高铁深路堑段农田水利系统复旧的创新与应用
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摘要
高速铁路深路堑段(大挖方区段)对农田水利系统的截断效果十分显著,如何经济合理的对农田水利系统进行恢复,既关系到高铁运行安全,也涉及基本农田的保护和利用。在充分调研的基础上,摒弃传统农田水利系统复旧技术方案,建设性地提出利用现有桥涵通道,沿山坡地形铺设承压式钢管,即采用管道式倒虹吸方式,通过现有桥涵通道沟通深路堑两侧的农田水利系统复旧方案,解决传统的泵方式复旧和竖井式倒虹吸存在的弊端和潜在的安全隐患,减少新增工程数量,节省工期。经过2年的试运行,有效解决了泥沙淤积、管道积水排放和冻裂等问题,经济效益显著,为类似工程提供了一种全新的解决方案和运行参考。
Based on abundant research,the paper proposes a constructive solution instead of traditional one,that is laying pressure-bearing steel tube along the mountain slope by utilizing existing bridges and culverts,namely,adopting tubular inverted siphon method to communicate the irrigation and water conservancy system beside the deep cutting section through existing bridges and culverts,which resolves the shortcoming and potential risk of traditional pump method and silo inverted siphon,reduces the quantity of new engineering and shortens the construction period.After two-year trial operation,it effectively solves the problems such as sediment accumulation,drainage of pipeline water and frost crack with remarkable economic benefit,providing a new solution and operation reference for similar engineering.
Based on abundant research,the paper proposes a constructive solution instead of traditional one,that is laying pressure-bearing steel tube along the mountain slope by utilizing existing bridges and culverts,namely,adopting tubular inverted siphon method to communicate the irrigation and water conservancy system beside the deep cutting section through existing bridges and culverts,which resolves the shortcoming and potential risk of traditional pump method and silo inverted siphon,reduces the quantity of new engineering and shortens the construction period.After two-year trial operation,it effectively solves the problems such as sediment accumulation,drainage of pipeline water and frost crack with remarkable economic benefit,providing a new solution and operation reference for similar engineering.
引文
[1]向明生,郭瑞,谢全敏,等.大药卷光面爆破技术在路堑边坡开挖中的应用[J].中国铁路,2016(1):73-77.
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[3]李飞,孙西欢.万家寨引水工程北干线有压倒虹吸管道充水过程研究[J].水利水电技术,2016(5):56-59.
[4]中华人民共和国水利部.灌溉与排水渠系建筑物设计规范:SL 482—2011[S].北京:中国水利水电出版社,2011.
[5]侯佩瑾,赵克梅.高压输水管道泥沙淤积的试验研究[J].山西水利科技,2002(3):35-38.
[6]张龙飞,姚贤华,岳超然,等.温度变化对大型预应力混凝土倒虹吸结构受力的影响[J].南水北调与水利科技,2013(11):196-199.
[2]白静,谢崇宝,高虹,等.东北地区灌溉管道的浅埋技术研究[J].中国农村水利水电,2016(11):135-138.
[3]李飞,孙西欢.万家寨引水工程北干线有压倒虹吸管道充水过程研究[J].水利水电技术,2016(5):56-59.
[4]中华人民共和国水利部.灌溉与排水渠系建筑物设计规范:SL 482—2011[S].北京:中国水利水电出版社,2011.
[5]侯佩瑾,赵克梅.高压输水管道泥沙淤积的试验研究[J].山西水利科技,2002(3):35-38.
[6]张龙飞,姚贤华,岳超然,等.温度变化对大型预应力混凝土倒虹吸结构受力的影响[J].南水北调与水利科技,2013(11):196-199.