本文選題：樁基礎(chǔ)　切入點(diǎn)：孔壓靜力觸探　出處：《巖石力學(xué)與工程學(xué)報(bào)》2017年02期 　論文類型：期刊論文

【摘要】：孔壓靜力觸探(piezocone penetration test,CPTU)原位測試提供的是最直接、最原始的土性參數(shù),可以精細(xì)化反映土層信息隨深度的非線性變化。采用原位測試CPTU錐尖貫入?yún)?shù)對(duì)樁基水平承載力進(jìn)行評(píng)價(jià),建立錐尖參數(shù)與p-y曲線參數(shù)的綜合對(duì)應(yīng)關(guān)系,提出基于CPTU原位測試的單樁p-y曲線計(jì)算及水平承載力確定方法。依托典型場地(靖江長江漫灘,宿遷廢黃河泛濫區(qū),蘇州昆山太湖流域)水平試樁資料,對(duì)比驗(yàn)證了CPTU法p-y曲線模型的準(zhǔn)確性及其在樁基水平承載預(yù)測中的可行性。結(jié)論表明:CPTU測試p-y曲線法能準(zhǔn)確反映水平受荷樁的土抗力發(fā)揮特點(diǎn),是一種高效、快速的樁基水平承載力確定方法。
[Abstract]:Piezocone penetration test (CPTU) in-situ test of pore pressure hydrostatic penetration provides the most direct and original soil parameters, which can reflect the nonlinear variation of soil information with depth. The horizontal bearing capacity of pile foundation is evaluated by in-situ measurement of CPTU cone penetration parameters. The synthetic correspondence between the parameters of the cone tip and the p-y curve is established, and the calculation of p-y curve and the determination of the horizontal bearing capacity of the single pile based on CPTU in-situ test are put forward. The typical site (Jingjiang Yangtze River floodplain, Suqian abandoned Yellow River flood area, Suqian abandoned Yellow River flood area) is established. Suzhou Kunshan Taihu Basin) horizontal pile test data, The accuracy of p-y curve model of CPTU method and its feasibility in the prediction of horizontal bearing capacity of pile foundation are compared and verified. The conclusion is that the p-y curve method tested by the CPTU method can accurately reflect the characteristics of soil resistance of horizontally loaded piles and is a kind of high efficiency. A fast method for determining horizontal bearing capacity of pile foundation.
【作者單位】： 東南大學(xué)巖土工程研究所;東南大學(xué)江蘇省城市地下工程與環(huán)境安全重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51279032) “十二五”國家科技支撐計(jì)劃項(xiàng)目(2012BAJ01B02) 江蘇省建設(shè)系統(tǒng)科技計(jì)劃項(xiàng)目(2014ZD66)~~
【分類號(hào)】：TU473.1

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1 趙明華;鄔龍剛;劉建華;;基于p-y曲線法的承重阻滑樁內(nèi)力及位移分析[J];巖石力學(xué)與工程學(xué)報(bào);2007年06期

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本文編號(hào)：1642094