由西班牙Fondedile有限公司研究成功的一种混凝土桩施工的新方法已经获得了欧洲专利,专利号是0129450,现在正在英国由Fondedile基础有限公司使用。该专利方法适用于作为基础、地基加固、混凝土隔板和混凝土桩基工程。普通的大直径桩施工方法是按桩的要求直径钻一个孔,然后灌注混凝土或胶结材料。在松土中,这种方法是很简单的,但当碰到诸如孤石之类的障碍物时,就变得很困难了。因而在喷注胶结拌合物之前就常常使用另一种高压喷水的方法以破裂土层,但喷射灌浆也存在一些缺点,如产生的孔断面不规则(例如在砂质土中孔径大而在粘土中孔径小 A new method for the construction of concrete piles that was successfully researched by the Spanish company Fonddedile GmbH has been granted a European patent with patent number 0129450. It is now being used in Britain by Fontedile Foundation Ltd. This patented method is suitable for use as a foundation, foundation reinforcement, concrete bulkhead and concrete pile foundation works. An ordinary large-diameter pile construction method is to drill a hole according to the required diameter of the pile and then pour the concrete or cement material. In the loose soil, this method is very simple, but when it comes to obstacles such as solitary stones, it becomes very difficult. Therefore, before the injection of the cement mixture, another high-pressure water jet method is often used to break the soil layer. However, jet grouting also has some disadvantages, such as irregular hole cross section (for example, large pore size in sandy soil). Small pore size in clay