摘要
滑坡的位移过程是一种非线性的动力学过程 .在研究了滑坡推力传递法的基础上 ,采用显式有限差分模型 ,利用牛顿第二定律差分格式导出的动力学公式 ,提出一种滑坡非线性动力学模拟的方法 ,并对溪洛渡水电站干海子滑坡进行了几种荷载情况下的动力学模拟 ,对滑坡进行正确的稳定性评价及准确的预测预报提供了有益的参考 .图 8,参 7
Since the movement of landslide displacement takes on a dynamic nonlinear process, the theory and method on landslide nonlinear dynamics should be studied deeply to analyze the stability correctly and forecast the landslide effectively. Based on the landslide force transmission method, this paper got a dynamic equation from Newtonian movement law using the finite difference method, and put forward a method for landslide nonlinear dynamics modeling. Some modeling results under different loading on Ganhaizi landslide near Xiluodu hydropower station are given at the end of paper.8figs.,7refs.
引文
[1] 林宗元.岩土工程勘察设计手册[M].沈阳:辽宁科学技术出版社,1996.
[2] 伍法权.一种滑坡位移动力学预报方法探讨[J].中国地质灾害与防治学报,1997,7:3841.
[3] 晏同珍.水文地质与环境保护[M].武汉:中国地质大学出版社,1994.
[4] 张有天,周维垣.岩石高边坡的变形与稳定[M].北京:中国水利水电出版社,1999.
[5] 刘汉东.边坡失稳定时预报理论与方法[M].郑州:黄河水利出版社,1996.
[6] 贺可强.堆积层滑坡预测预报及其防治[M].北京:地震出版社,1996.
[7] 王泳嘉,邢纪波.离散单元法及其在岩土力学中的应用[M].沈阳:东北工学院出版社,1991.