深基坑內(nèi)加固與墻體側(cè)向位移的相互影響實測分析*
黃宏偉 任 臻 錢 偉
- 摘 要
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黃宏偉 （同濟大學地下系 上海 200092）任 臻 錢 偉 （上海黃埔江行人隧道聯(lián)合發(fā)展公司 200122）
[提要] 深基坑圍護墻體的側(cè)向位移是基坑開挖與施工中首要控制的變量，也是基坑施工中的關(guān)鍵變量。針對上海市黃浦江行人隧道浦東豎井的基坑開挖，對坑內(nèi)降水和加固的效果以及墻體側(cè)向位移進行了分析，討論了不同加固方法對改善和提高坑內(nèi)土體力學參數(shù)的效果，及對墻體位移的影響。
[關(guān)鍵詞] 深基坑 加固 側(cè)向位移The lateral deformation of retaining wall is a very important and key variable in excavation engineering.
Based on the excavation engineering on Pudong shaft in Shanghai Huangpu River pedestrian tunnel, the affection of dewatering and improvement on lateral deformation of retaining wall are studied, and also, the results of improvement of soil behaviors and lateral deformation of retaining wall by using different improvement methods are discussed.
Keywords: deep excavation;improvement;lateral deformation
