摘要
针对城市老旧管道的全结构更新问题,提出机械化非开挖的管道原位破除更新的新工法(PBR工法)。基于管道原位破除更新工法的基本原理,研制了专用配套设备,通过现场试验分析了PBR工法及新设备的适用性。结果表明:PBR工法及新设备能够有效解决管道更新难题,对旧管道原位破除的同时,采用顶进的方式更换新管道,形成了集管道淤渣清理、原位扩容更新、保通不截流功能于一体的集成化掘进机系统;掘进过程中,刀盘推力为750~1 050 kN,扭矩为7~22 kN·m,推力及扭矩波动较小,掘进过程较为稳定。管道破除更新工法及专用设备的成功研发,为市政老旧破损管道的非开挖更新提供了新的解决方案。
In order to solve the problem of renewing the whole structure of the old pipeline,this paper proposes a new construction method for mechanized non-excavation pipelines in-situ break-and-replace method(PBR construction method).Based on the basic principles of the PBR construction method,this paper has developed supporting special equipment,and analyzed the applicability of the PBR construction method and the new equipment through field tests.The results show that:The PBR construction method and new equipment can effectively solve the problem of pipeline renewal.While the old pipeline can be destroyed in situ,the new pipeline can be replaced by jacking,forming a collection of pipeline sludge cleaning,in-situ expansion and renewal,and protection and non-closure functions in one integrated roadheader system.During the tunneling process,the cutter head thrust is 750~1050 kN,the torque is 7~22 kN·m,the thrust and torque fluctuations are small,and the tunneling process is relatively stable.The successful development of the PBR method and its special equipment provides a new solution for the trenchless renewal of the old and damaged municipal pipelines.
作者
苏明浩
李洋
甘雨
Su Minghao;Li Yang;Gan Yu(Underground Space Research and Design Institute,China Railway Engineering Equipment Group Co.,Ltd.,Zhengzhou 450016,P.R.China)
出处
《地下空间与工程学报》
CSCD
北大核心
2022年第S02期767-771,共5页
Chinese Journal of Underground Space and Engineering
基金
中铁工程装备研合(2020-07)
关键词
非开挖
管道更新
扩容更新
机械化
原位破除
trenchless
pipe replacement
pipe expansion
mechanization
in-situ break
作者简介
苏明浩(1989—),男,河南郑州人,硕士,工程师,主要从事隧道及地下工程科研和设计方面的工作。E-mail:43960626@qq.com
