护砌管沟法在高水位流砂地段的应用
Application of Ditch Slope Pitching Method in Area with High Underground Water Table and Quicksand
浏览(2183) 下载(2)
- DOI:
- 作者:
- 张强, 牟宗元, 于颖
ZHANG Qiang
- 作者单位:
- 辽河油田油建二公司,辽宁盘锦 124010
Liaohe Oilfield Construction No.2 Company, Panjin 124010, China
- 关键词:
- 高水位地段;砂砾层;管道敷设;管沟护砌
area with high underground water table;grit layer;pipeline laying;ditch slope pitching
- 摘要:
- 福建LNG管道工程途经的泉港区涂岭镇汶阳村段,属于海冲击平原,地表0.1 m以下为砂砾,遇水液化,无法成沟,而且LNG管道与-条沿河堤的自来水管道平行敷设,间距仅2 m,LNG管道施工时必须保证自来水管道的安全。文章以该段工程为例,介绍了在高水位流砂地段敷设管道时,采用小型轮式机械开挖管沟和用编织袋装砂砾石护砌的施工方法,不但成功解决了管沟成型和近距离自来水管道保护两个施工难题,而且方案操作简易可行、安全可靠。
The pipeline section in Wenyang village of Fujian LNG Pipeline Project is located in marinealluvial plain where there is a grit layer at the depth over 0.1 m and it is easy to liquefy and is difficult to make a ditch. Furthermore, the LNG pipeline is laid in parallel with a tap-water pipeline that goes along ariverbank; the distance between the two pipelines is only 2 m. The construction of the LNG pipeline must en-sure the safety of the tap-water pipeline. Taking the pipeline section project as an example, this paper illus-trates the construction method in area with high underground water table and quicksand, i.e. trenching withsmall-size wheel-type machine and building ditch slope pitching with woven fabric bags filled with grit. Thismethod solves successfully the difficulties of pipe ditch forming and nearby tap-water pipeline protection, andit is easy, safe and reliable to operate.2009,5(5): 24-25 收稿日期：2008-12-22分类号：U175作者简介：张强(1973-) 男，四川达州人，工程师，1998年毕业于西南石油学院油气储运专业，-直从事长输管道、油田地面工程安装技术及管理工作。参考文献：
GB50369-2006.油气长输管道工程施工及验收规范[S].2006