| 1. | ( 4 ) 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
（ 4 ）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。 |
| 2. | 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。 |
| 3. | Blasting stress wave of bedded composite rock spread rules and rock damage situations are studied . the inflection of manner and structure of detonation of pre - splitting and step blasting on blasting effect have been studied
分析了层状复合岩体中的爆炸应力波的传播规律和爆破前后岩体损伤状况，并研究了层状复合岩体中预裂爆破和台阶爆破技术的装药方式和装填结构对爆破效果的影响。 |
| 4. | ( 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。 |
| 5. | ( 3 ) the blasting stress wave reflects and transmission rules of blasting stress wave have been found . based on rules and damage principal equation of rock , damage principal equation of bedded composite rock has been built . the conclusions of rock damage produced by blasting stress wave and denotation vapor have been educed
（ 3 ）推导了爆炸应力波在层状复合岩体中反射和透射的规律，并根据岩体的损伤本构关系，建立了层状复合岩体爆破损伤本构关系，得出了岩体损伤是由爆炸应力波及爆生气体共同作用的结论。 |
| 6. | Mainly results as follow : ( 1 ) based on fracture mechanics and damage mechanics theory , the mechanism of rock damage and fracture has been analyzed and the rock damage and fracture rules have been put forwarded . based on damage and destroy theory of bedded composite rock , damage principal equation and damage and fracture rules of bedded composite rock have been founded
论文主要内容和取得的成果如下： （ 1 ）根据断裂力学和损伤力学理论，分析了岩石损伤断裂机理，提出了岩石的损伤断裂准则；以层状复合岩体损伤破坏理论为基础，建立了层状复合岩体损伤本构方程及其破坏断裂准则。 |
