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（1 廣州容柏生建筑結(jié)構(gòu)設(shè)計(jì)事務(wù)所， 廣州  510170； 2 廣東建科建筑工程技術(shù)開發(fā)有限公司巖土分公司， 廣州  510599）

［摘要］對(duì)某巖溶強(qiáng)發(fā)育地區(qū)項(xiàng)目，根據(jù)其豎向力小但抗浮要求高的特點(diǎn)，設(shè)計(jì)中對(duì)預(yù)應(yīng)力管樁、灌注樁及剛樁樁復(fù)合地基基礎(chǔ)進(jìn)行造價(jià)、施工難度以及工期等方面的全面比較。最終采用了剛性樁復(fù)合地基基礎(chǔ)，有效地解決了此類巖溶強(qiáng)發(fā)育地區(qū)基礎(chǔ)工程的難點(diǎn)，在確保安全的前提下實(shí)現(xiàn)了工期和造價(jià)可控。

［關(guān)鍵詞］溶洞； 剛性樁復(fù)合地基； 工期； 造價(jià)

中圖分類號(hào)：TU398-7文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2020)04-0136-04

Application of rigid pile composite foundation in a large amusement project in karst area

Li Dongcun1, Liao Yun1, Gu Lanfang2, Sha Xianglin2

（1 RBS Architectural Engineering Design Associates, Guangzhou 510170, China; 2 Guangdong Jian Ke Construction Engineering Technology Development Co., Ltd.， Geotechnical Branch Company, Guangzhou 510599, China）

Abstract:According to the characteristics of small vertical force but high anti-floating requirement, the cost, construction difficulty and construction period of prestressed pipe pile, cast-in-place pile and rigid pile composite foundation were compared comprehensively in the design of a project in a strong karst development area. Finally, the rigid pile composite foundation was adopted, which effectively solved the difficulties of foundation engineering in this kind of karst strong development area, to realize the controllable construction period and cost on the premise of ensuring safety.

Keywords:karst cave; rigid pile composite foundation; construction period; cost

作者簡(jiǎn)介：李東存，學(xué)士，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：lidongcun @gzrbs.com。