Abstract：It is proposed that PLT curve is fitted by hyperbola in this paper.On the curve,it is easy to establish the failure standard ,then the coefficient of subgrade and the internal relation can be obtained,and an empirical formula,which estimates the secant coefficient of subgrade from ultimate bearing capacity or CPT parameter,is suggested
谢树彬；姬安宁；廖胜贤；. 用双曲线模拟载荷试验曲线方法探讨[J]. 岩土工程学报, 1999, 21(6): 707-710.
Xie Shubin, Ji Anning, Liao Shengxian. Discussion on the curve fitting method for PLT with hyperbola. Chinese J. Geot. Eng., 1999, 21(6): 707-710.
