交通科技
交通科技
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TRANSPORTATION SCIENCE & TECHNOLOGY
2015年
2期
71-74
,共4页
吕曹炯%黄贵明%张望胜%叶梦君
呂曹炯%黃貴明%張望勝%葉夢君
려조형%황귀명%장망성%협몽군
悬索桥%隧道锚%有限元%健康监测
懸索橋%隧道錨%有限元%健康鑑測
현색교%수도묘%유한원%건강감측
suspension bridge%tunnel anchor%finite element%health monitoring
采用有限元软件对坝陵河大桥隧道锚进行受力状态分析,表明隧道锚整体是稳定的,需对局部区域加强监控。根据应力计算结果,需加强监控的区域是前锚室空腔上部、后锚室空腔上部和支墩远离锚体一侧的下部;根据位移计算结果,需加强监控的区域是支墩及前锚室区域处围岩、主缆护室和后锚室围岩。根据计算结果确定隧道锚运营期健康监测测点的布设,并指导实测数据分析。
採用有限元軟件對壩陵河大橋隧道錨進行受力狀態分析,錶明隧道錨整體是穩定的,需對跼部區域加彊鑑控。根據應力計算結果,需加彊鑑控的區域是前錨室空腔上部、後錨室空腔上部和支墩遠離錨體一側的下部;根據位移計算結果,需加彊鑑控的區域是支墩及前錨室區域處圍巖、主纜護室和後錨室圍巖。根據計算結果確定隧道錨運營期健康鑑測測點的佈設,併指導實測數據分析。
채용유한원연건대패릉하대교수도묘진행수력상태분석,표명수도묘정체시은정적,수대국부구역가강감공。근거응력계산결과,수가강감공적구역시전묘실공강상부、후묘실공강상부화지돈원리묘체일측적하부;근거위이계산결과,수가강감공적구역시지돈급전묘실구역처위암、주람호실화후묘실위암。근거계산결과학정수도묘운영기건강감측측점적포설,병지도실측수거분석。
Numerical analysis about force state of the anchor of Balinghe Bridge and tunnel by using fi-nite element software has been performed in this paper.The results show that the anchor of tunnel is stable and partial location needs strengthening monitoring.According to the stress calculating results, the parts which need strengthening monitoring are the upside of former anchor chamber and behind anchor chamber and one side of lower part of buttress which is far from anchor.According to the dis-placement calculating results,the parts which need strengthening monitoring are the surrounding rock around buttress and former anchor chamber and behind anchor chamber,the protection chamber of main cable.The results of this paper have guiding significance to the measuring point arrangement of health monitoring in operation period and the analysis of measured data of tunnel anchor.