River erosion segment pile-supported-type foam concrete lightweight embankment structure, and construction method thereof

Abstract

The invention relates to a river erosion segment pile-supported-type foam concrete lightweight embankment structure. According to the river erosion segment pile-supported-type foam concrete lightweight embankment structure, plain concrete piles are arranged on soft roadbed, the upper parts of plain concrete piles are provided with pile caps; the pile caps are connected with a bearing platform; a reinforced concrete protection panel is anchored in the bearing platform; a reinforced concrete protection panel vertical-type roadbed is adopted; the reinforced concrete protection panel is connected with a support pillar; the bottom of a fence pedestal is provided with anti-slip steel; a foam concrete stair groove is connected with a foam concrete roadbed successively; the lower part of the foam concrete roadbed is provided with a high stone content slag padding layer; the foam concrete stair groove is divided into a processing segment foam concrete groove, a transition segment foam concrete groove, and a connection segment foam concrete groove. The beneficial effects are that: problems such as bump at bridge-head can be solved because of the self-supporting performance, low elastic shock absorption performance, adjustable strength, and durability of foam concrete after curing, excellent technical economic benefit is achieved; integral lifting type sliding steel moulding plate construction is adopted in construction of the reinforced concrete protection panel, so that construction speed is accelerated.

Description

technical field [0001] The invention relates to a river scouring section embankment structure and a construction method, in particular to a river scouring section pile-supported foam concrete lightweight embankment structure and a construction method, belonging to the field of roads and bridges. Background technique [0002] The short-circuit subgrade (K29+522-K29+559) between the Jiangshan Bridge and the 1# bridge in the Taoshan service area of ​​the sixth tender section of the Southwest Line Project of Wenzhou Ring Expressway has been staked out. Most of the river course, meanwhile, the subgrade soft foundation treatment form of this section is prestressed pipe piles, and the prestressed pipe piles located in the right side slope cannot be constructed during the construction of pipe piles, so the treatment plan for the right side slope of this section of subgrade is designed. In addition, part of the abutment of the 1# bridge in the Taoshan service area is located in the r...

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Problems solved by technology

In addition, part of the abutment of the 1# bridge in the Taoshan service area is located in the river, and the scour in front of the abutment is serious. According to the actual measurement on the spot, the elevation of the lowest point of the river is about -1.5m, while the 1# abutment and the 0# abutment in the Taoshan service area The elevation of the lower part of the cap is 1.0m, and the elevation of the lower part of the 3# abutment cap is 0.5m. After construction according to the design drawings, the lower part of the cap will be washed away by the river water.

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