Abstract: In practical engineering, the common methods of the ground improvement include replacement, grouting reinforcement, surcharging and preloading, composite foundation and micro pile reinforcement. The main consideration of these traditional foundation treatment methods is to improve the foundation bearing capacity and control the foundation settlement, and other factors are rarely considered. However, for some special projects, not only the above factors but also the influence of ground improvement on the flow direction of the groundwater should be considered. Combined with an engineering example, this paper introduces a ground improvement method which can not only meet the requirements of the foundation bearing capacity and settlement control, but also does not affect the flow direction of the groundwater flow. It is called the permeable foundation here. With the development of the economy and the society, people have higher and higher requirements for groundwater environment. It is believed that similar problems will become more and more prominent.

Key words: Ground Improvement, Groundwater Flow Directions, Permeable Foundation