| 1. | Develops the blasting damage theoretical model and make it more perfectible 进一步发展和完善了爆破分形损伤理论模型。 |
| 2. | The blasting damage and fracture process of rock is complicated dynamic evolvement process 岩石爆破损伤断裂过程是一个复杂的动态演化过程。 |
| 3. | Women embrace after a blast damaged their home in thenia town , east of algiers , january 29 , 2008 1月29日,在阿尔及利亚首都阿尔及尔以东50公里的特尼亚,在爆炸中失去房屋的居民抱头哭泣。 |
| 4. | Based on the existing research results and up to the minute theory of rock damage and fracture mechanics , the blasting damage and fracture mechanism of rock and bedded composite rock is studied 本文基于前人的研究成果,采用岩体损伤、断裂理论的最新研究成果,研究了岩石和层状复合岩体在爆炸应力波和爆生气体作用下的损伤断裂机理。 |
| 5. | ( 5 ) based on the structure of dyna - 2d program in which rock and bedded composite rock blasting damage principal model was embedded , number simulation of the rock blasting process is realized , which proves built model accurate and reasonable 。 ( 5 )将建立的岩石爆破损伤本构模型和层状复合岩体本构模型嵌入dyna - 2d程序框架,对岩体的损伤破坏过程进行了数值模拟,其结果验证了理论模型的正确性和合理性。 |
| 6. | The quasi - static damage stage under the quasi - static stress field produced by gas from explosion . finally , the general model for blasting damage and fracture is gained . in the thesis , a gas - driven fracture propagation and damage localization at the crack tip model during explosion products are proposed 根据爆炸力学,将岩石的爆破损伤分为两个阶段来研究,第一阶段为爆炸应力波作用下的动态损伤阶段,第二阶段为爆生气体静态压力场作用下的损伤阶段,最终得出了岩石在爆破作用下的爆破损伤断裂全过程演化模型。 |
| 7. | On the basis of theory of fracturing mechanics and damage mechanics , the mechanism of damage and fracture by explosion load has been analyzed and studied deeply . and the calculation of blasting damage in rock is explored further by using the combination of the current model for blasting damage and the simulating blasting experiment 本文利用断裂力学和损伤力学的理论对岩石在爆炸作用下的损伤断裂机理进行了深入分析和研究,并采用现有的岩石爆破损伤模型和岩石爆破损伤模拟试验相结合的方法,对岩体在爆破作用下产生损伤的计算进行了新的探索。 |