摘要
大量试验表明,水平荷载作用的单桩的m值随桩身泥面位移增大逐渐减小,然而现有相关规范没有给出大位移情况下m值的取值范围和选取方法,这对于实际工程设计的参数选择造成了一定困难。在大量的桩基水平静载荷试验实测资料的基础上,采用数理统计的方法建立了不同土质条件下土体的m值与桩身泥面位移的相互关系式,可用来计算水平推力桩在大位移情况下的m值,算例表明该方法具有较可靠的精度和较强的实用性。
A large number of experiments indicate that the m value of piles under lateral load decreases with the increase of soil surface displacement. However, the existing codes haven＇t provided the selecting range and methods under large displacement condition, resulting in difficulty in engineering design. Based on the measured data of piles under lateral load, mathematical statistics are used to establish a relationship between the m value and its soil surface displacement under various soil conditions, and it can be used to calculate the m value under large displacement. The example demonstrates that the present method is of reliable precision and practicability.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2009年第9期1398-1401,共4页
Chinese Journal of Geotechnical Engineering
关键词
水平受荷桩
M法
泥面位移
非线性
pile under lateral load
m method
soil surface displacement
nonlinearity
作者简介
作者简介：吴锋（1978-），男，博士研究生，高级工程师，从事港工结构研究。E—mail：wufeng372@163．com。
