钻头是直接破碎井底岩石的工具，钻井速度的快慢不仅与钻头有关，而且与所钻岩石的力学性质密切相关。
The drill bit is a direct tool for rock breakage. The rate of penetration is closely related with the drill bit as well as the mechanical properties of the rocks.
鉴于目前固体破坏力学不能准确描述冰的挤压破碎过程，理论和数值方法的应用非常困难。
Since modern damage mechanics is not able to describe the crushing process of ice sheet accurately, it is fairly difficult to study crushing ice force using theoretical or numerical methods.
简述了P EXD型倒悬挂细碎颚式破碎机的力学行为和特点，包括运动学行为、力学分析和主要优点。
The paper briefly introduces the mechanics behaviors and characteristics about PEXD inverse hang fine jaw crusher, including kinematics behavior, mechanics analysis and main advantages.
用非线性岩石力学的理论和方法分析高陡复杂破碎地层的地质力学问题。
The geomechanics problem is analyzed to complex aloft-steep structure using the theory and method of the non-linear rock mechanics.
岩石力学性质和可钻性是分析和评价岩石抵抗破碎和钻进的基本性质，也是合理选择碎岩工具和工艺的基础。
The mechanical property and drillability of rocks are the basic quality available for analyzing and evaluating the anti fracture and drilling resistance of rocks.
研究表明，通过测试和分析：岩石的力学性能直接有关的岩石破碎。
Research shows that by testing and analysis: the mechanical properties of the rock directly related rock breaking.
为此，对废混凝土破碎物代替粗骨料配制的再生混凝土的施工性能、力学性能和热工性能进行了研究。
Therefore, the study on construction, mechanical and thermal property for reclaimed concrete prepared with waste concrete broken instead of rough aggregate is carried out.
波浪变形预报及波浪破碎引起的近岸区流场问题一直是海岸动力学的重要课题。
Wave deformation and wave-induced current has been an important topic in coastal dynamics.
打散分级机利用离心冲击破碎原理对物料进行打散，利用惯性及空气动力学原理对散状物了实现分级。
Scatter grading device carry on using the centrifugal impact crash principle to the material scatters, to disperse the shape realization graduation using the inertia and the aerodynamics principle.
结合HP圆锥破碎机结构特点，作动力学分析与计算，并进行了圆锥破碎机的平衡分析。
The paper analyzes and calculates the dynamics of the HP cone crusher in combination with the structural features of the machine, and also analyzes the dynamic balance of the machine.
运用动力学和断裂力学方法，分析圆锥破碎机主轴疲劳折断的机理过程。
The mechanism and process of broken fatiguedly main shafts of all cone crushers should be analyzed with the help of dynamics and fracture mechanics.
建立破碎围岩的力学模型，求破碎围岩中连拱隧道荷载的理论解。
Their related mechanical models are established and theoretical solutions to the calculation of chain tunnel load inside broken rock mass are obtained.
在总结现场试验效果的基础上，应用断裂力学理论分析了急倾斜煤层巷道放顶煤顶煤破断裂纹的扩展和破碎机理。
On the basis of summarizing testing effects, the extension of crack and the breaking mechanism of top coal caving in steep seam have been analyzed by applying fracture mechanics theory.
分析了预灌浆在破碎和含水地层中具有的充填、压密、粘合及固化等改良岩体原有物理力学性能的综合作用。
The comprehensive effects of filling in, compacting, agglutinating, solidifying and reclamation of rock of pre-grouting in broken aquifer are analyzed.
该模型对堆石料发生颗粒破碎后的力学特性具有更好的适用性。
The modified model can preferably reflect the influence of particle breakage on the mechanical behaviour of the rockfill materials.
运用动力学和运动学原理，对圆锥破碎机进行了运动和受力分析，找出了锥形衬套产生裂纹及运动不稳定的原因，并提出了解决问题的方法。
The reason of rend and unstable running of cone lining was found through analysis of cone crusher by using the principle of dynamic and motion. The methods for solving the problems were raised.
实践证明，颗粒破碎是影响钙质砂力学性质的主要因素。
It is demonstrated that the particle crushing is a main factor affecting the property of calcareous sand.
采用非线性分岔及突变理论研究破碎岩体中气体渗流失稳的动力学机制。
The theories of bifurcation and catastrophe in nonlinear science are used to study the dynamic mechanism of instability of gas flow in broken rock.
大部分粒状材料在外力作用下较容易产生颗粒破碎，颗粒破碎对材料的力学性能有很大的影响。
For most of granular materials, under external stress, it is very easy to cause grain breakage, which will have an obvious influence on the mechanical behaviour of materials.
在现场地应力测量过程中发现了岩芯饼裂、钻孔径缩和钻孔破碎塌孔等现象，分析了这些现象的力学机理。
During course of in situ stress measurement, some problems such as core discing, minification and caving of borehole due to horizontal stress are appeared, and their mechanism is studied.
针对低应力水平下钙质砂的颗粒破碎现象具有特殊性，分析了围压对钙质土颗粒破碎的影响，揭示其变形过程的力学机制；
Granule failure of calcareous sand is very special at low stress level. The effect of confining pressure on granule farlure is analyzed and its deformation mechanism discussed.
压力波大小既不能表征膛内发射药的破碎程度，也不能准确完全地反映发射药破碎所处力学环境。
The degree of pressure wave cannot describe the degree of fracture of propellant charge in the chamber, and cannot depict the environment of the fracturing propellant charge exactly and wholly.
确定了水泥石的动态力学性能评价参数为水泥石的弹性模量和水泥石的破碎吸收能。
Test-study for the elastic module of concrete with long age under the action of fatigue loads;
确定了水泥石的动态力学性能评价参数为水泥石的弹性模量和水泥石的破碎吸收能。
Test-study for the elastic module of concrete with long age under the action of fatigue loads;
应用推荐