共查询到20条相似文献，搜索用时 21 毫秒
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在工作实践的基础上,详细说明大震应急图纸在地震救灾、灾后重建、地震现场科学考察、工程开发、地震预报综合研究、大震应急现场指挥等方面的重要作用;认真分析了目前管理和使用大震应急图纸的弊端以及图纸数字化建设的必要性;重点阐述大震应急图纸数字化建设的思路、方法和任务。 相似文献
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地震应急灾情信息分类探讨 总被引：5，自引：4，他引：1
收集并整理了多次地震后的灾情信息,结合各类灾情信息的特征和地震应急指挥决策的要求,重点关注地震前灾区的基础信息和震后的地震现场信息,以服务和服从地震应急指挥和抗震救灾为重要目标,将地震应急灾情信息分为震情信息、震区背景信息、灾情信息和应急响应与救援四大类.信息分类结果便于灾情的快速分析与处理,对提高应急决策、救援效率以及应急处置能力具有重要意义. 相似文献
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N. N. Ambraseys 《Bulletin of Earthquake Engineering》2014,12(1):5-43
This article examines the contribution of Ottoman sources of historical information for the study of the seismicity of Greece, in particular of Athens during the period of the Ottoman domination, a period during which relatively few original Greek sources of data are available. An annotated list of a number of case histories of earthquakes in Greece from Ottoman sources is presented translating only a summary of the information for those who want to access the whole document. They contain not only a valuable record of earthquakes, but also, for the earthquake historian, a wealth of information about locations where earthquakes were not felt. The article discusses the effects of earthquakes, of the 1826–7 siege on the Acropolis its purpose being to provide information with such annotation as would facilitate its use by engineering seismologists with additional macroseismic data that could supplement the rather meagre information. 相似文献
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国家防震减灾中心技术系统的建设 总被引：1，自引：0，他引：1
主要介绍了中国地震局在“九五”期间建立起来的国家防震减灾中心技术系统及它所包含的7个中心的基本功能和作用。该防震减灾中心技术系统,为我国地震和地球科学研究提供了各类基础性观测数据和信息。也是我国灾害性地震应急指挥的工作场所。 相似文献
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传统三维城市规划模型是利用三维技术通过计算机生成模型对城市进行规划,没有考虑城市地理位置因素,不能保障城市震后应急救灾工作效率。为此,构建一种新的地震带城市规划模型。通过对城市抗震防灾空间及防灾分区定义,并对其规划原则进行分析,从而为城市防灾空间规划提供依据;以此为基础,采用风险评估方法构建出地震带城市抗震防灾空间规划的基本模型。实验结果表明,所设计模型性能极佳,考虑到了城市地理因素,在进行城市规划的同时,能够促进城市震后应急救灾工作的高效运行。 相似文献
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Ding Xiang 《中国地震研究》2004,18(2):125-130
The China‘ s Earthquake Cases and Disaster Information System based on GIS (MapECDIS2002 for Windows) is a GIS system developed to provide a tool for the government and the public to inquire and learn about disaster information (since 2221BC) and case study results (since 1966) of destructive earthquakes in China. The system is expected to be helpful, as an applied supplementary tool, for scientists and management personnel in earthquake prediction practice, seismological research and earthquake disaster research. The design idea and main functions of the system are introduced in the paper. 相似文献
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On 31 October and 1 November 2002, two earthquakes took place in the Italian region of Molise. 29 deaths were reported, while
many buildings collapsed or suffered major damage. The tectonics of the earthquakes and historic seismicity of the area are
briefly described. The distribution of damage and macroseismic intensity are confronted with the current seismic zonation
of the region. In particular, the paper deals with the damage suffered by different types of structures, namely masonry and
RC buildings and historical churches. The observed damage is mainly attributed to the poor quality of the materials and execution
of construction, lack of maintenance and protective devices (e.g., steel ties), as well as to structural interventions. Reference
is made to the management of the post-earthquake emergency.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
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E. Sokos G.-A. Tselentis P. Paraskevopoulos A. Serpetsidaki A. Stathopoulos-Vlamis A. Panagis 《Bulletin of Earthquake Engineering》2016,14(9):2531-2542
Patras is the third largest city in Greece and an ideal candidate for earthquake early warning (EEW) applications due to its high seismic hazard, its existing research infrastructure and the presence of critical structures such as the Rion-Antirion bridge. Patras is located a few hundred kilometres from the Hellenic Arc, where very strong and potentially damaging earthquakes occur. This distance is large enough to allow a few tens of seconds of warning time prior to significant shaking, provided earthquakes are timely detected by a dense seismic network. Within the framework of the EC-funded project REAKT, the Virtual Seismologist (VS) EEW software was installed at Patras Seismological Laboratory. Its initial performance evaluation is presented here. In general VS provides magnitudes similar to the official, manually revised ones. Given the current station density and network telemetry, the average time that VS needs to deliver the first magnitude estimate is rather large, of the order of tens of seconds and not yet satisfactory for routine operational use of EEW. Even so, the system is able to provide up to 10 s of warning time prior to S-wave arrivals for events occurring on the Hellenic Arc. Our results indicate that the seismic networks in Greece need enhancements for regional EEW, either by adding stations or by upgrading the hardware to reduce delays. The application of an EEW system in the area is promising and, once operational, capable of mitigating earthquake risk. 相似文献
