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| 沟道二维泥石流运动和冲淤数值模型研究 | |
| 引用本文： | 张万顺,赵琰鑫,崔鹏,彭虹,陈雪娇. 沟道二维泥石流运动和冲淤数值模型研究[J]. 中国水土保持科学, 2012, 10(1): 1-5 |
| 作者姓名： | 张万顺 赵琰鑫 崔鹏 彭虹 陈雪娇 |
| 作者单位： | 1. 武汉大学资源与环境科学学院,430079,武汉 2. 中国科学院成都山地灾害与环境研究所,640041,成都 3. 武汉大学水利水电学院,430072,武汉 |
| 基金项目： | 国家重点基础研究发展计划“水土耦合过程与大规模泥石流形成成灾机理”（2011CB409902） |
| 摘 要： | 以水沙混合流模型为基础,采用混合流沙量动态变化模式,提出泥石流运动控制方程组,建立适用于模拟泥石流在天然沟道中的运动和冲淤过程的二维数值模型.模型基于水动力学理论、水沙两相混合流理论和宾汉体模型理论,考虑了泥石流运动、泥沙输移、沟床变形、泥石流宾汉体流变特性等主要动力学过程.将模型应用于云南东川蒋家沟实测泥石流过程的模拟研究,结果较好地反映了泥石流运动不连续性的特征和泥石流沟道冲淤随时间演变的实际规律. |
| 关 键 词： | 泥石流 数值模型 蒋家沟 |
Two-dimensional numerical model for debris flow motion and gully bed evolution |
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| Zhang Wanshun , Zhao Yanxin , Cui Peng , Peng Hong , Chen Xuejiao. Two-dimensional numerical model for debris flow motion and gully bed evolution[J]. Science of Soil and Water Conservation, 2012, 10(1): 1-5 | |
| Authors: | Zhang Wanshun Zhao Yanxin Cui Peng Peng Hong Chen Xuejiao |
| Affiliation: | 1.School of Resource and Environmental Science,Wuhan University,430079,Wuhan; 2.Institute of Mountain Hazards and Environmental Disaster of CAS,610041,Chengdu; 3.College of Water Resources and Hydropower Engineering,Wuhan University,430072,Wuhan： China) |
| Abstract: | A two-dimensional mathematical model of debris flow in natural gully is developed.Based on the hydrodynamic theory,the water-sediments two-phase flow theory and the Bingham rheological theory,the dynamic processes of debris flow movement,sediment transport,bed evolution and rheological properties of the debris flow are considered.The model is applied to simulate debris flow event in Jiangjia Gully,Yunnan Province and predict the flow pattern and bed erosion-deposition processes.The results show the effectiveness of the proposed model. |
| Keywords: | debris flow numerical model Jiangjia Gully |
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