减少锚杆静压桩挤土效应方法及预防措施

锚杆静压桩为挤土型桩,压桩过程中产生的挤土效应明显,产生的挤压作用使桩区及附近的土体产生向上隆起和水平位移,桩体上抬、偏位时有发生.论文阐述了锚杆静压桩在基础加固过程中采取PHC管桩的压桩效应,对挤土效应进行了较详细地理论计算分析,得到桩塑性区半径解析表达式.提出了现有的减少沉桩挤土效应的设计和施工两方面的工程预防措施...

Method on Reducing Soil Squeezing Effect of Static-bolt Pile and Protective Measures

Anchor jacked pile type for soil compaction pile,piling produced during soil compaction effect obvious,and the resulting extrusion action to make the pile soil near the area and uplift and upward horizontal displacement produced a pile up,the deviation of occur frequently.This paper analyzes the process of the foundation reinforcement,anchor jacked pile take the piling mechanism PHC pipe pile,soil compaction effect detail the theoretical calculation,get pipe pile analytical expressions plastic zone radius.Presented the existing reduce pile soil compaction effect two aspects of the design and construction of engineering preventive measures,and is applied in engineering practice,some problems has been solved.