大型水平顺层滑坡形成机制数值模拟方法 ——以重庆钢铁公司古滑坡为例

摘要

Based on the example of Chongqing Iron & Steel paleo_landslide, anumerical study clue for the simulation of large translational landslide in horizontal sedimentary rocks is testified by using numerical simulation method. The whole processes that consist of the initial status of planation surface, evolution of slope and occurrences of landslide are quantitatively reproduced. The effect of factors on the development of the landslide, such as the soils welling force, which is the first chance to be considered as an important factor in this case during its long term studies, water pressure and seismic force, is discussed by comparing the different schemes of simulation. A retrogressive_translational movement has been proposed for this paleo_landslide ,according to the step analysis of numerically simulated results.%采用数值模拟方法，以重庆钢铁公司古滑坡为例，提出了大型水平顺层滑坡形成机制数值研究的思路，定量地再现了滑坡从夷平面－斜坡形成－滑坡产生的全过程，并利用不同模拟组合方案分析了作者首次引入的膨胀力以及水压力、地震力等等因素对滑坡形成的作用，分析出该大型水平顺层滑坡的形成机制为牵引-平推式滑坡。