PHC管桩在大面积深厚粉煤灰场地中的应用  

Application of PHC pile in massive and deep fly ash site

作　　者：何德洪 He Dehong(Architectural Design and Research Institute Co.Ltd.of Henan Province,Zhengzhou 450014,China)

机构地区：[1]河南省建筑设计研究院有限公司,郑州450014

出　　处：《工程勘察》2018年第9期24-28,78,共6页Geotechnical Investigation & Surveying

摘　　要：结合实例工程,分析大量的外业勘探、原位测试、室内试验及多方案试桩数据,对预应力高强混凝土管桩(PHC)的承载力性能进行了深入的研究。通过现场静载荷试验,研究了PHC管桩在大面积深厚粉煤灰场地中的承载性能、桩顶沉降量以及水平抗力系数的变化情况,确定了单桩承载力特征值的取值。根据本文的研究成果,进一步说明了粉煤灰场地中进行PHC管桩试验研究的重要性,同时也为类似工程项目的桩基设计与施工提供借鉴和参考。Based on the project practice,a large number of field exploration,in-situ and indoor tests,pile loading test data are analysed to study the bearing capacity of PHC pile. Through the field static load test,the bearing capacity,the pile top settlement and the horizontal resistance coefficient of PHC piles in the massive and deep fly ash site are studied. According to the research results of this paper,the experimental research on the PHC pile in the fly ash site is very important. The study results could be referred for the design and construction of the pile foundation of similar projects.

关 键 词：PHC管桩 粉煤灰 承载性能 静载荷试验 

分 类 号：TU473[建筑科学—结构工程]