CAJ | 학술논문

为了研究长江中下游地区广泛分布的原状网纹红土的蠕变特性,进行了不同围压下的三轴排水蠕变试验,在此基础上引入Singh-Mitchell蠕变方程,即应力-应变关系采用指数函数,应变-时间关系采用幂函数,建立了网纹红土的Singh-Mitchell蠕变模型.该模型较好地表达了土体的应力-应变-时间关系,且具有参数少、适用性强的特点.
위료연구장강중하유지구엄범분포적원상망문홍토적연변특성,진행료불동위압하적삼축배수연변시험,재차기출상인입Singh-Mitchell연변방정,즉응력-응변관계채용지수함수,응변-시간관계채용멱함수,건립료망문홍토적Singh-Mitchell연변모형.해모형교호지표체료토체적응력-응변-시간관계,차구유삼수소、괄용성강적특점.
In order to research the creep behaviors of the undisturbed reticulate red clay widely distributed in areas on the lower-middle reaches of the Yangtze River,a series of laboratory drained triaxial creep tests under different ambient pressure were performed .Based on these tests,Singh-Mitchell's creep equation was introduced,exponential function was adopted for shear stress-strain behavior and a power function for strain-time behavior. The model expressed better the stress-strain-time relationship of soil body. It is easy to use and feasible for engineering practice.