Arched retaining wall structure of a river course and its construction method

Abstract

The invention discloses a riverway arch retaining wall structure and belongs to the field of traffic and marine traffic engineering. The riverway arch retaining wall structure comprises buttress piers and a retaining wall, the retaining wall is formed by side-by-side connection of a plurality of circular arc wall bodies, two ends of each circular arc wall body are fixed on the buttress piers, circular arc protruding portions point to the earth filling direction, the protruding side of the retaining wall is filled with earth to form an earth-filled layer, and the space between the retaining wall and the earth-filled layer is filled with a rubble layer. Tie bars are arranged in the earth-filled layer horizontally, and one end of each tie bar is connected with the corresponding buttress pier while the other end is fixed through a fixing column. Plastic blind ditches are horizontally arranged in the earth-filled layer layer by layer. The outer side of each plastic blind ditch is coated with geotextile. The invention further discloses a construction method of the retaining wall structure. By the structure, deformation resistance and overall stability of the retaining wall are enhanced greatly, water in filled earth on the rear side of the retaining wall can be drained quickly, earth pressure on the retaining wall is lowered, and the construction method is simple in construction technology and remarkable in economic benefit.

Description

technical field [0001] The invention belongs to the field of traffic and waterway engineering, and in particular relates to a channel arch retaining wall structure and a construction method thereof. Background technique [0002] In the process of river channel regulation and new construction, it is inevitable to build retaining structures on both sides of the river to support the embankment fill and meet the requirements of navigation and embankment width. The common types of retaining walls are gravity retaining wall, counterweight retaining wall, cantilever retaining wall, buttress retaining wall, pile plate retaining wall, reinforced earth retaining wall and so on. In these structures, the main structure of the retaining soil is generally a flat plate structure, which fails to give full play to the performance of the reinforced concrete material with high compressive strength and low tensile strength. [0003] The following methods are used in the prior art: 1) The const...

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Problems solved by technology

[0003] The following methods are used in the prior art: 1) The construction method of the panel retaining wall, the panels are all plane structures in the design and construction process, and the compressive performance of the reinforced concrete material cannot be well exerted; 2) The lower cantilever type is adopted The retaining wall and the upper part are composited by geotechnical ecological bags, and vertical reinforcements are set at the interface between the fill and the original soil to reduce the earth pressure behind the retaining wall and enhance the overall stability of the structure , the structure is complex, the construction is difficult, and there is no connection between the vertical reinforcement body and the retaining wall, so that the anti-sliding stability of the vertical reinforcement body cannot be well exerted

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