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1)  intensity weakening theory for rockburst
强度弱化减冲原理
2)  the intensity weakening theory for rockburst
强度弱化减冲理论
1.
Put forward the intensity weakening theory for rockburst,it is the strength and rockburst liability of the coal-rock body reduced to weaken the danger of rockburst by the loosing coal-rock body.
提出冲击矿压的强度弱化减冲理论,即采取松散煤岩体,降低强度和冲击倾向性,使得应力高峰区向岩体深部转移,并降低应力集中程度,使发生冲击矿压的强度降低,使得煤岩体中所积聚的弹性应变能达不到最小冲击能,从而防治冲击矿压的发生。
3)  strength reduction principle
强度折减原理
1.
Then,based on elastic-perfectly plastic constitutive model and Ducker-Prager yield criterion,the displacement and stability factors of the earth dam with or without seepage is analyzed by using of FEM and strength reduction principle,and the Influence of seepage to stability of.
然后采用理想弹塑性模型和D-P准则,运用有限元法和强度折减原理,分析了土坝在考虑渗流和不考虑渗流情况下的位移及稳定性系数,并通过对比分析了渗流对土坝稳定性的影响。
4)  strength weakening
强度弱化
1.
The strength weakening controlling mechanism of rock bursts in coal mines was put forward.
提出了冲击矿压的强度弱化控制机理。
2.
The test results reveal that the excessive settlement and lateral movement of the caissons are due to strength weakening of soft clay during the strong storm.
试验结果显示,沉箱的过度沉陷和侧移主要是由于强风暴使得软黏土强度弱化所致。
3.
The results show that the excessive settlement and lateral movement of the caissons are due to the strength weakening of the soft clay during the strong storm,and also show that the ability of the s.
通过动三轴试验模拟波浪荷载作用下地基的变化情况,试验结果显示,沉箱的过度沉陷和侧移是由于强风暴使得软黏土强度弱化所致。
5)  intensity weakening
强度弱化
1.
Based on the intensity weakening theory,largediameter bored stress-relief techniques and coal blasting pressure relief techniques are used to eliminate the threat of rock burst effectively in danger zone,which ensures the safe production of coal mine,and provides reference and guide meaning of rock burst prevention for coal mining below 1000 meters.
针对深部矿井在开采过程中遇到的一些冲击地压问题,通过微震监测技术、数值模拟分析等方法预报了可能存在的冲击威胁,依据强度弱化减冲理论,对危险区域针有对性地采取大直径钻孔卸压技术和煤体爆破卸压技术等解危措施,有效地解除了冲击地压危险,实现了安全生产,对于后期矿井进入千米开采阶段的防冲工作具有借鉴和指导意义。
6)  maximum principle of strength
强度原理
补充资料:抗冲强度
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性质:表征材料抗冲击性的物理量。简支梁和悬臂梁冲击试验中,在冲击负荷作用下试样破坏时吸收的能量与其截面积之比(kJ/m2)。试样可以无缺口或有缺口;有缺口试样可降低破坏时所需之能量,称缺口冲击强度,截面积是缺口底部的截面积。该指标是材料的一项重要性能,有时也称抗冲强度或冲击韧性。另外也还有许多其他的抗冲击的试验方法以测定专指的一些抗冲击性能。例如:落锤冲击、落镖冲击等。冲击强度随升温而增大,尤其是在玻璃化温度附近。结晶时,特别是生成大尺寸的球晶结构往往使冲击强度降低。加入橡胶类聚合物等增韧剂则可提高冲击强度。

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