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| STUDY ON THE INFLUENCE OF SUBWAY BY SHIELD TUNNELING ON ENVIRONMENT |
| Huang Runqiu, Qi Guoqing |
| (National Laboralory ofGeological Harard and Engineering Geological Environment Protection, Chengdu University ofTchnology, Chengdu 610059 China) |
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Abstract influence of subway by shield tunneling on environment, such as surface subsidence, subsidiary stress dueto shield tunneling,drainage and waterproof,and the influence of earthquake on shield tunnel, are studied,according to existing documentation and construction experience. Based on this,the viewpoint is presented that the main reason of generating surface subsidence is that construction disturbs surounding soil in the process of shield tunneling,and another reason is the drainage groundwater. Theeffect of earthquake on tunnel by shield driven is discussed on the aspect of earthquake response of the tunnel by shield driven in clay soil and identification of earthquake caused groundliquefying in sandy soil around tunnel byshield driven.
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Received: 31 March 2003
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2003, Vol. 22 
