Abstract: Due to the increasing improvement of the underground space utilization, the deep excavation using the reinforced concrete support is more and more popular. As a result, the excavation and transportation waste soils are also increasingly difficult. Therefore, the trestle bridges that for the waste soil transportation have become an integral part deep excavation support design process. The Hongshuwan real estate large area and depth deep excavation case history is presented in this paper. This site had constrained excavation area and sensitive adjacent surrounding environment. A reinforced concrete temporary trestle bridge was designed to improve the waste soil transportation efficiency. The trestle bridge was analyzed by using the same approach for the design of reinforced concrete slab in the frame structure.

Key words: Deep Excavation for Large Area and Depth, Reinforced Concrete Trestle Bridge, Waste Soil Transportation, Structural Analysis