Abstract：Research purposes: A large area of soil is disturbed during shield under-passed the building-sensitive region, but it is very easily induced by ground settlement, lead to quicksand, and piping, brings a big challenge to the facestability, operation security, and three-dimensional construction. The current research of ground settlementmainly concentrates on the small shield, and considering different definition about strata loss. How to use thestrata loss to research the relationship of strata loss and ground settlement during shield construction is still one of the most sophisticated problems needed to be solved urgently. This paper, taking a super-large-diameter shield under-passed the building-sensitive region in a complex environment as an example, the corresponding strata loss of ground settlement of 2D and 3D, and its corresponding ground settlement are calculated under the condition of strata loss from conventional to extreme. The relationship among shield construction, strata loss and ground settlement are discussed.
Research conclusions: (1) The maximum ground settlement for every increased 0.1% of strata loss was increased 3-4 mm under the condition of strata loss 5 %. (2) The final settlement for every increased 0.5 % of average strata loss of shield tail was increased 8mm. (3) By the common influence of strata loss of shield head and shield tail, the total final settlement was formed.(4)It is proposed that development of a set of methods for shield control by using ground settlementin dicators of strata loss control rate.(5)This paper provides the valuable reference to the study on the ground settlement , disaster prevention, tunnel design, and construction.
王建秀，邹宝平，付慧仙，田普卓，朱雁飞. 盾构地层损失与对应地面沉降计算的对比分析[J]. 铁道工程学报, 2013, 30(9): 72-77.
WANG Jian-xiu, ZOU Bao-ping, FU Hui-xian, TIAN Pu-zhuo, ZHU Yan-fei. Comparative Study of Strata Loss and Its Corresponding Ground Settlement Induced by Shield Construction. 铁道工程学报, 2013, 30(9): 72-77.
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2013, Vol. 30 
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