Based on the indoor model tests and field blasting crater tests, the paper discussed the influence of single closed fissure upon fragmentation effect of blasting with single spherical charge.
本文在室内模型试验与现场爆破漏斗试验基础上，着重论述了单个闭合状裂隙对单个球状药包爆破破碎效果的影响。
For this purpose, the causes for flying rocks are analyzed and the sorts of flying rocks are studied based on the theory of rock fragmentation by blasting and the field investigation.
为此，根据爆破破岩理论和现场调研，分析了飞石产生的原因，讨论了飞石的类型。
By use of dynamic strain testing, the ultrasonic wave, bedded composite rock damage and fracture mechanisms and the fragmentation process during blasting have been experimentally studied.
运用超动态应变测试技术、超声波检测仪对层状复合岩体的爆破损伤破坏机理和破坏过程进行了实验研究。
Blasting induces damage and fragmentation of covering rock mass in subsea tunnel that serious situation might cause tunnel collapse and water burst.
爆破会对海底隧道覆盖岩体造成损伤和破坏，严重情况会引起隧道塌方和突水等事故。
Therefore, making a thorough study on the blasting fragmentation distribution is of momentous theoretical and practical significance.
因此，对爆破块度分布进行深入的研究具有重大的理论和实际意义。
Recently air-cushion blasting with column charge has been widely used and gained remarkable results in improvment of fragmentation and controlling damage.
近年来条形药包空腔爆破的应用范围有了一定的扩展，并且在提高爆破效果和控制爆破危害等方面取得了显著效果。
The new parameters for describing damage and its evolution in rock are explored to construct damage model of rock fragmentation by blasting.
探索岩石动态损伤参量及其演化表征方式以构造岩石爆破损伤模型。
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。
The transient release of excavation load is accompanied by the development of cracks, the outburst of detonation gases and the formation of new free surface during the rock fragmentation by blasting.
岩体爆破开挖过程中，开挖荷载瞬态卸荷伴随着爆破破岩的裂纹扩展、爆生气体逸出以及新自由面形成等过程而发生。
The problems on broken regular caused by blasting and forecast of fragmentation distribution are analyzed and studied.
就损伤岩体爆破破碎规律和块度分布预测的几个问题进行了分析研究。
The problems on broken regular caused by blasting and forecast of fragmentation distribution are analyzed and studied.
就损伤岩体爆破破碎规律和块度分布预测的几个问题进行了分析研究。
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