CN110306595B - Co-building structure of electric power pipe gallery and flood control wall and construction method thereof - Google Patents
Co-building structure of electric power pipe gallery and flood control wall and construction method thereof Download PDFInfo
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- CN110306595B CN110306595B CN201910628855.1A CN201910628855A CN110306595B CN 110306595 B CN110306595 B CN 110306595B CN 201910628855 A CN201910628855 A CN 201910628855A CN 110306595 B CN110306595 B CN 110306595B
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- 238000010276 construction Methods 0.000 title claims abstract description 71
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- 238000011065 in-situ storage Methods 0.000 claims description 3
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Classifications
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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
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
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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
- E02B3/16—Sealings or joints
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
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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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Abstract
The invention discloses a co-construction structure of an electric power pipe gallery and a flood control wall and a construction method thereof. The structure of the invention intensively utilizes the urban construction land, improves the construction safety and standard of the electric power pipe gallery, shortens the construction period, reduces the engineering investment and reduces the demolition of the embankment management room along the line.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to a co-building structure of an electric power pipe gallery and a flood wall and a construction method thereof.
Background
According to the project design specification of embankment (GB 50286-2013), the urban construction of embankment is often limited due to expensive land, difficult removal and occupation of land or difficult soil taking, and a flood wall can be adopted as a soil retaining and water retaining structure, the materials are mostly reinforced concrete structures, and the structural forms are mostly various structural forms such as gravity type, cantilever type, wall supporting type, reinforced type, empty box type and the like. In suburban areas, high-voltage transmission lines are mostly laid on one side of a road in the form of a ground pole tower, and along with the continuous development of cities, the original road width cannot meet traffic requirements, so that the road needs to be widened. When the road is widened, the original ground pole tower needs to be changed to meet the driving width requirement. Considering that the ground towers have great influence on the ground landscape and are combined with the operation and maintenance requirements, the underground comprehensive pipe rack is changed in a mode of laying underground comprehensive pipe racks.
According to the technical Specification of urban Utility tunnel engineering (GB 50838-2015), when the number of lines of the Utility tunnel is large and maintenance personnel need to enter and exit irregularly, the Utility tunnel should consider operation requirements such as ventilation, drainage, illumination and the like. The internal clear height of the standard section of the utility tunnel is comprehensively determined according to the types, specifications, quantity, installation requirements and the like of the accommodating pipelines, and is not suitable to be smaller than 2.4m. The internal clear width is comprehensively determined according to the types and the quantity of the contained pipelines, the requirements of transportation, installation, operation, enclosure and the like, and when the brackets or the pipelines are arranged on two sides, the overhaul width is not less than 1.0m, and the thickness of the upper soil covering needs to meet the anti-floating requirement.
Taking the reconstruction project of a river along a certain city as an example, according to the construction experience of similar projects in the past, if the flood control wall and the electric power pipe gallery are separately and independently constructed, the plane occupation width=the width of the retaining wall structure is 6.3m+the minimum horizontal clear distance is 1.0m+the structure width of the electric power pipe gallery is 3.4m=10.7m. The total construction period of the whole scheme is 8 months, and the investment cost is high. When laying according to the existing scheme, the floor space on the plane is wider and needs to be dismantled2500m along-line embankment management house 2 The removal cost is high. Therefore, the electric power pipe gallery and the flood wall are separately and independently constructed, separate excavation and separate construction are needed, the area of the electric power pipe gallery is large, the management rooms along the line embankment are needed to be dismantled, the construction period is long, and the engineering investment is large.
Disclosure of Invention
The invention aims to overcome the defects of the background technology, and provides a co-construction structure of an electric power pipe gallery and a flood wall, which utilizes urban construction land intensively, improves construction safety and standard of the electric power pipe gallery, shortens construction period, reduces engineering investment and reduces demolition of a embankment management room along a line.
