CN109056652B - River bank protection structure and construction method thereof - Google Patents
River bank protection structure and construction method thereof Download PDFInfo
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- CN109056652B CN109056652B CN201811059972.2A CN201811059972A CN109056652B CN 109056652 B CN109056652 B CN 109056652B CN 201811059972 A CN201811059972 A CN 201811059972A CN 109056652 B CN109056652 B CN 109056652B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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Abstract
The invention discloses a river bank protection structure and a construction method thereof. The construction method comprises the following steps: a. excavating a foundation pit; b. measuring and setting out the foundation pit; c. processing an arc panel; d. installing a single-group cambered surface shaping device; e. paving a cambered surface shaping device; f. pouring a concrete layer; g. and arranging a stone masonry layer. The arc-shaped panel is fixedly installed through the arc-shaped steel sleeve, and can be used as a supporting surface for stacking the gravel layer without being influenced by a foundation; according to the invention, independent spaces are formed between the positioning partition plates and the arc-shaped steel sleeves, the positioning partition plates support the gravels to prevent the gravels from rolling off, and meanwhile, the laying height of the gravels is based on the top surfaces of the positioning partition plates, so that the filled gravels can be piled into a designed arc-shaped state, and further, the finally poured concrete layer can reach the designed arc-shaped top surface.
Description
Technical Field
The invention belongs to the technical field of river regulation engineering, and particularly relates to a river bank protection structure and a construction method thereof.
Background
Ecological restoration means stopping artificial interference on an ecological system to reduce load pressure, and evolving in an orderly direction depending on self-regulation capacity and self-organization capacity of the ecological system, or gradually restoring a damaged ecological system or developing the ecological system in a virtuous circle direction by utilizing the self-restoration capacity of the ecological system and assisting artificial measures; mainly aims at the restoration and reconstruction work of a natural ecosystem destroyed under the influence of natural mutation and human activities, and restores the original appearance of the ecosystem.
Ecological river restoration is one of the fields of ecological restoration, and ecological river restoration is currently carried out by adopting ecological revetments. The ecological river bank protection refers to a river bank protection form for protecting the river slope by combining plants or plants with civil engineering; the river course slope protection device can prevent river bank collapse, and also has a river course slope protection form which enables river water and soil to mutually permeate, enhances the self-purification capacity of the river course and has a certain natural landscape effect. The ecological river bank protection integrates flood control effect, ecological effect, landscape effect and self-cleaning effect, not only is a great progress of bank protection engineering construction, but also becomes the mainstream of bank protection engineering construction in the future. In the prior art, when the river bank protection is constructed, stone is firstly thrown and filled at a foundation pit, then non-woven fabrics are laid on the top layer of the stone, then gravel is backfilled on the non-woven fabrics, and then concrete is poured. When the concrete for the face protection is poured, in order to realize the arc shape of the top surface, the top surface of the cast and filled stone is generally piled into an arc state, but when the concrete is actually cast and filled, the stone is easily influenced by the soil foundation to roll off, so that the stone cannot be piled into the designed arc state, and the finally poured concrete cannot reach the designed arc top surface.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provides a river bank protection structure and a construction method thereof, so that a finally poured concrete layer can reach a designed arc-shaped top surface, and the construction process is not influenced by a foundation.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a river course shore protection structure which characterized in that: comprises a soil backfill layer, at least three groups of cambered surface shaping devices, a concrete layer and a stone masonry layer, wherein two adjacent groups of cambered surface shaping devices are fixedly connected, each cambered surface shaping device comprises a base and a cambered surface plate, the top surface of the base is fixedly connected with a steel pipe, the top surface of the steel pipe is fixedly connected with a cambered steel sleeve, the cambered surface plates are fixedly connected in the cambered steel sleeves, the soil backfill layer is arranged below the arc-shaped panel, the top surface of the base is fixedly connected with a drain pipe, the drain pipe is buried in the soil backfill layer, the welding of arc steel bushing department has the location baffle, and the bottom surface of location baffle is hugged closely with the top surface of arc panel, and the arc panel is equipped with the through-hole, and geotechnological cloth has been laid to the top surface of arc panel, and geotechnological cloth is located the top of through-hole, is filled with the gravel layer on the geotechnological cloth, and the top surface on gravel layer flushes with the top surface of location baffle, and concrete layer pours on the top surface on gravel layer and the top surface of location baffle.
