非开挖技术在燃气施工中的应用--实际施工中顶管技术的选取

摘要

在北京这种成熟大都市进行燃气管线敷设过程中，时常出现由于已形成的其他地下管线的复杂性等多种不可预见因素的制约，造成施工过程中无法进行明开施工。因此在城市燃气管线的敷设过程中非开挖施工技术也越来越多的被应用于工程实际施工之中。本文基于我市燃气工程管线的现状，总结出顶管、夯管、定向钻拉管各自的优劣，并在实际工程当中选取案例进行分析，以便能够选择出最适合的非开挖技术施工方案。%In the gas pipeline laying process of Beijing which is a mature metropolis, due to various unforeseen factors, such as the complexity of other underground pipelines, the open construction can not be specified during construction. Therefore, in the laying process of city gas pipeline, trenchless technology is widely used to the actual construction of project. Based on the status of gas pipeline in Beijing, this paper summed up the pros and cons of pipe jacking, pipe ramming and directional drilling trombone, and analyzed the selection cases in actual project, in order to select the most suitable trenchless technology construction program.