In order to achieve the above purpose, the co-construction structure of the electric power pipe gallery and the flood control wall comprises an electric power pipe gallery body and the flood control wall, wherein the electric power pipe gallery body comprises a bottom plate, a first pipe gallery side wall, a second pipe gallery side wall and a pipe gallery top plate, the first pipe gallery side wall is arranged on one side of the width direction of the bottom plate, the flood control wall is arranged on the other side of the width direction of the bottom plate, the second pipe gallery side wall is arranged in the middle of the bottom plate, the pipe gallery top plate is arranged on the top surface between the first pipe gallery side wall and the second pipe gallery side wall, and hollow channels for a pipeline to pass through are formed by enclosing among the bottom plate, the first pipe gallery side wall, the pipe gallery top plate and the second pipe gallery side wall.
In the above technical scheme, a first waterproof layer is laid on the bottom surface of the bottom plate.
In the above technical scheme, the second waterproof layer has been laid respectively to the lateral surface of first piping lane side wall and second piping lane side wall.
In the above technical scheme, the top surface of piping lane roof has laid the third waterproof layer.
In the technical scheme, a clearance channel is reserved between the flood control wall and the side wall of the second pipe gallery.
In the above technical scheme, the bottom plate is positioned on the top surface of the clearance channel and is paved with a fourth waterproof layer.
In the above technical scheme, the bottom plate, the first pipe gallery side wall, the second pipe gallery side wall, the pipe gallery top plate and the flood control wall are provided with sedimentation expansion joints.
In the technical scheme, the height of the flood control wall is higher than the heights of the first pipe gallery side wall and the second pipe gallery side wall.
The invention also provides a construction method of the co-construction structure of the electric power pipe gallery and the flood control wall, which comprises the following steps:
1) Constructing a first steel sheet pile and a second steel sheet pile on two sides of a region to be constructed, wherein the first steel sheet pile and the second steel sheet pile are arranged in parallel;
2) Excavating a foundation pit between the first steel sheet pile and the second steel sheet pile, erecting a horizontal support at the top ends of the first steel sheet pile and the second steel sheet pile, and excavating the foundation pit to a designed elevation;
3) Constructing a cushion layer and a first waterproof layer on the bottom surface of a foundation pit, then casting a bottom plate on the top end of the first waterproof layer in a cast-in-place mode, constructing support changing at two sides of the bottom plate after the bottom plate is hardened to reach the design strength, and dismantling the horizontal support after the support changing is hardened to reach the design strength;
4) Casting a first pipe gallery side wall, a second pipe gallery side wall, a pipe gallery top plate and a flood control wall on the bottom plate in situ, and constructing a second waterproof layer, a third waterproof layer and a fourth waterproof layer in sequence after the structure is hardened to reach the design strength;
5) After the construction of the second waterproof layer, the third waterproof layer and the fourth waterproof layer is completed, backfilling clay in layers in the foundation pit, and compacting by layers until the design elevation is reached;
6) And (3) dismantling the first steel sheet pile and the second steel sheet pile, and immediately backfilling clay at the position where the first steel sheet pile and the second steel sheet pile are pulled out until the designed elevation is reached.
In the above technical solution, in the step 1), the bottom ends of the first steel sheet pile and the second steel sheet pile extend downward to the substrate layer, and the top ends of the first steel sheet pile and the second steel sheet pile are higher than the ground layer.
Compared with the prior art, the invention has the following advantages:
firstly, the electric power pipe gallery body and the flood control wall are co-built, the electric power pipe gallery and the flood control wall are overlapped on a plane on the basis of separate and independent construction of the flood control wall, and the electric power pipe gallery and the flood control wall form a co-built structure, so that urban construction land is utilized in an intensive manner, the safety and standard of electric power pipe gallery construction are improved, the laying of the electric power pipe gallery and the flood control wall is arranged in an overall mode, and land and time are saved.
