上跨高速公路旧桥快速化拆除施工技术
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摘要
为了探究适用于上跨高速公路旧桥的快速化拆除施工方法,以上跨甬台温高速公路的甬台温高速复线南塘至黄华段万岙分离桥旧桥的拆除施工为例,结合高速公路保通要求,以及周边环境情况,对小节段静力切割旧桥拆除施工技术进行了研究。结果表明,采用基于专用临时支撑架的小节段静力切割旧桥拆除施工技术,可安全快速化地完成施工任务,且高速公路的交通组织只需采用半幅封闭,对交通的影响较小。可见,该技术对于此类施工具有较强的适用性,能为同类施工提供借鉴。
In order to study the rapid demolition construction method suitable for the old bridge over crossing expressway, and taking the demolition construction of old bridge of Wanao Separation Bridge over crossing Nantang-Huanghua Section of Ningbo-Taizhou-Wenzhou Expressway as an example, this paper studies the demolition construction technology of old bridge by small-segment static cutting according to the expressway maintenance requirements and surrounding environmental situation,. The result shows that the use of small-segment cutting old bridge demolition construction technology based on the special temporary support frame can safely and rapidly complete the construction, and the traffic organization of expressway needs to use half to close only and has less impact on traffic. Therefore, this technology has the stronger applicability for this kind of construction and can be referred for the similar constructions.
In order to study the rapid demolition construction method suitable for the old bridge over crossing expressway, and taking the demolition construction of old bridge of Wanao Separation Bridge over crossing Nantang-Huanghua Section of Ningbo-Taizhou-Wenzhou Expressway as an example, this paper studies the demolition construction technology of old bridge by small-segment static cutting according to the expressway maintenance requirements and surrounding environmental situation,. The result shows that the use of small-segment cutting old bridge demolition construction technology based on the special temporary support frame can safely and rapidly complete the construction, and the traffic organization of expressway needs to use half to close only and has less impact on traffic. Therefore, this technology has the stronger applicability for this kind of construction and can be referred for the similar constructions.
引文
[1]杨梓,徐文平.旧桥拆除方法要览和案例简介[J].特种结构,2010,27(6):88-90.
[2] CJJ 248—2016,城市梁桥拆除工程安全技术规范[S].
[3]蒋洪涛.混凝土箱梁桥拆除施工技术研究[D].重庆:重庆交通大学,2011.
[4]杨学祥.老红星桥拆除施工[J].世界桥梁,2010,(01):59-62.
[5]占辉.大流量交通状态下的高速公路改扩建交通组织研究[D],广州:华南理工大学,2012.
[6]曹美俊.跨既有高速公路预应力钢筋混凝土桥梁拆除施工技术[J],中华建设,2008,(12):58-59.
[7]赵东海.跨高速公路连续梁旧桥拆除施工技术[J],铁道建筑技术,2014,(S1):77-78,81.
[8]王显张,杨东海,段跃华,梁军林.改扩建工程斜腿刚构跨线桥拆除施工技术探讨[J],西部交通科技,2018,(06):118-121.
[9]王国俊.沈山高速公路改扩建工程保通状态下跨线桥拆除关键技术研究[J],北方交通,2013,(3):61-64.
[10]中交第二航务工程局有限公司.一种用于跨高速公路旧桥拆除快速安装可调支架[Z].2017.
[2] CJJ 248—2016,城市梁桥拆除工程安全技术规范[S].
[3]蒋洪涛.混凝土箱梁桥拆除施工技术研究[D].重庆:重庆交通大学,2011.
[4]杨学祥.老红星桥拆除施工[J].世界桥梁,2010,(01):59-62.
[5]占辉.大流量交通状态下的高速公路改扩建交通组织研究[D],广州:华南理工大学,2012.
[6]曹美俊.跨既有高速公路预应力钢筋混凝土桥梁拆除施工技术[J],中华建设,2008,(12):58-59.
[7]赵东海.跨高速公路连续梁旧桥拆除施工技术[J],铁道建筑技术,2014,(S1):77-78,81.
[8]王显张,杨东海,段跃华,梁军林.改扩建工程斜腿刚构跨线桥拆除施工技术探讨[J],西部交通科技,2018,(06):118-121.
[9]王国俊.沈山高速公路改扩建工程保通状态下跨线桥拆除关键技术研究[J],北方交通,2013,(3):61-64.
[10]中交第二航务工程局有限公司.一种用于跨高速公路旧桥拆除快速安装可调支架[Z].2017.