, and adjacent flanges of two adjacent B-shaped blocks are tightly adhered to each other and are positioned in the same groove; the upper and lower A-shaped blocks and the B-shaped blocks are mutually nested and meshed through the convex blocks and the concave grooves. The invention has firm structure and can effectively resist flood erosion.
Description
Technical Field
The invention relates to the technical field of highway subgrade slope protection, in particular to a embankment slope protection structure and a protection method in a river beach area.
Background
The highway subgrade side slope is a protective structure with six hollow edge blocks and grass planting, and the structure can effectively resist the invasion of rainwater and is attractive. However, when the roadbed is positioned on a flood beach, the roadbed slope is flushed back and forth by flood in flood season, large pores appear in the hollow hexagonal blocks, after the water level is reduced, the slope can collapse, and unpredictable safety influence is brought to the roadbed safety, so that the problems of water level wave flushing damage and seepage slope damage caused by water level lifting are always key problems of bank slope protection in the river bank slope protection engineering.
Disclosure of Invention
The invention aims to solve the problems in the current river bank slope protection engineering, provides a river bank slope protection structure and a protection method for river bank areas, and solves the problems of slope collapse caused by water level wave scouring damage and water level lifting.
In order to achieve the above purpose, the invention provides a river beach area embankment slope nested protective structure, which is characterized in that: a foot protection wall with a certain height is arranged at the bottom of a slope, grooves from the top of the slope to the top of the foot protection wall are formed in the slope at certain intervals along the longitudinal direction of the slope, a layer of reverse-filtering geotechnical cloth is paved on the whole slope, a plurality of rows of protection blocks are paved from the top of the foot protection wall to the top of the slope along the slope of the slope, each protection block comprises an A-type block and a B-type block which are concrete prefabricated members with rectangular plane main structures, an back edge is arranged in the middle of the back surface of each A-type block, an A-type block groove lower than the top edge of each A-type block is formed in the top of each back edge, and an A-type block protruding block extending to below the bottom edge of each A-type block is arranged at the bottom of each back edge; the two sides of the back of the B-shaped block are respectively provided with a turned-over edge, the top of the turned-over edge is provided with a B-shaped block groove, and the bottom of the turned-over edge is provided with a B-shaped block protruding block extending below the bottom edge of the B-shaped block; the multiple rows of protection blocks are arranged in a staggered manner according to a row of A-shaped blocks and a row of B-shaped blocks, the back edge of each A-shaped block is arranged in one groove on a side slope, each B-shaped block spans between two grooves, and adjacent flanges of two adjacent B-shaped blocks are mutually stuck tightly and are positioned in the same groove; the A-shaped block protruding blocks at the bottom of each A-shaped block back edge are inserted into the B-shaped block grooves at the tops of two adjacent flanging edges of two lower B-shaped blocks, and the B-shaped block protruding blocks at the bottoms of the flanging edges of two adjacent B-shaped blocks are inserted into the A-shaped block grooves at the tops of one lower A-shaped block back edge.
The invention also provides a construction method of the river beach area embankment slope nested protective structure, which is characterized in that:
(1) Prefabricating a plurality of side slope protection blocks by using concrete, wherein the protection blocks comprise A-type blocks and B-type blocks, the A-type blocks and the B-type blocks are all concrete prefabricated members with rectangular plane main structures, a back edge is arranged in the middle of the back surface of each A-type block, an A-type block groove lower than the top edge of the A-type block is arranged at the top of each back edge, and an A-type block protruding block extending to below the bottom edge of the A-type block is arranged at the bottom of each back edge; the two sides of the back of the B-shaped block are respectively provided with a turned-over edge, the top of the turned-over edge is provided with a B-shaped block groove, and the bottom of the turned-over edge is provided with a B-shaped block protruding block extending below the bottom edge of the B-shaped block;
(2) Building a foot protection wall at the bottom of the embankment side slope;
(3) Leveling the slope surface of the embankment slope, digging a groove from the slope top to the foot protection wall at regular intervals along the longitudinal direction of the slope surface, and paving a layer of reverse filtering geotextile on the whole slope surface;
(4) Paving the side slope protection blocks on the reverse filtering geotextile in a staggered mode from the top of the foot protection wall to the top of the slope in a row of A-shaped blocks and a row of B-shaped blocks, wherein when paving, the back edge of each A-shaped block is arranged in one groove on the side slope, each B-shaped block spans between two grooves, and adjacent flanges of two adjacent B-shaped blocks are tightly adhered to each other and are positioned in the same groove; the A-shaped block protruding blocks at the bottom of each A-shaped block back edge are inserted into B-shaped block grooves at the tops of two adjacent flanging edges of two lower B-shaped blocks, and the B-shaped block protruding blocks at the bottoms of the flanging edges of two adjacent B-shaped blocks are inserted into A-shaped block grooves at the tops of one lower A-shaped block back edge;
(5) After the protective blocks are paved, mortar pointing is adopted between the protective blocks.
