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Huang Runqiu Chen Shangqiao(Chengdu Institute of Technology, Chengdu 610059)Huang Jiayu He Ping(Chongqing Institute for Design, Chongqing 630054)  
n this paper, the factors affecting the satety tickness of roof of shallow underground excavation in Chongqing City are analysied with referencing previous data. The mechanism for failure under the effct of interaction between the foundation and the undergraund excavation, the effect of every factors on the safety tickness of roof and the variability law are studied by means of FEM numerical simulation. The safety thickness of roof forecasting model is obtained by stepwise regression analysis.
【Fund】: 国家杰出青年科学基金
【CateGory Index】: TD322.1,TU457
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