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    李運(yùn)城    胡照勇
    （安陽(yáng)市建筑設(shè)計(jì)研究院 455000）

[提要]  根據(jù)對(duì)堆載預(yù)壓經(jīng)驗(yàn)公式的研究及多年設(shè)計(jì)經(jīng)驗(yàn)，結(jié)合疏樁設(shè)計(jì)理論，提出了在沒(méi)有新的地質(zhì)資料的情況下，如何利用原基礎(chǔ)合理確定挖擴(kuò)樁樁距和樁徑。
[關(guān)鍵詞]  基礎(chǔ)  疏樁設(shè)計(jì)加層改造

Based on the research of pile up load prestressed experience formula and the designing experience, combining the designing theory of the rarely distributed pile, the authors presents how to reasonably determine the pile's distance and diameter with bulb shaped base in site on the original building base without knowing the new geological information.
Keywords:  masonry structure; original foundation; rarely distributed pile; reforming