- 摘 要
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（華藍(lán)設(shè)計(jì)集團(tuán)有限公司， 南寧 530011）
［摘要］針對在實(shí)際工程中采用鉆芯法檢測大直徑嵌巖樁所遇到的樁端持力層與勘察和設(shè)計(jì)不符，且取不出用于檢測巖石強(qiáng)度及承載力的樁端巖芯芯樣，樁身強(qiáng)度不滿足設(shè)計(jì)要求等，因而無法確定單樁豎向承載力這一難題，提出新的檢測方案。并通過加設(shè)芯樁提高了該樁的樁身承載力及樁端承載力，避免因異位補(bǔ)樁而造成的設(shè)計(jì)困難及工期、造價(jià)大幅增加的問題。
［關(guān)鍵詞］大直徑嵌巖樁； 鉆芯法檢測； 補(bǔ)充檢測； 加固辦法
中圖分類號： TU473.1 文獻(xiàn)標(biāo)識碼： A 文章編號： 1002-848X(2015)S2-0213-04
Discussion on vertical bearing capacity identification and reinforcement method of
large diameter embedded rock pilesChen Wenqiang
(Hualan Group Co., Ltd., Nanning 530011, China)
Abstract: According to the problems that bearing course at pile end of large diameter embedded rock pile encountered in actual engineering by drilling core method detection does not match that of survey and design, no taking core core sample used for the detection of rock strength and bearing capacity of pile end, and pile strength does not meet the design requirements, therefore it′s unable to determine the vertical bearing capacity of single pile, new detection scheme was proposed. The bearing capacity of pile body and pile end bearing capacity of he pile were improved through adding core pile which avoids the design difficulties and substantial increase of construction time and the cost caused by ectopic filling pile for a project.
Keywords: large diameter embedded rock pile; drilling core detection; supplementary detection; reinforcement method
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