A prefabricated fence built in conjunction with a flood control wall

Abstract

A prefabricated enclosure structure integrated with a flood barrier includes a foundation, upon which several short foundation columns are poured. A ground beam is poured between these short foundation columns, and reinforced concrete columns are poured atop the short foundation columns. The lower part of each reinforced concrete column is a rectangular column, and the flood barrier is poured between these rectangular columns. The upper part of the reinforced concrete columns consists of horizontally placed H-shaped columns. The grooves on both sides of each H-shaped column are prefabricated wall panel mounting grooves, into which several layers of prefabricated wall panels are fitted. The top surface of the uppermost prefabricated wall panel is provided with a wall cap. This wall cap is secured by a prefabricated column cap fitted onto the top of the reinforced concrete column. This invention solves the problems of conventional substation prefabricated enclosures and flood barriers requiring separate construction, resulting in large land occupation exceeding the land boundary.

Description

Technical Field

[0001] This utility model belongs to the field of power transmission and transformation technology, and relates to a prefabricated wall structure for substations, specifically a prefabricated wall structure that is built in conjunction with a flood barrier. Background Technology

[0002] Conventional substation prefabricated perimeter walls and flood barriers (when there is a need for flood control) are constructed separately. The flood barrier is located outside the prefabricated perimeter wall, and a maintenance passage of ≥5 meters is reserved between the perimeter wall and the flood barrier. Due to land use boundary or land use quota restrictions in urban areas and other areas, the construction of prefabricated perimeter walls and flood barriers separately cannot meet the land use boundary or policy requirements (such as basic farmland). Therefore, it is necessary to optimize the construction method of prefabricated perimeter walls and flood barriers for conventional substations. Utility Model Content

[0003] This utility model provides a prefabricated wall structure that can be built in conjunction with a flood barrier, which saves land and reduces engineering costs.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A prefabricated retaining wall structure integrated with a flood barrier includes a foundation, upon which several short foundation columns are poured, a ground beam is poured between the short foundation columns, and reinforced concrete columns are poured on top of the short foundation columns. The lower part of the reinforced concrete columns is a rectangular column, and a flood barrier is poured between the rectangular columns. The upper part of the reinforced concrete columns is a horizontally placed H-shaped column. The grooves on both sides of the H-shaped column are prefabricated wall panel installation grooves, into which several layers of prefabricated wall panels are fitted. The top surface of the uppermost prefabricated wall panel is provided with a retaining wall cap. The retaining wall cap is pressed and fixed by a prefabricated column cap fitted on the top of the reinforced concrete column.

[0006] The bottom surface of the foundation is provided with a pad layer.

[0007] This utility model can solve the problems of conventional substation prefabricated walls and flood barriers being constructed separately, resulting in large land occupation areas exceeding the land use boundary. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0009] Figure 2 This is a side view of the present invention;

[0010] Figure 3 This is a top view of the present invention. Detailed Implementation

[0011] The present invention will now be described in further detail with reference to the accompanying drawings.

[0012] Reference Figure 1 , Figure 2 , Figure 3 A prefabricated retaining wall structure integrated with a flood barrier includes a foundation 2, on which several short foundation columns 4 are poured, and ground beams 3 are poured between the short foundation columns 4. Reinforced concrete columns 6 are poured on the short foundation columns 4. The lower part of the reinforced concrete columns 6 is a rectangular column, and a flood barrier 5 is poured between the rectangular columns. The upper part of the reinforced concrete columns 6 is a horizontally placed H-shaped column. The grooves on both sides of the H-shaped column are prefabricated wall panel installation grooves 10, which are adapted to accommodate several layers of prefabricated wall panels 7. The top surface of the uppermost prefabricated wall panel 7 is provided with a retaining wall cap 8. The retaining wall cap 8 is pressed and fixed by a prefabricated column cap 9 fitted on the top of the reinforced concrete columns 6.

