泥石流沟道汇流对堆积危险范围影响的数值模拟研究

doi:10.13249/j.cnki.sgs.2016.10.017

地理科学 ›› 2016, Vol. 36 ›› Issue (10): 1588-1594.doi: 10.13249/j.cnki.sgs.2016.10.017

泥石流沟道汇流对堆积危险范围影响的数值模拟研究

叶健¹(), 陈锦雄², 陈晓清³, 朱军¹, 徐柱¹

1.西南交通大学地球科学与环境工程学院,四川成都 611756
2.乔治梅森大学计算机科学系,美国弗吉尼亚 22030-4444
3.中国科学院成都山地灾害与环境研究所,四川成都 610041

收稿日期:2015-12-25 修回日期:2016-02-22 出版日期:2016-10-20 发布日期:2020-09-07
作者简介:
作者简介：叶健（1980-）,男,安徽六安人,讲师,主要从事山地灾害三维仿真研究方面的工作。E-mail：yejian518@home.swjtu.edu.cn
基金资助:
青年教师百人计划项目（A0920502051411-7）、中央高校基本科研业务费专项资金资助(A0920502051619-91)、四川省应急测绘与防灾减灾工程中心技术研究中心开放基金重点项目(J2014ZC17)、教育部创新团队（IRT13092）项目资助

Numerical Simulation Study on Hazardous Area for the Confluence Deposit of Gully Debris Flow

Ye Jian¹(), Chen Jinxiong², Chen Xiaoqing³, Zhu Jun¹, Xu Zhu¹

1. Faculty of Geoscience and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, Sichuan, China
2. George Mason University, Fairfax 22030-4444, USA
3. Institution of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China

Received:2015-12-25 Revised:2016-02-22 Online:2016-10-20 Published:2020-09-07

摘要/Abstract

摘要：

利用离散元法和图形处理器（GPU）并行计算手段建立泥石流运动堆积模型,以自然界沟道泥石流汇流后运动堆积特征及危险范围作为模拟参照,利用所构建的泥石流流通槽完成沟道泥石流不同交汇角汇流模拟试验和堆积危险范围预测,实现了泥石流沟道汇流的可视化模拟和数值模拟。试验结果表明,可视化模拟能够模拟出自然界中泥石流自流通区运动汇流后产生堆积的运动特征;数值模拟实现了锐角条件下仅考虑单因素即沟道交汇角对泥石流堆积危险范围影响的模拟试验。此外,利用GPU并行计算的优势可用于模拟大规模泥石流汇流现象,模型的可扩展性为泥石流汇流堆积危险范围分析向更为复杂的地理环境模拟奠定基础。

关键词: 泥石流汇流, GPU, 泥石流堆积, 危险范围, 离散元法

Abstract:

Featured with suddenness and rapid expansion, the confluence of gully debris flow in the nature can cause huge economic loss to the residents along the accumulation areas. Therefore, it is necessary and urgent to predict the hazardous range for the confluence of gully debris flow. Through utilizing discrete element method and GPU parallel computing approaches, this paper establishes debris-flow deposit model. By taking the debris-flow deposit characteristics after the confluence of gully debris flow in the nature and simplifying the interaction between debris-flow gully, this article completes numerical simulation of debris-flow confluence with different confluent angles and the prediction of deposit hazardous areas. The experiment results indicate that numerical simulation of debris-flow confluence can not only simulate the characteristics of deposit produced by the confluence from circulation areas of debris flow in the nature, but also simulate the reasonable hazardous range for the debris-flow deposit under the action of pressure component and shear force component of different gully confluence angles. In addition, the advantages of GPU parallel computing can be used to simulate the large-scale debris flow confluence phenomena, and the expandability of this model lays simulation basis for analyzing the hazardous range for the confluence accumulation of debris flow in a more complicated geographical environment.

Key words: debris-flow confluence, GPU, debris-flow deposits, hazard range, DEM

中图分类号:

P694

叶健, 陈锦雄, 陈晓清, 朱军, 徐柱. 泥石流沟道汇流对堆积危险范围影响的数值模拟研究[J]. 地理科学, 2016, 36(10): 1588-1594.

Ye Jian, Chen Jinxiong, Chen Xiaoqing, Zhu Jun, Xu Zhu. Numerical Simulation Study on Hazardous Area for the Confluence Deposit of Gully Debris Flow[J]. SCIENTIA GEOGRAPHICA SINICA, 2016, 36(10): 1588-1594.

