Assessment of structural sensitivity of Kerman City deposits

Abstract

This research was performed to determine the efficiency effect of sedimentary environment of Kerman City area on soil structure by<br />comparing natural and reconstituted consolidation curves. In this regard, four different criteria such as sensitivity strength, stress<br />sensitivity, Schmertman criteria and the result of the uniaxial compression test were used. The base of these criteria is to compare the<br />results of natural and undisturbed soil consolidation tests. The position of undrained shear strength of Kerman City soils in Iv-Su space<br />was located on the left side of the intrinsic strength line and this confirms that the stress sensitivity of soils is less than the unit.<br />Therefore, the soils in the city subzone are mostly over consolidated, and cementation and chemical bonds have not developed. The<br />swelling sensitivity of fine grained soils based on Schmertman criteria are often less than 2 or slightly larger than 2.5 indicating that the<br />soils of Kerman City subzones have underdeveloped swelling sensitivity due to poor cementation.