Comprehensive Technique for Constructing Large Underground Engineering by Inverse Construction Method

摘要

In large underground engineering constructing by inverse construction method, the key construction technique is how to work pile columns into shape by concreting at one time, how to replace expansion and contraction joint with post-pored band to prevent structure from cracking, penetrating and leaking effectively, and how to excavate to ensure the stability of surrounding ground in fine silt sand ground. In this paper, the comprehensive technique is introduced in inverse construction method of large underground commercial street. The construction technique of inverse construction method is improved through engineering practice. Therefore, valuable experience will be available for reference to similar underground projects.