摘要
介绍了中深孔和浅孔联合微差控制爆破技术在水电站永久边坡开挖中的应用情况,叙述了在工期紧张的情况下方量较大的工程爆破施爆方案的选取、起爆网路的选择、爆破参数设计和爆破安全技术校核等技术问题。其中,在爆破孔设计上采用中深孔分层装药,浅孔连续装药,并采用了V型起爆网路进行起爆。在安全技术问题上主要涉及到爆破振动危害防范距离的确定,还对爆破效果进行了分析。
The application of medium-length and post hole joint blasting technique in hydropower slope excavation is introduced. The selection of blasting program, blasting parameters, initiation network and safety proofreading are mainly presented. Layer chafing in medium-length hole and continuous chafing in post hole are used in the design of blasting hole. V model initiation network is adopted. Safety proofreading mainly includes the calculation of the safety distance in protective measures of vibration of blasting. The blasting results are analyzed and some expriences obtained are useful for similar projects.
出处
《爆破》
CSCD
2008年第1期34-35,55,共3页
Blasting
关键词
中深孔和浅孔联合爆破
爆破参数
V型起爆网路
爆破效果
medium-length and post hole joint blasting
blasting parameters
V model initiation network
blasting results
