|
|
|
|
|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
The seismic property of reef flat in the Changxing-Feixianguan Formation, Northwest Sichuan Province, China
|
| 例句来源 | |
Stress centralization will, in turn, cause a lot of fractures and faults to develop, and ultimately, result in a gas chimney, which is a seismic smear zone beneath or above the reef flat.
|
| 例句来源 | |
By analyzing the seismic features of all known gas fields, a model to predict carbonate reservoirs has been set up.
|
| 例句来源 | |
By using data on the 1:100 000 aeromagnetic anomalies of the Sulu orogenic belt, we designed three simulated geotraverses, in which deep seismic reflection and other geophysical investigations have been completed.
|
| 例句来源 | |
The principal mark of the seismite is the development of all kinds of soft sedimentary deformation structures, such as micro-step fault, intraformational minor fold, deformation, vibrational liquefied sandstone dike and seismic breccias.
|
| 例句来源 | | 更多 |
|
|
|

| | In this paper, a survey is made over the existing theories of seismic forces onstructures. It is found that all the theories fall into one of the following cate-gories: 1) the so-called "statical theory" which considers the structure subject toan equivalent constant acceleration; 2) theories based upon simulated simplified ground motions; 3) theories based upon recorded actual ground motions; 4) theories based upon random impulses. Critical comments have been given to the above theories, especially to... | | 本文回顾了关于建筑物地震力的理论的发展过程,对于现行的几种理论进行了评论;认为在我国目前条件之下,可以采用一种基于动力原则的地震力系数;最后对今后的研究方向提供了一些意见。 | | 文摘来源 | | The main subjects in relation to the earthquake resistant design of earth dams such as the determination of seismic forces acting upon earth dams and their foundations,the evaluation of dynamic properties of soils under seismic actions,the method of analysis of seismic stability of earth dams and the engineering measures in earthquake resistant de- sign of earth dams are reviewed systematically based on literatures and data which are available to the author. The works done by Matumura,Mono... | | 本文对土坝抗地震设计中有关地震荷载、土的动力性质、土坝地震稳定分析方法和防震工程措施等方面的问题,进行了综合论述.在土坝地震荷载方面,着重介绍了日本松村、物部和畑中,英国恩伯拉散斯(N.N.Ambraseys)和苏联那比脱伐列齐等人所做的工作,以及目前在苏联、日本和美国等土坝设计中关于士坝地震荷载估算方面的实际执行情况.关于土在地震动力作用下的特性方面,文中主要介绍和讨论了目前上坝地震动力分析理论中所采用的土的应力应变关系和阻尼问题,以及土坝地震稳定分析中所需考虑的土的抗剪强度和孔隙压力问题.关于土坝地震稳定分析方法和防震工程措施方面,文中在简单介绍了目前一般采用的土坝地震稳定静力分析方法之后,又根据世界上若干地震区土坝实际情况的记载,提出土坝防震工程措施的重要性,和在地震区设计土坝时应注意的问题.文中最后并提出了今后研究工作的初步意见. | | 文摘来源 | | The research work described in this paper comprises of the following aspects: 1. By statistical analysis of response spectra of natural earthquake recordings, the predominent period under various earthquake conditions as well as relations of vertical to horizontal components of actual ground motion were obtained. 2. By producing explosive seismic waves assimilating natural earthquake, horizontal and vertical vibrations were set up in a 1/20 large scale test model, where upon the natural vibrations c... | | 本文所述研究工作概括为下列方面: 一、利用天然地震记录进行了频谱特征的统计分析,得出了各种条件下的地震卓越周期以及地震最大振幅中竖向分量和水平分量的比例关系。 二、利用爆炸地震波模拟天然地震,以激发大比例尺模型的水平和竖向振动。 三、通过大比例尺模型试验,研究了大头壩的自振特性,水平与竖向加速度分布和动应力分布,得到了壩休劫力系数分布图。 四、通过强震破坏试验,研究了大头壩最大抗震能力,指出壩顶部分是地震荷载最北集中的地方。 | | 文摘来源 | |   | | << 更多相关文摘 |
|
相关查询: | |
对查询结果不满意
|
|
|
|