The study looked at how water flows into underground caverns, which is important for building and drainage. They found that the distance between caverns and their size affects how much water comes in. When the distance is small compared to the size, it has a big impact on water flow. When the distance is medium, it has some effect. And when the distance is large, it hardly affects water flow. They changed the formulas used to predict water inflow to include the distance between caverns, and these new formulas work better for predicting water flow in real-life situations.