| 摘要 |
An apparatus and a method are provided for lifting and leveling an existing building from a position underneath the existing building. At least a first non-cylindrical support section having a substantially rectangular shape and first and second ends is located within the earth at a position underneath the existing building. A vertically-adjustable cap is placed in contact with the second end of the first non-cylindrical support section. A jack is disposed on an upper surface of a lower side of the cap and raised until an upper surface of an upper side of the cap is exerting pressure against the foundation of the existing building. The jack is then raised, thereby raising the cap, until the foundation has been raised to a desired height. The cap is the locked so that it will not move in the vertical directions and the jack is lowered and removed. If the building subsequently needs to be re-leveled, raised or lowered, the cap can be unlocked and vertically adjusted to an appropriate height.
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