The first waterproof layer is laid on the bottom surface of the bottom plate, the second waterproof layer is laid on the outer side surfaces of the first pipe gallery side wall and the second pipe gallery side wall respectively, the third waterproof layer is laid on the top surface of the pipe gallery top plate, the fourth waterproof layer is laid on the top surface of the bottom plate, which is located in a gap channel, so that the high requirement of the waterproof grade of the electric power pipe gallery structure is met, the waterproof grade is one grade, water seepage is avoided, no wet stain is formed on the surface of the structure, and the safety performance is high.
Thirdly, in the construction method, the electric power pipe gallery body and the foundation pit of the flood wall are excavated synchronously, the structures are constructed synchronously, the construction cost and the construction time are saved, and the urban construction land is utilized intensively.
Drawings
FIG. 1 is a schematic diagram of a co-construction of an electric utility tunnel and a flood wall according to the present invention;
FIG. 2 is a schematic cross-sectional view of a settlement expansion joint in the co-construction structure of the electric power piping lane and the flood wall;
FIG. 3 is a schematic cross-sectional view of a foundation pit support in a co-construction of the power tunnel and the flood wall according to the present invention;
FIG. 4 is a schematic cross-sectional view of the co-construction of the utility tunnel and flood wall of the present invention;
in the figure: 1-electric power pipe gallery body, 1.1-bottom plate, 1.2-first pipe gallery side wall, 1.3-second pipe gallery side wall, 1.4-pipe gallery roof, 2-flood wall, 3-hollow channel, 4-first waterproof layer, 5-second waterproof layer, 6-third waterproof layer, 7-clearance channel, 8-fourth waterproof layer, 9-subsidence expansion joint, 10.1-first steel sheet pile, 10.2-second steel sheet pile, 11-horizontal support, 12-cushion layer, 13-change support, 14-clay.
Detailed Description
The following describes the embodiments of the present invention in detail with reference to examples, but they are not to be construed as limiting the invention. While at the same time becoming clearer and more readily understood by way of illustration of the advantages of the present invention.
The invention discloses a co-construction structure of an electric power pipe gallery and a flood control wall, which is shown in fig. 1, and comprises an electric power pipe gallery body 1 and the flood control wall 2, wherein the electric power pipe gallery body 1 is of a rectangular frame structure and comprises a bottom plate 1.1, a first pipe gallery side wall 1.2, a second pipe gallery side wall 1.3 and a pipe gallery top plate 1.4, the first pipe gallery side wall 1.2 is arranged on one side of the bottom plate 1.1 in the width direction, the flood control wall 2 is arranged on the other side of the bottom plate 1.1 in the width direction, the second pipe gallery side wall 1.3 is arranged in the middle of the bottom plate 1.1, and the bottom plate 1.1 of the electric power pipe gallery body 1 is shared with the flood control wall 2. The pipe gallery top plate 1.4 is arranged on the top surface between the first pipe gallery side wall 1.2 and the second pipe gallery side wall 1.3, and a hollow channel 3 for a pipeline to pass through is formed by enclosing among the bottom plate 1.1, the first pipe gallery side wall 1.2, the pipe gallery top plate 1.4 and the second pipe gallery side wall 1.3. The electric power pipe gallery body 1 adopts wall concrete with the reference number of C35, the impermeability grade of P8 and the clearance width X height in the section of 2.8X3.0m. The thickness of the first pipe gallery side wall 1.2, the second pipe gallery side wall 1.3 and the pipe gallery top plate 1.4 is 0.3m, and the total width of the structure is 3.4m. The height of the wall top of the flood control wall 2 is 29.64m, the height of the wall bottom is 20.90mm, the label of wall concrete is C35, the impervious grade is P8, the wall bottom width is 6.3m, and the buttress top width is 0.6m.
