从土工格室植被护坡在膨胀土边坡防护中的应用出发,提出了土工格室护坡中土工格室的预加应力概念,从定性角度对土工格室植被护坡防膨胀土边坡开裂机理进行了阐述。通过非饱和土线弹性模型对膨胀土初始开裂机理进行了深入研究,给出了预加应力、临界基质吸力、土的抗拉强度等因素与初始开裂深度的关系,为土工格室植被护坡防膨胀土边坡开裂机理研究提供了参考。 Based on the application of the geocell revetment in the slope protection of expansive soil, the concept of geocell pre-stress in the geocell retarded slope was put forward. The mechanism of the geosynthetic slope protection expansive soil slope cracking Expounded. The initial cracking mechanism of expansive soil is studied by means of unsaturated soil-line elastic model. The relationship between pre-stressed stress, critical matrix suction, tensile strength of soil and initial cracking depth is given. The expansive soil slope cracking mechanism provides a reference.