砂卵石持力层桩端注浆灌注桩承载力与荷载传递规律  

BEARING CAPABILITY OF BOTTOM-GROUTED SHINGLE-BEARING-LAYER BORE PILE AND LAW OF LOAD TRANSFER

作　　者：王志辉[1] 刘斌[1] 庄平辉[2] 

机构地区：[1]东北大学,资源与土木工程学院沈阳110006 [2]福建省建筑科学研究院,福州350001

出　　处：《工业建筑》2001年第8期40-42,26,共4页Industrial Construction

基　　金：福建省科委基金资助项目

摘　　要：通过对现场 5根大直径桩端注浆灌注桩的静载试验 ,对大直径桩端注浆灌注桩的承载力和荷载传递曲线进行了初步的研究和分析。结果表明 ,经过注浆 ,使原来的摩擦桩变为端承摩擦桩 ,桩端阻力和桩侧摩阻力得到了大幅度的提高 。Through dead load experimental study on 5 large diameter grouted bore piles in site, initial study and analysis of bearing capability and curve of large diameter bottom grouted bore pile are presented. The result indicates that original side frictional pile was changed into end bearing frictional pile after grouting and the resistance of the end and side of pile is increased. The increased extent of the side resistance is ranged from the end of the pile to 9～10m above.

关 键 词：注浆 灌注桩 砂卵石 荷载传递 桩端阻力 

分 类 号：TU473.1[建筑科学—结构工程]