摘要
Abstract
Slurry shield tunneling method is used in Yangzhou Slender West Lake tunnel which pass through the whole expansive clay layer. The layer is medium expansive clay. Easy to collapse under the influence of water, strong cohesive force easy to bond together and superfine particles, large amount of mud, that’ s all the charecteristics of the clay. Through analyzing the characteristics of the layer, By using the knife dish wash system and muddy water circulation system reform measures, adding a chunk of separation function, with the multistage separation, long distance pipeline and precipitation of multistage method, which effectively solves many problems of the large diameter slurry shield in whole expansive clay layer, such as stick the knife dish, mud cake, driving difficult, and mud pie is difficult to transport, difficult separation etc. It get successful application of slurry shield for the first time in expansive clay, improves the advance and to ensure the project smooth implementation.关键词
泥水盾构/膨胀粘土/掘进技术Key words
slurry shield/expansive clay/tunneling technology分类
交通工程