In the above technical scheme, a first waterproof layer 4 is laid on the bottom surface of the bottom plate 1.1, and the first waterproof layer 4 is a waterproof layer made of asphalt-based polyester tire waterproof coiled materials. The outer side surfaces of the first pipe gallery side wall 1.2 and the second pipe gallery side wall 1.3 are respectively paved with a second waterproof layer 5, and the second waterproof layer 5 is a waterproof layer made of asphalt-based polyester tire waterproof coiled materials. A third waterproof layer 6 is laid on the top surface of the pipe gallery top plate 1.4, and the third waterproof layer 6 is a single-component polyurethane coating waterproof layer. And a gap channel 7 is reserved between the flood control wall 2 and the second pipe gallery side wall 1.3. A fourth waterproof layer 8 is laid on the top surface of the bottom plate 1.1, which is positioned on the gap channel 7, and the fourth waterproof layer 8 is a single-component polyurethane coating waterproof layer. Through setting up first waterproof layer 4, second waterproof layer 5, third waterproof layer 6 and fourth waterproof layer 8 to satisfy the high requirement of electric power piping lane structure waterproof grade, waterproof grade is the one-level, no infiltration, the no wet stain in structure surface.
As shown in FIG. 2, the bottom plate 1.1, the first pipe gallery side wall 1.2, the second pipe gallery side wall 1.3, the pipe gallery top plate 1.4 and the flood control wall 2 are provided with sedimentation expansion joints 9, in order to reduce the longitudinal uneven sedimentation of the structure, the electric power pipe gallery body 1 and the flood control wall 2 are provided with sedimentation expansion joints every 20 m-25 m longitudinally, the joint width is 2cm, and the sedimentation expansion joints 9 adopt steel edge rubber water stops and externally attached water stops.
In the above technical scheme, the height of the flood control wall 2 is higher than the heights of the first pipe gallery side wall 1.2 and the second pipe gallery side wall 1.3, and the flood control wall 2 mainly adopts the structure of self-waterproof.
The invention also provides a construction method of the co-construction structure of the electric power pipe gallery and the flood control wall, which comprises the following steps:
1) Constructing a first steel sheet pile 10.1 and a second steel sheet pile 10.2 on two sides of a region to be constructed, wherein the first steel sheet pile 10.1 and the second steel sheet pile 10.2 are arranged in parallel, the bottom ends of the first steel sheet pile 10.1 and the second steel sheet pile 10.2 extend downwards to a basal layer, and the top ends of the first steel sheet pile 10.1 and the second steel sheet pile 10.2 are higher than a ground layer, as shown in fig. 3;
2) Excavating a foundation pit between a first steel sheet pile 10.1 and a second steel sheet pile 10.2, erecting a horizontal support 11 at the top ends of the first steel sheet pile 10.1 and the second steel sheet pile 10.2, excavating the foundation pit to a designed elevation, wherein the excavation depth of the foundation pit is 5.34-6.40 m in the embodiment, the steel sheet pile and the steel support are adopted as supporting structures, the importance level of the foundation pit supporting engineering is one level, the maximum horizontal displacement of the steel sheet pile is not more than 30mm, underground water outside a pit mainly depends on the steel sheet pile and the water stop of an engagement section, and the upper layer water retention adopts open drainage in the pit during the excavation of the foundation pit;
3) Constructing a cushion layer 12 and a first waterproof layer 4 on the bottom surface of a foundation pit, then casting a bottom plate 1.1 on the top end of the first waterproof layer 4 in situ, constructing support changing 13 on two sides of the bottom plate 1.1 after the bottom plate 1.1 is hardened to reach the design strength, and removing the horizontal support 11 after the support changing 13 is hardened to reach the design strength;
4) The first pipe gallery side wall 1.2, the second pipe gallery side wall 1.3, the pipe gallery top plate 1.4 and the flood control wall 2 are cast in place on the bottom plate 1.1, and after the structure is hardened to reach the design strength, the second waterproof layer 5, the third waterproof layer 6 and the fourth waterproof layer 8 are sequentially constructed;
5) After the construction of the second waterproof layer 5, the third waterproof layer 6 and the fourth waterproof layer 8 is completed, clay 14 is backfilled in layers in the foundation pit and rolled compactly in layers until the design elevation is reached, as shown in fig. 4. The earthwork filling material requirements of two sides of the flood wall are as follows: the earthwork material is clay; the content of the organic mixture in the soil material is not more than 5% by weight, the content of the water-soluble salt is not more than 3% by weight, and the content of the clay is 15% -30%; the plastic index of the soil is as follows: the range IP of the embankment body and the outside of the embankment is 10-20, and the range IP of the pressing and soaking table is about 7-10; the allowable deviation between the water content of the filling earth material and the optimal water content is +/-3 percent; the compaction degree of the backfill is not less than 0.95.
