- 摘 要
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姜洪偉
（中環(huán)投資開發(fā)（集團）有限公司 上海 200063）[提要] 對上海及臺北的數(shù)十個深基坑工程實測進行總結分析，探討墻體的最大水平位移、墻后地表沉降的變化范圍、發(fā)生位置及二者之間的數(shù)值關系，應用各向異性理論分析深基坑抗隆起穩(wěn)定；根據(jù)工程實測結果，探討各向異性抗隆起穩(wěn)定安全系數(shù)與墻體最大水平位移之間的變化關系，并依照深基坑變形控制標準，制定抗隆起穩(wěn)定安全系數(shù)取值標準。
[關鍵詞] 墻體水平位移 地表沉降 抗隆起穩(wěn)定 安全系數(shù) 控制標準Based on the analysis of several tens deep excavation casas in Shanghai and Taibei, this paper is to study the characteristics of excavation behavior, including the magnitude and location of maximum lateral wall deflection and maximum ground surface settlement, relationship of maximum lateral wall deflection and maximum ground surface settlement. Applying the anisotropy constitutive theory of soft clay into the analysis of heave-resistant stability for deep excavation, the relationship of safety factor for stability and maximum lateral wall deflection can be achieved. Then, according to the deformation control standard of deep excavation, the evaluating standard of safety factor of heave-resistant stability is drawn up.
Keywords: lateral wall deflection; ground surface settlement; heave-resistant stability; safety factor; control standard
