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Regional land subsidence simulation in Su-Xi-Chang area and Shanghai City, China by Xiaoqing Shi; Jichun Wu; Shujun Ye; Yun Zhang; Yuqun Xue; Zixin Wei; Qinfen Li; Jun Yu is a Engineering article available to read on EtoBox.

What is Regional land subsidence simulation in Su-Xi-Chang area and Shanghai City, China about?

Su-Xi-Chang area and Shanghai City, located in the south of Yangtze Delta, China, has subsided due to groundwater overpumping. Because of the regional scale of the groundwater exploitation, cone of depression and land subsidence at present, Su-Xi-Chang area and Shanghai City are treated as a single area for land subsidence study to avoid the uncertainty of boundary condition due to the regionalism. The characteristics of aquifer system compaction are complex because of the difference in the types, compositions and structures of the soils that the hydrostratigraphic units are composed of, and in the histories of groundwater level change the hydrostratigraphic units have experienced. Considering the fact that different hydrostratigraphic units have different kinds of deformation and that an identical unit may also present different deformation characteristics, such as elasticity, elasto-plasticity, and visco-elasto-plasticity, at different sites of the cone of depression or in different periods, corresponding constitutive laws have been adopted. This avoids the shortcomings of the previous research that the same constitutive law was adopted in all the hydrostratigraphic units during

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Author

Xiaoqing Shi; Jichun Wu; Shujun Ye; Yun Zhang; Yuqun Xue; Zixin Wei; Qinfen Li; Jun Yu

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0013-7952)

Published

2008

Language

EN

Field

Engineering (Physical Sciences)