張壽釗


摘 ?要:滑坡動力學的研究是一個熱門領域也是一個難點。在該領域中,滑坡速度的求取是一個相當棘手的問題,各類速度求取方法也是層出不窮,但一直缺少一個統一的分類。分類主要有理論計算方法、工程類比方法、數值模擬方法3類,以便廣大學者和工程技術人員參考。通過對滑坡速度求取方法分類以及各類方法的分析類比,指出了今后滑坡速度求取方法的可能的研究方向及側重點。
關鍵詞:滑坡速度 ?滑坡災害預測 ?求取方法 ?分類
中圖分類號:P642.22 ? 文獻標識碼:A 文章編號: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 ?結論
通過對各種滑速求取方法的總結分析,給出了一種較為合理的分類方法,闡述了各類方法的基本原理及應用。在充分分析對比各類方法基礎上,可以看出滑速求取以后將沿著以下幾個方向進行。
(1)理論計算方面,傳統的考慮單因素的計算結果很難對真實的滑坡運動過程再現,多因素耦合條件下的分析計算將是今后研究的重要方向。
(2)工程類比方面,參數的選取直接決定結果的準確性,準確把握參數的選擇,應用大量滑坡數據的分析對比結果來對參數的選擇加以限制與校準,這將有利于滑坡運動過程的準確把控。
參考文獻
[1] 王家鼎,肖樹芳,張倬元.灌溉誘發高速黃土滑坡的運動機理[J].工程地質學報,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.