Stability Analysis and Research of the Underground Air-Raid Shelter under the Proposed Site

Abstract

There existed an underground air-raid shelter group under the foundation of the proposed site, whose stability analysis and evaluation was the key problem on the safe use of the proposed site. Based on the engineering geological characteristics of the proposed site, the stability of the underground air-raid shelter under the present situation was evaluated and analyzed by the Pullman's Theory (unloading arch theory), meanwhile, the variety rule of the stress and strain of the underground air-raid shelter under the future situation was studied by the using of numerical simulation of Flac3d. Combined with the actual investigation, the results of analysis and study show that: the underground air-raid shelter is not stable under the present and future situation of the site, therefore, the relative measures must be taken.