| 李健雄,蒋发堂,曹月红,罗海东,吴顺彬,师晓文,王建.四川省九寨沟县8·8强震后暴雨沟谷型泥石流发育特征——以漳扎镇纳休沟为例[J].矿产勘查,2023,14(11):2237-2244 |
| 四川省九寨沟县8·8强震后暴雨沟谷型泥石流发育特征——以漳扎镇纳休沟为例 |
| Development characteristics of rain-type debris flow after Jiuzhaigou earthquake：A case study of Naxiugou in Zhangzha Town |
| 投稿时间：2022-01-20 修订日期：2023-06-10 |
| DOI：10.20008/j.kckc.202311024 |
| 中文关键词: 九寨沟地震 泥石流 灾害治理方案 拦挡坝 排导槽 |
| 英文关键词: Jiuzhaigou earthquake debris flow treatment scheme of geological disaster retaining dam drain guide |
| 基金项目:本文受四川省自然资源厅8·8九寨沟地震灾后恢复重建地质灾害治理项目（20170225）资助。 |
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| 中文摘要: |
| 2017年8月8日四川省九寨沟县突发7.0级地震，破坏性地震过后引发次生地质灾害的概率极高。8·8强震对四川省九寨沟县域内崩塌、滑坡灾害产生明显作用，但是泥石流灾害由于先天具有隐蔽性和时差性的特点，灾前特征难于被精准识别。纳休沟位于8·8强震震中附近的漳扎镇，强震发生后的次年7月1日，纳休沟突发中型泥石流，造成了约200万元的经济损失。本文通过定性描述泥石流爆发前纳休沟的地形、主沟道、支沟道、堆积物等发育特征，对纳休沟泥石流发育特征和活动轨迹进行研究，预测其发展趋势，并提出科学的治理方案，对于震后暴雨沟谷型泥石流的防灾治理具有一定的参考意义。 |
| 英文摘要: |
| A magnitude of Ms 7.0 earthquake struck the Jiuzhaigou County， northwest of Sichuan Province on August 8th， 2017， after the destructive earthquake， secondary geological disasters occurred frequently， such as collapse， landslide and debris flow. Due to the characteristics of concealment and jet lag， debris flow disasters are difficult to identify， which are different from other geological disasters. Naxiugou located near the epicenter of Jiuzhaigou earthquake. On July 1st， 2018， a medium-sized debris flow broke out in Naxiugou， causing an economic loss of 2 million RMB. In this paper， in order to forecast its development trend and put forward a scientific treatment scheme， the characteristics of debris flow in Naxiugou are described in detail， including topography， main channel， branch channel and deposit. The development characteristics and activity track of debris flow in Naxugou are researched. The research results can contribute to the prediction and the treatment scheme about debris flow after the earthquake， under heavy rain conditions. |
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