On the basis of Loganathan formula,using method of orthogonal test,analyze the effect of grouting filling ratio,support pressure ratio,eccentricity ratio,buried deep of shield tunneling to surface settlement.Results of analysis can provide important instruction for construction of shield tunneling.%在Loganathan公式的基础上,利用正交试验方法,分析了盾构施工中注浆填充率、支护压力比、偏心率、盾构埋深4个因素对地表沉降的影响程度,分析结果可以为施工提供重要的指导。
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