A proposal of a method for predicting consolidation subsidence in small-scale buildings for shallow alluvial clay in the southeastern part of Saitama Prefecture and its verification examples

摘要

In a geotechnical investigation for detached houses, preliminary surveys and the Sweden weight sounding test are commonly used. When considering consolidation subsidence, it is preferable to perform a consolidation test to accurately grasp various consolidation constants. However, it is rarely carried out for economic reasons. Therefore in this paper, we evaluated the soil test results which conducted using shallow alluvial clay samples collected at several sites and examined the results of their comparison. And we presumed the physical and mechanical properties schematically by using their moisture content, and finally we proposed a method of predicting consolidation subsidence. Moreover, we considered its usefulness by comparing the predicted values with the measured values of consolidation subsidence in actual properties, then we revealed that the prediction method can obtain the same or more amount of subsidence as that obtained from consolidation test results.