Exploration works have shown that there are alveolate isolated aquifers in the loose deposits with rich groundwater.By direct viewing, the landslide was caused by road excavation in 1998.

• 研究表明，崩滑堆积物呈蜂窝状分布的富水含水层，因远距离开挖失水而导致的不均匀变形，是地面出现拉裂的主要原因；