摘要
静载荷试验是目前检验地基承载力应用最广的一种方法,且被公认为试验结果最准确、最可靠的原位测试方法,但因现行规范中对试验采用的载荷板尺寸的规定以及确定承载力所对应的变形值的规定,均为一个较为广泛的范围值,导致相同条件下因检测单位选用的荷载板尺寸和判断标准的不同,最终得出差异较大的地基承载力结论,更有甚者因此引发诸多纠纷。针对载荷板的尺寸效应及承载力特征值的判断标准这一问题,本文通过在相同条件下不同尺寸载荷板实测试验入手,通过查阅分析相关资料,给出了地基承载力的判断标准。
The static load test is currently the most widely used method to test the bearing capacity of the foundation,it is also commonly recognized as the most accurate and reliable in-situ measurement method.But the current practice code specifies that the size of the loading board used in the test and the provision for the bearing capacity of the corresponding deformation value are in a wide range of values,as a result,geotechnical testing companies may select different loading board size and different testing criteria under the same conditions,which leads to different conclusions on the foundation bearing capacity and even more so,resulting in many disputes.Focusing on the size effect of the loading boards and testing criteria of the characteristic values of bearing capacity,this paper examines the results of different size of loading boards under the same conditions and analyses the relevant literature.Finally,the testing criteria for foundation bearing capacity are given.
出处
《工程勘察》
2021年第5期31-33,70,共4页
Geotechnical Investigation & Surveying
关键词
载荷板尺寸
地基承载力特征值
判定标准
loading board size
characteristic value of foundation bearing capacity
testing criterion
