%A CHEN Ren-peng, LIU Yuan, LIU Sheng-xiang, TANG Lv-jun %T Characteristics of upward moving for lining during shield tunnelling construction %0 Journal Article %D 2014 %J Journal of ZheJiang University (Engineering Science) %R 10.3785/j.issn.1008-973X.2014.06.014 %P 1068-1074 %V 48 %N 6 %U {https://www.zjujournals.com/eng/CN/abstract/article_39088.shtml} %8 2014-07-04 %X

Based on the loading features of lining during shield tunnelling construction, a 3D model of the lining for the upward moving analysis considering the effects of shield action, grouting pressure, pore water pressure, and soil pressure has been established. By using the FEM software ABAQUS, the upward moving of lining, the deformation of lining ring joint and the internal forces of bolt were studied. The results show that the main deformation of joint from the first to fifth rings is dislocation, while the main deformation of joint from sixth to twelfth rings is tensile. It is found that reducing the distance between initial hardening location of the grouting and the shield tail is the most effective way for decreasing the upward moving of lining. When the thrust is small, increasing the thrust can be used to control the upward moving of lining. Increasing the pre-tightening force of bolts has little effect on the upward moving of lining.