【作者】 叶观宝； 安新； 何志宇； 高彦斌； 马冬梅； 刘小平；

【Author】 Ye Guanbao~(1,2),An Xin~(1,2),He Zhiyu~(1,2),Gao Yanbin~(1,2),Ma Dongmei~3,Liu Xiaoping~3 (1.Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China; 2.Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education,Tongji University, Shanghai 200092,China;3.Lianyungang City Navigation Administration,Hanyungang,Jiangsu 222000,China)

【机构】 同济大学地下建筑与工程系； 同济大学岩土及地下工程教育部重点实验室； 江苏连云港市航道管理处；

【摘要】 依据工程实际工况,通过三维数值建模法,对比分析了软土堤岸土体堆载后、预应力锚索加固后、航道内土体开挖后围护桩的受力变形特性,并对各工况下压力分散型锚索的锚固特性进行研究。结果表明,桩锚支护体系中围护桩与压力分散型锚索受力形式合理,可以良好地协同工作;对于墙后有堆载的桩锚支护体系,施工中建议先张拉锚索后堆载,更有助于控制围护结构的变形。更多还原

【Abstract】 Based on a three-dimensional model of pile-anchor supported bank,behavior of the supporting system and reinforcement mechnism of load-dispersive anchor cable in response to soil filling,installation of prestressed anchor cables and channel excavation is discussed.The results show that both pile and cable behave well in the supporting system.In order to control piles displacement,prestressed anchor cables ane suggested to be installed before soil filling.更多还原