搜索结果: 1-15 共查到“知识库 灾害物理学”相关记录55条 . 查询时间(1.922 秒)
浅析输电线路塔基山体滑坡及防控措施（图）
山体滑坡 原因分析 防控措施
2023/8/14
结合近年来南方电网部分地区输电线路塔基山体滑坡现象频发，严重威胁到电网的安全稳定运行，本文通过山体滑坡现象、滑坡的特征和原因分析，针对滑坡形成的主要诱因，从设计和施工阶段提出了防控措施。
以麻柳林滑坡为例，选取了内摩擦角、粘聚力、渗透系数、浸没率、库水位下降速率及降雨量等6个因素进行了正交试验，采用极差分析法进行了稳定性敏感分析.结果表明，滑坡稳定性及其变化率主要由内因决定，库水和降雨对其影响较小.滑坡稳定性对内摩擦角最敏感，其次依次为渗透系数、粘聚力和浸没率.滑坡初始稳定性主要由内摩擦角和粘聚力决定.滑坡稳定性随浸没率的降低而逐步增加，但增幅较小；渗透系数对滑坡稳定系数变化率的影...
ON THE USE OF CITSCI AND VGI IN NATURAL HAZARD ASSESSMENT
Geosciences Citizen Science CitSci Volunteer Geographical Information VGI
2019/2/27
The developments in the geospatially-enabled mobile communication technologies have opened new horizons in many fields of geosciences research, especially in those where data collection, processing an...
FIRE EVACUATION SIMULATION CONSIDERING THE MOVEMENT OF PEDESTRIAN ACCORDING TO FIRE SPREAD
Fire evacuation simulation Floor field model, Fire dynamics simulator Indoor evacuation Fire spread field Fire recognition field
2018/11/9
A fire simulator and an evacuation simulator are generally used independently to diagnose the safety of a building in the case of the fire and evacuation. However, it is hard to provide highly accurat...
VULNERABILITY MAPPING AND ANALYSIS: AN IMPLEMENTATION IN GEOHAZARD AREAS IN SABAH
Landslide vulnerability Geospatial Landslide risk
2018/11/9
Vulnerability identifies the element-at-risk as well as the evaluation of their relationships with the hazard. The relationships relate the landslide potential damages over a specific element-at-risk....
DISASTER MONITORING AND EMERGENCY RESPONSE SERVICES IN CHINA
Emergency Response Service Disasters Satellite data Earth Observations
2018/5/15
The Disaster Monitoring and Emergency Response Service(DIMERS) project was kicked off in 2017 in China, with the purpose to improve timely responsive service of the institutions involved in the manage...
THE TRANSMISSION CHANNEL TOWER IDENTIFICATION AND LANDSLIDE DISASTER MONITORING BASED ON INSAR
Transmission Channel Transmission Tower Identification InSAR Time Series D-InSAR Landslide Monitoring
2018/5/14
The transmission distance of transmission lines is long, the line affected by the diversity of climate and topography of the corridors of transmission lines, differences in regional geological structu...
全球重大自然灾害正深刻影响着人类的生存和发展，如何更有效地应对各类自然灾害尤为重要。2008年“5·12”汶川大地震后，“地球人都要有灾害意识，地球人都要有灾害教育”已深入人心，中国人的灾害意识和防灾技术水平均得到了较大幅度的提升。由于独特的区域地质构造、地形地貌和水文气象等条件，中国西部地区一直是水灾害频发的区域，防灾减灾工作已成为影响区域社会经济及国家整体发展的重要方面。作为国家布局在西部的高...
ANALYSIS OF THE TEMPORAL AND SPATIAL CONTROLLING FACTORS IN AFFECTING THE ACCURACY OF LANDSLIDE PREDICTING MODEL AT TAIWAN
controlling factor LSM AUC model
2018/4/18
Most of the landslides are triggered by rainfall, earthquake or the joint effect from both. Landslide inventory map by GIS via remote sensing offer the spatial distribution of it across certain extern...
ANALYSIS OF HEIGHT MODELS BASED ON KOMPSAT-3 IMAGES
Kompsat-3 image geometry height model SGM area based matching
2018/4/18
Height models are basic information required for disaster Management. Not in any case satisfying and actual height models are available, but they can be generated by satellite stereo pairs being more ...
EXPLOITING MULTI-TEMPORAL SENTINEL-1 SAR DATA FOR FLOOD EXTEND MAPPING
Flood Disaster Sentinel-1 Threshold Change detection Deep learning
2018/4/18
Recently, global climate change is one of the biggest challenges in the world. Dense downfall and following catastrophic floods are one of the most destructive natural hazards among all. Consequences ...
基于变形分析的边坡潜在滑面的确定
边坡稳定性 有限元法 潜在滑移线
2014/2/25
基于弹塑性有限元分析的计算结果，提出了二维情况下边坡潜在滑移线应满足的一个常微分方程组初值问
题，给出了该初值问题的预测-校正算法以及确保其收敛的充分必要条件，讨论了潜在滑移线的自动搜寻技术。最
后，分别与极限分析法和极限平衡法的计算结果进行了对比，验证了方法的有效性。
预测全球今年2月的引力异常日所发生的灾害准确率几乎是100％
三星一狭长带 引力异常期 地球 灾害
2015/6/4
2012年2月地球上共有下列17天是处在受到天体引力异常影响 02/07 一月十六日 二 增引力 02/08 一月十七日 三 增引力, 半增引力 02/09 一月十八日 四 两头增引力 02/10 一月十九日 五 增引力 02/11 一月廿日 六 两头增引力 02/12 一月廿一日 日 两头增引力 02/13 一月廿二日 一 增引力 02/14 一月廿三日 二 两头增引力 02/15 一月廿四日 ...
2012年1月地球上共有下列19天是处在受到天体引力异常影响 01/01 十二月八日 日 增引力 01/02 十二月九日 一 两头增引力 01/03 十二月十日 二 增引力 01/04 十二月十一日 三 半增引力 01/09 十二月十六日 一 增引力 01/14 十二月廿一日 六 增引力 01/15 十二月廿二日 日 两头增引力 01/16 十二月廿三日 一 减引力 01/17 十二月廿四日 二 ...