Engineering Influence of Debris Flows in  the Reservoir Area ofZhongbo Hydropower Station in Tibet

CHENG Ying-jian; SHI Yu-chuan; SHI Sheng-wei; WANG Jing-yong

doi:10.3969/j.issn.1001-5485.2014.12.011

PDF(1536 KB)

Journal of Changjiang River Scientific Research Institute ›› 2014, Vol. 31 ›› Issue (12) : 54-58. DOI: 10.3969/j.issn.1001-5485.2014.12.011

ENGINEERING SAFETY AND DISASTER PREVENTION

Engineering Influence of Debris Flows in the Reservoir Area of
Zhongbo Hydropower Station in Tibet

CHENG Ying-jian^1,2, SHI Yu-chuan³, SHI Sheng-wei^1,2, WANG Jing-yong⁴

Author information +

History +

Abstract

Zhongbo hydropower station is located in the lower reaches of the Yuqu River, Qamdo of Tibet. Investigation shows that 8 large debris flow gullies develop in the reservoir area. By analyzing the geological environment of debris flows, we assessed the risk degree of debris flows. We also analyzed the impacts of debris flows on the project in detail, such as river blocking, collision siltation and reservoir sedimentation. Results suggest that (1) none of the debris flows have confluence conditions for blocking rivers; (2) the total sediment of debris flows will reach 3,017,700 m³ in the later century, accounting for 1.125% of the total reservoir capacity; (3) we should focus on the Zhala gully near the dam because it has high risk of debris flow and directly threatens the construction safety in the hydro-junction area.The research results are of practical significance for hydraulic design and disaster prevention.

Key words

Zhongbo hydropower station / Yuqu River / reservoir debris flow / development feature / risk degree / engineering influence

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

CHENG Ying-jian, SHI Yu-chuan, SHI Sheng-wei, WANG Jing-yong. Engineering Influence of Debris Flows in the Reservoir Area of
Zhongbo Hydropower Station in Tibet[J]. Journal of Changjiang River Scientific Research Institute. 2014, 31(12): 54-58 https://doi.org/10.3969/j.issn.1001-5485.2014.12.011

References

[1] 刘希林, 唐川. 泥石流危险性评价[M]. 北京:科学出版社, 1995. (LIU Xi-lin, TANG Chuan. Assessment of the Hazard Degree of Debris Flow[M]. Beijing: Science Press, 1995. (in Chinese))
[2] 唐川, 黄润秋, 黄达 ,等. 金沙江美姑河牛牛坝水电站库库区泥石流对工程影响分析[J]. 工程地质学报, 2006,14(2):45-51. (TANG Chuan, HUANG Run-qiu, HUANG Da, et al. Impacts of Debris Flows on the Reservoir of a Hydropower Station in the Meigu River of Jinshajiang[J]. Journal of Engineering Geology, 2006, 14(2): 45-51. (in Chinese))
[3] 李文强, 石豫川, 王敬勇. 雅鲁藏布江中游某水电站库区泥石流工程影响分析[J].水文地质工程地质, 2013, 40(1):89-92. (LI Wen-qiang, SHI Yu-chuan, WANG Jing-yong. Impacts of Debris Flows on the Reservoir of a Hydropower Station in the Middle of the Yarlung Zangbo River[J]. Hydrogeology & Engineering Geology, 2013, 40(1): 89-92. (in Chinese))
[4] DZ/T 0220—2006 ,泥石流灾害防治工程勘查规范[S]. 北京: 中国标准出版社, 2006. (DZ/T 0220—2006, Specification of Geological Investigation for Debris Flow Stabilization[S]. Beijing: Standards Press of China, 2006. (in Chinese))
[5] 陈德明, 王兆印, 何耘. 泥石流入汇对河流影响的实验研究[J].泥沙研究, 2002, 6(3):22-28. (CHEN De-ming, WANG Zhao-yin, HE Yun. Experimental Study on the Fluvial Process of Debris Flow Discharging into River[J]. Journal of Sediment Research,2002, 6(3):22-28. (in Chinese))
[6] 张金山, 林伟. 蒋家沟入汇河段泥石流堆积与输移特征分析[J].长江科学院院报, 2013, 30(5):27-33. (ZHANG Jin-shan, LIN Wei. Characteristics of Debris Flow Deposit and Transport in the Confluence Reach of Jiangjia Ravine[J]. Journal of Yangtze River Scientific Research Institute, 2013, 30(5): 27-33. (in Chinese))
[7] 朱平一, 程尊兰, 游勇. 川藏公路培龙沟泥石流输砂堵江成因探讨[J]. 自然灾害学报, 2002, 9(1):80-83.(ZHU Ping-yi, CHENG Zun-lan, YOU Yong. Research on Causes of River Blocking by Sediment Delivery of Peilonggou Gully Debris Flow in the Sichuan-Xizang Highway[J]. Journal of Natural Disasters,2000, 9(1):80-83. (in Chinese))
[8] 韦方强, 胡凯衡, 崔鹏, 等. 蒋家沟泥石流堵江成因与特征[J]. 水土保持学报, 2002, 16(6):71-75.(WEI Fang-qiang, HU Kai-heng, CUI Peng, et al. Characteristics and Origin of Debris Flow of Jiangjiagou Valley Blocking[J]. Journal of Soil and Water Conservation, 2002, 16(6): 71-75. (in Chinese))
[9] 崔鹏, 何易平, 陈杰, 等. 泥石流输沙及其对山区河道的影响[J]. 山地学报, 2006, 24(5):539-549.(CUI Peng, HE Yi-ping, CHEN Jie, et al. Debris Flow Sediment Transportation and It’s Effects on Rivers in Mountain Area[J]. Journal of Mountain Science, 2006,24(5):539-549.(in Chinese))
[10]张宇, 韦方强, 贾松伟,等. 砖砌体建筑在泥石流冲击力作用下动态响应实验[J]. 山地学报, 2006,24(3):340-345.(ZHANG Yu, WEI Fang-qiang, JIA Song-wei, et al. Experimental Research of Unreinforced Masonry Wall under Dynamic Impact of Debris Flow[J]. Journal of Mountain Science, 2006,24(3):340-345.(in Chinese))
[11]李彦军, 刘汉超, 石豫川. 四川某电站库区泥石流的特征研究[J]. 水土保持研究, 2005, 13(3): 194-197. (LI Yan-jun, LIU Han-chao, SHI Yu-chuan. Analysis of Debris Flows Characteristics of the Reservior Area of a Power Station in Sichuan[J]. Research of Soil and Water Conservation, 2005,13(3):194-197.(in Chinese))
[12]HARDJOSUWARNO S, SOEWARNO. Reservoir Sedimentations Due to Debris Flow and Its Measures in Wlingi, East Java and Bili-bili, South Sulawesi[J]. Journal of Applied Sciences in Environmental Sanitation,2008,3(2):73-78.
[13]敖汝庄, 郭志学, 曹叔尤. 泥石流入汇主河淤积规律的水槽试验研究[J].水土保持学报, 2004,18(4):196-199.(AO Ru-zhuang, GUO Zhi-xue, CAO Shu-you. Flume Experiment Study on Deposit Principle of Debris Flow when Debris Flow Confluence with Main River[J]. Journal of Soil and Water Conservation, 2004,18(4):196-199.(in Chinese))