“…Spatial data mining is the process of human-computer interaction and a new areas of multidisciplinary and multiple based on the comprehensive utilization of statistical methods, pattern recognition, artificial intelligence, neural network, fuzzy mathematics, machine learning, expert systems and information technology, using a variety of numerical conditions , and mining the knowledge of space and related pre-processing, spatial sampling and data transformation [1,2] .Its main spatial data mining methods include a spatial analysis, statistical analysis, inductive learning method, cluster analysis, rough set, neural network method, gray theory method [3] . The original stress equilibrium field around the foundation affected destruction severely causes by the excavation of the pit, which brings soil stress to be released, likely to cause deformation of the supporting structure and surrounding soil of the surrounding ground, and serious harm of deformation and settlement to buildings and the underground pipelines [4] .…”