Further, the U-shaped plate is arranged on the arc-shaped panel in a penetrating mode, and the U-shaped plate is tightly clamped with the drain pipe. The dead weight through the U template is spacing to the drain pipe, prevents that the drain pipe skew from setting up the position.
Furthermore, the top surface welding of base has the fixture block, and the fixture block is fixed with the steel pipe welding, realizes that the steel pipe is fixed in on the top surface of base.
Further, the arc-shaped steel sleeve is fixedly welded with the steel pipe, and the support rod is welded between the arc-shaped steel sleeve and the steel pipe, so that the arc-shaped steel sleeve is fixed on the top surface of the steel pipe.
Furthermore, the arc panel is provided with a reference line, and the positioning partition plate and the reference line are arranged correspondingly to each other, so that the positioning partition plate is uniformly distributed on the arc panel.
Further, two horizontal adjacent base welded fastening, four angles departments of arc panel are equipped with the connector, are equipped with the connection billet between two adjacent connectors, connect the billet and pass through the iron nail and be fixed in the connector, realize fixed connection between two sets of adjacent cambered surface setting devices.
A construction method of a river bank protection structure is characterized by comprising the following steps:
a. excavating a foundation pit, and leveling the surface of the foundation pit;
b. measuring and setting out the foundation pit, and planning out a construction area of the river bank protection structure;
c. processing an arc panel: selecting an arc-shaped panel with corresponding length and radian according to the size of a construction area of a river bank protection structure, cutting and perforating the arc-shaped panel to form through holes with uniform shapes and sizes, marking a reference line on the surface of the arc-shaped panel by using a water color pen, wherein the setting position of the reference line corresponds to the preset position of a positioning partition plate;
d. installation of single-group cambered surface shaping device
(1) The base is installed at fixed points: pre-burying bases in a foundation pit according to the size of a construction area of a river bank protection structure, wherein the length between the two bases is equal to that of the construction area of the river bank protection structure, arranging a drain pipe between the bases, and the upper end of the drain pipe is communicated with a drainage system on a bank;
(2) installing an arc-shaped steel sleeve: fixing a steel pipe on the top surface of the base, then cutting the part of the steel pipe extending out of the base, and vertically fixing the arc-shaped steel sleeve on the steel pipe;
(3) installing an arc panel: firstly, transversely introducing the arc-shaped panel into the arc-shaped steel sleeve, respectively measuring the distance between the two sides of the arc-shaped panel and the arc-shaped steel sleeve, ensuring that the distance between the two sides of the arc-shaped panel and the arc-shaped steel sleeve is the same, then simultaneously applying force to the top surface and the bottom surface of the arc-shaped steel sleeve by adopting a clamp to deform the arc-shaped steel sleeve, tightly clamping the arc-shaped panel in the arc-shaped steel sleeve, screwing a self-tapping screw into the bottom of the arc-shaped steel sleeve, and screwing the self-tapping screw into the arc-shaped panel;
(4) installing a positioning partition plate: according to the position of the surface reference line of the arc-shaped panel, the positioning partition plates are clamped on the arc-shaped steel sleeve one by one, then the positioning partition plates correspond to the reference line, and meanwhile the positioning partition plates and the arc-shaped steel sleeve are welded and fixed;
(5) laying geotextile: the top surface of the arc-shaped panel is divided into two laying areas by the positioning partition plate and the arc-shaped steel sleeve, the two laying areas are measured respectively, then the geotextile is cut, each laying area corresponds to the geotextile with corresponding specification, the geotextile is provided with 2-3cm allowance compared with the corresponding laying area, then the geotextile is laid in the corresponding laying area, the remaining edge of the geotextile is folded, the remaining edge of the geotextile is clung to the side surface of the positioning partition plate, the remaining edge of the geotextile is clung to the side surface of the arc-shaped steel sleeve, and then the geotextile exceeding the arc-shaped panel is cut off;
e. laying an arc surface shaping device: placing the cambered surface shaping devices into the foundation pit one by one, placing the cambered surface shaping devices from the middle to two sides, fixedly connecting two adjacent groups of cambered surface shaping devices, plugging a plastic bag at the lower end of a drain pipe, backfilling soil between the cambered surface panel and the foundation pit to form a soil backfill layer, and compacting the soil backfill layer;
f. pouring a concrete layer: filling a sandstone layer on the geotextile, wherein the top surface of the sandstone layer is flush with the top surface of the positioning partition plate, spraying water on the sandstone layer integrally, and then pouring a concrete layer;
g. setting a stone masonry layer: after the concrete layer is poured, stones are piled up at the position, close to the river, of the whole structure, concrete is poured, and the outermost side of the stone building layer is an inclined plane.
