EVALUATION STUDY ON IMPACT OF LAND SUBSIDENCE DUE TO GROUNDWATER WITHDRAWAL AND BUILDING LOAD ON CONSTRUCTION PROJECT

Land subsidence is a typical environment geological problem. It seriously affects the development of social economy and the process of urbanization. This article based on the key construction project of Golden International in Zibo, Shandong Province. To evaluate the impact of land subsidence on the project, the Quaternary formation, which is about 40meters thick and located at the 0.6km2 proposed project area, was taken as the research object. According to the engineering geological characteristics, the formation was divided into four compression layers. Considering respectively groundwater exploiting in ZhangXi water source field and different building loads, the amounts of land subsidence in the area of the construction project were calculated and the trends were predicted based on one-dimensional consolidation theory and geotechnical consolidation approach. The result showed that land subsidence due to groundwater withdrawal and building load had less impact on the construction project. The study helps making a basis decision for the construction project, and also provides a reference for constructions where are affected by land subsidence. Besides, the study of land subsidence due to groundwater withdrawal and building load in Zibo city of Shandong provice will guide the planning and construction of the city, it can benefit it sciencely, rapidly, sustainable developing.