Abstract：Research purposes : The scale of the displacement is essential to the successful construction of tunnel in city. The boring parameters should be decided rationally through making analyses of the stratum stress change, soil loss and deformation of pipe lining caused by shield construction for the purposes of establishing effective soil pressure balance, reducing the disturbance，stratum and stratum loss, and guaranteeing construction safety.
Research Conclusions:Taking the shield construction of bidding 19 of Line 4 of Beijing metro as an example, this paper analyzes the stratum stress change caused by the excavation and the displacement caused by stratum loss with the monitoring and measurement on the site. The results of analysis and measurement show the deformations can be controlled in the prescribed limit if the parameters of soil pressure, synchronic grouting and boring speed are decided rationally and an effective soil pressure balance is established.
汪玉华，李海民，王立军. 盾构法施工引起的地层变位分析[J]. 铁道工程学报, 2008, 25(11): 45-48.
WANG Yu-hua，LI Hai - min，WANG Li-jun. Analyses of the Displacement Caused by Shield Construction. 铁道工程学报, 2008, 25(11): 45-48.
2008, Vol. 25 
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