[1]汤碧辉,孙红月.泥石流中大颗粒的起动与水流条件的关系[J].自然灾害学报,2017,(03):132-138.[doi:10.13577/j.jnd.2017.0316]
 TANG Bihui,SUN Hongyue.Relationships between starting motion of large-sized particles in debris flow and water flow condition[J].,2017,(03):132-138.[doi:10.13577/j.jnd.2017.0316]
点击复制

泥石流中大颗粒的起动与水流条件的关系
分享到:

《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
期数:
2017年03期
页码:
132-138
栏目:
出版日期:
2017-06-28

文章信息/Info

Title:
Relationships between starting motion of large-sized particles in debris flow and water flow condition
作者:
汤碧辉 孙红月
浙江大学 海洋学院, 浙江 杭州 310058
Author(s):
TANG Bihui SUN Hongyue
Ocean College, Zhejiang University, Hangzhou 310058, China
关键词:
泥石流大颗粒起动概率论起动流速安全流量
Keywords:
debris flowlarge-sized particles startingprobability theorystarting velocity of flowsafe quantity of flow
分类号:
P642.23;X43
DOI:
10.13577/j.jnd.2017.0316
摘要:
我国常年遭到泥石流灾害的侵袭,由此造成的损失不计其数。泥石流拥有巨大冲击力,其中大部分来自其中裹挟的大颗粒。文中对稀性泥石流中大颗粒的起动与水流条件的关系进行了研究。以斜坡上的球形颗粒为研究对象,分析了球体受到的上举力、推移力、有效重力;使用概率论的理念解决了颗粒在斜坡上的随机分布问题,得到了各个外力的力臂期望,并求解了颗粒临界起动时的力矩平衡方程,获得了颗粒起动的作用流速,进而将之转化为断面平均流速,由此得到了稀性泥石流中大颗粒的起动与水流条件的关系。这对泥石流防治工程,特别是排水设施的设计具有一定参考意义。
Abstract:
Debris flow occurs frequently in China, and that leads to great properties loss. Debris flow contains tremendous impact, most of which comes from large-sized particles. This paper investigates the relationships between starting motion of large-sized particles and water flow condition. The study is focused on one spherical particle on the ramp, and analyzes the particles’ forces, including lift force, push force and effective gravity. We solve the particles’ random distribution on the ramp through probability method, and infer mathematical expectation of forces’ arms. Additionally, the moment equilibrium equations of starting condition for grains are solved. Therefore we obtained the threshold velocity of the particle, which can be transformed into mean velocity at across-section. In the final, the relationships between starting motion of large-sized particles in debris flow and water flow condition are achieved, which provides a reference for building design of debris flow prevention, especially for the drainage device design.

参考文献/References:

