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（中聯(lián)環(huán)建文建筑設(shè)計(jì)有限公司，  北京  100098）

［摘要］梳理了地基土承載力特征值計(jì)算時(shí)基礎(chǔ)寬度和深度的修正原理，明確了筏板基礎(chǔ)也應(yīng)進(jìn)行基礎(chǔ)寬度修正，基礎(chǔ)埋置深度d應(yīng)按基礎(chǔ)周邊土頂標(biāo)高最小的原則取值；且明確了基礎(chǔ)埋置深度d的取值與新近回填土的回填時(shí)間無關(guān)，并分析了基礎(chǔ)埋置深度d的取值與施工過程的關(guān)系，給出了挖方區(qū)與填方區(qū)及主裙樓各種情況下的基礎(chǔ)埋置深度d的取值原則。

［關(guān)鍵詞］地基承載力特征值； 寬度修正； 深度修正

中圖分類號(hào)：TU470+.3文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2017)15-0090-03

Analysis and engineering application of width and depth correction principles for characteristic value of foundation bearing capacity

Chen Xiangdong

(United Architects & Engineers Co., Ltd., Beijing 100098， China)

Abstract:The foundation width and depth correction principles in calculating the foundation soil bearing capacity characteristic value were analyzed to make it clear that the width correction is necessary in raft foundation design and that the buried foundation depth d should be determined according to the minimum value of top elevation of the soil around the foundation. And the value of buried foundation depth d has nothing to do with the backfill time of newly backfill soil. The relationship between the buried foundation depth d and the construction process was analyzed. The principle for determining the values of the buried foundation depth d in foundation excavation area, backfill area and the main building area under various conditions were given.

Keywords:characteristic value of foundation bearing capacity; width correction; depth correction

作者簡(jiǎn)介：陳向東，碩士，工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email:790123312@qq.com。