本文进行了混凝土分别在单、双向侧压作用下受拉变幅疲劳试验，得到了疲劳寿命和残余应变。
Variable-amplitude fatigue tests for concrete in tension under single and bi-lateral pressures are conducted. Consequently, the fatigue life and residual strain are obtained.
不同岩性岩石的应变软化性态和破坏机制也均随侧压的增大而发生转化。
Behavior of the strain softening and failure mechanism on different rocks transforms with the increase of confining pressure.
结果表明：川北方程能较好地模拟花生、大豆、芝麻、亚麻籽的侧限排油压榨的应力、应变关系。
The results of simulation demonstrated that the model by Kawakita's Equation can simulate the stress-strain well.
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