图/表 6

图1

图2

图3

图4

表1

泥石流沟道汇流数值模拟试验主要参数与结果"

编号	坡度 $β A$	流量 $Q A$	交汇角α	坡度角 $β B$	流量 $Q B$	最大汇流堆积长度L	最大汇流堆积宽度度B
1	30°	125000	20°	30°	125000	270	450
2	30°	125000	30°	30°	125000	270	445
3	30°	125000	40°	30°	125000	270	440
4	30°	125000	50°	30°	125000	270	433
5	30°	125000	60°	30°	125000	270	425
6	30°	125000	70°	30°	125000	270	420
7	30°	125000	80°	30°	125000	267.5	412.5

表1

图5

参考文献 23

[1]	Zhang Jinshan, Cui Peng.An empirical formula for suspended sediment delivery ratio of main river after confluence of debrisflow[J]. Journal of Mountain Science, 2013, 10(2): 326-336. doi: 10.1007/s11629-013-2519-6
[2]	匡尚富. 汇流部泥石流的特性和淤积过程的研究[J]. 泥沙研究, 1995, 3(1): 1-15.
	[Kuang Shangfu.Study on behaviors and deposit processes of debris flow at the confluence. Journal of Sediment Research, 1995, 3(1): 1-15.]
[3]	陈兴长, 游勇, 柳金峰. 四川省安县千佛山景区震后泥石流灾害及其判识[J]. 地理科学, 2011, 31(12): 1500-1505.
	[Chen Xingchang, You Yong, Liu Jinfeng.Characteristics and discrimination of debris flows following wenchuan earthquake in qianfoshan scenic spot of anxian county,Sichuan province. Scientia Geographica Sinica, 2011, 31(12): 1500-1505.]
[4]	胡凯衡, 游勇, 庄建琦. 北川地震重灾区泥石流特征与减灾对策[J]. 地理科学, 2010, 30(4): 566-570.
	[Hu Kaiheng, You Yong, Zhuang Jianqi.Characteristics and countermeasures of debris flows in beichuan's meizoseismal area. Scientia Geographica Sinica, 2010, 30(4): 566-570.]
[5]	黎志恒, 朱立峰, 胡向德, 等. 三眼峪特大泥石流沟流域分区特征[J]. 西北地质, 2011, 44(3): 38-43. doi: 10.3969/j.issn.1009-6248.2011.03.005
	[Li Zhiheng, Zhu Lifeng, Hu Xiangde et al. Basin zoning characteristics of sanyanyu extremely big debris flow gully. Northwestern Geology, 2011, 44(3): 38-43.]
[6]	刘希林, 陈宜娟. 泥石流风险区划方法及其应用[J]. 地理科学, 2010, 30(4): 558-565.
	[Liu Xilin, Chen Yijuan.Application of debris flow risk zonation:an example of West Sichuan. Scientia Geographica Sinica, 2010, 30(4): 558-565.]
[7]	Hungr O, Morgan G C, VanDine D F. Debris flow defenses in British Columbia. Reviews in Engineering Geology[C], Volume VII, Debris Flows/Avalanches: Process, Recognition, and Mitigation. The Geological Society of America, Boulder, Colorado, 1987, 201-222.
[8]	Lo D O K. Review of Natural Terrain Landslide Debris-resisting Barrier Design[R]. GEO Report No. 104. Geotechnical Engineering Office, Civil Engineering Department, The Government of Hong Kong Special Administrative Region, 2000,91.
[9]	VanDine D F. Debris flow control structures for forest engineering[N].Working Paper 08/1996, Ministry of Forests Research Program. Victoria, British Columbia.
[10]	郭志学. 泥石流入汇交汇区水沙运动特性[D]. 成都: 四川大学, 2003 .
	[Guo Zhixue.The movement characteristic of flow and sediment in confluence area when debris flows join in the main river. Chengdu: Sichuan University, 2003
[11]	何易平. 泥石流对山区河流河床演变的影响[D].成都:中国科学院成都山地灾害与环境研究所, 2003.
	[He Yiping.Influence of debris flow on river channel change of mountains. Chendu: Institution of Mountain Hazards and Environment,CAS,2003.]
[12]	陈德明. 泥石流与主河水流交汇机理及其河床响应特征[D].北京:中国水利水电科学研究院, 2000.
	[Chen Deming.Mechanism of confluence between debris flow and the main river. Beijing: China Institute of Water Resources and Hydropower Research, 2000.]
