压力分散型锚杆与挡土墙加固机理及影响因素分析  

Mechanism and Influencing Factors of Pressure Dispersed Ground Anchor and the Retaining Wall Reinforcement

作　　者：林利坚 LIN Lijian(Xiamen Huamin Construction Engineering Design Co.Ltd.,Xiamen 361000)

机构地区：[1]厦门华旸建筑工程设计有限公司,福建厦门361000

出　　处：《土工基础》2023年第5期792-796,共5页Soil Engineering and Foundation

摘　　要：通过数值模拟方法,结合实例对压力分散型锚杆和挡土墙联合加固机理和影响因素进行分析。结果表明:①分散型挡土墙结合锚定板,将锚杆预紧力施加在挡土墙后部土体之中,达到增加土体边坡稳定性的目的。②随着分散型锚杆数量的增加和挡土墙高度的减小,分散型锚杆影响范围占比不断增加,土体土压力不断减小,分散型挡土墙锚固效果越好。但是锚杆数量达到一定程度后,盲目增加锚杆数量对加固效果影响不大。③锚杆位于挡土墙中部加固效果最好,位于挡土墙顶部和底部加固效果较小。锚杆位于挡土墙中部,可对中上部到中下部土体进行加固,将不稳定土体隔离分开,增加了加固可靠性。In this paper,the mechanism and influence factors of combined reinforcement of pressure dispersed ground anchor and retaining wall are analyzed by the numerical simulation on a practical example.The results show that the pressure dispersed ground anchor can strengthen the soil slope by applying the prestress of the ground anchor to the soil between the retaining wall and the anchor plate.As the height of the retaining wall decreases and the number of the ground anchor increases,the soil pressure decreases and the stability of reinforcement effect increases.When the anchor bolt is set in the middle of the retaining wall,the reinforcement effect is the best.

关 键 词：压力分散型 锚杆 挡土墙 加固机理 影响因素 

分 类 号：TU476[建筑科学—结构工程]