本文介绍了现浇混凝土薄壁管桩技术及其在上海北环高速公路软基加固中应用。
Thin-wall Pipe Pile Using Cast-in-situ Concrete (named PCC) technology and the application in soil improvement of Shanghai Beihuan express way are introduced.
重点介绍了采用现浇混凝土薄壁筒桩处理软基的施工工艺和技术要点。
This paper introduces the construction technologies and key technical points for weak subgrade treatment with the thin cast-in-place concrete cylindrical piles.
基于该模型分析了褥垫层模量、桩间距、桩长、土体模量等因素对现浇薄壁管桩复合地基承载性能的影响。
Based on the model, the effect of cushion stiffness, pile spacing, pile length and soil modulus on the bearing capacity was analyzed.
试验结果表明：现浇薄壁管桩成桩质量好，承载性能好。
It was shown that the piles were of good quality and high bearing capacity.
研究结果表明：振动沉模现浇混凝土管桩技术是高等级公路软基加固中的高效、经济的新技术。
So the field pour concrete cased pile with vibrated steel tube mould technology is an effective and economical technology for soil improvement.
现浇薄壁管桩低应变检测时，存在桩头三维效应以及平截面假定的适应性问题。
The three-dimensional effects of pile head and applicability of plane-section assumption are main problems in low strain dynamic tests on cast-in-situ concrete thin-wall pipe piles.
建立现浇薄壁管桩复合地基三维模型，通过有限元模拟，与现场静载试验结果对比，表明建立的模型是可行的。
A 3d model was established for the composite foundation with cast-in-situ concrete thin-wall pipe piles. It was shown by the results of finite element analysis that the present model was reasonable.
建立现浇薄壁管桩复合地基三维模型，通过有限元模拟，与现场静载试验结果对比，表明建立的模型是可行的。
A 3d model was established for the composite foundation with cast-in-situ concrete thin-wall pipe piles. It was shown by the results of finite element analysis that the present model was reasonable.
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