- 摘 要
-
（同濟大學(xué)建筑設(shè)計研究院集團有限公司， 上海 200092）
［摘要］由于經(jīng)濟發(fā)展及生產(chǎn)力水平較低等歷史原因，上海20世紀(jì)90年之前建設(shè)的房屋多為淺基礎(chǔ)磚混及磚木結(jié)構(gòu)，樓板多采用預(yù)制多孔板，結(jié)構(gòu)構(gòu)造薄弱、整體性差。而隨著上海城市建設(shè)的快速發(fā)展，城市用地愈發(fā)緊張，地下空間開發(fā)的規(guī)模越來越大，越來越多的工程項目將緊鄰上述多層房屋施工。因此，如何在地下空間開發(fā)過程中，控制深大基坑開挖卸載對周邊多層房屋的不利影響，已經(jīng)成為非常迫切而重要的課題。本文將綜合各種基坑周邊環(huán)境保護措施，并結(jié)合上海地區(qū)正在實施的深大基坑工程實踐，分析評價分區(qū)開挖卸載、隔離樁等措施在地下空間開發(fā)過程中對周邊多層房屋保護的實踐效果。
［關(guān)鍵詞］深大基坑； 分區(qū)卸荷； 隔離樁； 建筑沉降； 軸力伺服控制
中圖分類號： TV551.4+2 文獻標(biāo)識碼： A文章編號： 1002-848X(2015)S2-0039-05
作者簡介：張羽，碩士，工程師，一級注冊結(jié)構(gòu)工程師，注冊土木工程師（巖土），Email：4276019@qq.com。
Study on response measures to the adverse effects of underground space
development in the area of soft soil
Zhang Yu
（Tongji Architectural Design (Group) Co., Ltd., Shanghai 200092, China）
Abstract: Due to the lower levels of economic development and productivity in Shanghai before the 1990s, the construction of housing mostly used the shallow foundation, brick and wood structure and precast porous plate, so the structure and integrity is poor. With the rapid development of urban construction in Shanghai, urban land use is increasingly tight, the scale of the underground space development is growing, and more and more projects will be constructed close to the aforementioned multi-storey housing. Therefore, in the process of underground space development, how to control the adverse effects with deep foundation pit excavation and unloading of surrounding multi-storey housing has become very urgent and important task. In this paper, integrated the comprehensive environmental protection measures and combined with the engineering practice of deep foundation pit in Shanghai, the practice effect of unloading, isolation pile and other measures to surrounding multi-storey housing protection in the process of underground space development were analyzed and evaluated.
Keywords: deep foundation pit; divisional unloading; isolation pile; building settlement; axial force servo control