When clay is backfilled on the surface of the flood wall structure, the construction meets the following requirements:
5.1 Before filling soil, cleaning the emulsion skin, dust, oil stain and other matters on the surface of the structure by using tools such as a steel wire brush;
5.2 When filling is started, the surface of the structure is required to be wetted on site, slurry coating, soil paving and tamping are carried out, the slurry coating height is consistent with the soil paving thickness, the slurry coating thickness is preferably 3-5 mm, the slurry coating is connected with the lower slurry coating, and the soil paving and tamping are carried out after the slurry is strictly forbidden to be dried and fixed. Clay with a plasticity index greater than 17 is adopted for preparing the slurry, and the concentration of the slurry can be 1:2.5-1:3.0 of the mass ratio of soil to water;
5.3 The compaction machine for filling is preferably various small-sized compactors, so that the compaction is carried out by pasting edges, and large-sized rolling machinery is not needed to be adopted so as not to damage the structure;
5.4 The filling soil on two sides of the flood control wall should rise uniformly, and the layer thickness of the soil layer is 15 cm-25 cm;
5.5 Slope surface of the seam of the embankment body, slope cutting is carried out by matching with the filled rising until the embankment body reaches a qualified layer, the water content of soil on a well-combined surface is controlled to be within +/-3% of the optimal water content, and the slope surface is paved with raw edges and compacted.
6) The first steel sheet pile 10.1 and the second steel sheet pile 10.2 are removed, and then immediately backfilling clay 14 at the position where the first steel sheet pile 10.1 and the second steel sheet pile 10.2 are pulled out until the designed elevation is reached.
The co-construction structure of the electric power pipe gallery and the flood control wall is suitable for synchronous construction of the flood control wall and other municipal pipe galleries when the ground is narrow, the construction safety requirement is high and the investment cost is strict. The invention intensively utilizes the urban construction land, shortens the construction period by 2 months, reduces the engineering investment by 120 ten thousand yuan, and reduces 2500m of demolishing the embankment management room along the line when being applied to the construction of a certain engineering, compared with the traditional construction scheme 2 。
Other not described in detail are known in the art.
Claims (9)
1. A construction method of a co-construction structure of an electric power pipe gallery and a flood control wall is characterized by comprising the following steps of: the utility model provides a co-construction structure of electric power piping lane and flood control wall includes electric power piping lane body (1) and flood control wall (2), electric power piping lane body (1) includes bottom plate (1.1), first piping lane side wall (1.2), second piping lane side wall (1.3) and piping lane roof (1.4), first piping lane side wall (1.2) set up in one side of bottom plate (1.1) width direction, flood control wall (2) set up in the opposite side of bottom plate (1.1) width direction, second piping lane side wall (1.3) set up in the middle part of bottom plate (1.1), top surface between piping lane roof (1.4) set up in first piping lane side wall (1.2) and second piping lane side wall (1.3), enclose between bottom plate (1.1), first piping lane side wall (1.2), piping lane roof (1.4), second piping lane side wall (1.3) and form and are used for supplying pipeline to pass hollow passageway (3).
