开挖爆破对基坑喷锚网边坡动力稳定影响

Study on Effect of Excavation Blasting onDynamic Stability of Soil Nail Wall at Foundation Pit

结合麓景苑深基坑爆破施工对喷锚网土质边坡的安全稳定问题进行现场观测与理论分析，提出了土质边坡开挖爆破动力稳定计算方法、喷锚阿边坡爆破稳定的前提和预断，解决了设计施工中的关键技术问题。

Combined with the blasting construction of Lujinwan spot, the survey and theoretical analysis on the safety and stabihty of soil nail wall have been done. The computingmethod of dynamic stability analysis is proposed in this paper, on the basis of the theoryof limit equilibrium of three dimensional rigid body. The premise and prejudge of blasting on dynamic stability of soil nail wall are recommended. The major technical problems have been solved in engineering design and construction.