The invention adopts the mutual nesting and occlusion between the two protection blocks with different structures, so that the formed slope protection structure is firm, the flushing of the slope caused by water level fluctuation tide can be effectively resisted, and the safety of the slope protection structure is ensured; the anti-filtration geotextile is arranged on the side slope, so that the infiltration of water can be effectively resisted, the soil loss of the side slope is prevented, and the stability of the side slope is improved; the adopted rectangular protection block has the weight of about 60 jin, two workers can finish the installation, the operation is convenient, and large-scale mechanical equipment is not needed; one side of the rectangular block is made into a chamfer shape, and the rectangular block is installed in a staggered manner in the upper and lower layers, so that the whole is attractive, and the visual effect of slope protection is improved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention for providing a groove on a side slope;
FIG. 2 is a schematic plan view of the invention for laying protective blocks on a slope;
FIG. 3 is a schematic elevational view of the invention for laying protective blocks on a slope, showing the nested construction of the A-blocks and B-blocks;
FIG. 4 is a schematic perspective view of a type A protective block;
FIG. 5 is a schematic view of the back structure of the type A shield block;
FIG. 6 is a schematic top view of a type A protective block;
FIG. 7 is a schematic perspective view of a B-type protective block;
FIG. 8 is a schematic view of the back structure of a B-type shield block;
FIG. 9 is a schematic top view of a B-block
FIG. 10 is a section A-A of FIG. 3 showing the placement of the A-type protective blocks on the slope;
FIG. 11 is a section B-B of FIG. 3 showing the placement of B-type blocks on a slope.
Detailed Description
As shown in figure 1, the invention is provided with foot protection walls 2 with a certain height at the bottom of a slope 1, and grooves 3 from the top of the slope to the top of the foot protection walls are arranged on the slope at certain intervals along the longitudinal direction of the slope.
As shown in fig. 2 and 3, a layer of reverse-filtering geotechnical cloth 4 is paved on the whole slope surface, a plurality of rows of protection blocks are paved from the top of the foot protection wall to the top of the slope along the slope surface of the side slope, each protection block comprises an A-type block 5 and a B-type block 6, and the A-type block and the B-type block are concrete prefabricated members with rectangular plane main structures.
As shown in fig. 4, 5 and 6, a back ridge 51 is arranged in the middle of the back surface of each a-shaped block 5, an a-shaped block groove 52 lower than the top edge of the a-shaped block is arranged at the top of the back ridge 51, and an a-shaped block protruding block 53 extending below the bottom edge of the a-shaped block is arranged at the bottom of the back ridge.
As shown in fig. 7, 8 and 9, two sides of the back of the B-shaped block 6 are respectively provided with a flange 61, the top of the flange 61 is provided with a B-shaped block groove 62, and the bottom of the flange is provided with a B-shaped block protruding block 63 extending below the bottom edge of the B-shaped block.
As shown in fig. 2, 3, 10 and 11, the multiple rows of protection blocks are laid alternately on the side slope according to a row of a-type blocks and a row of B-type blocks, the back edge 51 of each a-type block 5 is arranged in a groove on the side slope, each B-type block 6 spans between two grooves, and the adjacent flanges 61 of two adjacent B-type blocks are mutually adhered tightly and are positioned in the same groove; the A-shaped block protruding blocks at the bottom of each A-shaped block back edge are inserted into the B-shaped block grooves at the tops of two adjacent flanging edges of two lower B-shaped blocks, and the B-shaped block protruding blocks at the bottoms of the flanging edges of two adjacent B-shaped blocks are inserted into the A-shaped block grooves at the tops of one lower A-shaped block back edge.
