在土建工程中,软土地基的加固是一项被广泛应用的技术。自六十年代以来,国外对这项技术的研究与实践有了较大的发展。目前,常用的加固软土地基的方法大体可分四类:一类是换土法,主要是通过挖掘或爆破将软土排除,然后换以好土;一类是砂井脱水压实法,此法是通过井筒垂直排水以降低地下水位,同时加以压实。现在已不限于 In civil engineering, the reinforcement of soft ground is a widely used technology. Since the 1960s, foreign countries have made great progress in the research and practice of this technology. At present, the commonly used methods for reinforcing soft ground can be roughly divided into four categories: one is the soil replacement method, mainly excavated or demolished soft soil, and then replaced by good soil; one is sand well dewatering compaction method, This method is vertical drainage through the wellbore to reduce the water table, while compaction. Now is not limited to