尽管爆破开挖胜过其他开挖方法 ,但在爆破设计中 ,对震动、超气压和飞石的不利影响需要特别注意 ,在某些情况下 ,这些影响也是关键的。此外 ,当开挖非常接近带电的高压输电线时 ,进入起爆回路的感应电流问题是复杂的 ,为了确定在 40 0kV高压输电线下清除岩石的方法 ,安得拉邦灌溉部门与国家岩石力学学会进行了研究。提出了采用控制爆破进行渠道开挖的两种方法。 Although blasting is more effective than other methods of excavation, special attention is given to the adverse effects of vibration, overpressure and fly rock in blasting designs and in some cases these effects are also critical. In addition, the problem of induced current into the detonation loop is complex when excavating high voltage power lines that are very close to live loads. To determine how to remove rock under a 40 kV high voltage transmission line, Andhra Pradesh Irrigation and the National Association of Rock Mechanics Were studied. Two methods of channel excavation using controlled blasting are proposed.