台阶深孔微差爆破是一种大规模、快速的土石方施工方法。
Deep-holed millisecond blasting is a fast construction method applied to large scale earthwork.
以工程实践和动力有限元程序分析沟槽深孔微差爆破问题。
The engineering practice and the numerical simulation have been conducted on the millisecond blasting for ditching deep bore hole.
研究了爆破震动荷载特性及微差爆破中的爆破震动叠加效应。
The characteristics of blasting vibration load and the superposition of blasting vibration wave induced by millisecond blasting are studied.
探讨了沟槽内岩块的运动规律，以及深孔微差爆破的作用机理。
The movement of the rock in ditching and the mechanism of millisecond blasting were analyzed.
用深孔微差爆破技术成功地拆除了复杂环境下的四个大体积桥墩。
By use of deep-hole millisecond blasting technique, four large-volume bridge piers under complicated circumstances were successfully demolished.
根据生产实验结果提出了东鞍山矿微差爆破适宜间隔时间的数值。
The modelling experiment has shown that the procedures are practicable, the reasonable values of the time interval for long hole m…
本文介绍了水厂铁矿大区多排微差爆破试验研究的技术途径及成果。
This paper describes the technique ways and achievements of large round multi-row short-delay blasting experiments and audies at Shuichang Iorn Mine.
试验结果表明，露天采场采用孔间微差爆破技术能取得较好的减震效果。
The results show that this technique can be used to decrease the damage effects of blasting vibration effectively in open mines.
贵州大花水水电站碾压混凝土双曲拱坝、重力坝开挖采用深孔梯段微差爆破。
The excavation of the rolled concrete double-curvature arch dam and gravity dam in Dahuashui hydroelectric station in Guizhou adopted deep-hole graded slight differences demolition.
叙述了孔内微差爆破时间间隔的确定、起爆方式、网络连接及其应用效果。
The paper describes the determination of in-hole and between-holes microsecond delay time, the detonation mode and the network connection and their application effect.
分析结果表明，在单段与多段微差爆破中，不同结构体对爆破震动的响应显著不同；
The results show that response characteristics of vibration induced by single deck and multi-deck blasting have marked differences.
本文结合工程实例，介绍了复杂环境条件下露天开采药壶微差爆破技术的设计与施工。
According to a blasting project, this paper discusses the design and implementation of spring microsecond delay blasting in open mines in complicated circumstance.
通过技术经济、石料规格及周边环境等综合因素的比较，提出采用深孔微差爆破方案。
Based on the comparisons in technology economy, rock specification, and surroundings, this paper proposes the deep-hole controlled blasting method.
以某地下工程的微差爆破振动信号进行时-能密度分析为例，对本方法的有效性作了检验。
The effectiveness of the proposed method is verified with time-energy density analysis of vibration signals of millisecond blasting in an underground engineering.
主要介绍露天深孔大梯段预裂爆破、减震爆破、微差爆破、最大一次装药量的控制措施和关系。
The relationship between the pre-splitting, vibration reduction, millisecond blasting and the maximum single detonating charge in open deep-hole large stage is introduced.
由于隧道开挖采用多段微差爆破，所以多数实测爆破地震波中存在多个优势频率峰值，能量带分布很宽。
Multi-millisecond blasting is used in tunnel excavation, so there are several dominating frequency peak values in actual observation blasting seismic, and the energy distribution belt is wide.
首先提出台阶岩体爆破的悬臂薄板物理模型，并在此基础上建立了台阶多排微差爆破的炸药量计算公式。
The physical model of cantilever board in bench blasting is firstly presented and based on the hypothesis, a formula for calculating the charge weight in the MS delay bench blasting is also derived.
为提高炮采面块煤率 ，提出了松动预裂微差爆破的落煤方案 ，并对布孔参数和爆破参数进行了调整。
To increase lump coal ratio in stopes, a scheme is put forward for coal falling by loose pre-shearing millisecond blasting, and hole arrangement parameters and blasting parameters are adjusted.
高台段深孔孔内微差爆破技术在我国的首次应用，为中小型石灰石矿山高台段开采提供了切实可行的方法。
Millisecond delay technology of high step and deep hole is the first application in China, it offers a realistic method for high step exploitation of middle and small scale limestone mine.
根据孔底空腔爆破的作用机理，结合微差爆破理论，在该采石场进行了孔底空腔微差爆破的对比试验研究。
According to the mechanism of base air-decked blasting, combined with millisecond blasting theory, the contrast tests of millisecond blasting for base air-decked were carried out in the quarry.
结果表明，除炮孔孔径在实际生产爆破中对振动影响不明显外，其它因素在大区微差爆破的设计中都值得注意。
The results show that the blast hole diameter has little effect of the vibration level in production blasting, and the other factors should be considered in large scale delay blast design.
中远区微差爆破振动叠加效应产生的主要因素是介质的衰减慢。 振动叠加强度与爆源结构特性、爆心距和间隔时间有关。
The intensity of vibration superposition is affected by the characteristics of explosion source , millisecond delay interval and distance between explosion source and measuring point.
介绍了孔间、孔内和孔间微差爆破的原理、参数、设计施工要点及在降低爆破震动、保护平硐溜井使用安全方面的应用结果。
The results of shot-delay blasting application in aspects of decreasingblasting-shake and ensuring safety of tunnel &drop shaft are discussed.
被拆除的除灰中心站爆破环境非常复杂，采用毫秒微差爆破和预处理措施，确保了除灰中心站的顺利倒塌和周围建筑物的绝对安全。
The millisecond short delay blasting and pre-treatment are used to guarantee the smooth collapses of dust treatment center station and security of the demolition environment.
介绍了用微差水压爆破一次性拆除一个多格容器式钢筋混凝土构筑物的工程实例。
In this paper, an engineering example of once through demolition of a gridiron container reinforced concrete structure by millisecond water pressure blasting is briefly introduced.
文中介绍了煤矿炮采工作面使用微差控制爆破技术的依据、技术要点、安全措施和实际效果。
In this paper, the basis, technical essentials, safety measures and practical effect using millisecond blasting technique at holing and blasting face of coal mines are introduced.
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。
This paper introduces the technique of millisecond extruding blasting with wide hole space in city cutting excavation.
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 %。
Through adopting the parallel cut and inverse initiation, and selecting correct delay-interval, an average blasting efficiency of 90% had been achieved.
确定合理的微差间隔时间，既是保证爆破质量的需要，又是达到爆破降震的关键。
To determine rational microsecond delay time is both the requirement of ensuring blasting quality and the key to achieve blasting vibration reduction.
确定合理的微差间隔时间，既是保证爆破质量的需要，又是达到爆破降震的关键。
To determine rational microsecond delay time is both the requirement of ensuring blasting quality and the key to achieve blasting vibration reduction.
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