Chinese | English |
使用电子延迟顺序可以增加5 - 10个百分点的抛掷量、且不必增加炸药能量或其他爆破投人 | An increased throw of the order of 5 - 10 percentage points may be obtained through the use of electronic delay sequences, without any increase in explosives energy or other blast inputs |
减弱抛掷加强松动爆破漏斗减弱抛掷爆破〈加强松动〉漏斗r | underload ed cast blasting crater |
利用商业市场上投放的廉价而高效的军用炸药促成了抛掷助爆药的研制 | The cast booster development was fostered by the availability of inexpensive military high explosive released to the commercial market |
加强抛掷漏斗加强抛掷爆破漏斗r >, W,即爆破作用指数 n >, 1,漏斗展开角 θ >, 90°,当 n >, 3 时,爆破漏斗的有效破坏范围并不随炸药量的增加而明显增大。实际上,这时炸药的能量主要消耗在岩块的抛掷上,所以,工程爆破中加强抛掷爆破漏斗的作用指数为 1 <, n <, 3 | overcharged cast blasting crater |
半抛掷系数 | half cast factor |
在这两个极端之间、我们可以找到最大抛掷距离 | Between these two extremes, a maximum throw distance may be expected |
在这种情况下爆破的岩石块度大、而且由于冲量相同、岩石的速度和抛掷距离结果变小 | Racks to be blasted in such a case have large masses and,for the same impulse, their velocity and throw distance will be consequently short |
安全爆破距离是指抛掷的碎片不会越出预定的范围、对周围人和物不造成伤害的最小距离 | A safe blasting distance is the minimum distance beyond which the throw of fragments does not affect the surroundings significantly |
定向抛掷 | directional throw |
定向抛掷爆破能将大量岩土按预定方向抛掷到要求位置,并堆积成一定形状的爆破技术 | directional pin-point blasting |
建立爆破抛掷轨迹 | establishing trajectories of motion |
形成标准抛掷爆破漏斗的条件标准爆破漏斗的装药最小抵抗线 W 等于漏斗半径r,漏斗张开角 θ= π/2。在柱状装药条件下,若忽略反射横波的作用,则形成标准爆破漏斗的力学条件可表述为:漏斗边缘处人射波产生的切向拉应力与反射拉伸波产生的径向拉应力之和等于岩石的拉伸强度 | conditions forming normal cast blasting crater |
我们通过实验又证实、随着炮孔未装药部分的长度的减少、抛掷的散射角度则加大了 | Our experiments also confirmed that the scatter of the angle of throw increases as the unloaded hole length decreases |
或2直接抛掷量覆盖层抛掷进人先前采空区最终装载位置不需要吊铲进行挖运的数量 | castover commonly means either total castover the total amount of overburden cast into the previously mined pit, or 2 direct castover the amount of overburden cast into the previously mined pit that is in final location and does not have to be dug by the dragline |
手举过肩投掷的 | overhand |
投掷角 | angle of throw |
抛掷岩石的轮廓 | thrown rock profile |
抛掷成型 | poured-in-forms |
抛掷或隆起爆破时由于爆炸及由此导致的气体膨胀造成的岩石位移 | throw or heave |
抛掷方向 | casting direction |
抛掷时间 | move-out time |
抛掷是破碎岩石在爆炸区内形成爆堆的一种根据计划安排的前向运动 | T-is a planned forward movement of rock fragments that form the muckpile within the blast zone |
抛掷漏斗 | throw out crater |
抛掷爆破 | cast blasting |
抛掷爆破分析 | throw blasting analysis |
抛掷爆破 | muckpile throw |
抛掷爆破 | casting blast |
抛掷爆破 | cast blast |
抛掷爆破通过爆破将基岩表层或矿体上面的覆盖岩层爆破松动并抛掷到预定地点 | blast costing |
抛掷爆破剥离层 | cast blast process overburden |
抛掷爆破台阶面 | cast blasting bench face |
抛掷爆破对装铲工序的影响 | effects of cast blasting on dragline operations |
抛掷爆破技术 | cast blasting technique |
抛掷爆破操作 | throw blasting performance |
