FULL-SCALE TEST STUDY ON BEARING MECHANISM AND LOAD TRANSMISSION MODE OF DX PILES CAST-IN-SITU
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摘要: 通过大比例尺的现场模型DX桩静荷载试验,对DX桩的承载力机理进行了分析。通过对比同等地质条件下直孔桩与DX桩承载力的差异,给出了DX桩的荷载传递曲线,分析了DX桩的荷载传递规律,为DX桩的承载力设计提供参考。Abstract: The mechanism of bearing capacity of DX piles are studied by a series of loading tests of full-sacle model DX Piles cast-in-situ. In the paper, bearing capacity comparisons between column piles and DX piles are made, and the load transmission mode of DX pile are studied, which provided the theoretical references for the bearing capacity design of the DX piles in the engineering practice.
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Key words:
- DX pile /
- static loading test /
- bearing capacity /
- load transfer branch /
- bearing plate /
- full-scale model /
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[2] 沈保汉, 贺德新, 陈轮, 等.DX多节挤扩灌注桩.岩土工程界, 2002.5(4):30~35 贺德新, 沈保汉.DX挤扩装置及DX多节挤扩桩的应用.工业建筑, 2001, 31(1):27~31 [3] 王海燕.大比例尺现场模型DX桩的试验研究:[硕士学位论文].北京:清华大学, 2003.5 [4] 孟高头.土体原位测试机理方法及其工程应用.北京:地质出版社, 1997 [5] 沈保汉.评价桩垂直承载能力的s-lgQ法的应用与发展.建筑技术科研情报, 1982(3):11~21
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