长春新开河流域粘性土地基承载力研究

Study on Bearing Capacity of Changchun Xinkai River Basin of Clay Foundation

长春新开河流域粘性土是近年来工程建设中新遇到的土层.将其视为一般粘性土,按经验方法确定的承载力偏大,影响工程安全.本文采用载荷试验原位测试和室内土工试验方法确定长春新开河流域粘性土的地基承载力.研究了地基承载力特征值与天然孔隙比、液性指数和压缩模量的关系,总结出根据室内土工试验指标压缩模量确定长春新开河流域粘性土地基承载力的经验公式,为今后岩土工程勘察工作提供参考.

Changchun Xinkai river basin soil is encountered in recent years in the construction of soil. Be regarded as common soil, determined by the empirical method of bearing capacity is big, affect the engineering safety. This paper uses the method of test and laboratory soil test load test in situ determination of bearing capacity of Chang- chun Xinkai river basin of cohesive soilfoundation. The value and natural void ratio, liquid index and compression modulus of foundation bearing capacity characteristics of relationship. Summarized according to the experience for- mula to determine bearing capacity of Changchun Xinkai river basin soil compression modulus of soil testindex, pro- vide the reference for the geotechnical engineering survey.