| 肃南观山河源区泥石流特征及其治理 |
| |
| 引用本文： | 姚兴荣,丁宏伟,赵玉苹,毛 岳,曹晓辉,赵荣昌.肃南观山河源区泥石流特征及其治理[J].甘肃地质学报,2012(3):56-60. |
| |
| 作者姓名： | 姚兴荣 丁宏伟 赵玉苹 毛 岳 曹晓辉 赵荣昌 |
| |
| 作者单位： | [1]甘肃省地矿局水文地质工程地质勘察院,甘肃张掖734000 [2]甘肃地质工程勘察院,甘肃张掖734000 |
| |
| 基金项目： | 甘肃省国土资源厅“甘肃省舟曲县地质灾害治理工程施工项目”资助 |
| |
| 摘 要： | 以野外实际调查资料为依据,在浅述区域地质环境概况的基础上,深入分析了泥石流形成条件,认为陡峭的山体、密集发育的沟谷以及较大的沟谷比降、丰富的松散固体物质储备,对短时间内汇集大量的水石极为有利,同时也为泥石流的发育和形成提供了强大的势能和物质来源,而下游海子湖相对宽阔的扇形地又为泥石流提供了充足的堆积场所,＂7.29＂短历时、高强度、集中式的强降水是泥石流形成的激发因素;泥石流类型为典型的强降雨坡面侵蚀型中频稀性沟谷型发展期泥石流,其形成区、流通区及堆积区的界线较明显;提出了＂拦＋固＋清淤＋护＋排导＂泥石流综合治理方案。
|
| 关 键 词： | 泥石流 形成条件 类型 特征 治理方案 肃南 |
CHARACTERISTIC AND DISASTER PREVENTION MEASURES OF DEBRIS FLOW IN THE SOURCE AREA OF GUANSHAN RIVER IN SUNAN COUNTY |
| |
| YAO Xing-rong,DING Hong-wei,ZHAO Yu-ping,MAO Yue,CAO Xiao-hui and ZHAO Rong-chang.CHARACTERISTIC AND DISASTER PREVENTION MEASURES OF DEBRIS FLOW IN THE SOURCE AREA OF GUANSHAN RIVER IN SUNAN COUNTY[J].Acta Geologica Gansu,2012(3):56-60. |
| |
| Authors: | YAO Xing-rong DING Hong-wei ZHAO Yu-ping MAO Yue CAO Xiao-hui and ZHAO Rong-chang |
| |
| Institution: | 1.Institute of Hydrogeoloical and Engineering Geology,Gansu Provincial Bureau of Geology and Mineral Exploitation and Development,Zhangye 734000,China; 2.Geology Engineering Institute of Gansu Province,Zhangye 734000,China) |
| |
| Abstract: | According to field survey data and on the basis of brief Introduction overview of the regional geological environment,depth analysis the formation conditions of the debris flow,the paper concluded that the steep mountain,Intensive development of the valley and the valley slope,prolific loose solid material reserves on a short time to bring together a large amount of water stone were extremely beneficial,but also provided a powerful potential energy and material sources for the development and formation of debris flow,and located in the downstream lakes of HaiZi was relatively wide fan-shaped region that could provide for the debris flow a sufficient accumulation of place.The short duration,high intensity,centralized heavy precipitation in May Twelve is the motivating factor of debris flow formation;this is a heavy rainfall,slope erosion,in the frequency,thin valley type and development debris flow,and its formation area,circulation area and deposition area boundaries are more obvious;At the end of the article,the authors propose The Program of mudslides comprehensive governance that including ＂intercept＋reinforcement＋desilting＋and protection＋diversion＂. |
| |
| Keywords: | debris flows formation conditions type characteristics governance programs |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《甘肃地质学报》浏览原始摘要信息 |
| 点击此处可从《甘肃地质学报》下载免费的PDF全文 |
|