Furthermore, in the step d, in the step (2), in the specific operation of fixing the steel pipe on the top surface of the base, the fixture blocks are welded on the top surface of the base, the fixture blocks for fixing the same steel pipe are positioned on the same straight line, and the opening directions of the fixture blocks are kept consistent.
Further, in the step d (2), in the concrete operation of vertically fixing the arc-shaped steel sleeve to the steel pipe, the arc-shaped steel sleeve is vertically welded to the top surface of the steel pipe, the support rod is scribed and cut according to the distance between the arc-shaped steel sleeve and the steel pipe, and then the cut support rod is welded between the arc-shaped steel sleeve and the steel pipe.
Furthermore, the concrete pouring layer in the step f is made of mortar cement with the grade of M20, deformation joints are arranged every 5M, and the width of each deformation joint is 10 mm.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. in the construction process, the drainage pipe is arranged between the bases, and the upper end of the drainage pipe is communicated with the shore drainage system, so that rainwater collected by the shore drainage system is introduced into a river from the drainage pipe, and the phenomenon of water accumulation on the shore is prevented.
2. The arc-shaped panel is fixedly installed through the arc-shaped steel sleeve, and can be used as a supporting surface for stacking the gravel layer without being influenced by a foundation; according to the invention, the positioning partition plates are clamped on the arc-shaped steel sleeves one by one, then the positioning partition plates correspond to the datum lines, and meanwhile, the positioning partition plates and the arc-shaped steel sleeves are welded and fixed, so that separate spaces are formed between the positioning partition plates and the arc-shaped steel sleeves, the positioning partition plates support gravels to prevent the gravels from rolling off, and meanwhile, the laying height of the gravels is based on the top surfaces of the positioning partition plates, so that the filled gravel layers can be piled into a designed arc state, and further, the finally poured concrete layer can reach the designed arc top surface.
3. According to the invention, the geotextile is laid in the laying area between the positioning partition plate and the arc-shaped steel sleeve, so that the gravel layer is arranged on the geotextile, the geotextile can prevent the gravel from losing, and meanwhile, the geotextile has good water permeability, when the gravel layer is sprinkled, water can flow out from the through hole of the arc-shaped panel, so that the concrete layer on the gravel layer is ensured to be uniform and stable, and no crack occurs. When the geotextile is specifically laid, each laying area corresponds to the geotextile with the corresponding specification, the geotextile has 2-3cm allowance compared with the corresponding laying area, then the geotextile is laid in the corresponding laying area, the remaining edges of the geotextile are folded, the remaining edges of the geotextile are clung to the side surface of the positioning partition plate, and the remaining edges of the geotextile are clung to the side surface of the arc-shaped steel sleeve, so that the geotextile can be prevented from wrinkling.
4. When the opposite arc surface shaping devices are laid, the arc surface shaping devices are placed in the foundation pit one by one from the middle to the two sides, the two adjacent arc surface shaping devices are fixedly connected, the integral stability is improved, and meanwhile, the arc surface shaping device in the middle is used as a standard to prevent the integral structure from being transversely arranged and inclined.
5. According to the invention, after the arc surface shaping device is laid, soil is backfilled between the arc-shaped panel and the foundation pit to form a soil backfill layer, and then the soil backfill layer is compacted, so that the soil backfill layer plays a supporting role for the whole device, and the structure is prevented from deforming.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
fig. 1 is a schematic structural diagram of a river bank protection structure according to the present invention;
FIG. 2 is a schematic view of the present invention in a fixed-point installation on a base;
FIG. 3 is a schematic view of the present invention in the configuration of installation of the curved steel sleeve;
FIG. 4 is a schematic view of the present invention in the configuration of an arcuate panel installation;
FIG. 5 is a schematic view of the present invention in a position for installation of the partition;
FIG. 6 is a schematic view of the structure of the curved panel of the present invention;
FIG. 7 is a schematic structural view of the fixed connection between two adjacent sets of arc surface shaping devices according to the present invention.
