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(廣西華藍(lán)巖土工程有限公司, 南寧 530001)
[摘要]《建筑地基處理技術(shù)規(guī)范》(JGJ 79—2012)中的“復(fù)合地基靜載荷試驗(yàn)要點(diǎn)”有如下條文:當(dāng)壓力-沉降曲線(xiàn)是平緩的光滑曲線(xiàn)時(shí),可按相對(duì)變形值確定,…,對(duì)有經(jīng)驗(yàn)的地區(qū),可按當(dāng)?shù)亟?jīng)驗(yàn)確定相對(duì)變形值。然而,按當(dāng)?shù)亟?jīng)驗(yàn)確定相對(duì)變形值的具體過(guò)程和步驟如何,規(guī)范卻沒(méi)有做進(jìn)一步的闡述。為此,針對(duì)這一問(wèn)題,結(jié)合在柳州某項(xiàng)目積累的一些CFG樁地基處理工程經(jīng)驗(yàn),進(jìn)行總結(jié)分析,以供探討。
[關(guān)鍵詞]CFG樁; 復(fù)合地基; 靜載荷試驗(yàn); 當(dāng)?shù)亟?jīng)驗(yàn); 相對(duì)變形
中圖分類(lèi)號(hào): TU472 文獻(xiàn)標(biāo)識(shí)碼: A 文章編號(hào): 1002-848X(2015)S2-0221-04
Discussion about relative deformation of CFG pile-composite foundation in
static load test according to the experience in the local
Deng Rihai, Li Junhua
(Guangxi Hualan Geotechnical Engineering Co., Ltd., Nanning 530001, China)
Abstract: The composite foundation static load test of Technical code for ground treatment of buildings (JGJ 79—2012) introduces that when pressure-settlement curve is gentle and smooth, relative deformation can be used; relative deformation can also be derived from the local experiences. However, how to work out is no elaborated in the code. Therefore, this problem was summarized and analyzed for discussion on the basis of the experience about CFG pile in Liuzhou.
Keywords: CFG pile; composite foundation; static load test; local experience; relative deformation
作者簡(jiǎn)介:鄧日海,高級(jí)工程師,一級(jí)注冊(cè)建造師,Email:nndrh1630788@sina.com。
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