中文摘要：

为解决裂缝裂缝相互作用问题的一个精确、有效的数字方法被介绍。方法主要借助于脱臼模型，压力重叠原则和伪拖拉的 Chebyshev 多项式扩大。这个方法能被使用计算多重 kinked 裂缝的压力紧张因素和周期的裂缝的多重排以及在复杂负担下面包含多重 kinked 裂缝的岩石群众的全面紧张。许多复杂计算例子被给。裂缝配置，几何、物理的参数，和负担模式上的裂缝裂缝相互作用的依赖，被调查。由有在限制卸掉的压力下面的数字结果的比较，在轴维的卸掉下面的裂缝裂缝相互作用是比在限制卸掉的压力下面的那些弱的，这被显示出。单个差错和穿过的差错的数字结果证明单个差错比穿过的差错更不稳定。它从不同裂缝长度的数字结果被发现，在 kinked 之中的相互作用击碎的不同裂缝间距在轴维的卸掉下面随一些 kinked 裂缝和裂缝间距的增加减少。

英文摘要：

An accurate and efficient numerical method for solving the crack-crack interaction problem is presented. The method is mainly by means of the dislocation model, stress superposition principle and Chebyshev polynomial expansion of the pseudo-traction. This method can be applied to compute the stress intensity factors of multiple kinked cracks and multiple rows of periodic cracks as well as the overall strains of rock masses containing multiple kinked cracks under complex loads. Many complex computational examples are given. The dependence of the crack-crack interaction on the crack configuration, the geometrical and physical parameters, and loads pattern, is investigated. By comparison with numerical results under confining pressure unloading, it is shown that the crack-crack interaction under axial-dimensional unloading is weaker than those under confining pressure unloading. Numerical results for single faults and crossed faults show that the single faults are more unstable than the crossed faults. It is found from numerical results for different crack lengths and different crack spacing that the interaction among kinked cracks decreases with an increase in length of the kinked cracks and the crack spacing under axial-dimensional unloading.