唐家山堰塞湖溃坝条件下兰成渝输油管道安全性评价与对策  

The Safety Evaluation and Countermeasures to the Oil Pipe Line from Lanzhou to Chongqing under the Dam-break of Tangjiashan Barrier Lake

作　　者：潘华利[1,2,3] 欧国强[1,2] 吕娟[1,2] 胡平华[1,2] 

机构地区：[1]中国科学院水利部成都山地灾害与环境研究所,四川成都610041 [2]中国科学院山地灾害与地表过程重点实验室,四川成都610041 [3]中国科学院研究生院,北京100049

出　　处：《四川大学学报（工程科学版）》2009年第3期78-83,共6页Journal of Sichuan University (Engineering Science Edition)

基　　金：国家科技支撑计划项目(2006BAB04A08);国家重点基础研究发展计划(973计划)项目(NO.2003CB415202)

摘　　要：兰成渝输油管道是我国惟一通向西南地区的成品油管道,供应川渝地区70%以上的成品油,是国家西部大开发的重要动脉,其安全运营十分重要。"5.12"汶川大地震在四川省绵阳市北川县城上游的唐家山形成规模巨大的堰塞湖,为了确保唐家山堰塞湖泄洪排险过程中输油管道的安全,对堰塞湖可能出现的三种溃坝方案中输油管道涪江穿越断面的冲刷深度进行了计算。计算结果表明,如果发生三分之二溃坝,涪江穿越断面主槽冲刷深度为6 m,边滩冲刷深度为4 m;如果发生全溃坝,则分别为8 m和6 m。并对其安全性进行了评价,提出了相应的应急处理措施,确保了兰成渝输油管道安全渡过唐家山泄洪。The oil-pipe from Lanzhou to Chongqing is the only pipe that transports product oil to the Western areas.The earthquake of May 12 in Wenchuan triggered a great many of slides and landslides to shape lots of large scale barrier lakes.The Tangjiashan Barrier Lake,located in the upper stream of Beichuan county,Mianyang of Sichuan province,is one of the largest barrier lakes.To ensure the safety of the oil-pipe during the sluice of Tangjiashan Barrier Lake,the erosion depth of the Fu river cross section was calculated under the three possible dam-break types.Based on the results,the erosion depth of groove is 6m and of beach is 4 m under the 2/3 dam-break,while it＇s 8 m and 6m separately under the whole dam-break.Based on tne safety estimation,the corresponding lash-up measures were brought forward to guarantee the safety of the pipe during the rapid flood of Tangjiashan Barrier Lake.

关 键 词：兰成渝输油管道 唐家山堰塞湖 冲刷 安全评价 

分 类 号：TV147[水利工程—水力学及河流动力学]