On the basis of the determined height of blasting cut, check on the reliability of building collapse was made.
根据所确定的爆破缺口高度，对大楼倒塌的可靠性进行了校核。
In this paper, selection of blasting cut height and parameters, pre-treatment, design of priming circuit and safety precaution measures were introduced.
文中介绍了爆高和爆破参数的选择、预处理、起爆破网路设计和安全防护措施。
A simplified model for directional collapse of a construction is presented and a calculation formula on the minimum height of blasting cut is developed.
对建筑物的定向倾倒提出了简化模型，推导了最小炸高的计算公式。
The pretreatment measures, shape and size of blasting cut, blasting parameters, detonation networks, safety technology measures and blasting effect are discussed.
着重介绍了预处理措施、爆破切口形状与尺寸、爆破参数、起爆网路、安全技术措施及爆破效果等。
In addition, the selection of blasting parameters, the determination of blasting cut size, safety precautions and the others are introduced, and some experience from the design...
文中还介绍了爆破参数的选择、切口尺寸的确定、安全措施等，并总结了设计和施工中的经验。
But in the case of a tower building, since there is a supporting steel bar at the blasting cut, the height deducted from the common knowledge is hard to ensure directional collapse.
但对于钢筋混凝土等高耸建筑物，由于爆破切口处有钢筋支撑，如果还按此经验取值，则难以保证其定向倒塌。
The estimation of deviation of toppling direction, rectifying deviation measures and strength check of the support part of blasting cut in sloping brick chimney demolition were introduced in detail.
详细介绍了烟囱倒向偏差估算、纠偏措施和支撑体的强度校核。
The blasting result showed that controlled blasting by employing energy concentrating cut was feasible in demolition of high tower with steel structure.
爆破结果表明，采用聚能切割方式进行控制爆破拆除钢结构高塔是可行的。
Through adopting the parallel cut and inverse initiation, and selecting correct delay-interval, an average blasting efficiency of 90% had been achieved.
通过采用含空孔的直孔掏槽方式、反向起爆，并合理选择微差起爆时间，桩井爆破的平均炮孔利用率达到了90 %。
Under complex condition in a factory building, two large-scale reinforced concrete columns of the factory building were partially cut by the presplitting blasting.
在厂房内复杂环境下，用预裂爆破对两个大型钢筋混凝土厂房立柱进行部分切割。
One time blasting of deep and medium holes was applied for the cut through raise and smooth surface blasting was used for the stope periphery and upper wall to ensure the stope safety.
采场切割井用中深孔一次爆破技术，采场周边及上盘则采用光面爆破技术，确保采场稳定。
The application of ribbon charge (placed in tunnel)in twin slope - cut chamberblasting can weaken the damage to slope rock from blasting.
在双路堑洞室爆破中应用条形药包可以减少爆破对边坡岩体的损伤。
The application of cut blasting in Ekou iron mine is described. Some reasonable blasting parameters are provided for similar mine.
介绍了采场中部掏槽爆破在峨口铁矿的应用，提供了一组比较合理的爆破参数，供类似矿山的生产作参考。
The movement law of the smashed rock mass in the cut blasting was studied using two phase flow method drawn on the experience of industry.
借鉴工业生产中的两相流动方法研究掏槽爆破中的颗粒运动规律。
With the index of cut hole's volume, depth and blasting fragmentation in the thesis, the simulated tests have been carried out upon cut blasting of bottom air column and conventional charge.
以槽腔体积、槽腔深度和爆破块度为指标，对底部空气柱装药和常规装药掏槽爆破进行了模拟试验。
It is found that the staged cut with duplex-square has the best blasting effect in trial shafts sinking. This experimental result is analyzed with the existing achievements of rock dynamics.
结果表明：复式正方形分层分段掏槽在试验井筒中有最佳的爆破效果，并应用现有岩石动力学的成果分析了这一试验结果的原因。
The development of study on cut height calculating in demolishing building with controlled blasting is reviewed.
总结了爆破缺口高度的研究现状。
Experimental results show that the cut blasting effect of bottom charge is better than that of conventional charge.
试验结果表明，底部空气柱装药掏槽爆破效果优于常规装药效果。
Triangle cut was adopted and directional window was excavated by cutting blasting and pneumatic pick repair.
方案设计采用三角形爆破缺口，掏槽爆破加风镐修整开凿定向窗。
Abstract: the application of cut blasting of the middle of the stope in Ekou iron mine was introduced, a set of practical blasting parameters were achieved and good blasting effect was obtained.
文摘：介绍了采场中部掏槽爆破在峨口铁矿的应用，并得出了一组切合实际的爆破参数，取得了较好的爆破效果。
The practice has shown that the initiation delay time is an important factor affecting cut blasting effect.
工程实践表明，微差起爆时间是影响掏槽效果的一个重要因素。
Test shows that the blasting effect of cylinder cut of ms blasting in borehole is better than that of cylinder cut.
试验结果表明，孔内微差分段掏槽优于筒形掏糟。
The study has provided a ba se for design of blasting parameters of parallel cut.
为 含空孔直眼掏槽爆破参数设计提供了依据。
The study has provided a ba se for design of blasting parameters of parallel cut.
为 含空孔直眼掏槽爆破参数设计提供了依据。
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