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(1 上海申元巖土工程有限公司， 上海 200011； 2 中國建筑第八工程局有限公司， 上海 200135)
［摘要］結(jié)合上海深坑酒店建設(shè)項(xiàng)目邊坡加固工程，探討基于變形控制的邊坡加固設(shè)計(jì)方法，通過引入三維動(dòng)力有限單元法分析加固前后邊坡變形特性及穩(wěn)定性，驗(yàn)證加固方案的可行性。研究表明，采用預(yù)應(yīng)力錨索+錨桿的加固方案能達(dá)到穩(wěn)定性控制與變形控制的加固目的，加固后邊坡位移明顯降低，穩(wěn)定性安全系數(shù)明顯提高，滿足抗震穩(wěn)定性及變形控制要求。地震作用下，邊坡加速度響應(yīng)隨邊坡高度逐漸放大，土層的放大效應(yīng)較巖層更為明顯；巖層軟弱結(jié)構(gòu)面處邊坡加速度響應(yīng)放大較為明顯。
［關(guān)鍵詞］上海深坑酒店；變形控制；高邊坡；邊坡加固；強(qiáng)度折減法；動(dòng)力有限單元法
中圖分類號(hào)：TU457-1 文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)23-0008-05
Research on reinforcement design of high and steep slope based on deformation control for InterContinental Shanghai Wonderland Hotel
LIANG Zhirong1, LIU Jingde1, LI Wei1, WEI Xiang1, CHEN Xinxi2, LI Yun2, YU Shaole2
(1 Shanghai Shen Yuan Geotechnical Engineering Co., Ltd., Shanghai 200011， China；2 China Construction Eighth Engineering Division Co., Ltd., Shanghai 200135， China)
Abstract: Combined with the slope reinforcement engineering of InterContinental Shanghai Wonderland Hotel construction project, the slope reinforcement design method based on deformation control was discussed. By introducing three-dimensional dynamic finite element method to analyze the deformation characteristics and stability of slope before and after reinforcement, the feasibility of the reinforcement scheme was verified. The study shows that the reinforcement scheme of prestressed anchor cable and anchor rod can achieve the purpose of stability control and deformation control, and the slope displacement is obviously reduced and the stability safety factor is obviously improved after reinforcement, which meets the requirements of seismic stability and deformation control. The acceleration response of slope amplifies with slope height, and the amplification effect of soil layer is more obvious than rock layer. The acceleration response of the slope at the soft structural plane of rock stratum is obviously amplified.
Keywords:InterContinental Shanghai Wonderland Hotel; deformation control； high slope； slope reinforcement； strength reduction method； dynamic finite element method
*上海市青年科技啟明星計(jì)劃資助（20QB1400600），上海市優(yōu)秀技術(shù)帶頭人資助計(jì)劃項(xiàng)目（14XD1420400），華建集團(tuán)科研計(jì)劃項(xiàng)目（18-1類-0081-地）。
作者簡介：梁志榮，碩士，教授級(jí)高級(jí)工程師，Email:llq009@vip.sina.com； 通信作者：劉靜德，博士，高級(jí)工程師，Email：liu-jd03@126.com。
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