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京张高铁官厅水库特大桥主体年底完工 全长9千米

2017-07-08 04:51:55   新京报

(原标题:京张高铁官厅水库特大桥主体年底完工)

新京报讯昨日,新京报记者到张家口采访时获悉,作为未来连接北京和张家口铁路干线——京张高铁的一项重大工程,铁路跨水库特大桥预计将在年底建成主体结构。届时,由八个造型优美的曲弦桁梁组成的官厅水库特大桥将如一道长虹跨越官厅水库,增添一道亮丽的风景。

此外,随着京津冀协同发展的持续推进,以及京张两地共同筹办2022年冬奥会相关工作的推进,北京、天津、张家口的合作也步入“蜜月期”,三地在环保、医疗、教育、旅游等领域广泛开展合作,目前已签订37项合作协议,总投资达到了309亿元。


昨日,京张高铁跨官厅水库特大桥施工现场。 新京报记者 吴为 摄


京张高铁跨官厅水库特大桥效果图。大桥工程部门供图

9公里铁路桥由8个曲弦桁梁组成

京张高铁于2016年4月正式开工建设。按照计划,将于2019年年底建成通车。按照设计路线,高铁线路将跨越官厅水库,建设的铁路桥西侧约70米即为现有的京藏高速公路官厅水库特大桥,铁路桥与高速公路桥基本并行。

铁路桥距水库大坝约16.7千米,全桥长9077.89米。官厅水库特大桥由八个造型优美的曲弦桁梁组成,建成后就如一道长虹跨越宽阔平静的官厅水库。预计今年11月份可将8孔钢梁顶推到位,完成主体结构,目前已有3孔顶推到位。

该工程五标一工区工程部部长陶正国介绍,为保护官厅水库水资源,主桥施工采用顶推法进行,以减少水上作业,有效避免了对官厅水库区产生污染,计划以平均每个月一孔的速度来进行顶推施工。

“官厅水库是水资源保护区,也是北京重要的水源地之一。我们为了减少在水面上的施工,钢梁都是在岸上像搭积木一样拼装好,然后用绳子拉到湖中央。这样就防止了施工物品掉落到湖里,影响水库的水质。”陶正国说。

万龙滑雪场二期工程将于2019投产

京张两地在冰雪运动、休闲旅游等方面的合作也日趋密集。由北京市相关企业投资建设万龙滑雪场二期工程今年将修建6条雪道和一条高速缆车,预计将于2019年11月全部投产使用。

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