Articles | Volume 372
https://doi.org/10.5194/piahs-372-231-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/piahs-372-231-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
12 Nov 2015
Study of the deformation mechanism of the Gaoliying ground fissure
G. Cheng
CORRESPONDING AUTHOR
China Institute of Geo-environment Monitoring, Beijing 100081, China
H. Wang
China Institute of Geo-environment Monitoring, Beijing 100081, China
Y. Luo
Beijing Institute of Geo-environment Monitoring, Beijing 100195, China
H. Guo
China Institute of Geo-environment Monitoring, Beijing 100081, China
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Multi-layer aquifer systems with deep confined aquifers and thick compressible clay layers are the key geological conditions responsible for the development of land subsidence in the North China Plain. Several groundwater regulation scenarios were designed and simulated with a groundwater model, and assessed using a multi-criteria fuzzy pattern recognition model. This approach is proven to be very useful for scientific analysis of sustainable development and utilization of groundwater resources.
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The level morphological characteristics of ground fissures are influenced by the regional stress field. The morphology of ground fissures in Songzhuang were reshaped by the concentration of tensile stress and developed by the horizontal movement of a soil mass caused by groundwater overdraft. The Gaoliying ground fissures inherit the morphological characteristics of the Huangzhuang–Gaoliying fault, with differential settlement in a small area accelerating the development of Gaoliying fissures.
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Short summary
The results indicated that The surface location of Gaoliying fissure is controlled by the underlying normal fault activity, and over pumping further exacerbates development of the ground fissure; when the groundwater level declines, obvious differential settlement occurs at both sides of the ground fissure. The fault activity contributes about 28-39 percent, and the groundwater contributes about 61-72 percent to the deformation of the ground fissure, respectively.
The results indicated that The surface location of Gaoliying fissure is controlled by the...
