Abstract：It is inevitable for the slurry shield to under-pass the embankment in construction of under-river tunnels in urban areas. For the safety of both the embankment structure and construction，resources of risks when slurry shield under-passing the embankment are analyzed in detail，and their causes，impacts and mitigation measures are also studied accordingly. The case history of risk control for slurry shield under-passing the embankment in Hangzhou Qingchun road cross-river tunnel in China confirmed the rationality and feasibility of the suggested risk control measures. Through optimization of slurry shield driving parameters，avoidance of adverse external conditions，in-time monitoring，and setting of detailed emergency countermeasures，some of the risks encountered during slurry shield under-passing the embankment can be reduced or mitigated so as to insure safety of the embankment and construction.
娄一青，曹良珍，王志军，等. 降雨入渗对边坡稳定性影响分析[J]. 水力发电，2008，34(5)：19-22.(LOU Yiqing，CAO Liangzhen，WANG Zhijun，et al. Study on influence of rainfall infiltration on slope stability[J]. Water Power，2008，34(5)：19-22.(in Chinese))
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2011, Vol. 30 
