Control Standard of Ground Surface Settlement Induced by Running Tunnel Construction in Beijing Subway
Ground settlement, especially the ground surface settlement induced by subway tunneling is an important issue. However, there is no an agreed standard for controlling ground surface settlement during the subway construction at present. The control standard of ground surface settlement was studied using the methods of statistical analysis and numerical simulation based on the running tunnel in Beijing subway. According to the research results, a conclusion could be obtained that the ground surface settlement can be controlled within 40 mm using the general construction measures in Beijing subway running tunnel construction, and furthermore, the settlement of 40mm will not damage the existing nearby structures and utilities including neighboring buildings, bridges and pipelines, etc. So the control valve of 40 mm is rational, which can be adopted as the control standard of ground surface settlement induced by running tunnel construction in Beijing subway.
Huixuan Zhang, Ye Han, Fuxiao Chen and Jiuba Wen
C. P. Zhang et al., "Control Standard of Ground Surface Settlement Induced by Running Tunnel Construction in Beijing Subway", Applied Mechanics and Materials, Vols. 117-119, pp. 721-725, 2012