论文部分内容阅读
目前国内外对均匀粘性土路基边坡的稳定计算有条分法、简化的毕肖普法等多种近似计算方法。其方法均需假定若干滑裂圆并经反复验算,经比较才求得最小的稳定系数。为减小计算工作量,提高计算精度,本文拟按Fellenius假设为前提并以不考虑摩擦力(φ=0)和考虑摩擦力(φ≠0)二种情况分别推导了均匀粘性土路基边坡最小稳定系数K的解析式。其计算数值表明,当φ≠0时,Fellenius的圆心坐标系数K_C、K_y与本文计算数值有较大差误。为便于应用,本文除按不同β角列表计算外,还绘制了K_g曲线,可供设计、施工部门参考使用。
At present, there are many kinds of approximate calculation methods for the stable calculation of uniform clay soil subgrade slope, such as the simplified method and the simplified Bishop method. The method needs to be assumed that a number of slip split round and after repeated checking, only by comparing the minimum stability factor. In order to reduce the computational workload and improve the calculation accuracy, this article intends to infer the uniform clay soil subgrade slope without considering the friction (φ = 0) and the friction (φ ≠ 0) based on the premise of Fellenius assumption The analytic formula of the minimum stability coefficient K. The calculated values show that when φ ≠ 0, the center coordinates of K_C and K_e of Fellenius are quite different from the calculated values. In order to facilitate the application, in addition to calculating according to different β angle list, but also draw the K_g curve, for design and construction department for reference.