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供水管网震后流量监测点的动态分级优化布局研究 被引量:5
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作者 刘朝峰 兰玥 +1 位作者 张晓博 王威 《中国安全生产科学技术》 CAS CSCD 北大核心 2018年第1期12-17,共6页
为了提高管网地震监测点布局的准确性和合理性,基于管网微观水力计算模型和动态分级法,提出供水管网震后流量监测点的动态分级优化布局模型。首先,利用管网微观水力计算模型计算管段流量的影响系数,构建管段的影响系数矩阵,并利用信息... 为了提高管网地震监测点布局的准确性和合理性,基于管网微观水力计算模型和动态分级法,提出供水管网震后流量监测点的动态分级优化布局模型。首先,利用管网微观水力计算模型计算管段流量的影响系数,构建管段的影响系数矩阵,并利用信息熵确定管段权重;其次,标准化处理影响系数矩阵,通过聚类迭代提出供水管网地震流量监测点优化布局的动态分级方法,对供水管网震后流量监测点进行优化布置分级评定;最后,根据工程实例进行方法实践,结果表明:供水管网中的管线分类较为科学合理,地震监测点在供水管网上分布也比较均匀,而且该模型在一定程度上消除了人为因素的影响,保障了震时管网的监控效果和日常建设的合理性。 展开更多
关键词 供水管网 地震监测点 动态分级方法 水力分析 影响系数 聚类分析
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神奇的邦腊掌温泉
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作者 孙文波 《防灾博览》 2003年第3期43-43,共1页
出滇西重镇龙陵县城西北12公里,穿越一片茂盛的灌木林地,就到了位于香柏河畔的邦腊掌温泉。0.2平方公里的邦腊掌温泉出露区峰峦叠翠、林木葱郁、古藤盘道、峭岩奇石、泉水淙淙,一派古朴、神奇、粗犷的天然风貌。 今年1月,我们到邦腊掌开... 出滇西重镇龙陵县城西北12公里,穿越一片茂盛的灌木林地,就到了位于香柏河畔的邦腊掌温泉。0.2平方公里的邦腊掌温泉出露区峰峦叠翠、林木葱郁、古藤盘道、峭岩奇石、泉水淙淙,一派古朴、神奇、粗犷的天然风貌。 今年1月,我们到邦腊掌开会,又一次领略了邦腊掌冬季迷人的景象,更为她温煦的怀抱留连忘返。虽然是隆冬季节,这里的阳光依然是暖烘烘的,一眼眼热泉水热雾升腾,犹如仙境。 展开更多
关键词 邦腊掌温泉 人体 治疗作用 地质 地震监测点
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Study on the Determination of the Significant National Seismic Monitoring and Protection Regions
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作者 Zhang Guomin Fu Zhengxiang +1 位作者 Wang Xiaoqing Liu Guiping 《Earthquake Research in China》 2007年第1期1-15,共15页
The paper describes firstly the principles and scientific train of thought involved in determining the significant seismic monitoring and protection regions (SSMPR) in China. The principles include the gradation princ... The paper describes firstly the principles and scientific train of thought involved in determining the significant seismic monitoring and protection regions (SSMPR) in China. The principles include the gradation principle, i.e. the national level SSMPR and the provincial level SSMPR, the principle of highlighting priorities, namely, the area of an SSMPR should be a fraction of the total area of the country or of the respective province, but the earthquake losses incurred in SSMPR should be a major proportion of the national or provincial ones. The scientific train of thought adopted is to determine the SSMPR on the basis of seismic hazard assessment and loss estimation. Secondly, it reviews the achievements in determining the SSMPRs for the period from 1996 to 2005. The result shows that 10 strong earthquakes occurred during that period in the areas with earthquake monitoring and prediction capability available on the Chinese continent, 8 of which occurred in SSMPRs with the economic loss and death toll accounting for 67% and 92% of the total loss on the Chinese mainland. Lastly, the paper introduces preparatory research for determining the SSMPR for the period from 2006 to 2020, including decade-scale mid-and long-range seismic risk assessment based on seismology, seismogeology, geodesy, earthquake engineering, sociology and stochastics and so on, and the national seismic risk probability map, the seismic hazard (intensity) map, earthquake disaster losses map and the comprehensive seismic risk index, etc. obtained for the period of 2006 to 2020. 展开更多
关键词 Seismic hazard Seismic losses Significant seismic monitoring and protection region (SSMPR)
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