文献类型：期刊文献

英文题名：Double exponential prediction model for surface subsidence distribution due to foundation pit excavation

作者：Li, Na[1]; Wang, Wei[1]; Zhang, Fang[1]; Chen, Zhang[1]

机构：[1] Department of Building Engineering, Shaoxing University, Shaoxing, China

年份：2015

卷号：7

期号：9

起止页码：429

外文期刊名：Metallurgical and Mining Industry

收录：EI(收录号：20154701578898)、Scopus(收录号：2-s2.0-84947224312)

语种：英文

外文关键词：Excavation - Mathematical models

外文摘要：Subsidence of the surrounding surface after foundation pit excavation plays an important role in ensuring the engineering safety. The mathematical model for surface subsidence distribution was studied. The basic rules and mathematical distribution characteristics of surface subsidence were revealed and the traditional mathematical models were analyzed. Double exponential model (DE model) for surface subsidence distribution was proposed. By the fitting contrast of measured data between two project cases, it shows that DE Model is in good agreement with the measured data with the average fitting error of 5% and 13%. Compared with the traditional composite linear-exponential model, the fitting errors of the DE model are reduced by 34% and 16%, respectively.