摘要
对隧道爆破振动对路基边坡稳定性的影响进行了现场声波测试,以采集到的超声波数据为依据,分析测孔不同深度处岩体声波速度、声波速度降低率、累积损伤等随爆破次数增加的变化规律,寻找累积损伤与爆破次数间的相关性。运用FLAC 3D考虑岩体力学参数损伤折减的边坡稳定性数值模拟。最终能够为类似的工程提供参考,具有理论和实践意义。
The impact of tunnel blasting vibration on the stability of roadbed slopes was tested with on-site acoustic waves.Based on the collected ultrasonic data,the variation rules of sound velocity,sound velocity reduction rate,cumulative damage,etc.of rock mass at different depths of the test hole with the increase of blasting times were analyzed to find the correlation between cumulative damage and blasting times.Numerical simulation of slope stability using FLAC 3D considering damage reduction of rock mechanics parameters.Finally,it can be used for reference in similar projects,with theoretical and practical significance.
作者
郝记秀
HAO Ji-xiu(China Communications Investment Co.,Ltd.,100029,Beijing,China)
出处
《建筑技术》
2023年第8期911-914,共4页
Architecture Technology
关键词
隧道
爆破
路基边坡
tunnel
blasting
subgrade slope
