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Tunneling Through Soft Ground Using Ground Freezing

机译：使用地面冻结法在软土地基中掘进隧道

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摘要

Ground freezing represents a viable solution to create a watertight and load-carrying soil body in water-bearing soil. The ground freezing method was developed in the nineteenth century by the German engineer Friedrich Poetsch. The method was developed to sink shafts through water-bearing soils down to hard rock and coal seams. It was the only safe method to construct shafts with depths of more than 50 meters (160 feet) in water-saturated soil. The deepest freezing shaft completed so far in Germany was in Rheinberg with a depth of more than 600 meters (1,925 feet). Figure 1 shows the original patent document for this method, which was dated 1883.
机译：地面冻结是一种可行的解决方案，可以在含水土壤中形成不透水且承重的土壤。地面冷冻法是19世纪德国工程师Friedrich Poetsch开发的。开发该方法的目的是将竖井从含水土壤下沉到坚硬的岩石和煤层。这是在含水饱和的土壤中构造深度超过50米（160英尺）的竖井的唯一安全方法。迄今为止，德国完成的最深的冷冻井位于莱茵伯格，深度超过600米（1,925英尺）。图1显示了此方法的原始专利文件，该文件的日期为1883年。

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