884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

魏  洋^1,2，吳  剛²，吳智深²，蔣劍彪³，張  敏³
(1 南京林業(yè)大學(xué)土木工程學(xué)院，南京210037; 2 東南大學(xué)城市工程科學(xué)國(guó)際研究中心，南京210096; 3 北京特希達(dá)技術(shù)研發(fā)有限公司，北京100011)

[摘要] 總結(jié)了若干最新日本水下橋墩結(jié)構(gòu)加固技術(shù)，包括新型沉箱干作業(yè)法加固水下結(jié)構(gòu)技術(shù)、壓入鋼管加固技術(shù)、預(yù)制混凝土面板快速橋墩加固法，給出了幾種加崮技術(shù)的基本原理與施工工藝，同時(shí)對(duì)各技術(shù)的工藝特點(diǎn)進(jìn)行了系統(tǒng)地分析，指出在橋梁水下結(jié)構(gòu)加固方案選擇時(shí)，應(yīng)充分考慮各加固技術(shù)特點(diǎn)。
[關(guān)鍵詞] 橋梁；橋墩；水下；結(jié)構(gòu)；加固

Severalinnovative strengthening technologies for underwater piers
Wei Yang^1,2, Wu Gang², Wu zhishen², Jiang Jianbiao³, Zhang Min³
(1College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China; 2 International Institute for Urban Systems Engineering, SEU, Nanjing 210096, China; 3 Beijing Texida Technology R&D Co.,Ltd., Beijing 100011, China)

Abstract: Some ofthe latest Japanese bridge structures strengthening technologies were summarized, including neo-dry repair method with caisson, preatressed steel pipe reinforcement technology, precast rapid intensification system. The basic principles and construction technology of several strengthening method were provided. At the same time, the technical characteristics of each technology were systematically analyzed. The reinforcement of bridge underwater structures should fully consider each retrofit technology features.
Keywords: bridge; piers; underwater; structures; strengthening