Citation

Chen S, Liu D, Tian B, Xu H. China Saf. Sci. J. 2020; 30(1): 42-47.

Copyright

(Copyright © 2020, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2020.01.007

PMID

unavailable

Abstract

In order to prevent destruction of pier foundation caused by flood scouring which will further affect bearing capacity and operation safety, a set of technical method combining supplementary pile foundation and foundation reinforcement method was proposed based on theoretical analysis and field test of flood scour disease of a heavy load railway pier. Then, a step-by-step implementation plan was drafted and applied in practical projects. The results show that static indexes, such as bearing capacity of single pile, displacement of pier top and earth pressure at pile side, are improved obviously after reinforcement, transverse vibration amplitude of bridge pier and span structure is markedly lower, and lateral vibration frequency of pier increases 5 times. Foundation stiffness and bearing capacity of pier and abutment are improved significantly. © 2019 China Safety Science Journal

Language: zh