- 摘 要
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（南京軍區(qū)建筑設(shè)計院 210029）
【提要】在進行天然地基上淺基礎(chǔ)的設(shè)計時，必須驗算地基承載力。如果存在軟弱下臥層，還必須進行軟弱下臥層承載力驗算。根據(jù)《建筑地基基礎(chǔ)設(shè)計規(guī)范》（GB50007—2002）中關(guān)于地基承載力計算及軟弱下臥層承載力驗算的相關(guān)規(guī)定，推導(dǎo)出一種可直接計算出滿足要求的基礎(chǔ)底面積的簡便計算方法。運用該方法可準(zhǔn)確地求出基礎(chǔ)底面積而不必反復(fù)驗算。
【關(guān)鍵詞】 基礎(chǔ)底面積 地基承載力 軟弱下臥層
Simple Method to Determine Base Area of Natural Subgrade with Soft Substratum/Zhao Yanqiu，Bao Yuming (Nanjing Military Area Architecture Design Institute, Nanjing 210029, China)
Abstract:In the design of shallow foundation, the checking computation of the subgrade bearing capacity must be conducted. If there exists soft substratum, the checking computation of the soft substratum bearing capacity must be conducted. Based on the calculation rule of subgrade bearing capacity and verification of soft substratum bearing capacity in Code for design of building foundation (GB50007—2002), a simple method to determine the bottom area of foundation innatural subgrade is presented. The bottom area of foundation is calculated accurately with this method,and the trialcalculation is not needed.
Keywords:base area; subgrade bearing capacity; soft substratum
