Analysis on Construction Technology of New Pile-wall Occluding Circular Foundation Pit——Taking the Dangerous Bridge Reconstruction Project of Dangyang Heyong Bridge of S253 Yuansong Line as an Example
Taking the dangerous bridge reconstruction project of Dangyang Heyong Bridge of S253 Yuan Line as an example,this paper analyzes the construction technology of the new pile-wall biting circular foundation pit support.Through the subsequent foundation pit deformation detection,the maximum lateral displacement of the continuous wall is 15.1 mm,the maximum lateral displacement of the rotary spray pile is 10.5 mm,and the maximum settlement of the surrounding area is 25.4 mm.
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