论文部分内容阅读
你刊1963年第12期刊載的“良好岩层上挡土牆基础的加高和切台”一文“推荐釆用分层应力叠加法計算挡土牆台阶基础基底压应力。”該文根据西南山区已建成的,釆用加高和切台的挡上牆資料,进一步对基底压应力的計算方法作了闡述。在类似的地形、地质条件下,該文所介紹的加高和切台的办法,是值得推广的。惟該計算方法除文中作了計算方法的八点規定外,共計算理論依据(假設前提)及計算中某些力的取舍原因均未作交待。笔者通过对該文的学习,提出以下討論意見,供同志們参考。一、几种計算結果的比較 1. 根据分层应力叠加法計算結果(計算数据詳見該文算例),基底应力分布图成鋸齿形,压应力随基础台阶寬度突变而突变,如图1.α。 2. 同上述条件,若在基础加高部分填土一側不切割成台阶(图1、b)計算,基底合力偏心(e)为
You article No. 12, 1963, “a good rock retaining wall on the basis of the heightening and cutting station,” a text “recommended preclude the use of layered stress superimposed method of retaining wall step base foundation compressive stress.” According to Southwest Mountain Area Has been completed, preclude the use of heightening and cutting the wall of the wall information, and further calculation of stress at the base of the method are described. Under similar topographic and geological conditions, the methods of raising and cutting the platform introduced in this paper are worthy of promotion. However, except for the eight-point provision of the calculation method in the text, this calculation method has not given any explanation for the calculation of the theoretical basis (assumed premises) and the calculation of certain forces. The author through the study of the article, put forward the following comments for comrades for reference. First, the comparison of several calculation results 1. According to the superposition of stratified stress calculation results (calculation data see the text example), the stress distribution of the substrate into a sawtooth, compressive stress with the sudden change in the width of the base step mutations, as shown 1.α. 2. With the above conditions, if the basis of the elevated part of the fill side is not cut into steps (Figure 1, b) calculated base combined force eccentricity (e) is