Abstract: In the excavation engineering of Huimei Jingtai buildings, which are located on the bank of the Pearl River, the swing-spray wall together with theanchor tube is employed as retaining structure for the excavation. The practice shows that the seepage-prevented property of the structure has met the requirement for both construction code and the engineering design. The retaining structure has created an obvious economic interest in the foundation construction due to good seepage-prevented result and its low cost.

Key words: foundation engineering； ditch support； water-seal curtain；