椽帮堰在西部黄土地区长输管道水工保护中的应用  

Application of Rafter Weir in Hydraulic Protection of Long-distance Transportation Pipeline in Western Loess Area

作　　者：刘聪 陈玉新 LIU Cong;CHEN Yuxin(Pipeline Department of Daqing Oilfield Engineering Co.,Ltd.;Fire Company of Daqing Oilfield Co.,Ltd.)

机构地区：[1]大庆油田工程有限公司管道所,163712 [2]大庆油田有限责任公司消防支队

出　　处：《油气田地面工程》2020年第5期53-57,共5页Oil-Gas Field Surface Engineering

摘　　要：管道在黄土区敷设期间经过大量的黄土地坎及梯田,造成了大量的水土流失,为保证黄土地坎、梯田的稳定性,需选取合适的水工保护形式。椽帮堰是一种使用素土作为材料,根据现场地坎、田坎的高度和坡度强夯而成的水工保护形式,其具有坚固耐用、生态环保、工程造价低等优点,在黄土高原水土保持工程建设中广泛应用。参照重力式挡土墙的设计方法,对椽帮堰的稳定性进行核算,通过理论计算及现场试验成果,选取合适的结构形式。采用椽帮堰对黄土地区管道穿越的地坎、梯田田坎进行恢复,配合土工防渗截水墙的使用,保证了边坡和管沟的稳定性,现场应用效果较好。Pipelines laying in the loess area pass through a large number of loess scarps and terraces,resulting in a large number of soil erosion. In order to ensure the stability of loess scarps and terraces,it is necessary to select appropriate forms of hydraulic protection. Rafter weir is a type of hydraulic protection measurement which is made of plain soil, and is made by dynamic compaction according to the height and slope of the site sill and ridge. It is widely used in soil and water conservation projects on the loess plateau because of its advantages of durability,ecological protection and low engineering cost. Using the method of rafter weir for reference, the rafter weir is utilized to restore the ground when the pipeline passes through the loess areas and terraced fields. According to the design method of gravity retaining wall, the stability of rafter weir is calculated. Through theoretical calculation and field test results,the appropriate structure is selected. Rafter weir is used for the restoration when pipeline the pipeline passes through loess scarps and terraces in combination with the anti-seepage cut-off wall to ensure the stability of the slope and the pipe trench. The field application effect is good.

关 键 词：黄土地区 长输管道 水工保护 椽帮堰 土工防渗截水墙 

分 类 号：TE973[石油与天然气工程—石油机械设备]