Construction method of combined supporting and retaining structure
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The invention discloses a construction method of a combined supporting and retaining structure, and relates to the technical field of civil construction. The method includes the steps of surveying and setting-out, mountain slope treatment, manufacturing of prefabricated reinforced concrete breast boards, foundation surface cleaning and replacement filling, construction of a cast-in-place concrete foundation, construction of a cantilever type structure, construction of pre-stressed anchor cables, masonry installation of the prefabricated reinforced concrete breast boards, and construction of a wrapped face reinforced soil structure and a covering layer. By using the vertical pre-stressed anchor cables, the workload can be reduced, the construction period can be shortened, the anti-overturning capacity and anti-slippage capacity of the combined supporting and retaining structure can be improved, and the overall stability and anti-lateral-deformation capacity of the whole combined supporting and retaining structure can be improved; by adopting the prefabricated reinforced concrete breast boards, the construction progress can be accelerated, and the project quality can be ensured; by using the wrapped face reinforced soil structure, the strength and integrity of a filling part can be improved, and the lateral soil pressure on the panel of the supporting and retaining structure can be reduced. By means of the method, the overall stability is improved, occupation of land is reduced, construction is simplified, and the construction cost is reduced; the method is especially suitable for roadbed construction in mountainous and hilly regions.