The Analysis Of Shallow Foundation Bearing Capacity In The Main Urban Area Of Handan City Based On GIS

The foundation bearing capacity is an important research topic in the study ofsoil mechanics. The test depth of Handan city within the scope of is0.8~3.0m，there are251groups of shallow foundation bearing capacity test data for analysis andresearch. Finally it is received the Handan urban distribution characteristics andregularity of shallow foundation bearing capacity. The results of this article researchare for the subgrade， square， and natural shallow foundation construction projects，such as building of two floors on the value of subgrade bearing capacity， there is acertain reference value， and to lay the foundation for the establishment of regionalfoundation prospecting criteria.This paper mainly makes the following work：1. Collection of shallow foundation bearing capacity test data in the study area，generally including shallow plate load test， static cone penetration test， standardpenetration test and laboratory soil test data. And sorting data， make all effectivedata into a table showing the shallow foundation bearing capacity.2. With the MAPGIS software for shallow foundation bearing capacity value， itis made that contour map and three-dimensional contour image (in the shallow plateload test data and test data mainly)， the partitions are based on that.3. Analysis of test data in each partition. According to the experimental datacollected by， partition of static sounding of the shallow foundation soil (ps)，standardpenetration test blow counts (N)，as well as the physical and mechanical index (e，w)and the characteristic value of subgrade bearing capacity fak(the relationship betweenthe regression analysis. Combined with the actual distribution of the strata in theregion， puts forward relevant experience formula of characteristic value of subgradebearing capacity.