- 摘 要
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陳義侃
(福建省建筑設計研究院 福州 350001)[提要] 沖（鉆）孔樁因種種原因會導致單樁豎向承載力達不到設計要求，為此提出樁側高壓旋噴注漿的處理方法，對該方法提高單樁承載力的機理、施工要求及加固效果作了介紹。工程實踐表明，該方法安全、可靠，完全可以滿足設計要求，是樁基補強加固的一種較好方法，具有實用價值。
[關鍵詞] 沖（鉆）孔樁 補強 樁側高壓旋噴注漿 瑞雷波檢測For a variety of reasons, the bearing capacity of drilled( bored) pile could not fulfill design requirements. A treatment method of high-pressure jet grouting around pile to improve the bearing capacity is come up with. The bearing mechanism, the construction demands and the strengthening effect are expounded. Based on engineering practices, the treatment method is proved to be safe and reliable, and the treatment results entirely meet the design requirements. The method is rather effective to strengthen pile and is provided with practical values.
Keywords: drilled(bored)pile; high-pressure jet grouting; rayleigh wave test; strengthening
