【摘要】 根据水介质特性和爆炸作用特点，得出水压爆破最佳不耦合系数为４．４，其粉碎区和裂隙区范围分别为炮孔半径的１．０１～１．８４倍和３．６～１４．５倍；讨论了水的水楔作用。指出水压爆破可增大孔距，丰富了水压爆破破碎理论。更多还原

【Abstract】 Based on characteristics of water and its blasting effect, the optimal coefficient of ultimate non-coincidence is found to be 4. 4. Extent of the fragmentation zone and crack zone are 1. 01～1. 84 times and 3. 6～14. 5 times of the radius of blast hole respectively. The water wedge action is also discussed. Water blasting can increase the spacing of boreholes. This can contribute to the development of theory of water blasting.更多还原