Detailed Description
As shown in fig. 1 to 7, the river bank protection structure of the present invention includes a soil backfill layer 1, at least three sets of arc surface shaping devices 2, a concrete layer 3 and a stone masonry layer 18, and two adjacent sets of arc surface shaping devices 2 are fixedly connected.
Cambered surface setting device 2 includes base 4 and arc panel 5, and the top surface fixedly connected with steel pipe 6 of base 4, the top surface welding of base 4 has fixture block 13, and fixture block 13 and steel pipe 6 welded fastening realize on steel pipe 6 is fixed in the top surface of base 4. The top surface fixedly connected with arc steel bushing 7 of steel pipe 6, arc panel 5 fixed connection is in arc steel bushing 7, and soil backfill layer 1 locates the below of arc panel 5. The arc-shaped steel sleeve 7 is fixedly welded with the steel pipe 6, and the support rod 14 is welded between the arc-shaped steel sleeve 7 and the steel pipe 6, so that the arc-shaped steel sleeve 7 is fixed on the top surface of the steel pipe 6. The top surface of the base 4 is fixedly connected with a drain pipe 8, and the drain pipe 8 is buried in the soil backfill layer 1. The U-shaped plate 12 is arranged on the arc-shaped panel 5 in a penetrating mode, and the U-shaped plate 12 clamps the drain pipe 8. Carry on spacingly through the dead weight of U template 12 to drain pipe 8, prevent that drain pipe 8 skew from setting up the position. The arc-shaped steel sleeve 7 is welded with a positioning baffle plate 9, and the bottom surface of the positioning baffle plate 9 is tightly attached to the top surface of the arc-shaped panel 5. The arc-shaped panel 5 is provided with a reference line 15, and the positioning partition plates 9 and the reference line 15 are arranged corresponding to each other, so that the positioning partition plates 9 are uniformly distributed on the arc-shaped panel 5. The arc panel 5 is provided with a through hole 10, and geotextile is laid on the top surface of the arc panel 5 and is arranged above the through hole 10. The geotextile is filled with a gravel layer 11, the top surface of the gravel layer 11 is flush with the top surface of the positioning partition plate 9, and the concrete layer 3 is poured on the top surface of the gravel layer 11 and the top surface of the positioning partition plate 9.
Two horizontal adjacent bases 4 welded fastening, four angles departments of arc panel 5 are equipped with connector 16, are equipped with between two adjacent connectors 16 and connect billet 17, connect billet 17 to be fixed in connector 16 through the iron nail, realize fixed connection between two adjacent sets of cambered surface setting device 2.
A construction method of a river bank protection structure comprises the following steps:
a. and excavating the foundation pit and leveling the surface of the foundation pit.
b. And measuring and setting out the foundation pit, and planning out a construction area of the river bank protection structure.
c. Processing the arc panel 5: according to the size of the river channel revetment structure construction area, the arc-shaped panel 5 with the corresponding length and radian is selected, then the arc-shaped panel 5 is cut and perforated, and through holes 10 with uniform shapes and sizes are formed. And then marking a reference line 15 on the surface of the arc-shaped panel 5 by using a water color pen, wherein the setting position of the reference line 15 corresponds to the preset position of the positioning partition plate 9.
d. Installation of single-group cambered surface shaping device 2
(1) The base 4 is fixed-point installed: according to the size of the construction area of the river bank protection structure, the bases 4 are embedded in the foundation pit, and the length between the two bases 4 is in accordance with the length of the construction area of the river bank protection structure. And a drain pipe 8 is arranged between the bases 4, and the upper end of the drain pipe 8 is communicated with a water drainage system on the shore.
(2) Installing the arc-shaped steel sleeve 7: the steel pipe 6 is fixed on the top surface of the base 4, the part of the steel pipe 6 extending out of the base 4 is cut, and then the arc-shaped steel sleeve 7 is vertically fixed on the steel pipe 6.
In the specific operation of fixing the steel pipe 6 on the top surface of the base 4, the fixture blocks 13 are welded on the top surface of the base 4, the fixture blocks 13 for fixing the same steel pipe 6 are positioned on the same straight line, and the opening directions of the fixture blocks 13 are kept consistent.
