注浆堵漏技术在地铁隧道渗漏处理中的应用
2018-06-06周玉良
周玉良
摘 要:地铁是解决现代都市交通拥堵的重要渠道之一,通过建设地铁能够在城市地下构建快速、高效的公共交通网络从而能够极大的缓解城市人员众多所带来的交通拥堵。近些年来我国加强了对于城市地铁建设的投入,各主要城市都积极开始了地铁建设的布局,地铁建设与运营已经进入了高速发展期。在地铁施工与运营的过程中渗漏是长期困扰地铁的一道难题,渗漏会对地铁的施工质量产生极为严重的影响,注浆堵漏技术是一项解决地铁渗漏的一项有效的技术,文章在分析地铁渗漏原因的基础上对如何做好注浆堵漏技术的应用进行了分析阐述。
关键词:地铁;注浆堵漏技术;应用
中图分类号:U455 文献标志码:A 文章編号:2095-2945(2018)15-0183-02
Abstract: Subway is one of the important channels to solve the question of modern urban traffic congestion. Subway can build a fast and efficient public transport network in the underground of the city so as to greatly alleviate the traffic congestion caused by the large number of people in the city. In recent years, China has strengthened the investment in urban subway construction, and the major cities have actively started the layout of subway construction, subway construction and operation has entered a period of high-speed development. In the process of subway construction and operation, leakage is a difficult problem which has been puzzling the subway for a long time. The leakage will have a very serious impact on the construction quality of the subway. Grouting leakage plugging technology is an effective technology to solve the subway leakage. On the basis of analyzing the causes of subway leakage, this paper analyzes and expounds how to deal with the application of grouting plugging technology.
Keywords: subway; grouting technology; application
前言
注浆堵漏技术在地铁施工及运营过程中有着极为广泛的应用,受地铁沿线周边地质及环境因素的影响使得渗水问题长期困扰着地铁施工与地铁运营的安全性,为解决地铁渗漏问题通过采用注浆堵漏技术对地铁隧道进行封堵加固用以有效的解决渗水问题。避免地铁隧道渗漏对地铁施工及地铁运营的安全性产生进一步的影响。
1 某地铁隧道工程渗漏情况分析
某地铁区间隧道采用浅埋暗挖技术进行施工,全长约1409.5m,区间隧道采用单线单洞断面构造,地铁隧道所采衬彻为复合式衬彻,在内外层衬彻之间加铺了防水层用以加固防渗效果,地铁隧道的内衬彻采用的是钢混构造,外衬则由注浆加固的地层、网喷支护与钢拱架等所构成。……
