摘要
结合轨道交通项目，对基床系数的试验方法和试验结果准确性进行探讨，针对不同试验方法得出基床系数差异性的特点，从机理到实际应用以及对试验结果的科学修正等问题均进行阐述。文中列举了各地区地铁轻轨项目关于基床系数的试验方法、试验经验数值，便于工程实施借鉴。基床系数试验应优先选择平板载荷试验及现场墨。试验进行，但考虑场地实施、样品原状性等要求，选用三轴法操作过程模拟现场试验应是今后发展的方向。
Combined with rail traffic projects, the test method and result accuracy of foundation bed coefficient are discussed. Based on the characteristics of foundation bed coefficient difference obtained by different test methods, the mechanism, practical application and scientific correction of test result are all described. This paper lists the test methods and empirical values concerning foundation bed coefficient of underground and light rail projects in various regions for a reference in actual engineering. Flat load test and site K30 test shall be preferred for foundation bed coefficient test, but considering the requests such as site implementation and sample original state, simulate site test with tri-axial operating process represents the orientation of development in the future .
出处
《路基工程》
2010年第B04期47-51,共5页
Subgrade Engineering
关键词
基床系数
三轴
固结
K30试验
foundation bed coefficient
tri-axis
concretion
K30 test
