几种滑坡速度求取方法分类与探讨
2020-05-12张寿钊
张寿钊
摘 要:滑坡动力学的研究是一个热门领域也是一个难点。在该领域中,滑坡速度的求取是一个相当棘手的问题,各类速度求取方法也是层出不穷,但一直缺少一个统一的分类。分类主要有理论计算方法、工程类比方法、数值模拟方法3类,以便广大学者和工程技术人员参考。通过对滑坡速度求取方法分类以及各类方法的分析类比,指出了今后滑坡速度求取方法的可能的研究方向及侧重点。
关键词:滑坡速度 滑坡灾害预测 求取方法 分类
中图分类号:P642.22 文献标识码:A 文章编号:1672-3791(2020)03(b)-0021-02
Abstract: The study of landslide dynamics has always been a hot area and it is also an extremely complicated problem. In this field, the speed of landslide is a very difficult problem to solve. The speed of all kinds of methods is also endless, but there is always a lack of a unified classification. This article summarizes and classifies the methods that are widely used today. The classification mainly includes theoretical calculation method, engineering analogy method and numerical simulation method, so that the majority of scholars and engineering technicians can refer to it. Through the classification of landslide velocity estimation methods and the analysis analogy of various methods, the possible research directions and focuses of future landslide velocity calculation methods are pointed out.
Key Words: Landslide speed; Landslide disaster prediction; The method of seeking; Classification
2 結论
通过对各种滑速求取方法的总结分析,给出了一种较为合理的分类方法,阐述了各类方法的基本原理及应用。在充分分析对比各类方法基础上,可以看出滑速求取以后将沿着以下几个方向进行。
(1)理论计算方面,传统的考虑单因素的计算结果很难对真实的滑坡运动过程再现,多因素耦合条件下的分析计算将是今后研究的重要方向。
(2)工程类比方面,参数的选取直接决定结果的准确性,准确把握参数的选择,应用大量滑坡数据的分析对比结果来对参数的选择加以限制与校准,这将有利于滑坡运动过程的准确把控。
参考文献
[1] 王家鼎,肖树芳,张倬元.灌溉诱发高速黄土滑坡的运动机理[J].工程地质学报,2001,9(3):241-246.
[2] Heim A.Bergsturz and Menschenleben[M].Zutich:Naturfor-schenden Geology,1932.
[3] Scheidegger AE.On the prediction of the reach and velocity of catastrophic landslides[J].Rock Mech DC,1973(5):231-236.