[1]庄建琦,崔 鹏,胡凯衡,等.细颗粒迁移在泥石流形成过程中的作用[J].山地学报,2015,(06):713-720.[doi:10.16089/j.cnki.1008-2786.000086]
　ZHUANG Jianqi,CUI Peng,HU Kaiheng,et al.Fine Particle Size Moving and It's Effective on Debris Flow Initiation[J].Mountain Research,2015,(06):713-720.[doi:10.16089/j.cnki.1008-2786.000086]
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细颗粒迁移在泥石流形成过程中的作用()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2015年06期
页码:
713-720
栏目:
山地灾害
出版日期:
2015-12-01

文章信息/Info

Title:
Fine Particle Size Moving and It's Effective on Debris Flow Initiation
作者:
庄建琦1; 崔 鹏2;  胡凯衡2; 陈晓清2
1. 长安大学地质工程与测绘学院/西部矿产资源与地质工程教育部重点实验室, 陕西 西安 710054; 2.中国科学院水利部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):
ZHUANG Jianqi1;  CUI Peng2; HU Kaiheng2; CHEN Xiaoqing2
1. School of Geological Engineering and Surveying of Changan University Key Laboratory of Western China Mineral Resources and Geological Engineering, Xi'an 710054, China; 2 Institute of Mountain Hazards and Environment/Key Laboratory of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Chengdu 610041, China
关键词:
泥石流形成;  泥沙来源;  REE;  孔隙水压力;  含水量
Keywords:
debris flow;  sentiment originate;  REE(Rare Earth Element);  pore pressure;  water content
分类号:
P642.23
DOI:
10.16089/j.cnki.1008-2786.000086
文献标志码:
A
摘要:
针对松散物质异常丰富孕灾环境条件下泥石流的形成过程和泥沙来源,设计了人工降雨条件下泥石流形成试验,主要获得以下结果:1.震后孕灾环境条件下泥石流的形成首先需要细颗粒的起动,然后夹杂大颗粒运动,径流量快速增加,并伴随着沟道堵塞-溃决现象,形成阵性泥石流; 此后随着细颗粒的迁移,沟道粗化现象严重,泥石流现象逐渐消失。2.坡面首先对降雨开始响应,发生崩塌形成堰塞体,对沟道侵蚀产生较大影响,并伴随着坝体松散物质溃决向下游迁移。3.泥石流的泥沙主要来源于沟道中下游,其次是沟道中上游和源头坡面,三处的泥沙来源占到70%以上。4.土体对降雨的响应明显,孔隙水压力和含水量在不同时间段和不同部位变化曲线具有明显差异,并出现一定的波动特征,其不仅受到降雨的影响,同时对土体细颗粒含量和土体结构也有明显响应。5.细颗粒在泥石流的形成过程中扮演者非常重要的角色,其位移和汇集均对流域地形的演化和泥石流的形成产生影响。在泥石流形成预报时,应考虑土体细颗粒含量,不同的细颗粒含量其泥石流起动时临界含水量和孔隙水压力差异较大。
Abstract:
Designing the experiment on debris flow formation process at artificial rainfall at the conditions of the loose material unusually rich for studying the debris flow formation process. The main results showed:1.The fine particles moving first for the initiation of debris flow, and then mixed with the large particle and runoff increased sharply, along with channel block-outburst phenomenon; the debris flow phenomena gradually disappeared with the fine particles migration off and the channel rough serious. 2.The slop failure and moving at the rainstorm, the failure material deposited in channel and formed the dams which effect the erosion and deposits of the channel with moving down to downstream. 3.The erosion sediment was main from middle and lower channel, then from the upstream and slope; the debris flow fan materials was main from the downstream channel, then from the upstream and slope. 4.The pore-water pressure and water content, which not only effected by rainfall, but also effected by fine particles content and soil structure, changed obviously and varied in different time and different sites with fluctuation. 5.The fine particles played an important role in the process of debris flow initiation and it's accumulation and displacement effected the evolution of the basin topography and the formation of debris flow. In the debris flow forecast, the fine particles of soil content should be considered duo to its critical water content and pore-water pressure quite different in different content of fine particles of debris flow initiation.

