摘要
《建筑地基处理技术规范》JGJ79—2012中的m值计算公式在应用上有一定的局限性。利用复合土体单元概念,通过对不同布桩形式下复合土体单元的划分,实现了m值的准确计算。结果表明:m值的计算不仅由布桩形式决定,还与复合地基的形式(均布或条形)密切相关,主要由桩间数n和桩径与桩间距之比d/s两个参数决定。
The calculation equations of soil-column area replacement ratio( m) recommended by Chinese code'Technical Code for Ground Treatment of Buildings( JGJ79—2012) 'have many limits in the practice. In this paper,general equations of m value are derived by subdividing the composite soil element under the different pile arrangements. The results show that m value is closely related to both pile arrangement and shape of composite foundation and is determined by the two parameters: interval number among piles( n) and pile diameter-spacing ratio( d / s).
出处
《施工技术》
CAS
北大核心
2013年第S2期104-107,共4页
Construction Technology
关键词
复合地基
桩土面积置换率
复合土体单元
布桩形式
composite subgrade
soil-column area replacement ratio
composite soil elements
pile arrangement
