摘要
引细入汤工程隧洞出口岩段长度2293m为二云片岩,强度较低,属较软岩。施工中爆破效果较差,欠挖补炮,进度缓慢。经过改变掏槽方式及对爆破参数的优化调整,基本达到了设计和进度要求,保证了进度和质量。
The rock of tunnel outlet in the project of water diversion from Xi River to Tang River is of micaceous-schist with length of 2 293m,and this rock belongs to soft rock with lower strength.The construction progress is slow because the blasting effect is bad.But the construction progress and quality can be guaranteed by changing the cut method and adjusting the blasting parameters.
出处
《长春工程学院学报（自然科学版）》
2007年第1期8-10,共3页
Journal of Changchun Institute of Technology：Natural Sciences Edition
关键词
隧洞
爆破参数
直眼掏槽
调整
光面爆破
tunnel
blasting parameters
burn cut
adjustment
smooth blasting
