岩土工程学报2011，Vol.33Issue(2)：281-284,4.
室内基床系数测试方法研究
Test methods for laboratory foundation bed coefficient
陈定安 1茅加峰2
作者信息
- 1. 武汉市湖北中冶建设工程检测有限公司,湖北,武汉,430080
- 2. 南京土壤仪器有限公司,江苏,南京,210014
- 折叠
摘要
Abstract
The research achievements of the foundation bed coefficient are introduced based on simulated load tests.The test device which has the same stress path features and the drainage boundary conditions is designed and produced as the in-situ K30 load tests.According to the classical consolidation theory, formula for the iso-consolidation degree controlled method and the standard foundation bed coefficient is derived.The theoretical relationship between the deformation modulus and the compression modulus is introduced to derive the formula for estimating the standard foundation coefficient between the compressive modulus and the static lateral pressure coefficient.By comparing laboratory and in-situ tests and test verification, the pressure plate with a diameter of 5 cm is adopted to simulate in-situ stress state of in-situ specimens.It is feasible to carry out load tests on foundation coefficient of subgrade soil.The formula k = 4.25(1 - k02 )ES can be employed to calculate the foundation bed coefficient of the normally consolidated saturated clayey soil.关键词
基床系数/等应变/等同结度/K30/模拟载荷分类
建筑与水利引用本文复制引用
陈定安,茅加峰..室内基床系数测试方法研究[J].岩土工程学报,2011,33(2):281-284,4.
