Some key problems such as holes spacing,the size of rockmass over the horizontal holes, the detonating sequence and protective cover against flyingstones were analyzed,and corresponding methods were also put forward.
对较陡斜坡情况下的路堑施工进行讨论 ,结合工程实际提出了在陡坡堑开挖中采用扇形深孔爆破技术的参数设计方法与施工工艺 ,对其若干技术问题诸如炮孔间距、水平炮孔上部岩体体积、起爆顺序、飞石的防护等进行了分析探讨 ,提出了解决方案。
An example of the application of millisecond multiple-row holes blasting technology in a ground leveling at Huade Petrochemical Co is introduced , and the design of blasting parameters, blasting network, detonating sequence, stemming and safety proofreading are mainly presented.
以中深孔多排微差爆破技术在华德石化场地平整爆破中的应用为例,讨论了中深孔多排微差爆破参数选择、起爆网路及起爆顺序设计和爆破安全校核等技术问题,供类似工程设计与施工借鉴。
The factors influencing the fracturing order of two adjacent hard strata were also discussed.
首次建立了相邻两层硬岩层同步破断的理论判别式 ,并就相邻两层硬岩层破断顺序的影响因素进行了分析 ,结果表明 ,两硬岩层厚度、间距及上层硬岩所承受的载荷大小是影响相邻两层硬岩层破断顺序的主要因