In the specific operation of vertically fixing the arc-shaped steel sleeve 7 to the steel pipe 6, the arc-shaped steel sleeve 7 is vertically welded to the top surface of the steel pipe 6, the support rod 14 is scribed and cut according to the distance between the arc-shaped steel sleeve 7 and the steel pipe 6, and then the cut support rod 14 is welded between the arc-shaped steel sleeve 7 and the steel pipe 6.
(3) Installing the arc panel 5: firstly, the arc-shaped panel 5 is transversely led into the arc-shaped steel sleeve 7, and then the distance between the two sides of the arc-shaped panel 5 and the arc-shaped steel sleeve 7 is respectively measured, so that the distance between the two sides of the arc-shaped panel 5 and the arc-shaped steel sleeve 7 is ensured to be the same. And then, applying force to the top surface and the bottom surface of the arc-shaped steel sleeve 7 by adopting a clamp simultaneously to deform the arc-shaped steel sleeve 7, and clamping the arc-shaped panel 5 in the arc-shaped steel sleeve 7. And screwing a self-tapping screw into the bottom of the arc-shaped steel sleeve 7 and screwing the self-tapping screw into the arc-shaped panel 5.
(4) And (3) installing a positioning partition plate 9: according to the position of the surface reference line 15 of the arc-shaped panel 5, the positioning partition plates 9 are clamped into the arc-shaped steel sleeve 7 one by one, then the positioning partition plates 9 correspond to the reference line 15, and meanwhile the positioning partition plates 9 and the arc-shaped steel sleeve 7 are welded and fixed.
(5) Laying geotextile: the top surface of the arc-shaped panel 5 is divided into two laying areas by the positioning partition plate 9 and the arc-shaped steel sleeve 7, the two laying areas are measured respectively, then the geotextile is cut, each laying area corresponds to geotextile with corresponding specification, and 2-3cm allowance is set for comparing the geotextile with the corresponding laying area. And then, the geotextile is laid in the corresponding laying area, the remaining edge of the geotextile is folded, the remaining edge of the geotextile is tightly attached to the side surface of the positioning partition plate 9, the remaining edge of the geotextile is tightly attached to the side surface of the arc-shaped steel sleeve 7, and then the geotextile exceeding the arc-shaped panel 5 is cut off.
e. Paving the cambered surface shaping device 2: and placing the cambered surface shaping devices 2 into the foundation pit one by one from the middle to the two sides, and fixedly connecting the two adjacent groups of cambered surface shaping devices 2. Then, a plastic bag is plugged into the lower end of the drain pipe 8, soil is backfilled between the arc-shaped panel 5 and the foundation pit to form a soil backfill layer 1, and then the soil backfill layer 1 is compacted.
f. And (3) pouring a concrete layer: filling a sand stone layer 11 on the geotextile, wherein the top surface of the sand stone layer 11 is flush with the top surface of the positioning partition plate 9, then integrally spraying water on the sand stone layer 11, then pouring a concrete layer 3, wherein the concrete layer 3 adopts mortar cement with the grade of M20, a deformation joint is arranged every 5M, and the width of the joint is 10 mm.
g. The stone masonry layer 18 is provided with: after the concrete layer 3 is poured, stones are piled up at the position of the whole structure close to the river channel, concrete is poured, and the outermost side of the stone building layer 18 is an inclined plane.
1. In the construction process, the drain pipes 8 are arranged between the bases 4, and the upper ends of the drain pipes 8 are communicated with the shore drainage system, so that rainwater collected by the shore drainage system is introduced into a river from the drain pipes 8, and the phenomenon of water accumulation on the shore is prevented.
2. The arc-shaped panel 5 is fixedly installed through the arc-shaped steel sleeve 7, so that the arc-shaped panel 5 can be used as a supporting surface for piling up the gravel layer 11 and is not influenced by a foundation; according to the invention, the positioning partition plates 9 are clamped on the arc-shaped steel sleeves 7 one by one, the positioning partition plates 9 correspond to the datum lines 15, and meanwhile, the positioning partition plates 9 and the arc-shaped steel sleeves 7 are welded and fixed, so that separate spaces are formed between the positioning partition plates 9 and the arc-shaped steel sleeves 7, the positioning partition plates 9 support gravels to prevent the gravels from rolling off, and meanwhile, the laying height of the gravels is based on the top surfaces of the positioning partition plates 9, so that the filled gravel layers 11 can be piled into a designed arc state, and further, the finally poured concrete layer 3 can reach the designed arc top surface.