[1] 陈晓清, 崔鹏. 泥石流防治工程信息系统初探[J]. 自然灾害学报, 2005, 14(5):72-77. CHEN Xiaoqing, CUI Peng. Primary study on information system of debris flow control works[J]. Journal of Natural Disasters, 2005, 14(5):72-77. (in Chinese)
[2] 康志成, 李焯芬, 马蔼乃, 等. 中国泥石流研究[M]. 北京:科学出版社, 2004:17, 44, 181-184, 190. KANG Zhicheng, LI Zhuofen, MA Genai, et al. Study on Debris Flow in China[M]. Beijing:Science Press, 2004:17, 44, 181-184, 190. (in Chinese)
[3] 章书成, 袁建模. 中国科学院兰州冰川冻土研究所集刊第4号(中国泥石流研究专辑)[M]. 北京:科学出版社, 1985. ZHANG Shucheng, YUAN Jianmo. Memoirs of Landzhou Institute of Glaciology and Cryopedology Chinese Academy of Sciences No.4(Monograph of the Researchs on Debris Flow in China)[M]. Beijing:Science:Science Press, 1985. (in Chinese)
[4] 乐茂华. 强震区溃决型泥石流动力过程模拟及特性研究[D]. 成都:成都理工大学, 2014:31-34. LE Maohua. Study on the Dynamic Characteristics of Break Debris Flow and Its Numerical Simulation in Meizoseismal Areas[D]. Chengdu University of Technology, 2014:31-34. (in Chinese)
[5] 张瑞瑾. 河流泥沙动力学[M]. 中国水利水电出版社, 1989:68-72. ZHANG Ruijin. River Sediment Dynamics[M]. Beijing:China Water Power Press, 1989:68-72. (in Chinese)
[6] 秦荣昱. 不均匀沙的起动规律[J]. 泥沙研究. 1980. 复刊号, 83-91. QIN Rongyu. Startin law of non-uniform sediment[J]. Journal of Sediment Research, 1980(1):83-91. (in Chinese)
[7] 孙志林, 谢鉴衡, 段文忠, 等. 非均匀沙分级起动规律研究[J]. 水利学报, 1997(10):26-33. SUN Zhilin, XIE Jianheng, DUAN Wenzhong, et al. Incipient motion of individual fractions of nonuniform sediment[J]. Journal of Hydraulic Engineering, 1997(10):26-33. (in Chinese)
[8] 刘大有, 王光谦, 李洪州. 泥沙运动的受力分析——关于碰撞力的讨论[J]. 泥沙研究, 1993(2):41-47. LIU Dayou, WANG Guangqian, LI Hongzhou. Force analyses of sediment transport-a discussion on the collision force[J]. Journal of Sediment Research, 1993(2):41-47. (in Chinese)
[9] Einstein.H.A., E.A. El-Samni, Hydrodynamic Forces on A Rough Wall. Rev. Modern Phys. 1949, 21(3):520-524.
[10] 李贞儒, 陈媛儿, 赵云. 作用于床面球体的推力及举力试验研究. 第二次河流泥沙国际学术讨论会论文集[M]. 北京:水利水电出版社, 1983. LI Zhenru, CHEN Yuaner, ZHAO Yun. Experimental Study on Thrust and Lift Acting on the Bed Surface of Sphere. Proceedings of the Second International Symposium on River Sediment[C]. Beijing:China Water Power Press. 1983. (in Chinese)
[11] Takahashi Tamotsu. The mechanical character of debris flow[J]. Journal of the Hydraulics Dwision, Proc ASEC, 1978, 104(HY8):1153-1169.
[12] 钱宁. 高含沙水流运动[M]. 北京:清华大学出版社, 1989:154-163. QIAN Ning. High Concentration Sediment Flow[M]. Beijing:Tsinghua University Press, 1989:154-163. (in Chinese)
[13] 傅炜. 天山阿拉沟泥石流运动机理分析[J]. 自然灾害学报, 1997, 6(1):46-53. FU Wei. Analyses of motion mechanism for mud-rock flows in alagou valley of tianshan mountains[J]. Journal of Natural Disasters, 1997, 6(1):46-53. (in Chinese)
[14] 祁龙. 水石流的性质及形成机理[J]. 水土保持通报, 1985(1):21-24. QI Long. Properties and formation mechanism of water rock flow[J]. Bulletin of Soil and Water Conservation, 1985(1):21-24. (in Chinese)
[15] 高阳. U形渠道水力特性及测流试验研究[D]. 杨凌. 西北农林科技大学, 2011:23-29. GAO Yang. The Experimental Study on the Hydraulic Characteristics and Measurement About U-shaped Channel[D]. Yangling. Northwest A&F University, 2011:23-29. (in Chinese)
[16] 杨士红, 韩金旭, 彭世彰, 等. U形渠道水流流速垂向分布规律及模拟[J]. 排灌机械工程学报, 2012, 30(3):309-314. YANG Shihong, HAN Jinxu, PENG Shizhang, et al. Vertical distribution of streamwise velocity andits prediction in U-shaped channel[J]. Journal of Drainage and Irrigation Machinery Engineering, 2012, 30(3):309-314. (in Chinese)
[17] 何建京, 王惠民. 光滑壁面明渠非均匀流水力特性[J]. 河海大学学报(自然科学版). 2003, 31(5):513-517. HE Jianjing, WANG Huimin. Turbulence characteristics of non-uniform flow in a smooth open channel[J]. Journal of Hohai University(Natural Sciences), 2003, 31(5):513-517. (in Chinese)
[18] 李晋琴. U形渠道断面流速分布规律及水力特性试验研究[D]. 杨凌. 西北科技农林大学, 2014:25-28. LI Jinqin. The Experimental Study on Velocity Distribution Regulation and Hydraulic Characteristics About U-shaped Channel[D]. Yangling. Northwest A&F University, 2014:25-28. (in Chinese)
[19] 唐川, 梁京涛. 汶川震区北川9.24暴雨泥石流特征研究[J]. 工程地质学报, 2008, 16(6):751-758. TANG Chuan, LIANG Jingtao. Characteristics of debris flows in beichuan epicenter of the wenchuan earthquake triggered by rainstorm on september 24, 2008[J]. Journal of Engineering Geology, 2008, 16(6):751-758. (in Chinese)
[20] 中华人民共和国国土资源部.泥石流灾害防治工程勘查规范[S]. 秦皇岛:中国标准出版社, 2006. Ministry of Land and Resources of the People’s Republic of China. Code for Engineering Exploration of Debris Flow Hazard Prevention[S]. Qinhuangdao:Standards Press of China, 2006. (in Chinese)
[21] 孙志林, 孙志锋. 粗化层试验与预报[J]. 水力发电学报, 2000(4):40-48. SUN Zhilin, SUN Zhifeng. Experiment and prediction of an armoring layer[J]. Journal of Hydroelectric Engineering, 2000(4):40-48. (in Chinese)
[22] 朱兴华, 崔鹏, 周公旦, 陈华勇. 稀性泥石流冲刷规律的试验研究[J]. 水利学报, 2012, 43(S2):85-91. ZHU Xinghua, CUI Peng, ZHOU Gongdan, et al. Experimental study on the erosion law of diluted debris flow[J]. Journal of Hydraulic Engineering, 2012, 43(S2):85-91. (in Chinese)

