【摘要】 通过观测同一地点岩体多次爆破前、后岩体的声速以及爆破振动速度峰值变化规律,由声速测试结合爆破振动测试数据结果计算出岩体损伤系数,实测数据的对比和计算结果表明:在多次爆破振动损伤累积的条件下,爆破振速随岩体的声速呈指数关系衰减。并由声速测试结果确定了边坡在爆破振动作用下的损伤阈值。更多还原

【Abstract】 Through the observation on change rules of sound speed and blasting vibration peak velocity in the same point before and after blasts,the damage coefficience of rock mass was calculated by combining the sound speed and the monitored results of blasting vibration.The monitored and calculated results show that on the condition of the cumulative damage of blasts,the blasting vibration attenuated exponentialy along with the sound speed of rock mass.And the damage threshold of rock slope under blasting vibration was defined by the results of sound speed measuring.更多还原