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- rock dynamic failure 岩体动力失稳
- Based on the theory of linear-elastic fracture mechanics, the influence of vertical seismic action on seismic dynamic failure of jointed rock mass is discussed. 摘要基于线弹性断裂力学理论分析了垂直向地震作用对节理岩体地震动力破坏的影响。
- The dynamic failure reliability of structure has been conducted according to result of NDI and repair decision. 基于各种检测结果和维修决策,对结构动态疲劳可靠性进行了评估。
- At last, The paper analyzes the calculation of the shallow cover load part, and states the mechanic concept of rock dynamic properties of the NATM. 最后分析了浅埋段荷载的计算,阐述了新奥法的岩体动态性质的力学概念。
- The electromagnetic radiation(EMR) technology can forecast coal or rock dynamic disaster,such as coal and gas outburst,rock burst etc. 煤岩电磁辐射监测技术可以预测、预报矿井冲击地压和煤与瓦斯突出等煤岩动力灾害。
- According to a great number of analytical calculated data a practical dynamic failure criteria of single-layer latticed cylindrical shells is given. 在大量计算数据统计的基础上,提出了单层柱面网壳实用的动力破坏判别准则。
- In terms of simulation results, energy accumulation and risk zonation of dynamic failure for magmatic rocks and thick sandstone are forecast and analyzed. 并根据模拟结果进行岩浆岩及厚层砂岩能量积聚及动态破坏危险性分区预测分析。
- Keywords hard rock;rockburst proneness;dynamic failure duration; 关键词硬岩;岩爆倾向性;动态破坏时间;
- Rock dynamic modulus of elasticity 岩石动态弹模
- coal or rock dynamic catastrophes 煤岩动力灾害
- The technical dimension of the intersected driver training subject has been discussed and determined through the geometric and dynamical failure analysis based on the vehicle traverse ability. 摘要根据车辆的通过性要求,从几何失效和动力失效两个方面确定了驾驶员训练横断路科目的设置技术要求,为横断路科目的科学设置提供了理论依据。
- The rock was honeycombed with passages. 岩石上有许多蜂窝状的小孔。
- Many young rock hounds grow up to be geologists. 许许多多爱好收集岩石的少年,长大后成了地质学家。
- The climber had to negotiate a steep rock face. 那攀登者得攀越一陡峭岩石。
- LEAST ENERGY PRICIPLE OF DYNAMICAL FAILURE OF ROCK MASS 岩体动力破坏的最小能量原理
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- The water had worn a channel in the rock. 水把岩石冲出了一条沟。
- He dash the glass bowl to bit on a rock. 他对著石块把玻璃碗砸得粉碎。
- The mountain rise up in a steep wall of rock. 这座山高而陡,形成一道岩石屏障。
- We are looking for dynamic persons to be salesmen. 我们正在寻找充满活力的销售人员。