rock-plug blasting

Fissuring rock which is a type of fractur fissure structure plays a serious impact on the blasting quality of longhole in open pits because of a reduce in blasting energy transmission and pressured air leaking in the case.

裂隙性矿岩属碎裂结构岩体，由于能量传递效率减低和泄压严重，极大地影响了爆破质量。

Theoretical Estimation of Threshold Velocity of Blasting Vibration for Rock Slope

岩质边坡爆破振动速度阈值的理论估算

Introduction to the Management of Rapid Construction in Extra Long Tunnel under Hard Rock by Parallel Adit Drilling and Blasting Method Borehole Blasting with Water-couple Charge and Its Application in Tunnel Engineering

浅谈硬岩特长隧道平导钻爆法快速施工的管理水介质耦合钻孔爆破及其在隧道工程中的应用

The influence of blasting vibration on existed adjacent underground chambers or surrounding rock mass of the tunnel under excavating is inevitable if the method of blasting is employed for excavation.

由于地下洞室主要采用钻爆法施工，不可避免地存在爆破开挖对邻近已开挖洞室和开挖洞室本身的影响问题。

The controlled blasting theory of rock main structural plane is studied and tested, and the developing direction in the future is put forward.

对岩体主结构面控制爆破理论进行分析研究和工业试验，并对今后发展方向提出个人的看法。

Study on computer simulation for rock fragmentation and throw after blasting in open pits

露天台阶爆破岩石破碎与抛掷的计算机模拟研究

Time history analysis method for evaluating dynamic stability of high rock slope under excavation blasting

基于时程分析的岩质高边坡开挖爆破动力稳定性计算方法

The mechanism on the formation of the through crack between shotholes in directional-split rock blasting with slotted charge is stated, the method for calculating blasting parameters presented based on the mechanism, and the first-in and advantage of this blasting technique are roundly analyzed.

论述切缝药包岩石定向断裂爆破炮孔间贯通裂纹的形成机理，提出相应的爆破参数计算方法，并对这一技术的先进性与优越性进行全面分析。

Spiral V-notch loosen blasting has broadened the application of notched blasting from a single blasting control technique to a rock fragmenting one by changing the conventional straight notch along the axis into two spiral notches around the axis.

将切槽控制爆破技术引入岩体松动爆破领域：螺旋切槽孔松动爆破将传统的轴向切槽方式进行改变，即把沿轴向平行的直槽改成绕轴线旋转螺旋切槽。

Based on the theory of stress waves, the three dimensional distribution of the stress wave energy is calculated from the model. With the aid of the index of specific surface energy, the blasting fragmentation distribution of the isotropic and elastic rock can be obtained.

模型根据应力波理论，计算出应力波能量的三维分布，以岩石破碎单位表面能指标作纽带，首先求算出均质连续弹性台阶岩体的爆破块度分布。