Experimental study on constitutive model of sandy soil with consideration of stress path at small strain;
砂土在小应变下考虑应力路径影响的本构模型的试验研究
This paper discussed the basic problem on bearing capacity of pile estimated by small strain method of dynamic testing,and introduced simply the techniques and features in the analogy simulation theory and tests of pile engineering.
讨论了小应变法动测桩承载力的基本问题 ,简述了类比模拟理论及工程试验中的类比模拟手法与特点 ,探讨了类比模拟法应用于研究小应变法动测桩极限承载力的可行性 类比模拟 ,作为一种思维方法 ,可起着一种解放人们被束缚着的思想观念的作用 ;作为一种技术手段 ,它可以使人们借鉴与积累经验 实例分析的结果表明 ,动测刚度可直接用以推测桩的极限承载
A new kind of automatic precision test system of triaxial compression is introduced in this paper, then the relationships between stress and strain of soft rock are revealed from the tests by the above test system under the condition of small strain (below e_1=10~(-5) strain level) and the elastic modulus of soft rock can be obtained.
本文首先介绍一种岩土自动化精密三轴压缩试验系统,并以此试验系统所得的一组实验结果为例,揭示软岩在微小应变(ε_1=10~(-2)—10~(-5))条件下所反应的应力-应变的线性关系,以及根据软岩在弹性范围内所测得的数据求出弹性模量。