This paper describes the effects of bottom water cushion on long hole blasting.
本文论述了水垫层在深孔爆破中的作用。
The features parameters selection and ignition plan of rat hole blasting are studied.
研究了斜孔爆破的特点、孔爆破参数的选择及起爆方案。
The paper elaborated the application of level deep-hole blasting for excavation project in city.
阐述了水平深孔爆破在城区石方开挖中的应用，并初步探讨了水平孔爆破的破岩机理。
During open coal mining, short-distance deep-hole blasting brings tremor to nearby constructions.
在露天煤矿开采中，近距离的深孔爆破对于邻近单位建筑物会产生震动影响。
In this paper, a new mining technique of mine-Deep hole blasting under water pressure is presented.
介绍了一种矿山开采新技术—深孔水压爆破。
Both common shallow-hole blasting and through-hole blasting can be used for demolition of concrete ground.
混凝土地坪的爆破拆除既可以用常规浅孔破碎法也可以用透孔法。
The blasting boulder yield is an important quality indicators in the step long-hole blasting of surface mine.
大块率是评价露天矿台阶深孔爆破质量的重要指标之一。
A new technique of the long-hole blasting has been used in raising and prospecting of the rooms and the pillars.
一次钻孔分段爆破的新工艺已成功地应用到天井掘进和矿房、矿柱的回采方面。
Problems in the water hole blasting were analyzed, and measures for improving water hole blasting effect were proposed.
对有水炮孔爆破存在的问题进行了分析，提出了改善有水炮孔爆破效果的措施。
To lower blasted boulder yield is one of the most important technical considerations in deep-hole blasting operations of mine.
降低深孔爆破落矿大块率是矿山凿岩中的一个重要课题。
According to specific geological conditions of Jiujialu mine area, deep-hole blasting open-air stage is explored in this paper.
根据九架炉采区具体地质条件，进行露天台阶深孔爆破的实践探索。
The test results indicate that long hole blasting in the crossing hole can improve the suction quantity of firedamp effectively.
理论研究和试验都表明 ，采用爆破方法可以增加瓦斯?。
Based on a practical project, the relationship between construction technology and cost control for deep-hole blasting is discussed.
以工程实践为基础，对深孔爆破的成本控制与施工方法、技术的关系进行了探讨。
Through the optimization study, an optimized scheme suitable for the underground deep-hole blasting in Daye Iron Mine , was obtained.
经过优化研究，得出了适宜于大冶铁矿井下中深孔爆破的优化方案。
Through deep hole blasting, water injection and roof strata of integrated management measures for the effective solution of the gas problem.
通过采取深孔爆破、顶板注水和矿压分析等综合治理措施，有效的解决了瓦斯问题。
In the light of its practical production, the monitoring method and results of deep hole blasting vibration in Wulongquan Open pit are expounded.
结合乌龙泉露天矿的生产实际，阐述了该矿深孔爆破震动的测试方法和测定结果。
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。
According to deep hole blasting practice, the wide hole spacing small burden technology is studied because the technology can improve quality of blasting.
根据深孔爆破工程实践，对宽孔距小抵抗线爆破技术进行了研究，该技术可改善爆破质量。
This paper introduced a new method for it, ie continuous stoping of room and pillar in stages and to fill mined bed with falling roof by deep-hole blasting.
本文提出了一种矿房矿柱阶段性连续回采，深孔放顶处理空区的采矿方法。
The parameters and layout of linear shaped charge, and the hole-pattern parameters, charging structure and priming method for long-hole blasting were discussed.
讨论了线形聚能装药的参数、设置方法以及深孔爆破的布孔参数、装药结构、起爆方法。
In this paper, basic tests on the mechanism of bunch-long-hole blasting are outlined, calculation and selection of blasting parameters, and its application t...
笔者简要地介绍了束状深孔爆破机理的基础实验、爆破参数的选取及爆破技术的实施，并对爆破效果进行了分析。
The principle of the scheme selection of horizontal-hole blasting for highway cutting excavation and its design method of blasting parameters are emphatically introduced.
介绍了公路路堑水平深孔爆破的方案选择原则及其爆破参数设计方法。
In the construction period of some flat earthwork deep hole blasting, the price of blasting materials was rising, so how to save the cost was the main problem faced the project.
某场平土石方深孔爆破施工期间，恰逢爆破器材价格上涨，如何节约爆破成本是此工程面临的主要问题。
The basic principle and design method on the hole by hole blasting technique are described, and the practical result of this technology in domestic open-pit mine are introduced.
介绍逐孔起爆技术的基本原理、设计方法以及逐孔起爆技术在露天矿山生产中的良好效果。
In step long-hole blasting in gently inclined open-mine, which mining along slope direction from top to bottom, the press from next step result great difficult in blasting work.
张店钢铁总厂湖田石矿为缓倾斜露天矿，在由上而下顺倾向采矿的缓倾斜台阶深孔爆破中，下一台阶对爆区有夹制作用，给爆破工作带来很大难度。
The destroy of the roof produced by stress wave of upward hole side blasting is less than that of the level hole blasting. The work of prizing flexible rock decreased by 58. 3%.
上向孔侧向崩矿爆炸应力波对采场项板的破坏比水平落矿爆炸应力波对采场顶板的破坏要小，从而使撬毛工作量减少了58.3％。
Current situation of study and application of hole-by-hole blasting on mechanism, delay time and effect is analyzed; developing further problems to be solved are given in this paper.
主要从逐孔爆破技术机理、微差时间和爆破效果等方面分析了该技术的研究和应用现状，同时分析了该技术需要进一步解决的问题。
The principle of increasing gas emission rate by long hole blasting in the crossing hole is discussed. The radius cracked zone in coal seam caused by long hole blasting is calculated.
简要论述了深孔爆破提高瓦斯抽放的机理，以煤体中柱状装药爆炸后的裂隙圈半径进行了计算。
It is special important meaning that Deep - hole blasting With bottom Gap Charging is used to protect bottom rock from breaking, to decrease block ratio and to improve blasting efficiency.
深孔爆破孔底空隙装药在有效地保护底板岩层免遭破坏，减少大块率，提高爆破效率等方面均具有重要的意义。
The mechanism of hole-by-hole blasting is analyzed, the application of this technology in the Yongping Copper Mine is introduced, and the advantages of hole-by-hole blasting are presented.
首先分析了逐孔起爆技术的机理，在此基础上介绍了该技术在永平铜矿的应用情况，指出了逐孔起爆技术的优势。
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