Construction Technology of Anchor Cable Support Structure for Deep Excavation adjacent to Subway
With the acceleration of urbanization construction and the rapid development of underground rail lines,more high-rise buildings in urban areas suffer from narrower construction sites,high traffic volume outside the site,and complex underground tunnel line environments.It is crucial to achieve the quality and safety of deep excavation support construction adjacent to the subway.In response to the problem of ultimate bearing capacity of deep excavation slopes,a study is conducted on the methods to improve the pull-out bearing capacity of prestressed anchor cables through theoretical analysis and on-site experiments.The methods of on-site drilling equipment welding drill bits,strict control of water cement ratio,and switching to double casing construction technology are proposed to improve the one-time qualification rate of anchor cable pull-out bearing capacity.
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