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基于GIS的中国灾害性地震震例与灾情信息系统研究 总被引：3，自引：0，他引：3
基于GIS的中国灾害性地震震例与灾情信息系统(MapECDIS 2002 for window)是为政府和公众查询与了解中国破坏性地震的灾情信息和中国历年积累的地震震例研究成果的GIS应用系统。本文介绍了该系统的设计思路和主要功能。 相似文献
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根据镇江地震地质情况及防震减灾工作实际,通过需求分析及系统整体设计,建立基于WebGIS的地震信息数据库管理系统。系统采用Oracle数据库、JavaScript语言、Tomcat网站服务器,开发了具有地方特色的地震应急处置快速反应系统,系统可实现震后快速评估、辅助决策、震后趋势分析、震后应急资料产出等功能。实际应用表明,该系统达到了低成本、高效率的预期目标。 相似文献
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In this study we performed a classical spectrum analysis of seismic waveforms recorded at far field stations of the great
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Constantine C. Spyrakos Charilaos A. Maniatakis John Taflambas 《Soil Dynamics and Earthquake Engineering》2008,28(9):738-753
The study presents the results of an investigation that identifies among the available records in Greece those that reveal near-source characteristics, using a procedure based on damage potential parameters. The findings reaffirm the opinion that earthquakes with magnitude less than M=6.0 present near-source phenomena that can cause severe damage to relatively stiff structures, common in urban areas. Spectra from selected accelerograms of near-source records are compared with the corresponding elastic spectra of the current Greek Seismic Code, (EAK 2000), the impulsive character of the Greek near-source records is ascertained and shortcomings of EAK 2000 to account for near-source effects are demonstrated.Based on records from seismic events in Greece and records from international earthquakes of small-to-moderate magnitude, the study demonstrates that there exists a near-source magnitude-distance region, where the velocity pulses have smaller amplitude and period in comparison with earthquakes of great magnitude. A simplified representation of three pulse types is, also, adopted for near-source events. It is found that the type-A pulse related to permanent displacement phenomena does not characterize Greek records. In addition a simple criterion is developed to identify the most appropriate simplified pulse type for near-source seismic events independently of magnitude. 相似文献
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In the last years, continuous recordings of electromagnetic emissions from geophysical observatories have been recognized to exhibit characteristic fluctuation patterns prior to some major earthquakes. To further evaluate and quantify these findings, this work presents a detailed assessment of the time-varying correlation properties of such emissions during the preparatory phases preceding some recent earthquakes in Greece and Italy. During certain stages before the earthquakes’ occurrences, the electromagnetic variability profiles are characterized by a marked increase in the degree of organization of fluctuations, which allow developing hypotheses about the underlying physical mechanisms. Based on the preparatory phases of selected seismic events, the information provided by different statistical properties characterizing complementary aspects of the time-varying complexity based on temporal correlations is systematically assessed. The obtained results allow further insights into different pre-seismic stages based on the variability of electromagnetic emissions, which are probably associated with distinct geophysical processes. 相似文献
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A. Ya. Sidorin 《Seismic Instruments》2010,46(4):351-355
A search for technogenic effects in the time series of earthquakes in Greece is carried out. The ine- quality of intra-week distributions of earthquakes including the events of M ≥ 3.7 is shown. Sharp changes in the pattern of Rayleigh-Schuster’s hodograph for the diurnal periodicity of earthquakes were revealed. They are located in the time vicinity of the moments of the equinox. The result supports the idea of the natural gen- esis of the diurnal periodicity of earthquakes and the important role of the Sun. 相似文献