the foot of a wall meaning in Chinese

墙根

One day , while he was sitting at the foot of a wall , the wall collapsed on top of him
一日，他坐在一堵墙下，墙忽然倒塌，把他压在下面。
When there is original stage support only , the load ratio of surrounding rock gets more and more bigger with the increasing of crust stress , correspondingly , the load ratio of initial stage support gets smaller . when the initial stage support and the second support act each other , the load ratio of surrounding rock is more than fifty percent , and it has little change with the increasing of crust stress . the whole analysis of the surrounding rock and support shows that the bottom arch of liner and the feet of liner have serious stress concentration , so do the sidewalls and the foot of a wall of the surrounding rock
通过屈曲理论分析结果对比表明，弹性屈曲和突变失稳分析的结果比非线性屈曲分析的结果要大得多，非线性分析由于考虑了材料非线性和几何非线性，因而结果与实际接近实际；当只有初期支护时，随着地应力的增加，围岩的荷载分担率增大，相应地，初期支护的荷载分担率就减小了；当有初期支护和二次衬砌共同作用时，围岩的荷载分担率在50以上，这一分担率随地应力的增加其变化不大；支护和岩体的整体分析表明，衬砌底拱及拱脚处应力集中严重，隧道岩体侧墙及墙角围岩的应力集中也较大。