In the implementation of the present invention, in order to facilitate trench excavation and to facilitate the laying of the protection blocks, the cross section of the trench 3 may be configured as a trapezoid.
In order to make the laying of the protection blocks firm, the cross section of the back ridge 51 of the A-shaped block 5 can be matched with the cross section of the groove, and the cross section of the adjacent flanges 61 of the two B-shaped blocks 6 after being tightly attached is matched with the cross section of the groove.
According to the invention, the grooves and the convex blocks of the A-type block and the B-type block are mutually nested and meshed to form an integral structure, and the two B-type block grooves after the two B-type blocks are turned and tightly adhered can just accommodate the A-type block convex block at the bottom of the back edge of one A-type block; the A-shaped block groove at the top of the A-shaped block back edge can just accommodate two B-shaped block convex blocks after the two B-shaped block flanging are tightly stuck.
In order to make the effect of the slope protection block after being paved more beautiful, one corner of the front faces of the A-type block and the B-type block can be a chamfer cutting structure.
The invention adopts the structure to carry out slope protection, and the concrete construction method is as follows:
(1) First, prefabricating a plurality of slope protection blocks by using concrete. The protection block comprises an A-shaped block and a B-shaped block, wherein the A-shaped block and the B-shaped block are concrete prefabricated members with rectangular plane main structures, the structures of the A-shaped block and the B-shaped block are as shown in fig. 4 to 9, a back rib 51 is arranged in the middle of the back surface of each A-shaped block 5, an A-shaped block groove 52 lower than the top edge of the A-shaped block is arranged at the top of the back rib, and an A-shaped block protruding block 53 extending to the position below the bottom edge of the A-shaped block is arranged at the bottom of the back rib; the two sides of the back of the B-shaped block 6 are respectively provided with a turned-over edge 61, the top of the turned-over edge is provided with a B-shaped block groove 62, and the bottom of the turned-over edge is provided with a B-shaped block protruding block 63 extending below the bottom edge of the B-shaped block.
(2) As shown in fig. 1, a foot protection wall 2 is built at the bottom of a embankment side slope 1; the foot protection wall can be built by stone blocks, and the stone blocks are stitched by cement mortar.
(3) Leveling the slope surface of the embankment slope, digging a groove 3 from the slope top to the retaining wall at regular intervals along the longitudinal direction of the slope surface, and paving a layer of reverse filtering geotechnical cloth on the whole slope surface.
(4) As shown in fig. 2, 3, 10 and 11, from the top of the foot protection wall to the top of the slope, the slope protection blocks are paved on the reverse filtering geotextile 4 in a staggered mode of a row of A-shaped blocks 5 and a row of B-shaped blocks 6. When the protection blocks are paved, each A-shaped block 5 spans across two sides of a groove, the back edges 51 of the A-shaped blocks 5 are inserted into the groove, each B-shaped block 6 spans across between two adjacent grooves, and the adjacent flanges 61 of the two adjacent B-shaped blocks 6 are mutually tightly adhered and positioned in the same groove; the A-shaped block protruding blocks at the bottom of each A-shaped block back edge are inserted into the B-shaped block grooves at the tops of two adjacent flanging edges of two lower B-shaped blocks, the B-shaped block protruding blocks at the bottoms of the flanging edges of two adjacent B-shaped blocks are inserted into the A-shaped block grooves at the tops of one lower A-shaped block back edge, and are nested with each other until the whole slope is fully paved.
(5) After the protective blocks are paved, mortar pointing is adopted between the protective blocks.
In the above method, the cross section of the groove is preferably trapezoidal. When the grooves are excavated, the width of the grooves and the distance between the adjacent grooves are determined according to the width of the protection blocks, so that the back edge of each A-shaped block in each row of A-shaped blocks can be inserted into one groove, and the adjacent turned edges of each two adjacent B-shaped blocks in each row of B-shaped blocks can be inserted into one groove.
