ANALYSIS OF STRESS, DEFORMATION AND STABILITY OF ANCHORED PILE SUPPORTED DEEP EXCAVATION IN SAND
Based on an anchored pile supported deep excavation in Shenyang, this study analyzed the methods of anchored pile supporting structural force calculation and the stability of deep excavation. The stressful and deformational responses of supporting structure were investigated by in situ tests and the key construction methods were described. The result showed that the anchored pile supporting system was reliable for a deep excavation in sandy soils, which could meet the security requirement of a deep excavation. For the retaining structure of a deep excavation in sandy soils, the time effect was not significant. According to the in situ data, the maximum horizontal movement of the pile top was about 0,13 % of excavation depth (He).The prestress loss of anchor cables was obvious after being locked, which also showed a change as an exponential form at that time. In addition, the waterproof system of basement structure including self-waterproof structure, waterproof layer and detail structure for waterproof was investigated, which tended to be reliable for structural waterproof.