Abstract：Researches of the settlement caused by tunnel construction mostly focus on the settlement at the ground surface at present. However，the increasing number of the failure cases of underground structures during tunneling reveals the importance of estimating the subsurface settlement. In order to solve this problem，sand of Yangtze River was filled in a self-developed model box with adjustable bottom on the box to simulate the tunneling effect. During the testing process，settlements were measured at different depths to investigate the subsurface movements caused by tunneling in sand. Test results show that the relationship of the maximum settlement at a given depth，the depth and the maximum bottom plate lowering distance is linear；the volume of settlement trough is not constant，it increases with the increasing depth. And it is only half of the volume of stratum loss；the settlement trough width parameter i is only related to the depth，and has no obvious relationship with the maximum settlement at the same depth.
王 非，缪林昌，王正兴，王冉冉，周贻鑫. 砂性土中隧道施工引起地层沉降分布特征的模型试验研究[J]. 岩石力学与工程学报, 2014, 33(sl): 3327-3332.
WANG Fei，MIAO Linchang，WANG Zhengxing，WANG Ranran，ZHOU Yixin. STUDY OF DISTRIBUTION CHARACTERISTICS OF SUBSURFACE SETTLEMENT CAUSED BY TUNNEL CONSTRUCTION IN SANDY SOIL WITH MODEL TEST. , 2014, 33(sl): 3327-3332.
魏 纲，吴华君，陈春来. 顶管施工土体损失引起的沉降预测[J]. 岩土力学，2007，28(2)：359-363.(WEI Gang，WU Huajun，CHEN Chunlai. Prediction of settlement induced by ground loss during pipe jacking construction[J]. Rock and Soil Mechanics，2007，28(2)：359-363.(in Chinese))
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2014, Vol. 33 
