防水
结算(财务)
结构工程
岩土工程
工程类
接头(建筑物)
流离失所(心理学)
变形(气象学)
地质学
材料科学
复合材料
土木工程
万维网
付款
心理治疗师
计算机科学
心理学
作者
Zhan Wang,Lizhong Wang,Lingling Li,Wang Jing-chang
标识
DOI:10.1016/j.tust.2013.10.007
摘要
To simulate the failure mechanism of tunnel segmental lining joints and longitudinal bolts under uneven longitudinal ground settlement, a numerical model with 3D lining rings and bolts was established. The loads were divided into two parts: the soil pressure around the tunnel just after construction and a displacement loading according to field measurements of uneven longitudinal ground settlement. The interactions between the lining tenons, bolts and their holes, were determined. The results indicated that the deformation of the circumferential joints consisted of opening and dislocation, but the dislocation was dominant. The progressive failure of bolts and waterproofing measures were also revealed. The evaluation of structural integrity of circumferential joint and the mitigate measures were proposed in order to ensure the operational safety of a metro tunnel.
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