某京沪高铁软土路基PHC管桩桩网结构施工技术  

Construction Technology of PHC Tube Pile-net Structure in Soft Soil Foundation Treatment of Beijing-Shanghai High-speed Railway

作　　者：谢大伟[1] 陈利民[1] 

机构地区：[1]上海铁路局南京桥工段,江苏南京210015

出　　处：《施工技术（下半月）》2011年第4期93-95,共3页Construction Technology

摘　　要：PHC管桩桩网结构由加筋土、复合褥垫层和桩土加固区三部分组成,对其加固机理进行研究。通过PHC管桩桩网结构在京沪高铁路基工程中的应用,对PHC管桩桩网结构处理软土地基的施工工艺、质量控制要点及注意事项、加固处理效果进行了详细阐述。实践证明,PHC管桩桩网加固的复合地基具有良好的承载能力,地基沉降满足要求,取得良好效果。PHC tube pile-net structure consists of reinforced earth,composite cushion and pile-soil reinforcement area.The reinforcement mechanism of PHC tube pile-net structure is researched.Based on Beijing-Shanghai high-speed railway,construction technology,quality control points and attention factors of PHC tube pile-net structure are introduced,as well as reinforcement effect.It proves that good bearing capacity of composite foundation is gained by reinforcing with PHC tube pile-net structure,and the settlement of foundation is controlled in allowable range.Furthermore,good reinforcement effect of the composite foundation in high-speed railway can be gained.

关 键 词：京沪高铁 PHC管桩桩网 软基处理 加固效果 

分 类 号：TU755.3[建筑科学—建筑技术科学] U443.15[建筑科学—桥梁与隧道工程]