大屯中心区地面沉降危险性评价

综合考虑地表斜率,地表曲率因素,并通过叠加双重因素进行地面沉降危险性评价.运用了Sufer和ArcGIS软件对大屯中心区地面沉降危险性进行评价,在评价过程中发挥了Sufer强大的插值功能-克里金插值功能和ArcGIS良好的图像处理功能,由评价结果可获得地面沉降对砖石结构建筑物破坏等级以及各个等级破坏的面积,应根据不同破坏程度的要求处理破坏问题.同时,为控制地面沉降,应控制其主要因素,即控制超采地下水。

The fatalness assessment about land subsidence in the center of Datun area

Overall considering the surface slope,surface curvature,and overlaying these double factors,the land substance risk in the center of Datun area was evaluated based on Sufer and ArcGIS software.During the assessment,the powerful interpolation function,Kriging interpolation,and good image processing function of ArcGIS had played an important role.The damage grades and area of land substance to masonry structures buildings were obtained.It indicated that the main factor,excessive extraction of groundwater,shou...