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首次用卸荷非线性岩体力学理论研究了三峡工程左岸坝段开挖卸荷对节理裂隙岩体的影响，提出了在逐级确定的卸荷带中，进一步寻求破坏单元，从而再赋于相应卸荷参数的新思路．所得成果较常规算法有较大差别，但与实际监测成果较吻合．
For the first time, the unloading nonlinear rock mass mechanics theory is used to study the effect of unloading on the left bank dam section of the Three Gorges Project to the jointed rock mass. It is proposed that in the unloading zone determined step by step, the destruction unit is further sought, Corresponding unloading parameters of the new ideas. The results obtained are quite different from the conventional algorithms, but they are in good agreement with the actual monitoring results.