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采用体积比为2.5:1的15号白矿油和正十二烷混合液与无定形硅石粉末配制成透明土以模拟黏性土.进行了120个不同应力状态透明土样的直剪固快强度试验及常规固结压缩试验,给出了透明土在不同应力状态下的抗剪强度值,并与典型黏性土进行了对比分析,得知两者在强度及压缩特性上具有高度相似性;通过等沉降速率的室内压板载荷试验,得到了荷载-沉降曲线、土体极限承载力、土体速度场、土体位移场,与既有研究结果进行了对比,验证了透明土模拟黏性土应用于模型试验的可行性.
Transparent soil was prepared by mixing 15 # white mineral oil and n-dodecane mixed with amorphous silica powder in the volume ratio of 2.5: 1 to simulate cohesive soil.All 120 specimens with clear shear strength at different stress state Test and conventional consolidation compression test, the shear strength values of clear soil under different stress states are given and compared with the typical clay, the two are highly similar in strength and compression characteristics. The load-settlement curve, the ultimate bearing capacity of soil, the velocity field of soil and the displacement field of soil are obtained by the indoor plate loading test with equal settlement rate. Compared with the existing research results, Feasibility of applying to model test.