(1. Wuhan Polytechnic University， Wuhan， Hubei 430023， China;2. China Railway 19th Bureau Group Co. Ltd，
Beijing 100176，China;3. Purdue University，West Lafayette，Indiana 47906，U. S. A.)
Abstract：Abstract : Research purposes ： The factors of the ground surface settlements due to metro construction are difficult to calculate based on the general theory， and the monitoring becomes one of the most important methods for engineering decisions. It is necessary to explore the spatial distribution and statistical characteristics based on the monitoring data，
which could be helpful to the other similar engineering both in theory and in practice.
Research conclusions:( 1 ) The ground may upheave to 10-25 mm during the mixing pile execution in metro construction. (2) The ground settlements were significantly during the metro station excavation. The maximum
settlements occurred on the section of 0. 3 ~ 0. 9 times of the foundation pit depth，and were perpendicular to the long
edge of the excavation. The results are some similar to the other researches，but seem to be a little scatter. (3) The
position interval of the settlement maximums is [0.50, 0.73] of the excavation depth according to the statistical characteristic
of the monitoring data，and the mean，the median，and the mean square error is 0.65，0.64 and 0.11 correspondingly. The
area of the maximums should be monitored and assessed with particular attention. (4) The settlement maximums of the complex shape section may deviate from the statistical interval, and the construction in the area should be investigated and
optimized carefully in the schemes. (5) The results are helpful for the design and construction in metro engineering.
李炜明1,柳雨叶1,石旭东2,丁敬文2,吴政2,姜艺3. 地铁施工地表沉降的空间规律与统计特征研究[J]. 铁道工程学报, 2017, 34(3): 74-79.
LI Wei - ming1，LIU Yu - ye1，SHI Xu - dong2，DING Jing - wen2，WU Zheng2，JIANG Yi3. Research on the Spatial Distribution and Statistical Characteristic of Ground Settlements in Metro Station Construction. Journal of Railway Engineering Society, 2017, 34(3): 74-79.
2017, Vol. 34 
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