The construction method comprises the following steps:
1) Constructing a first steel sheet pile (10.1) and a second steel sheet pile (10.2) on two sides of a region to be constructed, wherein the first steel sheet pile (10.1) and the second steel sheet pile (10.2) are arranged in parallel;
2) Excavating a foundation pit between the first steel sheet pile (10.1) and the second steel sheet pile (10.2), erecting a horizontal support (11) at the top ends of the first steel sheet pile (10.1) and the second steel sheet pile (10.2), and excavating the foundation pit to a designed elevation;
3) Constructing a cushion layer (12) and a first waterproof layer (4) on the bottom surface of a foundation pit, then casting a bottom plate (1.1) on the top end of the first waterproof layer (4) in situ, constructing support changing (13) on two sides of the bottom plate (1.1) after the bottom plate (1.1) is hardened to reach the design strength, and dismantling a horizontal support (11) after the support changing (13) is hardened to reach the design strength;
4) The first pipe gallery side wall (1.2), the second pipe gallery side wall (1.3), the pipe gallery top plate (1.4) and the flood control wall (2) are cast in place on the bottom plate (1.1), and after the structure is hardened to reach the design strength, the second waterproof layer (5), the third waterproof layer (6) and the fourth waterproof layer (8) are sequentially constructed;
5) After the construction of the second waterproof layer (5), the third waterproof layer (6) and the fourth waterproof layer (8) is finished, backfilling clay (14) in the foundation pit in layers and compacting in layers until the design elevation is reached;
6) And (3) dismantling the first steel sheet pile (10.1) and the second steel sheet pile (10.2), and immediately backfilling clay (14) at the position where the first steel sheet pile (10.1) and the second steel sheet pile (10.2) are pulled out until the design elevation is reached.
2. The construction method of the co-construction structure of the electric power pipe gallery and the flood wall according to claim 1, wherein the construction method comprises the following steps: the bottom surface of the bottom plate (1.1) is paved with a first waterproof layer (4).
3. The construction method of the co-construction structure of the electric power pipe gallery and the flood wall according to claim 2, wherein the construction method comprises the following steps: the outer side surfaces of the first pipe gallery side wall (1.2) and the second pipe gallery side wall (1.3) are respectively paved with a second waterproof layer (5).
4. A method of constructing a co-construction structure of an electric utility tunnel and a flood wall according to claim 3, wherein: the top surface of the pipe gallery top plate (1.4) is paved with a third waterproof layer (6).
5. The construction method of the co-construction structure of the electric power pipe gallery and the flood wall according to claim 1 or 2 or 3 or 4, wherein the construction method comprises the following steps: a gap channel (7) is reserved between the flood control wall (2) and the second pipe gallery side wall (1.3).
6. The construction method of the co-construction structure of the electric power pipe gallery and the flood wall according to claim 5, wherein the construction method comprises the following steps: a fourth waterproof layer (8) is laid on the top surface of the bottom plate (1.1) located in the gap channel (7).
7. The construction method of the co-construction structure of the electric power pipe gallery and the flood wall according to claim 6, wherein the construction method comprises the following steps: the novel anti-flood wall is characterized in that a settlement expansion joint (9) is arranged on the bottom plate (1.1), the first pipe gallery side wall (1.2), the second pipe gallery side wall (1.3), the pipe gallery top plate (1.4) and the flood control wall (2).
8. The construction method of the co-construction structure of the electric power pipe gallery and the flood wall according to claim 1, wherein the construction method comprises the following steps: the height of the flood control wall (2) is higher than the heights of the first pipe gallery side wall (1.2) and the second pipe gallery side wall (1.3).
9. The construction method of the co-construction structure of the electric power pipe gallery and the flood wall according to claim 1, wherein the construction method comprises the following steps: in the step 1), the bottom ends of the first steel sheet pile (10.1) and the second steel sheet pile (10.2) extend downwards to the basal layer, and the top ends of the first steel sheet pile (10.1) and the second steel sheet pile (10.2) are higher than the ground layer.
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| CN201910628855.1A CN110306595B (en) | 2019-07-12 | 2019-07-12 | Co-building structure of electric power pipe gallery and flood control wall and construction method thereof |
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| CN201910628855.1A CN110306595B (en) | 2019-07-12 | 2019-07-12 | Co-building structure of electric power pipe gallery and flood control wall and construction method thereof |
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| CN110306595B true CN110306595B (en) | 2024-01-05 |
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