[1]刘建康,程尊兰,佘 涛.云南鲁甸红石岩堰塞湖溃坝风险及其影响[J].山地学报,2016,(02):208-215.[doi:10.16089/j.cnki.1008-2786.000120]
　LIU Jiankang,CHENG Zunlan,et al.Assessment of Dam Failure and Secondary Hazards for HongshiyanDammed Lake Caused by Ludian Earthquake in Niulanjiang River[J].Mountain Research,2016,(02):208-215.[doi:10.16089/j.cnki.1008-2786.000120]
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云南鲁甸红石岩堰塞湖溃坝风险及其影响()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2016年02期
页码:
208-215
栏目:
山地灾害
出版日期:
2016-04-01

文章信息/Info

Title:
Assessment of Dam Failure and Secondary Hazards for Hongshiyan Dammed Lake Caused by Ludian Earthquake in Niulanjiang River
作者:
刘建康1; 2;  程尊兰3; 佘 涛1; 2
1.中国地质科学院探矿工艺研究所,四川 成都 611734; 2.中国地质调查局地质灾害防治技术中心,四川 成都 611734; 3.中国科学院成都山地灾害与环境研究所/中国科学院山地灾害与地表过程重点实验室,四川 成都 610041
Author(s):
LIU Jiankang1;  2;  CHENG Zunlan3;  SHE Tao1;  2
1. Institute of Exploration Technology, CAGS, Chengdu 611734, China; 2. Technical Center for Geological Hazard Prevention and Control,CGS, Chengdu 611734, China; 3. Key Lab of Mountain Hazards and Surface Processes, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041,China
关键词:
鲁甸地震; 红石岩堰塞湖; 牛栏江; 溃决; 风险控制
Keywords:
Ludian Earthquake;  Hongshiyan dammed lake;  Niulanjiang River;  dam break;  risk management
分类号:
P642.2
DOI:
10.16089/j.cnki.1008-2786.000120
文献标志码:
A
摘要:
红石岩堰塞湖是2014-08-03鲁甸地震诱发形成的大型堰塞湖,由红石岩崩塌堵断牛栏江形成。红石岩堰塞坝坝高约96 m,堆积体总方量约1 200×104 m3,湖区满库库容为2.6×108 m3。从红石岩堰塞湖形成的背景条件,以及堰塞湖对坝址所在流域构成的潜在灾害链效应,评估堰塞湖的溃决危险程度。同时根据可能的溃决形式分析,采用1/3和1/2溃决模式对堰塞湖溃坝洪水估算,得到两种工况条件下的峰值流量分别为:Qp≈(1.3～1.5)×104 m3/s和Qp≈(2.2～2.8)×104 m3/s,远超过坝址处500 a一遇的牛栏江暴雨洪水,并在此基础上对下游演进过程的洪水进行估算。认为红石岩堰塞湖在后期整治中仍存在库岸稳定、堰塞坝稳定和鱼类生态破坏等问题,应引起关注。
Abstract:
Hongshiyan is a huge dammed lake induced by Ludian Earthquake on August 3, 2014, and formed by a large landslide blocking the Niulanjiang River. Hongshiyan dam is about 96m in height and 1 200×104 m3 in volume, with a capacity of 2.6×108 m3 in the reservoir. This article reveals the forming conditions of Hongshiyan dam in topography, geology and water source, analyses the potential chain effects impacted on the nearby area, and assesses the risk of dam break. Hongshiyan dam is distinguished as a high level of failure risk by using a method of Dimensionless Blockage Index, and outburst floods under different breach mode are estimated. By calculating, the peak discharge are Qp≈(1.3～1.5)×104 m3/s in 1/3 height of dam and Qp≈(2.2～2.8)×104 m3/s in 1/2 height, which are much larger than the 500-year flood in section. Finally, risk management for Hongshiyan dammed lake is summarized and analyzed, problems of the stability of Hongshiyan dam and banks aside the lake, and the ecological destruction of fish are proposed.

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备注/Memo

备注/Memo:
收稿日期(Received date):2015-05-30; 改回日期(Accepted): 2015-11-20。 基金项目(Foundation item):国家自然科学基金项目(41402315); 中国地质调查局项目(12120113011000); 交通部西部交通建设科技项目(201231874004-2, 2009318797029)。[This research was financially supported by national natural science foundation of china(41402315); China geological survey project(12120113011000), and the West Traffic Construction Science and Technology Project of Ministry of Communications(201231874004-2, 2009318797029).] 作者简介(Biography):刘建康(1985-), 男(汉),博士, 岩土工程专业,主要从事山地灾害研究。[Liu Jiankang(1985-), male, Han nationality, born in Zigong of Sichuan, major in mountain hazards and prevention methods study.] Email: j_jiankang@hotmail.com
更新日期/Last Update: 1900-01-01