摘要
煤矿采掘空化区塌陷会引发其地表产生位移变化,可能会造成煤矿上方途径的管道产生应力集中,导致管道失效进而发生断裂事故。以某DN400管道通过采掘空化区上方为例,从应力计算、应力分析、处理措施、处理施工工艺等方面进行研究,论述加强采掘空化区地基稳定性的措施,使得处理后的煤矿采掘空化区地面适宜管道工程维运,保证管道安全运营,最大限度节约利用土地。
Collapse of cavitation zone in coal mine would lead to formation displacement and cause stress concentration of pipeline that goes above it.More seriously,it would result in pipeline cracking.This paper discusses a solution to reinforce foundation of cavitation zone in coal mine by stress calculation and analysis,and studying construction processes and measures taking a certain DN400 pipeline laid above coal mine cavitation zone as an example.The solution would enhance pipeline and coal mine safety,reduce land use,and benefit operations in such area.
作者
李佳琳
Li Jialin(CNOOC Petrochemical Engineering Co.,Ltd.,Qingdao 266101)
出处
《石化技术》
CAS
2020年第2期3-5,185,共4页
Petrochemical Industry Technology
关键词
天然气
管道
采掘空化区
注浆
处理
natural gas
pipeline
cavitation zone
slip casting
process management