参考文献/References:

[1] Institute of Mountain Hazards and Environment. Debris flow in China [M]. Beijing: The Commercial Press, 2000:12-64 [中国科学院水利部成都山地灾害与环境研究所.中国泥石流[M]. 北京: 商务印书馆,2000:12-64]
[2] Luo Defu, Mao Jizhou, Zhu Pingyi. Mountain hazards and mitigation in Sichuan-Tibet road(in Tibet )[M]. Beijing: Science Press, 1995:2-48 [罗德富,毛济周,朱平一. 川藏公路南线(西藏境内)山地灾害及防治对策[M]. 北京: 科学出版社,1995:2-48]
[3] Chen Xiaoqing, Chen Ningsheng, Cui Peng. Calculation of discharge of debris flow induced by glacier lake outburst[J]. Journal of Glaciology and Geocryology, 2004, 26(3): 357-362 [陈晓清,陈宁生,崔鹏. 冰川终碛湖溃决泥石流流量计算[J]. 冰川冻土, 2004, 26(3): 357-362]
[4] Tang Zejun, Lei Yanwu, Zhang Jingwen, et al. Rain simulation of dynamic soil erosion processes with rare earth element tracers [J]. Transaction of CSAE, 2006, 22(3): 32-35 [唐泽军,雷廷武,张晴雯,等. 稀土元素(REE)示踪土壤侵蚀动态过程的降雨模拟试验研究[J]. 农业工程学报,2006,22(3): 32-35]
[5] Bai Zhiyong. Analysis and calculation of debris flow initiation [J]. Journal of Southwest Jiaotong University, 2001, 36(3):318-321 [白志勇.泥石流松散物质启动条件的分析与计算[J]. 西南交通大学学报,2001,36(3): 318-321]
[6] Chen Xiaoqing,Cui Peng,Feng Zili.et al.Artificial rainfall experimental study on landslide translation to debris flow[J].Chinese Journal of Rock Mechanics and Engineering,2006, 25(1):106-116[陈晓清,崔鹏,冯自立,等.滑坡转化泥石流起动的人工降雨试验研究[J].岩石力学与工程学报,2006,25(1):106-116]
[7] Cui P, Zhou G D, Zhu X H, et al. Scale amplification of natural debris flows caused by cascading landslide dam failures [J]. Geomorphology, 2012, 123:1-17
[8] Zheng Lingyong, Li Zhanbin, Li Peng, et al. Study the erosion process at the precipitation using REE[J], Transaction of CSAE, 2010,26(3):87-91 [郑良勇,李占斌,李鹏,等. 稀土元素示踪坡面次降雨条件下的侵蚀过程[J]. 农业工程学报,2010,26(3):87-91]
[9] Cui Peng, Zhuang Jianqi, Chen Xingzhang, et al. Debris flow activity characters and mintigation after Wenchuan earthquake [J]. Journal of Sichuan University:Engineering Edition, 2010, 42(5): 10-19 [崔鹏,庄建琦,陈兴长,等. 汶川地震区震后泥石流活动特征与防治对策[J]. 四川大学学报:工程科学版,2010,42(5):10-19]
[10] Zhuang Jianqi, Cui Peng, Hu Kaiheng, et al. Research on debris flow initiation due to bed failure after Wenchuan earthquake [J]. Journal of Sichuan University:Engineering Edition, 2010,43(5): 230-236 [庄建琦,崔鹏,胡凯衡,等. 震后沟道松散物质起动形成泥石流实验研究[J]. 四川大学学报:工程科学版,2010,43(5): 230-236]
[11] Wu Pute, Liu Puling. Study the gully erosion process using the REE experiment [J]. Water and Soil Conservation Research, 1997,4(2): 69-74 [吴普特,刘普灵. 沟坡侵蚀REE示踪法试验研究初探[J]. 水土保持研究,1997,4(2): 69-74]
