復(fù)合樁基應(yīng)用范圍的探討
田 榮
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（中鐵第四勘察設(shè)計(jì)院集團(tuán)有限公司， 武漢 430063）[摘要] 以《建筑樁基技術(shù)規(guī)范》（JGJ 94—2008）為基礎(chǔ)，探討復(fù)合樁基設(shè)計(jì)的應(yīng)用范圍。針對(duì)常用的大、中型直徑的非擠土樁，作者以圖表的方式，比較了獨(dú)立承臺(tái)下不同樁徑及樁長(zhǎng)的承臺(tái)效應(yīng)系數(shù)，提出了不考慮承臺(tái)效應(yīng)的簡(jiǎn)化設(shè)計(jì)方法。[關(guān)鍵詞] 復(fù)合基樁; 樁土共同作用; 承臺(tái)效應(yīng)系數(shù)中圖分類號(hào)：TU473.1+2 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2013)S2-0671-03作者簡(jiǎn)介：田榮，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：tttrrrtr@sina.comDiscussion on the range of application of composite pile foundationTian Rong(The Fourth survey and Design institute of China Railway, Wuhan 430063, China)Abstract: Based on the Technical Code for Building Pile Foundations (JGJ94-2008), the application range of composite pile foundation was mainly discussed in this paper. Aiming at the non-squeeze out soil pile which has large and medium diameter, the author made a comparison about the pile caps effect coefficient of the pile caps which has different pile diameter and pile length by the chart way. Finally, the simplified design method not considering the pile cap effect was proposed.Keywords: composite foundation pile; combined action of single pile and soil; Pile cap effect coefficient
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