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为求解挡土牆上的土压力,c.c.戈卢什克維奇基于下述假定,提出了一个簡便的图解方法(見图一): 1. 挡土牆后土体在极限平衡状态形成有滑动楔体; 2. 滑动楔体的滑面是由主动应力区、被动应力区及其間之对数螺綫所組成的特別区(过渡区)三部分連接而成; 3. 体系破坏过程采用原始无变形状态作为极限平衡分析条件,并在滑面上及牆面上考虑摩擦角的充分作用。按戈氏的分析,不考虑体积力的滑面的图解法,在极限应力状态范围內,計算不会产生重大誤差。因此,可按无体积力情况定出滑动面后,再計入楔形滑动体各个部分的重量,并用力多形法求得挡土牆上土压力的数值。关于戈氏图解方法与計算步驟,請参閱銖路設計手冊《挡土牆》及г.K.克列因著《散体結构力学》等书,
In order to solve the earth pressure on the retaining wall, cc Godshkevich proposed a simple graphical method based on the following assumptions (see figure 1): 1. The soil behind the retaining wall is sliding in the state of limit equilibrium Wedge; 2 sliding wedge sliding surface is composed of the active stress zone, the passive stress zone and the logarithmic spiral between the special zone (transition zone) connected by three parts; 3. System failure process using the original no Deformation state as the limit equilibrium analysis conditions, and in the slip surface and the wall to consider the full role of friction angle. According to Ge’s analysis, without considering the graphical method of the sliding force of the body force, no significant error will be calculated in the range of the ultimate stress state. Therefore, the sliding surface can be determined according to the condition of no body force, and then the weight of each part of the wedge-shaped sliding body is re-counted, and the value of earth pressure on the retaining wall is obtained by force polygon method. For Ge’s graphical method and calculation steps, please refer to the baht road design manual “Retaining Wall” and г.K. 克列 因 “散 结构omechanics” and other books,