查询词典 seismic

As for this condition the study of physical measure of seismic intensity and damage potential of ground motion based on the abundant records and specified damage material from Chi-Chi earthquake is conducted in this paper. The main contents and conclusions of this dissertation are followed.

针对这种状况，本文利用台湾集集地震提供的同一地震中得到的丰富的地震记录和详尽的震害资料开展了烈度物理标准和地震动破坏势的研究，主要研究内容和成果有以下几个方面：(1)整理统计了集集地震的工程震害资料，并以此为基础采用平均震害指数方法绘制了集集地震的烈度等震线。

When the Chilean earthquake occurred in 1960, seismographs recorded seismic waves that traveled all around the Earth .

当智利地震发生在1960年，地震仪记录的地震波说，走过的所有环绕地球。

The development of wavetheory based seismic migration and imaging methods provides reliable ways for the construction of angledomain CIGs of high quality.

以波动理论为基础的地震偏移成像方法的发展为获得高质量的角度域CIG提供了可靠的实现途径。

3D seismic migration algorithms of holding circular symmetry ;2. Assuming that the point spread function is circular symmetry and considering that the image is actually complex conjugate symmetry in frequency domain, authors establish a new cost function in frequency domain.

算法假设退化系统的点扩散函数具有圆对称性，并考虑图像的频域具有复共轭对称性，在频域里建立了新的优化判据；采用共轭梯度算法搜索判据，从而在有实际物理意义的区域中收敛于最优解；对光学成像系统常见的离焦、衍射模糊问题进行了仿真；用该算法实现了其退化图像的恢复，给出并分析了结果。

The influence of free surface on tunnels is discussed.The influence of blasting vibration on fresh concrete lining is studied. The finite element method is employed to analyze the spatial distribution of temperature and thermal stress of fresh concrete lining, the wave function expansion method is used to study the interaction of blasting seismic wave and the circular tunnel with lining, thenthe safe PPV of fresh concrete lining with different age is decided by taking into account the thermal stress of concrete lining. Using the conformal mapping method, the influence of blasting vibration on the arch tunnel with lining is studied and the safe PPV of concrete lining is deduced under different incident angle.

研究了爆破振动对新浇混凝土衬砌的影响，采用有限元法求出了圆形洞室新浇混凝土衬砌内温度和温度应力在空间上的分布及其随时间的变化，采用波函数展开法求解了爆破地震波与有衬砌圆形洞室的相互作用，获得了考虑新浇混凝土衬砌内温度应力前提下不同龄期的新浇混凝土衬砌的安全振速；利用保角变换研究了爆破振动对直墙拱形有衬砌隧洞的影响，得到了爆破地震波以不同角度入射时混凝土衬砌的安全振速。

On the basis of seismic data and regionally electromagnetic sounding data in zhanhe fault depression and Jiayin fault depression,combining the drilling data of Jia-D1 well and Jia-D2 well,beginning from geologically constructional character of the basin and its circumambience,integrating the up-to-dade theories of sequence stratigraphy home and abroad,the thesis firsthy indudes the constructional pattern,the process of constructional evolvement,the process of sedimentary evolvement,the character of lava\'s groming and the geological character of oil\'s producing,depositing and coveringThe tectonic framwork of Zhanhe fault depression is two sags and one uplift , the tectonic framwork of Jiayin fault depression is three sags and two uplifts, the strikes of structures are the north north-east, early it is a fault depressions and later becomes a depression s so this basin is faulted depressed basins.

涉及隐私，隐去***论文是以沾河断陷、嘉荫断陷地震资料及区域电磁测深资料为基础，结合嘉D1、嘉D2井钻井资料，从盆地及其周边的地质构造特征出发，结合国内、外最新层序地层学理论，首次总结了沾河—嘉荫断陷构造格式、构造演化过程、沉积演化过程、火山岩发育特征和生储盖石油地质特征。沾河断陷表现为两凸夹一凹的构造格式，嘉荫断陷表现为三凸夹两凹，构造走向均为近北北东向，早期表现为断陷特征，晚期表现为坳陷特征，为断、坳复合型盆地。

In this article, the medium-term tendency of observation data of clinometer in Sheshan Seismic Station is analyzed with EIS 2000 software.

通过对上海观测的形变资料，运用EIS 2000软件，分析佘山地震台倾斜记录资料的中期趋势。

It is found that before the occurrence of strong earthquake the medium tendency of clinometer observes in Sheshan Seismic Station shows obvious tendency transition, acceleration and change phenomena.

发现强震发生前，余山地震台的倾斜仪器从中期趋势上出现了明显的趋势转折、加速、变化现象。

It is difficult to acquire the 3-D seismic exploration data in coal field in the mountainous area due to complex topography and surface geology.

在复杂的山区煤田三维地震勘探中，受地形和地表、地质条件的限制，使野外地震数据采集技术成为关健。

In coalfield seismic survey lithological problem is a popular subject in which people have been studing in recent years.

在煤田地震勘探中，岩性勘探已成为人们研究的一个热门课题。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。