摘要
在阐述滑坡速度计算方法的基础上,分析了潘家铮和汪洋等人提出的算法的优缺点,并提出了在以上两种方法中增加阻力和水压力差的方法,使得计算更加合理。把流体阻力的概念运用到鹅公带古滑坡的实际工程中,基于以上2种方法的5种不同的优化方法,结合鹅公带古滑坡进行分析,计算出滑坡下滑时产生的加速度和速度。考虑了粘聚力、土条两侧水压力差以及水阻力对滑速的影响,并且得到三者对滑速影响是依次减小的。
Based on a description of the calculation of slip velocity, we analyze the advantages anct weaknesses of the algorithms proposed by Pan Jiazheng and Wang Yang, and put forward a more reasonable method which adds water resistance and water pressure difference method to the above methods. The concept of fluid resistance to the actual project named E＇gongdai ancient landslide is applied. Based on five different optimization methods of the above two methods, and combining with E＇gongdai ancient landslide, we calculate the acceleration and velocity of landslide. Considering the effect of cohesion, water pressure difference of both sides of slice and water resistance on the on the sliding velocity, we know that the effect of the above three factors on the sliding velocity decreases.
出处
《水运工程》
北大核心
2012年第4期23-26,共4页
Port & Waterway Engineering
关键词
粘聚力
滑速
水阻力
水压力差
滑坡
cohesion
slip velocity
water resistance
water pressure difference
landslide
