隔水帷幕在石灰桩处理砂土地基中的应用

砂土因为其高渗透性一直被认为是石灰桩加固的禁区,因为过多地下水的渗入会导致石灰桩“软心”。然而如果克服了这一缺点,石灰桩将是一种加固效果良好、造价低、噪音小和施工方便快速的砂土地基处理方法。本文将介绍一种行之有效操作简便的隔水帷幕法,用于解决较高渗透性土层中石灰桩的“软心”问题。

Application of Water Prevent Curtain in Lime Pile in Sandy Foundation

Improving the strength of high-permeable sand by lime piles is always believed to be the "forbidden zone" because excessive underground water table,which penetrates into lime piles,and makes lime piles into a so called "soft cores".However,if this disadvantage could be overcome,great advantages of lime pile methods,like effectiveness,low-cost,low-noise,convenience and short period of construction when improving sand subgrade,can be take into account. Herewith,an effective and convenient method,named "impervious curtain method",as a solution to the phenomenon of "soft cores" has been introduced in this paper.