大型河流穿越施工技术综述
A Summary of Construction Technology on Big River Crossing of Long Transmission Pipeline
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- DOI:
- 作者:
- 陈国彬
Chen Guobin
- 作者单位:
- 石油部管道局
- 关键词:
- 摘要:
- 本文结合我国近年完成的-些长输管道大型河流穿越工程中遇到的施工技术问题,从管体结构、水下管沟开挖、穿越管段就位、河床下管道穿越等方面展开论述,详细介绍了国内外大型河流穿越施工方法并予以对比。1972年美国首次成功地在穿越施工中应用了定向钻穿越技术,我国使用从美国里丁贝茨公司引进的大型定向钻机于1986年在濮阳完成黄河穿越施工,管道出土点的纵、横向误差均小于允许误差的1％。这项技术的优点突出,值得大力推广。
Combined with the technical problems encountered in big river crossing of long transmission pipeline in recent years, the pipeline structure, under water trenching. crossed pipeline lowering in, pipeline crossing under river bedetc. are discussed and the construction methods about big river crossing, do mestic and foveign, also are introduced comprehensively in this article. The vertical and horizontal tolerance at the point of the pipeline coming up out of earth was less than 1% of allowable tolerance. For its outstanding advantages, such technology is worthy of being spread.1988,1(1): 3-9 收稿日期：1987-5-21