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直眼掏槽在隧洞软岩施工中的应用及爆破参数优化
Application of burn cut to tunnel soft rock construction and blasting parameters optimization
【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。
【Abstract】 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.
【关键词】 隧洞;
爆破参数;
直眼掏槽;
调整;
光面爆破;
【Key words】 tunnel; blasting parameters; burn cut; adjustment; smooth blasting;
【Key words】 tunnel; blasting parameters; burn cut; adjustment; smooth blasting;
- 【文献出处】 长春工程学院学报(自然科学版) ,Journal of Changchun Institute of Technology(Natural Sciences Edition) , 编辑部邮箱 ,2007年01期
- 【分类号】TV554
- 【被引频次】2
- 【下载频次】118