为了得到更加符合实际的裂隙区范围计算公式,从理论上分析研究了在空气不耦合装药条件下裂隙区范围的计算方法.选取2号岩石乳化炸药和4种典型的岩石参数值,对基于初始损伤和粉碎区存在的岩石裂隙区半径进行了计算,并在此基础上运用阿贝尔原理和岩石止裂条件考虑了爆生气体准静态作用下裂隙的二次扩展.研究结果表明:粉碎区范围的大小会对裂隙半径极大值产生较大影响,并且当岩石初始损伤达到0.7 ～0.8时,裂隙区半径受到的影响程度达到最大;得到了应力波动作用和爆生气体准静态作用下裂隙区半径计算公式.%In order to get more realistic formula of fracture zone range,the calculation method was studied theoretically under the condition of non-coupling charging.By applying No.2 rock-emulsion explosive and four kinds of typical rock parameter values,the rock fracture zone radius was calculated based on the initial damage and crushing zone.According to the Abel principle and rock crack arrest conditions,the detonation gas quasi-static crack under the action of blasting secondary extensions was considered.The results show that the size of the grinding zone made great influences on the maximum value of crack radius,and the fracture zone was influenced most when the initial damage of the rock reached up to 0.8 ～ 0.7.Finally,the calculation formula under the stress wave and the quasi-static action of the explosion gas was obtained.
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