An average single-story residential home is designed to apply a pressure to the subsurface of maybe 100 pounds per square foot of building footprint.

平均单层住宅的设计可向地下施加每平方英尺建筑面积约 100 磅的压力。

With its concrete skeleton, the Millennium Tower was designed to impose a load of 11,000 pounds per square foot or 530 kilopascals to its foundation (about 100 times more than an average house).

千禧塔采用混凝土骨架，设计可对其地基施加每平方英尺 11,000 磅或 530 千帕的荷载（大约是普通房屋的 100 倍）。