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建于自重湿陷性场地的大型给水厂需全部消除地基湿陷性,选择适宜的处理方法是决定处理效果的关键。灰土挤密法作为一种常用的处理方法,其成孔方式的选择直接影响灰土挤密桩的实施效果和消除湿陷性的处理效果,同时设计中应将理论公式与实际土质参数、地方经验紧密结合。以某大型给水厂地基处理为例,介绍了灰土挤密桩的设计及灰土挤密法的施工要点。该工程已投入运行,结构安全可靠,效果良好。
Large-scale waterworks built in self-contained collapsible sites need to completely eliminate the collapsibility of the foundation. Choosing the appropriate treatment method is the key to determining the treatment effect. As a commonly used treatment method, the selection of formation method of lime-soil compaction method has a direct impact on the implementation effect of lime-soil compaction pile and the treatment effect of eliminating collapsibility. At the same time, the theoretical formula should be combined with the actual soil parameters, local experience Closely integrated. Taking the foundation treatment of a large water supply plant as an example, the design of lime - soil compaction piles and construction essentials of lime - soil compaction method are introduced. The project has been put into operation, the structure is safe and reliable, the effect is good.