Behavior of retaining structure with double-row piles for deepexcavations subway stations

Based on the supporting project of a deep excavation close to the underground structure of a subway stations, the deformation characteristics and distribution of the earth pressure as well as their effects on the subway structure of retaining structure with double-row piles are analyzed by means of the FEA method and the analytical formula. The distribution of the earth pressure’s on double-row piles applicable to such situations are sum- marized. A model based on the elastic resistance method is proposed. Through analyzing the results, a series of conclusions for characters of double-row piles are drawn. The calculated results are verified by use of the measured data.