摘要
针对饱和粉细砂层中盾构隧道的地基液化问题 ,通过室内实验及理论计算得到如下结论 :改变隧道埋深、对洞周土压密或对洞周土注入 7%～ 1 0 %的 42 5#普通硅酸盐水泥等 ,即可达到消除隧道底部、减小隧道顶部液化区的目的。
About the question of layers' liquefaction of shield tunneling, the authors draw the conclusions through laboratory test and theoretical computation, that the liquefaction area of the bottom of shield tunneling will disappear and the liquefaction area of the top of shield tunneling will decrease if we change the buried depth of tunneling, or the layers are compacted, or the layers are injected by the number 425 silicate cement of 7 percent to 10 percent.
