摘要
Abstract
The traditional method to install pipelines and equipment in tunnel is by drilling with chemical anchor bolt and metal support, which is resulted in such problems as low efficiency, poor construction environment, segment structure damage, and maintenance difficulties. This paper, with reference to Lanzhou Metro Line 1 , conducts systematic research and analysis of shield segment embedded channel and justifies the reliability of the practice through force analysis of pre-buried channel under typical working conditions, field installation tests, finished product testing and laboratory tests, specifies design parameters and production process in terms of section type, material, connection, forging process and mechanical properties. It is defined that corrosion resistance is the controlling factor to ensure the reliability of the pre-buried channel. The embedded channel technology improves construction environment, increases efficiency of equipment and pipeline installation, protects tunnel structural components from being damaged and extends the engineering service life of the project, and will see extensive application in the industry.关键词
兰州地铁/预埋滑槽/管片/受力性能/耐久性Key words
Lanzhou Metro/Embedded chute/Segment/Mechanical performance/Durability分类
交通工程
