圆梁山隧道口山头定向控制爆破

Directional Controlled Blasting for Tunnel Inlet at the Top of Yuanliang Mountain

为了解决圆梁山隧道进口施工场地狭窄问题 ,决定对隧道洞口附近的某山头进行定向控制爆破 ,以平整场地作为生活区 ,并且利用抛掷的石方填谷修筑施工通道 ,便于大型隧道用施工机械通行。介绍了利用硐室定向控制爆破技术进行多面临空山体爆破。

A directional controlled blasting was implemented near the inlet of Yuanliang mountain tunnel, which is the longest tunnel at the new established Yu-Huai Railway, in order to widen the construction field, to level the resident region, and to build a passway for construction by the excavated rocks. The implementation experiences in chamber directional controlled blasting where is surrounded by suspended mountain rocks are introduced.