相似文献/References:

[1]聂娟,范一大,邓磊,等.山洪灾害雷达遥感灾情评估技术研究与应用[J].自然灾害学报,2010,(03):105.
 NIE Juan,FAN Yi-da,DENG Lei,et al.Research and application of torrential flood loss assessment based on radar remote sensing technology[J].,2010,(03):105.
[2]刘希林,陈宜娟.泥石流点密度和面密度对区域泥石流危险度的影响——对比研究[J].自然灾害学报,2011,(02):036.
 LIU Xi-lin,CHEN Yi-juan.Influence of debris flow spot and area densities on regional hazardousness of debris flow:a comparative study[J].,2011,(03):036.
[3]杨成林,陈宁生,李战鲁.汶川地震次生泥石流形成模式与机理[J].自然灾害学报,2011,(03):031.
 YANG Cheng-lin,CHEN Ning-sheng,LI Zhan-lu.Formation mode and mechanism fordebris flow induced by Wenchuan earthquake[J].,2011,(03):031.
[4]杨月巧,胡俊锋,郗蒙浩.基于灰色关联法的舟曲泥石流灾害影响因素分析[J].自然灾害学报,2011,(03):139.
 YANG Yue-qiao,HU Jun-feng,XI Meng-hao.Analysis of influence factors of debris flow disaster in Zhouqu based on grey relevance method[J].,2011,(03):139.
[5]李倩,黄勇.新疆天山公路泥石流风险评价研究[J].自然灾害学报,2011,(04):154.
 LI Qian,HUANG Yong.Risk evaluation of debris flow for Tianshan Highway in Xinjiang[J].,2011,(03):154.
[6]梁专明.新化县水车镇泥石流灾害研究[J].自然灾害学报,2011,(05):032.
 LIANG Zhuan-ming.Study on debris flow disaster in Shuiche Town, Xinhua County[J].,2011,(03):032.
[7]李朝安,胡卸文,王良玮.山区铁路沿线泥石流泥位自动监测预警系统[J].自然灾害学报,2011,(05):074.
 LI Chao-an,HU Xie-wen,WANG Liang-wei.Automatic monitoring and early warning system of mud-position of debris flow along railway line in mountainous area[J].,2011,(03):074.
[8]陈春光,姚令侃,杨庆华,等.基于堰流理论的泥石流堵河模型研究[J].自然灾害学报,2012,(06):131.
 CHEN Chunguang,YAO Lingkan,YANG Qinghua,et al.Study of river-blocking due to debris flow based on weir flow theory[J].,2012,(03):131.
[9]耿慧辉,贾景超.都江堰龙池镇三神公泥石流灾害特征[J].自然灾害学报,2012,(06):136.
 GENG Huihui,JIA Jingchao.Features of Sanshengong debris flow hazard in Longchi Town of Dujiangyan City[J].,2012,(03):136.
[10]冯杭建,唐小明,周爱国.浙江省泥石流与降雨历时关系研究及应用检验[J].自然灾害学报,2013,(01):159.
 FENG Hangjian,TANG Xiaoming,ZHOU Aiguo.Study on relationship between rainfall duration and occurrence of debris flow in Zhejiang Province and its application examination[J].,2013,(03):159.

备注/Memo

备注/Memo:
收稿日期:2016-05-12;改回日期:2017-01-17。
基金项目:国家自然科学基金资助项目(41272336)
作者简介:汤碧辉(1993-),男,硕士研究生,主要从事地质灾害防治研究.E-mail:21534059@zju.edu.cn
通讯作者:孙红月(1970-),女,教授,博士,主要从事地质灾害防治方面的教学与研究工作.E-mail:shy@zju.edu.cn
更新日期/Last Update: 1900-01-01