论文部分内容阅读
用极限平衡法校核重力坝的深层抗滑稳定,坝后基岩产生最小抗力时的破裂角计算,一般都用繁琐的试算法(除地面为水平面者外)。本文介绍了倾斜表面的坝后基岩破裂角的计算式(考虑了粘结力的作用),并用BASIC算法语言编制了大坝稳定计算程序,可用于多坡段多层地基的稳定分析。在采取工程处理措施时(如用预锚、齿墙、混凝土塞和锚固桩加固),将本程序稍加修改亦可用于复核稳定。本文计算式和程序,已在铜街子工程大坝稳定分析中应用。
The limit equilibrium method is used to check the deep anti-skid stability of the gravity dam and the calculation of the crack angle when the base rock of the post-dam has the least resistance. Generally, complicated calculation methods are used except for the ground surface. In this paper, the calculation formula (considering the effect of cohesion) of the rockfill angle of post-dam foundation of inclined surface is introduced. The dam stability calculation program is compiled by BASIC language and can be used for the stability analysis of multi-slope foundation. When taking engineering measures (such as using pre-anchors, geogrids, concrete plugs and anchoring piles), a slight modification of this procedure may also be used to review the stability. The formulas and procedures in this paper have been applied to the stability analysis of Tongjiezi Dam.