利用Ｍｏｎｔｅ－Ｃａｒｌｏ技术模拟岩体的节理裂隙分布的网络结构，从断裂力学的角度出发，分析岩体的节理裂隙的起始扩展和裂纹的止裂，并计算了岩体节理裂隙在爆破作用下的扩展角和扩展量，绘制爆破后的节理岩体的裂隙结构网络图，对研究爆破后岩体的性质具有重要的作用 Monte-Carlo simulation of network structure of rock mass distribution of joints and fractures, from the point of view of fracture mechanics, analyzes the initial expansion of rock mass joint crack and crack arrest, and calculates the fractured rock mass in blasting effect The expansion angle and the expansion of the fractured rock mass, drawing a network diagram of the fracture structure of the blasting jointed rock mass, which plays an important role in studying the properties of the rock mass after the blasting