[12] Jiao Bintian, Lu Xiaobin, Wang Shuyun, et al. The movement of fine grains and its effects on the landslide and debris flow caused by raining [J]. Chinese Journal of Underground Space and Engineering, 2005, 1(7): 1014-1016 [矫滨田,鲁晓兵,王淑云,等. 土体降雨滑坡中细颗粒运移及效应[J]. 地下空间与工程学报,2005,1(7): 1014-1016]
[13] Chen N S, Zhou W, Yang C L, et al. The processes and mechanism of failure and debris flow initiation for gravel soil with different clay content[J]. Geomorphology, 2010, 121: 222-230
[14] Tang C, Rengers N, van Asch TWJ, et al. Triggering conditions and depositional characteristics of a disastrous debris flow event in Zhouqu city, Gansu Province, northwestern China[J].Natural Hazards and Earth System Sciences, 2011, 11: 2903-2912
[15] Zhuang Jianqi, Cui Peng, Guo Xiaojun, et al. Prediction of the debris flow run-off process based on hydrological model-Take Dawazi gully as example [J]. Catastrophic, 2013, 28(2): 55-59 [庄建琦, 崔鹏, 郭小军. 基于水文模型泥石流汇流预测——以蒋家沟一级支沟大凹子沟泥石流为例[J]. 灾害学, 2013, 28(2): 55-59]
[16] Jia Songwei, Wei Fangqiang. Tracing Sediment sources using magnetic measurements——a case study of Jiangjiagou Valley, Yunnan Province[J]. Journal of Sediment Research, 2009,(1):54-59 [贾松伟,韦方强.利用磁性参数诊断泥石流沟道沉积物来源——以云南蒋家沟流域为例[J].泥沙研究,2009,(1):54-59]
[17] Wen Anbang, Zhang Xinbao, Zhang Yiyun, et al. Comparison study on sediment sources between debris flow gullies and non-debris flow gullies by using the 137Cs tracing technique in Dongchuan,Yunnan Province of China[J]. Journal of Sediment Research, 2003, 4: 51-56 [文安邦, 张信宝, 张一云, 等. 云南东川泥石流沟与非泥石流沟137Cs 示踪法物源研究[J].泥沙研究, 2003, 4: 51-56]
[18] Li Y,Zhou X J,Su P C,et al.A scaling distribution for grain composition of debris flow [J]. Geomorphology,2013,192:30-42
[19] Ilstad T, Elverhbi A, Issler D, et al. Subaqueous debris flow behavior and its dependence on the sand/clay ratio: a laboratory study using particle tracking [J]. Marine Geology, 2004, 213: 415–438
[20] Bovis M J, Jakob M. The role of debris flow conditions in predicting debris flow activity[J]. Earth Surface Processes and Landforms, 1999, 24: 1039-1054

相似文献/References:

[1]钟敦伦,谢洪,李椷,等.四川省甘洛县泥石流[J].山地学报,1990,(02):107.

备注/Memo

备注/Memo:
收稿日期(Received date):2014-08-21; 改回日期(Accepted): 2014-10-30。 基金项目(Foundation item):国家自然科学基金(41572272),国家重点基础研究计划项目(973)(2014CB744703)。[Supported by the Nat ional Natural Science Foundation of China(Number: 41572272),State Basic Research Development Program of China(973 Program)(Number: 2014CB744703).] 作者简介(Biography):庄建琦(1982-),男,河南人,讲师,博士,主要从事泥石流方面的研究。 [Zhuang Jianqi(1982-), Lecturer, Undertaking research on debris flow.] E-mail:rockfans09@163.com
更新日期/Last Update: 1900-01-01