黄土高原长输管道生态型水工保护技术

Ecotype Hydraulic Protection Technique for Long Transmission Pipeline in Loess Plateau

黄土高原地区沟壑纵横、梁峁连绵、植被稀少、降水入渗率低,在暴雨的作用下容易形成山洪,严重威胁长输管道的建设和安全运行,使得水工保护成为管道建设的重要组成部分。在西气东输管道建设中,对生态型水工保护方法做了大量的试验研究工作,取得了可喜的成果。文章阐述了生态型水工保护的原则,从缓坡、陡坡、沟头、冲沟、汇水塬、护坡、崾岘的处理等方面,介绍了生态型水工保护技术。实践证明,该项技术不仅有效保证了长输管道的安全运行,而且有效地保护和改善了当地的生态环境。

There are plenty of crisscross gullies,ravines,mountain ridges and tablelands in loess plateau.The elevation difference is big.The water and soil loss is serious and threats the pipeline con-struction and operation safety.So the hydraulic protection plays an important role in pipeline construc-tion.A lot of research work on ecotype hydraulic protection have been done in West To East Gas Pipeline construction and many valuable results have been achieved.This paper describes the principles of ecotype hydraulic protection and related treatment techniques for gentle slope,steep slope,gully head,scouring gully,water catchment area and revetment.It has been proved by practical engineering that these techniques not only ensure the safe operation of long distance pipeline,but also protects and improves local ecological environment.