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用砂浆试件进行了单轴压缩及三轴剪切试验，明确了不同条件下的应力应变曲线，得到了σ１σ３曲线和（σ１－σ３）／２～（σ１＋σ３）／２曲线呈高度正相关的基本结论．
Uniaxial compression and triaxial shear tests were carried out on the mortar specimens. The stress-strain curves were obtained under different conditions. The curves of σ1-σ3 and (σ1-σ3) / 2 ~ (σ1 + σ3) / 2 were obtained. Positive related to the basic conclusions.