Mechanical Properties of Debris Passing Through Check Dam inGanjia Gully in the Midstream of Bailong River

YUAN Dong; LIU Jin-feng; YOU Yong; LIU Dao-chuan; SUN Hao; ZHANG Li

doi:10.11988/ckyyb.20161178

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Journal of Changjiang River Scientific Research Institute ›› 2018, Vol. 35 ›› Issue (2) : 44-50. DOI: 10.11988/ckyyb.20161178

Mechanical Properties of Debris Passing Through Check Dam inGanjia Gully in the Midstream of Bailong River

YUAN Dong^1,2,3,LIU Jin-feng^1,2,YOU Yong^1,2,LIU Dao-chuan^1,2,3,SUN Hao^1,2,3,ZHANG Li^1,2,3

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Abstract

Bailong River drainage basin is an area subjected to the most severe debris flow hazard, with debris gully density and debris flow frequency ranking top in China. Despite many treatments, debris flows have caused large casualty and property losses. In this paper, the current engineering mitigation works in Ganjia gully of Bailong River basin were analyzed through field investigation, and on this basis, the particle gradations, rheological behaviors, and shear strengths of debris deposits in the upstream and downstream of check dam were compared through particle size test, rheological test and direct shear test. Results suggest that check dam plays an insignificant role in adjusting the particle size of debris flow, but apparently alters the mechanical properties of debris flow. The shear stress of debris deposit slurry in the downstream of check dam is smaller than that in the upstream; while shear strength in the downstream is slightly larger than that in the upstream. In addition, the difference in grain size distribution of debris flow is an important factor that affects the rheological properties and shear strength. The results could be used as reference for the type selection and parameter design of check dam.

Key words

check dam / debris flow deposits / rheological behavior / shear strength / engineering mitigation

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YUAN Dong,LIU Jin-feng,YOU Yong,LIU Dao-chuan,SUN Hao,ZHANG Li. Mechanical Properties of Debris Passing Through Check Dam inGanjia Gully in the Midstream of Bailong River[J]. Journal of Changjiang River Scientific Research Institute. 2018, 35(2): 44-50 https://doi.org/10.11988/ckyyb.20161178

References

[1] 黄江成, 欧国强, 柳金峰. 白龙江干流泥石流分布特征及危险度评价 [J] . 人民黄河,2011,33(6):105-107.
[2] 孟兴民, 陈冠, 郭鹏, 等. 白龙江流域滑坡泥石流灾害研究进展与展望 [J] . 海洋地质与第四纪地质,2013,33(4):1-15.
[3] 陈晓清, 游勇, 崔鹏, 等. 汶川地震区特大泥石流工程防治新技术探索 [J] . 四川大学学报(工程科学版),2013,45(1):14-22.
[4] 李泳, 谢江, 周小军, 等. 泥石流颗粒的标度分布[J] . 四川大学学报(工程科学版),2013,45(1):1-7.
[5] 苟万春, 李泳, 王保亮, 等. 佳禾沟泥石流堆积物的粒度与强度关系分析[J] . 科学技术与工程,2015,15(35):120-123,144.
[6] 王裕宜, 胡凯衡, 韦方强, 等. 泥石流体的流变和冲淤特征及其与危险度的关系[J] . 自然灾害学报,2007,16(1):17-22.
[7] 胡正红, 张婧, 刘兴年, 等. 泥石流浆体流变特性影响因素试验研究[J] . 水力发电学报,2014,33(2):131-136.
[8] 张军, 王士革. 蒋家沟泥石流堆积体的抗剪强度试验[J] . 山地研究,1987,5(4):285-288.
[9] 黄江成, 欧国强, 潘华利, 等. 泥石流多发区典型土浆体流变特性比较研究[J] . 四川大学学报(工程科学版),2015,47(6):49-53.
[10] 方华. 文家沟泥石流源地土体直剪强度特征试验研究[C] ∥中国地质学会.2011年全国工程地质学术年会论文集.西宁:中国地质学会,2011:146-151.
[11] 谢凯, 余宏明, 彭祖武, 等. 河南省栾川县泥石流源地土大直剪试验[J] . 山地学报,2013,31(6):738-744.
[12] 王硕楠, 余宏明, 师华鹏. 柿树沟泥石流物源体直剪强度特性试验研究[J] . raybet体育在线院报,2016,33(3):93-97.
[13] 陈宁生, 周海波, 卢阳, 等. 西南山区泥石流防治工程效益浅析[J] . 成都理工大学学报(自然科学版),2013,40(1):50-58.
[14] 祁龙,高守义. 甘家沟泥石流特征及其防治对策[J] . 水土保持通报,1994,14(5):58-63.
[15] 崔炳田. 北峪河和甘家沟的泥石流危害[J] . 水土保持通报,1985,(2):51-62.
[16] 甘肃水文地质工程地质勘察院.陇南市武都区汉王镇、龙凤乡佛堂沟泥石流灾害勘查报告[R] .兰州:甘肃水文地质工程地质勘察院,2009.
[17] 费祥俊. 泥石流运动机理与灾害防治[M] . 北京:清华大学出版社, 2004.
[18] 陈华勇, 崔鹏, 唐金波, 等. 一种泥石流拦砂坝溢流口:中国, CN204435329U[P] . 2015-07-01.
[19] 陈晓清, 李德基, 游勇, 等. 一种组装式泥石流拦砂坝及其施工方法:中国, CN102182163B[P] .2012-09-05.