青藏高原泥石流的形成及运动过程研究
|
摘要
传统的泥石流模拟模型对青藏高原泥石流的模拟与实际情况的吻合度较低,无法为预防与治理泥石流提供合理的数据。为此,构建泥石流形成运动模拟模型对青藏高原泥石流形成及运动过程进行模拟研究。根据质量守恒原则、侵蚀、降雨与摩擦影响因素,建立泥石流形成、运动模拟模型,采用有限差分数值方法对泥石流厚度与流速进行计算。通过对泥石流厚度与流速的计算,实现了对青藏高原泥石流形成、运动过程的模拟。通过实验对比结果可知,泥石流形成及运动模拟模型与实际情况的吻合度远远高于传统模拟模型,说明泥石流形成运动模拟模型具备较高的有效性。
The traditional debris flow simulation model is unable to provide reasonable data for debris flow prevention and control because of its low coincidence with the actual situation of Qinghai Tibet Plateau. Based on the mass conservation principle, erosion, rainfall and friction factors, a simulation model of debris flow is established. The thickness and velocity of debris flow are calculated by finite difference method, based on which the formation and movement process of debris flow on Qinghai-Tibet Plateau is simulated. The results out of experiments show this simulation model of debris flow is much more consistent with the actual situation than the traditional simulation model, indicating this simulation model has fairly high effectiveness.
The traditional debris flow simulation model is unable to provide reasonable data for debris flow prevention and control because of its low coincidence with the actual situation of Qinghai Tibet Plateau. Based on the mass conservation principle, erosion, rainfall and friction factors, a simulation model of debris flow is established. The thickness and velocity of debris flow are calculated by finite difference method, based on which the formation and movement process of debris flow on Qinghai-Tibet Plateau is simulated. The results out of experiments show this simulation model of debris flow is much more consistent with the actual situation than the traditional simulation model, indicating this simulation model has fairly high effectiveness.
引文
[1]王洋,崔鹏,王兆印,等.泥石流龙头的形成及特征研究[J].水利学报,2017,48(4):473-479.
[2]崔鹏,唐金波,林鹏智.泥石流运动阻力特性及其研究进展[J].四川大学学报(工程科学版),2016,48(3):1-11.
[3]高明信.运动疲劳过程中脑电信号特征提取仿真[J].计算机仿真,2017,34(5):277-280.
[4]刘刚,燕云鹏,刘建宇.青藏高原西部地质灾害分布特征及背景分析[J].中国地质调查,2017,4(3):37-45.
[5]吕立群,王兆印,崔鹏,等.沟岸侧蚀对泥石流形成和运动过程的影响[J].水科学进展,2017,28(4):553-563.
[6]张月峰,李俊,孙明书,等.青海省湟源县泥石流灾害特征分析[J].低温建筑技术,2016,38(3):110-112.
[7]宋志,邓荣贵,陈泽硕.典型泥石流堵河案例运动过程与堆积区特征分析——以四川石棉熊家沟泥石流为例[J].自然灾害学报,2016,25(1):74-80.
[8]陈星宇,苏立君,梁双庆.泥石流源区宽级配砾石土渗透特性试验研究[J].科学技术与工程,2016,16(14):127-131.
[9]周正浩,侯思意.四川九寨沟景区关于突发泥石流的预防对策[J].旅游纵览(下半月),2017,12(9):12-14.
[10]杨夫坤,管群,韦方强,等.泥石流危险性分区仿真系统的研究与实现[J].计算机仿真,2011,28(7):369-373.
[2]崔鹏,唐金波,林鹏智.泥石流运动阻力特性及其研究进展[J].四川大学学报(工程科学版),2016,48(3):1-11.
[3]高明信.运动疲劳过程中脑电信号特征提取仿真[J].计算机仿真,2017,34(5):277-280.
[4]刘刚,燕云鹏,刘建宇.青藏高原西部地质灾害分布特征及背景分析[J].中国地质调查,2017,4(3):37-45.
[5]吕立群,王兆印,崔鹏,等.沟岸侧蚀对泥石流形成和运动过程的影响[J].水科学进展,2017,28(4):553-563.
[6]张月峰,李俊,孙明书,等.青海省湟源县泥石流灾害特征分析[J].低温建筑技术,2016,38(3):110-112.
[7]宋志,邓荣贵,陈泽硕.典型泥石流堵河案例运动过程与堆积区特征分析——以四川石棉熊家沟泥石流为例[J].自然灾害学报,2016,25(1):74-80.
[8]陈星宇,苏立君,梁双庆.泥石流源区宽级配砾石土渗透特性试验研究[J].科学技术与工程,2016,16(14):127-131.
[9]周正浩,侯思意.四川九寨沟景区关于突发泥石流的预防对策[J].旅游纵览(下半月),2017,12(9):12-14.
[10]杨夫坤,管群,韦方强,等.泥石流危险性分区仿真系统的研究与实现[J].计算机仿真,2011,28(7):369-373.