吉林大学学报(地球科学版) ›› 2015, Vol. 45 ›› Issue (6): 1789-1797.doi: 10.13278/j.cnki.jjuese.201506202

• 地质工程与环境工程 • 上一篇    下一篇

黄河上游德恒隆-锁子滑坡堵塞黄河事件

郭小花1, 卢玉东1, 李小林2, 孙政3, 李重阳4, 张蓉1   

  1. 1. 长安大学环境科学与工程学院/旱区地下水与生态效应教育部重点实验室, 西安 710064;
    2. 青海省环境地质勘查局, 西宁 810007;
    3. 青海工程勘察院, 西宁 810016;
    4. 四川地勘局915水文地质工程地质队, 成都 610012
  • 收稿日期:2014-02-21 发布日期:2015-11-26
  • 通讯作者: 李小林(1958),男,教授级高级工程师,主要从事水文地质、工程地质、灾害地质方面的研究,E-mail:lxl906@163.com。 E-mail:lxl906@163.com
  • 作者简介:郭小花(1986),女,博士研究生,主要从事地质工程工作,E-mail:cocofish1986@qq.com
  • 基金资助:

    国家自然科学基金项目(41172168)

Event of Block up of Upper Yellow River by Dehenglong-Suozi Landslides

Guo Xiaohua1, Lu Yudong1, Li Xiaolin2, Sun Zheng3, Li Chongyang4, Zhang Rong1   

  1. 1. Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education/School of Environmental Science and Engineering, Chang'an University, Xi'an 710064, China;
    2. Environmental Geological Prospecting Bureau of Qinghai Province, Xining 810007, China;
    3. Engineering Investigation Institute of Qinghai Province, Xining 810016, China;
    4. Hydrology and Engineering Geology Department 915, Geological Investigation Institution of Sichuan Province, Chengdu 610012, China
  • Received:2014-02-21 Published:2015-11-26

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摘要：

黄河上游龙羊峡刘家峡河段两岸岸坡形成了众多残留体积超过108 m3的古巨型滑坡,最大体积近30×108 m3,且大部分堵塞过黄河。但部分巨型滑坡至今未有学者进行科学研究,其中包括德恒隆滑坡和锁子滑坡。结合区域地质环境条件,通过对德恒隆-锁子两个巨型滑坡基本特征和滑坡堵塞黄河的野外7个地质现象进行分析,并对德恒隆-锁子滑坡形成机制进行初步探讨,认为德恒隆-锁子滑坡为地震型滑坡,且形成原因与青藏高原8万 a的构造期有密切关系。通过分析黄河沿岸堰塞湖湖相沉积,认为堰塞湖形成时间为8万 a左右,这与德恒隆-锁子滑坡的形成年代一致。因此德恒隆-锁子滑坡在地震作用下触发并堵塞黄河。

关键词: 黄河上游, 巨型滑坡, 堰塞湖, 地震型滑坡, 德恒隆-锁子滑坡

Abstract:

Giant landslides (1×108 m3) are common along the upper Yellow River from Longyang Gorge to Liujia Gorge. The largest one on record reached 30×108 m3, which had ever blocked and dammed the Yellow River. The study on the mechanism of giant landslides along the upper Yellow River would be important for construction engineering and countermeasures to prevent from any undesirable events. The author analyzed seven geological occurrences, and concluded that Dehenglong landslide and Suozi landslide occurred during 70-80 ka. They were triggered by an earthquake and dammed up the Yellow River at that time. They had a close relationship with the tectonic movement in Qinghai-Tibetan Plateau before ca. 80 ka, which is evidenced by the existence of the dammed lakes caused by Dehenglong-Suozi landslides.

Key words: the upper Yellow River, giant landslides, dammed lake, earthquake-triggered landslides, Dehenglong-Suozi landslides

中图分类号: 

  • P642.23

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