This paper briefly describes two engineering projects of specially deep and big excavation,Jin Mao Mansion and Heng Long Square with depth of 19.65m and 18.20m, and area of about 20 000m 2 and 25 000m 2, respectively.

• 简要阐述上海金茂大厦和恒隆广场的特深特大基坑工程的设计、施工和监测。 基坑深度分别为19.；65m和18