地震

The main condition of the preferred- plane isolation is the seismic wave passing the fault with direct incident ray. It is the important explaination of why there are various seismic hazard around the fault.

从而阐明了断层在地震震害中表现出复杂现象的根本原因。3、完成了基于优势面控制作用的地震危险性分析方法。

It is illustrated how to determine the actual location of scenario earthquake, based on the inhomogeneity of seismic activity in PSS.

论文首次从地震活动在潜在震源区内的不均一性出发，对设定地震构造位置的确定进行了详细的论述。

Then through dynamical analysis, every instantaneous acceleration distributing of slope under dynamical earthquake can be got too. According to this result, adding earthquake force to structure by way of inertial force, this paper analyses the slope stabilization by using FEM strength reduction method and gains every instantaneous safety factor and its corresponding slide. Curves of safety factors versus duration can be made by curvefitting. By safety factors versus duration curves and slides, we can value structure's quakeproof stabilization and point its slide out. By these principles, programs of FEM stabilization analysis for each moment are organized.

首先通过三维非线性有限元静力分析得到动力分析的初始应力，再进行动力分析得出边坡在动力作用下每一瞬时的加速度分布，根据每一瞬时的加速度分布的结果，将地震作用力作为惯性力加在结构上，用有限元强度折减法进行边坡稳定分析，得出在地震动力作用下每一瞬时的安全系数及对应滑裂面，拟合可得到一条安全系数随时间变化的曲线，根据这条安全系数时程曲线及滑裂面，综合得出结构的抗震稳定安全系数及对应的滑裂面。

The seismicity of intracontinental subduction zones on both sides of Tianshan active orogen displays as a wide, disperse and complicated seismic zone with moderate focal depth.

天山南北两侧陆内俯冲带的地震活动表现为相对较宽阔、分散而且复杂的中等深度的地震活动带。

The results of the interval velocities inversion in synthetic and real data are positive to the efficience of the inverse system presented in the thesis.

合成地震数据和实际地震数据的计算实例都表明，本文提出的层速度tomography反演的方法是行之有效的。

The simulated data show that the time-lapse seismic AVO inversion is feasible. The formula derived in this paper is effective for discriminating the variations of oil saturation and effective pressure and for improving the precision of time-lapse seismic interpretation.

试验结果表明，在S油田进行时移地震AVO反演是可行的，推导的时移地震AVO反演计算方法能有效地分离油藏含油饱和度和有效压力的变化，真正实现对油藏的定量解释。

From the experimental results,isopach and isochromatic fringe patterns of the faults are obtained.

本文描述了唐山地震的实验结果，其结果与唐山地区地震地质资料基本相符。1。

Using the spatial analysis function of GIS,the spatial distribution characteristics of damage and isoseismal of the earthquake are studied.

在山西南部许多地点都有这次地震震害的遗迹。许多学者从不同角度对这次地震进行了分析研究。

The methods involve design and realization of isoseismal model.

并针对我国的具体情况，编制了《地震震害预估系统》软件，为我国在地震震害信息预估方面更深层次的开发应用打下了良好的基础。

The analysis of the aftershocks with M≥4.0, fault strike direction in seismic region and the long axis of isoseismal shows Gozhaco fault is the seismogenic structure. According to the Harvard focal mechanism, the normal break of Gozhaco fault leads to the Yutian earthquake under the NS direction regional stress.

综合分析Ms≥4.0余震分布、震区断裂性质以及等震线长轴方向等资料，认为郭扎错断裂是这次地震的发震构造；据Harvard震源机制解分析，这次地震是在近NS向力的作用下，郭扎错断裂发生略带走滑分量的拉张破裂所致。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。