[13]	梁志勇, 李明, 匡尚富, 等. 支流泥石流入汇对主河河型成因的影响[J]. 水土保持学报, 2001, 15(5): 112-115, 132. doi: 10.3321/j.issn:1009-2242.2001.05.030
	[Liang Zhiyong, Li Ming, Kuang Shangfu et al. River Channel changes due to converge of debris flow. Journal of Soil and Water Conservation, 2001, 15(5): 112-115, 132.]
[14]	陈日东, 刘兴年, 曹叔尤, 等. 泥石流与主河汇流堆积的数值模拟[J]. 中国科学, 2011, 41(10): 1305-1314.
	[Chen Ridong, Liu Xingnian, Cao Shuyou et al. Numerical simulation of deposit in confluence zone of debris flow and mainstream. Science China, 2011, 41(10): 1305-1314.]
[15]	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.
	[Cui Peng, Zhuang Jianqi, Chen Xingchang et al. Characteristics and countermeasures of debris flow in Wenchuan Area after the earthquake. Journal of Sichuan University (Engineering Science Edition), 2010, 42(5): 10-19.]
[16]	郭志学, 方铎, 余斌. 泥石流与主河交汇的试验研究[J]. 水土保持学报, 2003, 17(5): 175-177. doi: 10.3321/j.issn:1009-2242.2003.05.050
	[Guo Zhixue, Fang Duo, Yu Bin.Experiment study on debris flow confluence with main river. Journal of Soil and Water Conservation, 2003, 17(5): 175-177.]
[17]	朱平一, 程尊兰, 游勇. 川藏公路培龙沟泥石流输沙堵江成因探讨[J]. 自然灾害学报, 2002, 9(1): 80-83. doi: 10.3969/j.issn.1004-4574.2000.01.013
	[Zhu Pingyi, Cheng Zunlan, You Yong.Research on causes of river Gully debris flow blocking by sediment delivery of Peilonggou in the Sichuan-Xizang Highway. Journal of Natural Disasters, 2002, 9(1): 80-83.]
[18]	胡健. 泥石流与主河的汇流机理及泥石流运动的数值模拟[D].北京:中国水利水电科学研究院, 2002.
	[Hu Jian.Mechanism of confluence between debris flow and mainstream and numerical simulation of debris flow movement. Beijing: China Institute of Water Resources and Hydropower Research, 2002.]
[19]	徐永年, 匡尚富, 黄永键, 等. 泥石流入汇的危险性判别指标[J]. 自然灾害学报, 2002, 11(3): 33-38. doi: 10.3969/j.issn.1004-4574.2002.03.006
	[Xu Yongnian, Kuang Shangfu, Huang Yongjian et al. Hazard-deciding indices for convergence of debris flow. Journal of Natural Disasters, 2002, 11(3): 33-38.]
[20]	Cundall P A.A computer model for simulating progressive large scale movement in block rock system[J]. Symposium ISRM, 1971, 1(2): 129-136.
[21]	刘凯欣, 高凌天. 离散元法研究的评述[J]. 力学进展, 2003, 33(4): 483-490. doi: 10.3321/j.issn:1000-0992.2003.04.005
	[Liu Kaixin, Gao Lingtian.A review on the discrete element method. Advances in Mechanics, 2003, 33(4): 483-490.]
[22]	Mindlin R D, Deresiewicz H.Elastic spheres in contact under varying oblique forces[J]. Journal of Applied Mechanics, 1953, 20(3): 327-344. doi: 10.1007/978-1-4613-8865-4_35
[23]	常元章, 柳有权, 鲍凯, 等. 一种基于粒子的牛顿流体与粘弹性流体统一模拟方法[J]. 计算机学报, 2010, 33(7): 1286-1294.
	[Chang Yuanzhang, Liu Youquan, Bao Kai et al. A unified Particle-Based method for Newtonian and viscoelastic fluids animation. Chinese Journal of Computers, 2010, 33(7): 1286-1294.]

泥石流沟道汇流对堆积危险范围影响的数值模拟研究

Numerical Simulation Study on Hazardous Area for the Confluence Deposit of Gully Debris Flow

RichHTML

PDF (PC)

赞

可视化

被引次数

摘要/Abstract

引用本文

使用本文

图/表 6

参考文献 23

相关文章 4

Metrics

本文评价

推荐阅读 0

[1]	刘希林, 陈宜娟. 泥石流风险区划方法及其应用——以四川西部地区为例[J]. 地理科学, 2010, 30(4): 558-565.
[2]	胡凯衡, 游勇, 庄建琦, 陈晓清. 北川地震重灾区泥石流特征与减灾对策[J]. 地理科学, 2010, 30(4): 566-570.
[3]	刘希林. 泥石流防灾优先性研究[J]. 地理科学, 2001, 21(2): 113-117.
[4]	谢洪, 钟敦伦, 韦方强, 李泳. 泥石流信息范畴与信息收集[J]. 地理科学, 2000, 20(5): 474-477.