抛掷爆破结果 | throw blasting outcome |
抛掷爆破设计 | cast blast design |
抛掷爆破预测 | throw blasting prediction |
抛掷药包 | pin-point charge |
抛掷药包 | casting charge |
抛掷药包 | cast explosive |
抛掷角 | projecting angle |
抛掷起爆药包 | cast booster |
抛掷距离 | throw out distance |
抛掷距离一个物体或其中的一部分的动态位移距离,单位为m。在爆破工程中,抛掷距离有三种含义: 1. 单个块体的最大抛掷距离。 2. 爆破主体的最大抛掷距离〈爆堆所在位置〉。 3. 岩体从台阶初始位置到起爆后的爆堆中心位置重心移动距离。上述距离都是沿水平面量测的 | distance of throw |
抛掷距离预测模型 | throw distance prediction model |
抛掷量 | castover |
抛掷量 | throw volume |
抛掷量 | cast volume |
抛掷量增加 | throw increase |
抛掷量控制 | controlling the castover |
抛掷量通常是指1全部抛掷量覆盖层抛掷进人先前采空区的全部数量 | castover commonly means either total castover the total amount of overburden cast into the previously mined pit, or 2 direct castover the amount of overburden cast into the previously mined pit that is in final location and does not have to be dug by the dragline |
抛掷长度岩石爆破时的最大抛掷长度R,单位为m | throw length |
抛物体的最大水平抛掷距离 | maximum horizontal throw of a projectile |
拋掷爆破改进技术 | improved throw blasting |
控制抛掷量 | controlling the castover |
改进后抛掷爆破法可减少大煤矿的电力消耗、且不需要索斗铲进行大量的剥离运动 | Electricity consumption on large coal mines may be reduced through improved throw blasting, requiring less overburden movement by the draglines |
改进后的抛掷爆破法 | improved throw blasting |
最大抛掷距离 | maximum distance of throw |
最大水平抛掷距离 | maximum horizontal throw |
标准抛掷爆破漏斗标准抛掷爆破漏斗r =W,即爆破作用指数 n = 1,此时漏斗展开角0 =90%在确定不同种类岩石的单位炸药消耗量时,或者确定和比较不同炸药的爆炸性能时,往往用标准爆破漏斗的容积作为检查的依据 | normal cast blasting crater |
爆破岩石抛掷 | blasting induced rock movement |
爆破抛掷成型基础工程 | poured-to-solid foundations |
现场实验发现、孔口周围的大部分飞石沿着炮孔轴线方向抛掷出去 | It is discovered in filed experiments that most of the collar flyrock is thrown in a direction fallowing the drill hole axis |
现场实验发现、孔口周围的大部分飞石沿着炮孔轴线方向抛掷出去 | It is discovered in filed experiments that most of the collar flyrock is thrown in a direction fallowing the drill holding axis |
破碎和凸起抛掷过程 | fragmentation and heave process |
过肩投掷 | overhand |
这里需要应用预测抛物体在同一高程时的最大抛掷距离的弹道公式 | The general trajectory formula needs to be applied here for the prediction of the maximum horizontal throw of a projectile to a point at the same elevation |
远距离抛掷爆破 | scattering throw |
远距离抛掷爆破 | widespread throw |
通常在进行爆破方案设计时希望使抛掷量最大化。但是、在一些情况下并不需要达到最大抛掷量。例如当达到最大抛掷量会使得吊铲达不到最佳的工作高度时、反而造成爆后利润的降低 | Usually cast blast design involves maximizing the castover. However, in other situations less than maximum cast may be desired. This can occur far example if the after blast profile from maximum casting would lower the dragline elevation to the point where the machine has inadequate stacking height |
部分抛掷和重力中心运动 | percent cast and center-of-gravity movement |
露天煤矿抛掷爆破 | surface coal mine cast blast |