Across the 12 provinces/autonomous regions/municipalities of West China (including Qinghai, Gansu, Shaanxi, Sichuan, Yunnan, Guizhou, Xinjiang, Tibet, Ningxia, Guangxi, Inner Mongolia and Chongqing) are widely distrib...Across the 12 provinces/autonomous regions/municipalities of West China (including Qinghai, Gansu, Shaanxi, Sichuan, Yunnan, Guizhou, Xinjiang, Tibet, Ningxia, Guangxi, Inner Mongolia and Chongqing) are widely distributed debris flows. According to investigation, there are more than 15 500 gullies of debris flow, threatening over 100 towns and counties. When the debris flow attacks, it can affect 23 sites each with a death toll of over 100. Debris flow is, therefore, an important eco environmental issue that must be addressed in the development of West China. In every priority, such as city construction, traffic & transportation (highways, railways, etc.), water conservancy, transfer of gas and electricity from west to east, and so on barges debris flow. By learning from the past experience with the control of debris flow, we can reduce the disaster and boost the development of the western regions of China.展开更多
通过对宁夏吴忠市利通区利红路泥石流进行详细调查,结合现场勘查、测绘与室内试验分析,总结了泥石流的地质环境背景,认为地形地貌、地层岩性、气象水文、物理地质现象以及人类工程活动等是该泥石流发生的主要决定因素;揭示了泥石流的主...通过对宁夏吴忠市利通区利红路泥石流进行详细调查,结合现场勘查、测绘与室内试验分析,总结了泥石流的地质环境背景,认为地形地貌、地层岩性、气象水文、物理地质现象以及人类工程活动等是该泥石流发生的主要决定因素;揭示了泥石流的主要发育特征,并计算得到泥石流的基本物理力学参数,包括泥石流容重为1.508 k N/m3,流速为8.03 m/s,断面峰值流量为16.06 m3/s,一次泥石流过程总量为5.84×104m3;在此基础上,通过定量、定性分析对泥石流的发展趋势进行了评价,认为该泥石流易发程度为易发,仍具有潜在危险性;综上,针对性地提出防治措施并给出初步设计方案。展开更多
文摘Across the 12 provinces/autonomous regions/municipalities of West China (including Qinghai, Gansu, Shaanxi, Sichuan, Yunnan, Guizhou, Xinjiang, Tibet, Ningxia, Guangxi, Inner Mongolia and Chongqing) are widely distributed debris flows. According to investigation, there are more than 15 500 gullies of debris flow, threatening over 100 towns and counties. When the debris flow attacks, it can affect 23 sites each with a death toll of over 100. Debris flow is, therefore, an important eco environmental issue that must be addressed in the development of West China. In every priority, such as city construction, traffic & transportation (highways, railways, etc.), water conservancy, transfer of gas and electricity from west to east, and so on barges debris flow. By learning from the past experience with the control of debris flow, we can reduce the disaster and boost the development of the western regions of China.
文摘通过对宁夏吴忠市利通区利红路泥石流进行详细调查,结合现场勘查、测绘与室内试验分析,总结了泥石流的地质环境背景,认为地形地貌、地层岩性、气象水文、物理地质现象以及人类工程活动等是该泥石流发生的主要决定因素;揭示了泥石流的主要发育特征,并计算得到泥石流的基本物理力学参数,包括泥石流容重为1.508 k N/m3,流速为8.03 m/s,断面峰值流量为16.06 m3/s,一次泥石流过程总量为5.84×104m3;在此基础上,通过定量、定性分析对泥石流的发展趋势进行了评价,认为该泥石流易发程度为易发,仍具有潜在危险性;综上,针对性地提出防治措施并给出初步设计方案。
