摘要
针对万安隧道陈屋斜井围岩砂质板岩,且以Ⅲ级围岩居多的实际情况,决定对隧道开挖采用光面爆破法进行施工,通过深入现场调查,详细筹划,制定实施了"砂质板岩隧道光面爆破控制施工工法"。指出该技术完善了砂质板岩隧道的光面爆破开挖技术,加快了施工工期,减少了施工成本,起到了良好的光面爆破效果,具有明显的经济效益和社会效益。
According to the actual situation of the surrounding rock of Chenwu inclined shaft in Wan＇an tunnel,this paper decided to use the smooth blasting method to excavate the tunnel. Through in-depth field investigation and detailed planning,formulation and implementation of＂smooth slate tunnel smooth blasting control construction method＂was formulated and implemented. The technology improves the smooth blasting excavation technology of sandy slate tunnel,accelerates the construction period,reduces the construction cost,plays a good smooth blasting effect,and has obvious economic and social benefits.
出处
《山西建筑》
2018年第3期142-144,共3页
Shanxi Architecture
关键词
砂质板岩隧道
Ⅲ级围岩
光面爆破法
sandy slate tunnel, Ⅲ grade rock, smooth blasting method
