Abstract：
Xuzhou Suning Square is located in Xuzhou City Commercial Center，The underground foundation pit is very large and deep, construction site is very narrow, the traffic, pipeline environment is very complex。So it is difficult for transporting soil. In order to solve these problems, trestlebridge is established on the first support beam. These measures improve the construction conditions and excavation speed, shorten the construction period, save the cost, at the same time in favor of the safety of the foundation pit.