[0013] The bottom surface of the foundation 2 is provided with a cushion layer 1. The cushion layer 1 can isolate the bottom of the foundation 2 from direct contact with the soil, thereby reducing the risk of foundation corrosion, and at the same time provide a flat working surface for foundation construction, thereby reducing construction errors.

[0014] In the installation process of this utility model, the foundation 2, foundation short columns 4, ground beams 3, and reinforced concrete columns 6 are poured first. Simultaneously with the reinforced concrete columns 6, the flood retaining wall 5 is poured. The flood retaining wall 5 is anchored to the reinforced concrete columns 6, ground beams 3, and foundation short columns 4, forming a load-bearing structure with three sides fixed and one side cantilevered. After curing, the bottom precast wall panels are inserted into the H-shaped column slots, tightly against the top of the flood retaining wall. Then, according to the designed wall height, the precast wall panels are inserted sequentially until the designed elevation. The length of the precast wall panels is determined based on the distance between the reinforced concrete columns 6, and the width and number of precast wall panels are determined comprehensively based on the wall height, flood retaining wall height, and the manufacturer's production module. Finally, the precast wall capping and column capitals are installed. Finally, the precast wall capping 8 and precast column capitals 9 are installed.

[0015] This utility model combines the construction of a flood barrier wall and a prefabricated enclosure wall, saving land while meeting flood control requirements and allowing the prefabricated enclosure wall to separate the station area from the outside. Integrating the foundation of the enclosure wall and the flood barrier wall into one unit significantly reduces the use of foundation concrete materials while meeting flood control mechanical performance requirements, resulting in substantial economic benefits.

[0016] Taking a 750kV substation in Northwest China as an example, according to geological survey requirements, flood control walls with a height of no less than 0.8m need to be set up outside the perimeter wall in the excavation areas on the north, east, and south sides of the substation area, with a total length of approximately 845m. Conventional solutions often involve combining flood control walls constructed of masonry with prefabricated components, as the flood control walls are made of mortar-grouted masonry, while prefabricated perimeter walls are factory-prefabricated. Furthermore, according to operation and maintenance requirements, a passage of no less than 5m needs to be reserved between the perimeter wall and the flood control wall for daily maintenance and inspection after completion. Therefore, if the conventional solution is adopted, setting up a flood control wall within 5m of the perimeter wall would require approximately 4225 square meters of land. Due to limited land use around the perimeter wall in this project, separating the perimeter wall and flood control wall using the conventional solution would result in the land acquisition area exceeding the land boundary line. Therefore, this project is the first to adopt a combined flood barrier and prefabricated retaining wall design. Through design optimization, some prefabricated retaining wall components were cast in place, while the flood barrier was replaced with a reinforced concrete structure. This integrated design of the flood barrier and prefabricated structure means the lower flood barrier serves as both a flood control facility and a prefabricated retaining wall panel. By combining the prefabricated retaining wall and flood barrier, this project reduced land occupation by approximately 4,225 square meters and reduced land acquisition costs by approximately 1.2675 million yuan. Therefore, adopting this utility model effectively saves land, reduces project costs, and yields significant economic and social benefits.

Claims

1. A prefabricated retaining wall constructed in conjunction with a flood barrier, comprising a foundation, characterized in that, Several foundation short columns (4) are poured on the foundation (2), ground beams (3) are poured between the foundation short columns (4), and reinforced concrete columns (6) are poured on the foundation short columns (4). The lower part of the reinforced concrete column (6) is a rectangular column, and a flood retaining wall (5) is poured between the rectangular columns. The upper part of the reinforced concrete column (6) is a horizontally placed H-shaped column. The grooves on both sides of the H-shaped column are precast wall panel installation grooves (10), in which several layers of precast wall panels (7) are fitted. The top surface of the uppermost precast wall panel (7) is provided with a wall cap (8). The wall cap (8) is pressed and fixed by a precast column cap (9) fitted on the top of the reinforced concrete column (6).

2. The prefabricated retaining wall constructed in conjunction with a flood barrier according to claim 1, characterized in that, The bottom surface of the foundation (2) is provided with a pad layer (1).

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