Reasons for the tilt of the columns of the wooden structure pavilion

There are three main reasons for the tilting of wooden structure pavilion columns:

1, geological condition of the soil and hydrogeological changes.

2, surrounding construction and excavation.

3, artificial backfill and natural backfill. As most of the ancient buildings have experienced a long time, coupled with the long-term erosion by the natural environment, coupled with the continuous decline of the water table and the excavation and construction of the surrounding buildings and other factors, resulting in different degrees of tilting and cracking phenomenon of ancient buildings.