APPLICATION STUDY ON DESIGN PARAMETERS OF CAST-IN-PLACE CONCRETE SCREW PILE
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摘要: 采用静载试验及数值计算相结合的方法,分析混凝土灌注螺纹桩桩周土体应力分布情况、螺齿宽度、螺距等桩型参数对螺纹桩承载性能的影响,得出对螺纹桩承载性能的影响规律,以优化桩型设计参数。通过对工程造价的比较,表明螺纹桩与直桩在相同承载力下,造价大大降低。Abstract: Using the combination of static load test and numerical calculation,the effects of pile parameters such as the stress distribution of soil surrounding a pile,helical width and helical pitch etc on the bearing behavior of a bored screw pile were analyzed,whose influencing laws were obtained,thus optimizing the design parameters of this sort of pile.Through a comparison of project cost,the cost of a screw pile is much lower than that of normal one under same bearing capacity.
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Key words:
- concrete bored screw pile /
- static load test /
- design parameters of pile
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赵娣.螺杆桩在高层建筑物中的应用[J].铁道建筑技术,2009(6):121-123. [2] 孙文怀,张元冬,魏厚峰.螺纹桩在软弱地层中的应用[J].华北水利水电学院学报,2009,30(3):74-76. [3] 赵明华,李微哲,单远铭.DX 桩抗拔承载机理及设计计算方法研究[J].岩土力学,2006,27(2):199-203.
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