爆破振动对周边基坑槽回填土的影响分析

Influence analysis of blasting vibration on surrounding foundation pit slot backfill soil

通过对重庆轨道交通红旗河沟车站施工过程中的爆破振动进行三维数值模拟分析,研究了钻爆法施工对周边基坑槽填土区的振动影响,结果表明:对于爆破点距回填土较近的工程更应勘察回填土的密实程度,对于回填土的控制振速视其密实度、距离爆破点的距离而定。

Through three-dimensional numerical simulation to analyse blasting vibration in the construction process of Chongqing orbit traffic red flag river valley station, researched the vibration influence of drill-blasting construction method on surrounding foundation pit slot backfill soil. The results showed that, for blasting spot was very to backfill soil construction surveying of backfill soil close-grained degree was very indispensable, for the control vibrating velocity of backfill soil, depending on the density and the distance of blasting spot.