本文選題：基坑 + 均勻試驗��； 參考：《建筑結(jié)構(gòu)》2016年24期

【摘要】：在基坑工程中,土層m值的選取直接影響支擋結(jié)構(gòu)的位移和內(nèi)力,但是目前在基坑設(shè)計過程中,m值主要是通過經(jīng)驗公式選取。結(jié)合均勻試驗和ACE非參數(shù)回歸構(gòu)建高效的響應(yīng)面,利用Monte Carlo模擬技術(shù)枚舉出大量m值參數(shù)。以不同工況下的實測位移數(shù)據(jù)作為約束條件,設(shè)定容差范圍,通過逐步增加篩分工況和逐步縮小容差范圍來重復(fù)篩分,從而進(jìn)一步逼近真實值。通過對某實際基坑工程進(jìn)行算例分析及驗證,結(jié)果表明該方法是有效可行的。
[Abstract]:In foundation pit engineering, the selection of soil layer m value directly affects the displacement and internal force of retaining structure, but at present in the foundation pit design process, m value is mainly selected by empirical formula. Combined with uniform test and ACE nonparametric regression, an efficient response surface was constructed, and a large number of m parameters were enumerated by Monte Carlo simulation technique. Taking the measured displacement data under different working conditions as the constraint condition, the tolerance range is set, and the range of tolerance is repeated by increasing the screening condition and gradually reducing the tolerance range, thus approaching the real value further. The results show that this method is effective and feasible through the analysis and verification of an actual foundation pit project.
【作者單位】： 昆明理工大學(xué)建筑工程學(xué)院;
【基金】：國家自然科學(xué)基金青年基金項(No.51108217)
【分類號】：TU753

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 孫長寧;曹凈;宋志剛;趙惠敏;桂躍;;基坑體系可靠度的條件概率計算方法[J];巖土力學(xué);2014年04期

2 吳朝陽;李正農(nóng);鐘e，

本文編號：1973079