In the method, the cross section of the A-shaped block back ridge is matched with the cross section of the groove, and the A-shaped block back ridge can be just accommodated in the groove; the cross sections of the adjacent turned edges of the two B-shaped blocks are matched with the cross sections of the grooves, and the two B-shaped blocks can be just accommodated in the grooves.
In the method, the two B-shaped block grooves after the two B-shaped block flanging are tightly adhered can just accommodate the A-shaped block convex blocks at the bottom of the A-shaped block back ridge; the A-shaped block groove at the top of the A-shaped block back edge can just accommodate two B-shaped block convex blocks after the two B-shaped block flanging are tightly stuck.
In the method, in order to make the effect of the slope protection block after being paved more attractive, one corner of the front faces of the A-type block and the B-type block can be set to be in a chamfer cutting structure.
Claims (10)
1. The utility model provides a river beach district embankment side slope nested formula protective structure which characterized in that: a foot protection wall with a certain height is arranged at the bottom of a slope, grooves from the top of the slope to the top of the foot protection wall are formed in the slope at certain intervals along the longitudinal direction of the slope, a layer of reverse-filtering geotechnical cloth is paved on the whole slope, a plurality of rows of protection blocks are paved from the top of the foot protection wall to the top of the slope along the slope of the slope, each protection block comprises an A-type block and a B-type block which are concrete prefabricated members with rectangular plane main structures, an back edge is arranged in the middle of the back surface of each A-type block, an A-type block groove lower than the top edge of each A-type block is formed in the top of each back edge, and an A-type block protruding block extending to below the bottom edge of each A-type block is arranged at the bottom of each back edge; the two sides of the back of the B-shaped block are respectively provided with a turned-over edge, the top of the turned-over edge is provided with a B-shaped block groove, and the bottom of the turned-over edge is provided with a B-shaped block protruding block extending below the bottom edge of the B-shaped block; the multiple rows of protection blocks are arranged in a staggered manner according to a row of A-shaped blocks and a row of B-shaped blocks, the back edge of each A-shaped block is arranged in one groove on a side slope, each B-shaped block spans between two grooves, and adjacent flanges of two adjacent B-shaped blocks are mutually stuck tightly and are positioned in the same groove; the A-shaped block protruding blocks at the bottom of each A-shaped block back edge are inserted into the B-shaped block grooves at the tops of two adjacent flanging edges of two lower B-shaped blocks, and the B-shaped block protruding blocks at the bottoms of the flanging edges of two adjacent B-shaped blocks are inserted into the A-shaped block grooves at the tops of one lower A-shaped block back edge.
2. The river beach area embankment slope nesting protection structure of claim 1, wherein: the cross section of the groove is trapezoid.
3. The river beach area embankment slope nesting type protective structure according to claim 1 or 2, wherein: the cross section of the A-shaped block back ridge is matched with the cross section of the groove; the cross sections of the adjacent turned edges of the two B-shaped blocks are matched with the cross sections of the grooves after the turned edges are tightly attached.
4. The river beach area embankment slope nesting protection structure of claim 1, wherein: the two B-shaped block grooves after the two B-shaped block flanging are tightly stuck can just accommodate an A-shaped block lug at the bottom of the A-shaped block back ridge; the A-shaped block groove at the top of the A-shaped block back edge can just accommodate two B-shaped block convex blocks after the two B-shaped block flanging are tightly stuck.
5. The river beach area embankment slope nesting protection structure of claim 1, wherein: one corner of the front faces of the A-type block and the B-type block is of a chamfer cutting structure.
