本文選題：基坑開挖　切入點：擾動位移峰值分布　出處：《應(yīng)用力學學報》2016年06期 　論文類型：期刊論文

【摘要】：采用一般化基坑開挖數(shù)值模型,系統(tǒng)研究了基坑開挖擾動位移峰值分布的區(qū)域性及其隨寬深比、土體變形參數(shù)、土體強度參數(shù)等的變化規(guī)律和力學成因。建立了水平位移峰值、豎向位移峰值隨基坑寬深比的統(tǒng)一計算公式。在參數(shù)敏感性分析系統(tǒng)基礎(chǔ)上,建立了考慮土體強度特性、剛度特性等綜合條件下基坑開挖擾動位移預(yù)測統(tǒng)一計算公式。該研究對基坑圍護結(jié)構(gòu)參數(shù)設(shè)計以及開挖穩(wěn)定性的預(yù)測具有參考意義。
[Abstract]:Based on the general numerical model of foundation pit excavation, this paper systematically studies the regional distribution of disturbance displacement peak distribution of foundation pit excavation, the variation law of soil deformation parameter, soil deformation parameter and soil strength parameter with width to depth ratio and mechanical origin, and establishes the horizontal displacement peak value. Based on the parameter sensitivity analysis system, a unified formula for calculating the peak value of vertical displacement with the ratio of width to depth of foundation pit is established, and the strength characteristics of soil are taken into account. The unified calculation formula for prediction of disturbance displacement in excavation under comprehensive conditions such as stiffness characteristics is of reference significance for the parameter design of foundation pit retaining structure and the prediction of excavation stability.
【作者單位】： 上海交通大學船舶海洋與建筑工程學院;上海交通大學海洋水下工程科學研究院;
【分類號】：TU753
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本文編號：1590274