Cutting excavation blasting in expressway construction is characterized by a wide range of excavation height, small excavation section and high quality requirements.
高速公路路堑爆破开挖工程具有开挖高度变化大、开挖断面小、开挖轮廓要求严、特别是边坡质量要求高等特点。
The analytical method to determine the cutting size in demolition of building by blasting is mainly discussed.
本文重点讨论多墙承载楼房爆破拆除切口尺寸的解析方法。
The research results were used in cutting slope blasting excavating engineering, which makes blasting design project optimize and improve economy, social and safe benefits.
把层状复合岩体爆破损伤的研究成果运用到路堑边坡爆破开挖工程实践中，优化了爆破设计方案，取得了较好的经济、安全和社会效益。
This paper introduces the technique of millisecond extruding blasting with wide hole space in city cutting excavation.
本文介绍宽孔距微差挤压爆破技术在城市路堑开挖中的应用。
The construction practice indicated that the blasting efficiency in drift was improved and good economic benefits were obtained by the adoption of single helix cutting mode.
实践表明，采用单螺旋掏槽方式提高了平巷掘进爆破效率，取得了良好的经济效益。
The application of controlled blasting technology in road cutting under complicated environment in one Railway is introduced.
结合某铁路建设的工程实例，介绍了控制爆破技术在复杂环境下进行路堑开挖中的应用。
Based on the principle of cumulative charge explosion, a new kind of rock cutting blasting technique, the jet perforator charge blasting in small diameter boreholes, is developed in this paper.
本文介绍了适用于小直径炮孔爆破的岩石聚能切割爆破技术。
We research the digging of blasting in the Chu-Ning expressway high slope cutting of Anhui Province, factors of influence the parameter of blasting result and choose rational working procedure.
课题以安徽省埠宁高速公路高边坡路堑爆破开挖为研究对象，重点分析了影响爆破效果的参数及其合理的施工顺序。
How to design the cutting parameters of demolishing tubular structure of reinforced concrete by blasting is discussed in the paper.
本文讨论钢筋混凝土筒形结构物拆除爆破切口参数设计问题。
Wall cutting and unloading is a task of top priority of comprehensive harness in the north slope of Jinduicheng open pit stope. The vibration by blasting influenced the stability of slope.
削坡减载是露天采场北部边帮综合治理的当务之急，在边坡上进行爆破作业产生震动，对边坡稳定有一定影响。
The method of coal cutting adopts deep-hole blasting and realizes no people in the face, this decreases risk when workers are working in the face.
煤柱回收采用深孔爆破的方法落煤，减少工人在工作面打眼的危险。
This paper discusses the control of flying rocks, lump size and vibration of extruding blasting in cutting excavation.
在路堑开挖石方施工中，采用挤压爆破技术及强行拉槽双向挤压爆破技术控制爆破飞石，爆破块度及震动。
The results show that mighty compound cutting can give a good effect of sinking and blasting in hard rock shaft, and sinking velocity adopted for 2.
试验表明：强力复合掏槽在特硬岩立井掘进爆破中应用效果良好；2。
The test results show that the better blasting effect and obvious technical and economic benefits in coal rock drivage can be acquired by means of the quasi-parallel cutting method.
实践表明，在煤矿岩巷掘进中使用准直眼掏槽方式，能够取得良好的爆破效果和显著的技术经济效益。
The test results show that the better blasting effect and obvious technical and economic benefits in coal rock drivage can be acquired by means of the quasi-parallel cutting method.
实践表明，在煤矿岩巷掘进中使用准直眼掏槽方式，能够取得良好的爆破效果和显著的技术经济效益。
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