6. A construction method of a river beach area embankment slope nested protective structure is characterized by comprising the following steps:
(1) Prefabricating a plurality of side slope protection blocks by using concrete, wherein the protection blocks comprise A-type blocks and B-type blocks, the A-type blocks and the B-type blocks are all concrete prefabricated members with rectangular plane main structures, a back edge is arranged in the middle of the back surface of each A-type block, an A-type block groove lower than the top edge of the A-type block is arranged at the top of each back edge, and an A-type block protruding block extending to below the bottom edge of the A-type block is arranged at the bottom of each back edge; the two sides of the back of the B-shaped block are respectively provided with a turned-over edge, the top of the turned-over edge is provided with a B-shaped block groove, and the bottom of the turned-over edge is provided with a B-shaped block protruding block extending below the bottom edge of the B-shaped block;
(2) Building a foot protection wall at the bottom of the embankment side slope;
(3) Leveling the slope surface of the embankment slope, digging a groove from the slope top to the foot protection wall at regular intervals along the longitudinal direction of the slope surface, and paving a layer of reverse filtering geotextile on the whole slope surface;
(4) Paving the side slope protection blocks on the reverse filtering geotextile in a staggered mode from the top of the foot protection wall to the top of the slope in a row of A-shaped blocks and a row of B-shaped blocks, wherein when paving, the back edge of each A-shaped block is arranged in one groove on the side slope, each B-shaped block spans between two grooves, and adjacent flanges of two adjacent B-shaped blocks are tightly adhered to each other and are positioned in the same groove; the A-shaped block protruding blocks at the bottom of each A-shaped block back edge are inserted into B-shaped block grooves at the tops of two adjacent flanging edges of two lower B-shaped blocks, and the B-shaped block protruding blocks at the bottoms of the flanging edges of two adjacent B-shaped blocks are inserted into A-shaped block grooves at the tops of one lower A-shaped block back edge;
(5) After the protective blocks are paved, mortar pointing is adopted between the protective blocks.
7. The construction method of the river beach area embankment slope nesting type protection structure according to claim 6, wherein the construction method comprises the following steps: the cross section of the groove is trapezoid.
8. The construction method of the river beach area embankment slope nesting type protective structure according to claim 6 or 7, wherein the construction method comprises the following steps: the cross section of the A-shaped block back ridge is matched with the cross section of the groove; the cross sections of the adjacent turned edges of the two B-shaped blocks are matched with the cross sections of the grooves after the turned edges are tightly attached.
9. The construction method of the river beach area embankment slope nesting type protection structure according to claim 6, wherein the construction method comprises the following steps: the two B-shaped block grooves after the two B-shaped block flanging are tightly stuck can just accommodate an A-shaped block lug at the bottom of the A-shaped block back ridge; the A-shaped block groove at the top of the A-shaped block back edge can just accommodate two B-shaped block convex blocks after the two B-shaped block flanging are tightly stuck.
10. The construction method of the river beach area embankment slope nesting type protection structure according to claim 6, wherein the construction method comprises the following steps: one corner of the front faces of the A-type block and the B-type block is of a chamfer cutting structure.
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| CN201910391395.5A CN109972639B (en) | 2019-05-12 | 2019-05-12 | River beach area embankment slope nested protective structure and construction method |
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| CN201910391395.5A CN109972639B (en) | 2019-05-12 | 2019-05-12 | River beach area embankment slope nested protective structure and construction method |
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| CN109972639A CN109972639A (en) | 2019-07-05 |
| CN109972639B true CN109972639B (en) | 2023-11-24 |
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| KR200226313Y1 (en) * | 2000-12-27 | 2001-06-15 | 김달환 | A block for vegetal shore protection |
| CN207176627U (en) * | 2017-09-14 | 2018-04-03 | 青岛埃克达斯贸易有限公司 | Large-scale earthing concrete block |
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| CN210134437U (en) * | 2019-05-12 | 2020-03-10 | 中交路桥建设有限公司 | River beach area embankment side slope nested formula protective structure |
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2019
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| KR200226313Y1 (en) * | 2000-12-27 | 2001-06-15 | 김달환 | A block for vegetal shore protection |
| CN207176627U (en) * | 2017-09-14 | 2018-04-03 | 青岛埃克达斯贸易有限公司 | Large-scale earthing concrete block |
| KR20190030530A (en) * | 2017-09-14 | 2019-03-22 | 산 조경 주식회사 | Structure for preventing erosion |
| CN208055993U (en) * | 2017-12-14 | 2018-11-06 | 深圳市华晟生态科技有限公司 | A kind of concrete segment for being laid with ecological revetment |
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