共查询到19条相似文献,搜索用时 93 毫秒
1.
液化土层隔震和地基失效共同作用下多层砖房震害分析 总被引:5,自引:0,他引:5
对40个液化实例计算了震陷值和谱烈度比,依据宏观震陷经验,提出了在液化土层隔震和地基失效共同作用下多层砖房的震害预测方法。 相似文献
2.
3.
4.
5.
6.
COMGIS在工程场地地震灾害风险预测中的应用 总被引:7,自引:0,他引:7
分析了传统的GIS技术在震害预测中的不足,提出了基于组件式GIS技术(COMGIS)的工程场地地震灾害风险评估系统的总体设计思路及设计方案;运用组件式GIS技术、数据库技术和空间分析技术构建信息管理平台,阐述了该系统的功能结构和数据流程;提出了工程场地地质资料的可视化查询和分析、地震影响场的生成、震害空间分析模型化等的实现思路与方法.研究表明:利用组件式GIS技术结合可视化编程语言所设计的工程场地地震灾害风险评估系统,能实现工程场地资料的有效利用,如地质剖面图的自动绘制、三维地质图的生成等;而且,能将震害分析模块化,集成到系统界面菜单上,实现震害分析的智能化,保证了系统开发的可持续性;同时,以场地液化、震陷、滑坡、场地类别作为场地地震灾害风险性预测的四大因子,在Mapx VB支持下进行叠合分析,编制出工程场地地震危险区综合预测图,可为场地规划和利用提供有效的基础资料. 相似文献
7.
8.
9.
10.
11.
在软土室内动力试验和有限元有效应力动力反应分析方法的基础上,引进可靠度理论,提出软土地下建筑物抗震稳定可靠性分析方法,对上海地铁一号线位于砂性土层及粘性土层这两种典型地质条件下的地铁车站及区间隧道的抗震稳定性进行了计算分析。计算中选用国内外6条强震地震记录曲线作为地震输入,计算分析内容包括:隧道、地铁车站、周围土体及注浆材料的动应力、孔隙水压力和震陷;地铁车站和周围土体的动力可靠度。所得结论可为软土地下建筑物抗震设计提供参考依据。 相似文献
12.
13.
震后灾害损失快速评估 总被引:6,自引:0,他引:6
本文论述了震后灾害损失快速评估的三种方法,分别适用于城市、整个受灾区及农村。文中还提供了一系列平均统计数据,如建筑物震害率,平均损失率等,为当地无详细资料时参考使用。并以地震烈度和人口密度为参数,给出快速评估人员伤亡的经验公式。最后还讨论了地震间接损失的估算方法。 相似文献
14.
震害评估软件EDEP—93及其在普洱地震中的应用 总被引:2,自引:2,他引:2
本文介绍震害评估软件EDEP-93的功能及其使用方法,并以普洱地震灾害评估为例,对震害调查、输入数据文件建立和经济损失计算等震害评估的全过程进行了说明。 相似文献
15.
Masanori Izumi 《Disasters》1983,7(4):244-250
A summary review of the Japan Sea (Nipponkai-chubu) earthquake of 1983 is presented. Damage to civil and building structures is explained in brief. Owing to the spread of earthquake-proof design, damage sustained was very slight for a M = 7.7 earthquake, except to those built on liquefied ground. Our next target in earthquake engineering may be to protect and maintain the functions of city-facilities against strong shaking so that citizens might not experience much disruption in their daily lives after big earthquakes. 相似文献
16.
ABSTRACTDestructive earthquakes in urban or rural areas around the world have caused severe damage to local societies. Pre-disaster prevention and post-disaster reconstruction can significantly reduce the impact of earthquakes on communities. To explore the popular research topics and trends in this area, CiteSpace was used to develop a knowledge map visualization. It was found that the main research into earthquake disaster prevention and reconstruction has been focused on disaster risk reduction planning, disaster mitigation knowledge, participatory disaster governance, and community resilience building. In this Special Issue, there were six distinctive earthquake disaster research papers that covered scientific, social, and institutional aspects. It was concluded that to reduce the effects of earthquake disasters, an interdisciplinary research approach and systems thinking is needed. The investigation also revealed that there has been a paradigm shift from post-disaster reconstruction to pre-disaster prevention to build community and urban resilience. 相似文献
17.
关于建立地震灾害指标体系的研究:地震灾情的综合信息系统 总被引:2,自引:0,他引:2
建立地震灾害指杯体系,对全面、系统地反映灾情是十分重要的。本文对地震灾害指标和指标体系的定义及指标的类型、建立指标体系的基本原则及其结构、功能等进行了论述。 相似文献
18.
19.
Eiji Yanagisawa 《Disasters》1983,7(4):259-265
A strong earthquake of magnitude of 7.7 hit the northeast part of Japan on 26th May 1983. Because 100 persons were killed by tsunami, the disaster created a sensation throughout Japan, but there was also a large amount of damage to structures due to the earthquake. Highways, railways, bridges, harbours, levees and private houses were damaged severely in Aomori and Akita prefectures. A great portion of the damage was caused by liquefaction of sand.
This is a prompt report of earthquake damage to structures due to liquefaction. The paper describes general aspects of the damage to structures, with some typical examples are mentioned in more detail. Preliminary results of investigation after the earthquake are also presented to describe the liquefaction phenomena in the earthquake. 相似文献
This is a prompt report of earthquake damage to structures due to liquefaction. The paper describes general aspects of the damage to structures, with some typical examples are mentioned in more detail. Preliminary results of investigation after the earthquake are also presented to describe the liquefaction phenomena in the earthquake. 相似文献