进行了井下巷道地震反应的弹塑性分析，探讨了地震力作用下巷道围岩应力状态的变化规律。
The elastic-plasticity numerical analysis of a tunnel model which subjected to earthquake waves loads is done to study the tunnel surrounding rock's dynamic stress state.
该模型考虑了自由面边界、流量边界、基坑围护连续墙、井边界、土体非线性特性、土的渗透性随应力状态的变化。
This model considers free surface boundary, flux boundary, horizontal flow barrier, well boundary, non-linear characteristics of soils and dynamic change of permeability coefficient with stress state.
对这些有缝结构进行计算分析时，接缝及裂缝状态的变化会使得接触界面的范围和界面上的应力和位移不断发生变化。
When analyzing structures with joints or cracks, state changing of these interfaces will affect stress and displacement of contact surface.
地下水位上升和地下水在土中渗流引起土体应力状态变化是导致斜坡在降雨过程中或降雨后变形与破坏的关键因素。
The variation in stress state of soils due to the rise of ground water level and seepage of ground water is critical to the deformation and failure of slopes during and after heavy rainfall.
焊缝位置和壁厚差异变化时，拼焊管各区域的应力状态保持不变。
Weld-seam position and thickness difference do not affect stress and strain states.
通过试验结果与应力场分析，讨论了不同应力状态参数下，金属材料韧性断裂形式的变化规律。
Through the analysis of test results and stress fields, the change of metal materials' ductile fracture mode with different stress condition parameters are discussed.
在运转过程中，温度变化对结构的应力状态具有显着的不容忽视的影响。
During operation, temperature changes have significant influence that can not be ignore in the stress state of the structure.
目的：研究牙周支持高度降低状态下施加舌向集中力时，牙周组织的应力变化、分布规律和牙的初始位移。
PURPOSE: to study the stress variation and distribution of the periodontium and the tooth initial displacement when the lingual fixate forces were applied to the depressed periodontal height.
而且，证实建立在某种试验应力状态下饱和软粘土循环强度和循环累积变形的变化规律，可以推广到一般应力状态下。
And the changing laws of cyclic strength and cyclic accumulate deformation built on certain test stress states have generality and can be used in general stress states.
在爆炸或冲击荷载作用下，钢板间会引起复杂的应力应变状态的变化，表现在应力波传播比较复杂。
That the complex stress state change is aroused between armor plates under explosive or shock force is expressed by complex stress wave propagation.
计算并分析了震源力学状态这种变化在其周围产生的附加应力场，以及反映这一过程的地应力变化特征。
Based on this variation of mechanical state at the earthquake fault, the additional stress given rise on its surroundings and the stress change of this process have been computed and analyzed.
石油勘探与开发的全过程都与地壳岩石的应力状态及其变化密切相关。
The whole process of oil exploration and production has close relations with the state and changes of stress field.
结果表明，双剪切试样受剪区域的应力状态基本为均匀分布且随蠕变时间变化很小。
The results show that there is a near uniform stress state in the shear zone.
采用数值模拟方法，得出该基坑开挖支护过程中土体的应力状态分布变化情况及基坑周边某些点的位移变化情况。
The numerical simulation method is adopted to get the distribution of the soil stress and the displacement variety of some points during the excavating and supporting process.
采用有限单元法对轧辊辊齿的应力状态进行了研究，得出了不同结构参数对轧辊应力变化的影响。
The paper presents the research into the stress state of roller teeth using FEM (finite element method). The results show that different structure parameter causes a change in roll stress.
大位移井井壁坍塌压力随井斜角与井斜方位角的变化规律主要由地层的原地应力状态决定。
And the variation law of the hole collapse pressure of extended reach well along with hole Angle and azimuth mostly decided by the status of the stratigraphic in-situ stress.
在理想状态形状模型的基础上，提出了通过改变膜厚度方式改进反射面应力均匀度的方法，确定了最佳的反射面厚度变化规律。
Based on the ideal shape model, variable thickness method is used to improve the uniformity of stress distribution of reflector, and the best thickness variation is determined.
通过大量管材弯曲试验，分析了沿弯曲线的切向和管壁厚方向的应力应变状态，给出弯管内、外侧管壁厚变化量和切向应变的近似计算公式。
Based on lots of tube bending experiments, the stress-strain state along the tangential direction of bending line and the direction of the wall thickness is analyzed.
本文采用完全耦合有效应力分析程序和与状态相关的剪胀性砂土模型模拟斜坡因地下水位变化而发生的变形。
The deformation of slope caused by change of ground water level was investigated by adopting a fully coupled procedure and the stat.
认为地壳力学状态及其应力应变场的变化，是地震预报中最直接的前兆因素。
The authors hold that the mechanical state and the change of tectonic stress fields of earth's crust are the most direct factors in seismic precursors.
给出了变形过程中的力学参数如应力、应变等变化状态。
The mechanical parameters such as stress and strain are showed.
其次，在运转过程中，温度变化对结构的应力状态具有显著的不容忽视的影响。
Next the temperature change possesses the notable influence not to allow the ignorance to the stress state of structure in revolving the course.
结果表明，在基坑开挖过程中，基坑壁附近的土体应力状态变化显著；锚杆锚固段应力呈非线性递减分布；
The result indicates that when the foundation pit is excavated, the soil stress state near the foundation pit wall changes obviously;
本文采用完全耦合有效应力分析程序和与状态相关的剪胀性砂土模型模拟斜坡因地下水位变化而发生的变形。
The deformation of slope caused by change of ground water level was investigated by adopting a fully coupled procedure and the state-dependent dilatant sand model.
地下水位的变化，将使土洞周围土体的应力状态发生改变，并有可能导致土洞周围土体产生塑性破坏，使土洞进一步扩大甚至塌陷。
The stress distribution around the soil cave will changed due to variation of groundwater level, then the soil mass around the cave may plastically fail and the soil cave may enlarge or collapse.
其次，在运转过程中，温度变化对结构的应力状态具有显著的不容忽视的影响。
Secondly, in the course of operation, temperature changes on the structure of the stress of having significant impact can not be overlooked.
探讨了剪跨区内应力应变分布变化规律；分析了试件的破坏过程及状态。
This paper explores the regularities of the distributions of stresses and strains within the shearing spans and analyses the failure procedures and the failure modes of the specimens.
相应于原始应力状态变化情况可将其分为几个不同的区域。
The soil can be divided into different zones based on the variation of stress state compared with initial stress state.
用室内试验方法研究了土体应力状态变化对其力学性质的影响。
The statistical relationship is proposed between mechanical properties of soils and the stress disturbance degree.
用室内试验方法研究了土体应力状态变化对其力学性质的影响。
The statistical relationship is proposed between mechanical properties of soils and the stress disturbance degree.
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