3. According to the invention, the geotextile is laid in the laying area between the positioning partition plate 9 and the arc-shaped steel sleeve 7, so that the gravel layer 11 is arranged on the geotextile, the geotextile can prevent the gravel from losing, and meanwhile, the geotextile has good water permeability, when the gravel layer 11 is sprinkled, water can flow out from the through hole 10 of the arc-shaped panel 5, and the concrete layer 3 on the gravel layer 11 is ensured to be uniform and stable without cracks. When the geotextile is specifically laid, each laying area corresponds to the geotextile with the corresponding specification, the geotextile has 2-3cm allowance compared with the corresponding laying area, then the geotextile is laid in the corresponding laying area, the remaining edge of the geotextile is folded, the remaining edge of the geotextile is clung to the side surface of the positioning partition plate 9, and the remaining edge of the geotextile is clung to the side surface of the arc-shaped steel sleeve 7, so that the geotextile can be prevented from wrinkling.
4. When the opposite arc surface shaping devices 2 are laid, the arc surface shaping devices 2 are placed in a foundation pit one by one from the middle to the two sides, the two adjacent arc surface shaping devices 2 are fixedly connected, the integral stability is improved, and meanwhile, the arc surface shaping device 2 in the middle is used as a standard to prevent the integral structure from being transversely arranged and inclined.
5. According to the invention, after the arc surface shaping device 2 is laid, soil is backfilled between the arc surface panel 5 and the foundation pit to form the soil backfill layer 1, then the soil backfill layer 1 is compacted, and the soil backfill layer 1 plays a supporting role for the whole device to prevent the structure from deforming.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.
Claims (8)
1. The utility model provides a river course shore protection structure which characterized in that: the soil backfilling device comprises a soil backfilling layer, at least three groups of cambered surface shaping devices, a concrete layer and a stone masonry layer, wherein two adjacent groups of cambered surface shaping devices are fixedly connected, each cambered surface shaping device comprises a base and an arc-shaped panel, the top surface of the base is fixedly connected with a steel pipe, the top surface of each steel pipe is fixedly connected with an arc-shaped steel sleeve, each arc-shaped panel is fixedly connected into the corresponding arc-shaped steel sleeve, the soil backfilling layer is arranged below the corresponding arc-shaped panel, the top surface of the base is fixedly connected with a drain pipe, the drain pipe is embedded into the soil backfilling layer, a positioning partition plate is welded at the position of each arc-shaped steel sleeve, the bottom surface of each positioning partition plate is tightly attached to the top surface of the corresponding arc-shaped panel, the arc-shaped panel is provided with a through hole, geotextile is laid on the top surface of the corresponding arc-shaped panel, and a sandstone layer is filled on the geotextile, the top surface on gravel layer with the top surface of location baffle flushes, concrete layer pour in gravel layer's top surface with on the top surface of location baffle, the U template is worn to be equipped with by the cambered plate, U template chucking the drain pipe, the arc steel bushing with steel pipe welded fastening, the arc steel bushing with the welding has the bracing piece between the steel pipe.
2. The river bank protection structure of claim 1, wherein: the top surface welding of base has the fixture block, the fixture block with steel pipe welded fastening.
3. The river bank protection structure of claim 1, wherein: the arc-shaped panel is provided with a datum line, and the positioning partition plate and the datum line are arranged correspondingly.
4. The river bank protection structure of claim 1, wherein: the bases are transversely adjacent to each other and are welded and fixed, connectors are arranged at four corners of the arc-shaped panel, connecting wood blocks are arranged between the adjacent connectors, and the connecting wood blocks are fixed in the connectors through iron nails.
