基于ADINA的钢筋混凝土衬砌安全性分析  

Study on Analysis Method of Safety of Reinforced Concretelining Based on ADINA

作　　者：刘杰[1,2] 苑腾飞 唐亮[1,2] 颜溧洲 

机构地区：[1]三峡大学,湖北宜昌443002 [2]三峡地区地质灾害与生态环境湖北省协同创新中心,湖北宜昌443002

出　　处：《人民黄河》2016年第7期111-113,118,共4页Yellow River

基　　金：水利部公益性行业科研专项(201401029);"十二五"国家科技支撑计划项目(N2015BAB07B08-01-01);国家自然科学基金面上项目(51579138)

摘　　要：基于新奥法的衬砌施工理念及透水衬砌理论,采用ADINA有限元软件,以衬砌内混凝土和钢筋结构极限承载力为判别标准,对丹巴水电站引水隧洞在外水压力、内水压力及灌浆压力工况下衬砌的安全性进行了分析评价。数值分析结果表明:该深埋高地应力引水隧洞衬砌在外水压力和灌浆压力作用下,衬砌内混凝土和钢筋处于完全受压状态,其内力满足承载力要求;在内水压力作用下,衬砌满足抗压承载力要求,但受到较大拉应力,衬砌易开裂。Based on the New Austrian tunneling theory and permeable lining theory,using the ADINA finite element software,the ultimatebearing capacity of the concrete and steel lining as the criteria,the safety of lining under the external water pressure,internal water pressureand grouting pressure were analyzed and evaluated. Numerical analysis results indicate that：the concrete and steel in the lining of highlandstress and deeply buried water diversion tunnel of Danba Power Station under external water pressure and grouting pressure are in the fullycompressed state basic,the internal forces meet the requirements of carrying capacity;under the internal water pressure,lining meet therequirements of compressive bearing capacity,but is subject to greater tensile stress and the lining is easy to crack.

关 键 词：引水隧洞 承载力 透水衬砌 安全性 

分 类 号：TV732.5[水利工程—水利水电工程]