- 摘 要
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（上海核工程研究設計院， 上海 200233）
［摘要］采用預應力錨索＋腰梁的加固體系對某一級邊坡進行支護，建立三維模型，先采用有限元強度折減法對開挖支護前、后的邊坡進行分析，得到邊坡支護前、后的安全系數(shù)，再對開挖完支護后穩(wěn)定狀態(tài)的邊坡進行靜力分析，得到邊坡變形、錨索軸力的計算值。進行邊坡變形與錨索軸力監(jiān)測，分析了實測值與計算值的差異。結果表明：錨索＋腰梁的支護體系能有效地控制邊坡位移和整體穩(wěn)定性，并且邊坡位移變化、錨索軸力變化是有規(guī)律的，研究成果可為類似邊坡工程的支護設計和施工提供參考。
［關鍵詞］強度折減法； 數(shù)值分析； 邊坡支護； 邊坡監(jiān)測
中圖分類號： TU457 文獻標識碼： A文章編號： 1002-848X(2016)S1-0737-05
Support design and monitoring analysis of pump room slope of certain nuclear power plant
Ma Bo, Gu Shengquan, Ge Honghui, Luo Lanying
(Shanghai Nuclear Engineering Research & Design Institute, Shanghai 200233, China)
Abstract: Adopt prestressed anchor cable and beam to support certain grade I slope, establish three-dimensional model, firstly adopt FEM strength reduction method to analyse no support slope and support slope, get slope safety factor, secondly adopt statics method to analyse excavation and support slope, get the calculation value of slope deformation and axis force of prestressed anchor cable. Monitor slope deformation and axis force of prestressed anchor cable, and analyse the difference of monitoring data and calculation. The result shows that the support system of prestressed anchor cable and beam can effectively control slope deformation and slope stability, and change of slope deformation and axis force is disciplinary. The investigation result can provide reference for support design and construction of analogous slope engineering.
Keywords: strength reduction method; numeric analysis; slope support; slope monitoring
作者簡介：馬波，碩士，高級工程師，一級注冊結構工程師，Email:marble1993@sohu.com。
