桐柏抽水蓄能电站地下厂房岩锚梁岩台开挖工艺  

Technical on rock step excavation of rockwall crane beam of Tongbai pumped-storage hydroelectric project

作　　者：贾惠艳[1] 高红江[2] 罗涛[2] 

机构地区：[1]辽宁工程技术大学资源与环境工程学院,辽宁阜新123000 [2]辽宁工程技术大学土木建筑学院,辽宁阜新123000

出　　处：《辽宁工程技术大学学报（自然科学版）》2005年第4期549-551,共3页Journal of Liaoning Technical University (Natural Science)

摘　　要：综合了国内多家同类工程的经验并结合桐柏地下厂房实际地质情况,确定了厂房上部合理的开挖分层方案和边墙预裂方法。进行了垂直孔或水平孔光爆以及垂直孔预裂等开挖方案试验,通过不同开挖方案爆破效果的分析和比较,最终确定了岩台的最佳开挖施工方案、最佳炮孔布置、最佳装药结构和其他相关的爆破参数。Domestic experience much same projects are summarized and the actual geological situation of Tongbai underground house are combined. The reasonable excavating layering scheme of house upper part and the means of cracking beforehand along the wall are determined. The excavation schemes such as smooth blasting with vertical or horizontal holes and presplitting with vertical holes are tested. Through analyzing and comparing the blasting results of different excavation schemes, the optimal methods of rock excavation ,the optimal layout of bore hole, the most effective formation of explosive charge and other relative blasting parameters are determined.

关 键 词：岩台开挖方案 炮孔布置 装药结构 

分 类 号：TU94[建筑科学—建筑技术科学]