Study on the Uneven Settlement of Beijing Plain Area

doi:10.13474/j.cnki.11-2246.2018.0290

Abstract

Abstract:

In this paper,the results of PS-InSAR monitoring in Beijing plain (2003—2009) combined with GIS spatial analysis is used to analyze the differential settlement.Based on the comprehensive analysis of geological structure data,water source data,road network data and uneven settlement data,this paper studies the factors of uneven settlement in Beijing plain.The study shows that the uneven settlement mainly caused by geological structure,especially the difference in thickness and lithology of the Quaternary sediments.A large amount of continuous extraction of groundwater and the increase of the ground dynamic load make the water level of the compressible layer decrease passively,which leads to persistent stress transfer and large area of uneven settlement.

Key words: PS-InSAR, Beijing plain area, subsidence, groundwater

CLC Number:

P258

ZHENG Jiarong, GONG Huili, LI Qingyuan, CHEN Beibei. Study on the Uneven Settlement of Beijing Plain Area[J]. 测绘通报, 2018, 0(9): 108-111.

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Study on the Uneven Settlement of Beijing Plain Area

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