5. A construction method of the river bank protection structure based on claim 1, characterized by comprising the following steps:
a. excavating a foundation pit, and leveling the surface of the foundation pit;
b. measuring and setting out the foundation pit, and planning out a construction area of the river bank protection structure;
c. processing an arc panel: selecting an arc-shaped panel with corresponding length and radian according to the size of a construction area of a river bank protection structure, cutting and perforating the arc-shaped panel to form through holes with uniform shapes and sizes, marking a reference line on the surface of the arc-shaped panel by using a water color pen, wherein the setting position of the reference line corresponds to the preset position of a positioning partition plate;
d. installation of single-group cambered surface shaping device
(1) The base is installed at fixed points: pre-burying bases in a foundation pit according to the size of a construction area of a river bank protection structure, wherein the length between the two bases is equal to that of the construction area of the river bank protection structure, arranging a drain pipe between the bases, and the upper end of the drain pipe is communicated with a drainage system on a bank;
(2) installing an arc-shaped steel sleeve: fixing a steel pipe on the top surface of the base, then cutting the part of the steel pipe extending out of the base, and vertically fixing the arc-shaped steel sleeve on the steel pipe;
(3) installing an arc panel: firstly, transversely introducing the arc-shaped panel into the arc-shaped steel sleeve, respectively measuring the distance between the two sides of the arc-shaped panel and the arc-shaped steel sleeve, ensuring that the distance between the two sides of the arc-shaped panel and the arc-shaped steel sleeve is the same, then simultaneously applying force to the top surface and the bottom surface of the arc-shaped steel sleeve by adopting a clamp to deform the arc-shaped steel sleeve, tightly clamping the arc-shaped panel in the arc-shaped steel sleeve, screwing a self-tapping screw into the bottom of the arc-shaped steel sleeve, and screwing the self-tapping screw into the arc-shaped panel;
(4) installing a positioning partition plate: according to the position of the surface reference line of the arc-shaped panel, the positioning partition plates are clamped on the arc-shaped steel sleeve one by one, then the positioning partition plates correspond to the reference line, and meanwhile the positioning partition plates and the arc-shaped steel sleeve are welded and fixed;
(5) laying geotextile: the top surface of the arc-shaped panel is divided into two laying areas by the positioning partition plate and the arc-shaped steel sleeve, the two laying areas are measured respectively, then the geotextile is cut, each laying area corresponds to the geotextile with corresponding specification, the geotextile is provided with 2-3cm allowance compared with the corresponding laying area, then the geotextile is laid in the corresponding laying area, the remaining edge of the geotextile is folded, the remaining edge of the geotextile is clung to the side surface of the positioning partition plate, the remaining edge of the geotextile is clung to the side surface of the arc-shaped steel sleeve, and then the geotextile exceeding the arc-shaped panel is cut off;
e. laying an arc surface shaping device: placing the cambered surface shaping devices into the foundation pit one by one from the middle to the two sides, fixedly connecting two adjacent groups of cambered surface shaping devices, plugging a plastic bag at the lower end of the drain pipe, backfilling soil between the cambered surface panel and the foundation pit to form a soil backfill layer, and then filling the soil with soil
Compacting the soil backfill layer;
f. pouring a concrete layer: filling a sandstone layer on the geotextile, wherein the top surface of the sandstone layer is flush with the top surface of the positioning partition plate, spraying water on the sandstone layer integrally, and then pouring a concrete layer;
g. setting a stone masonry layer: after the concrete layer is poured, stones are piled up at the position, close to the river, of the whole structure, concrete is poured, and the outermost side of the stone building layer is an inclined plane.
6. The construction method of the river bank protection structure according to claim 5, wherein: in the step d, in the step (2), in the specific operation of fixing the steel pipes on the top surface of the base, the fixture blocks are welded on the top surface of the base, the fixture blocks for fixing the same steel pipe are positioned on the same straight line, and the opening directions of the fixture blocks are kept consistent.
7. The construction method of the river bank protection structure according to claim 5, wherein: and (d) in the step (2), vertically fixing the arc-shaped steel sleeve to the steel pipe, vertically welding the arc-shaped steel sleeve to the top surface of the steel pipe, scribing and cutting the support rod according to the distance between the arc-shaped steel sleeve and the steel pipe, and welding the cut support rod between the arc-shaped steel sleeve and the steel pipe.
8. The construction method of the river bank protection structure according to claim 5, wherein: and f, adopting mortar cement with the grade of M20 as a concrete pouring layer, setting deformation joints every 5M, and setting the width of the joints to be 10 mm.
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| CN106930234A (en) * | 2017-03-21 | 2017-07-07 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of High-cold regions earth and rockfill dam protective slope structure and its construction method |
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