摘要
针对运营隧道出现衬砌空洞、开裂、掉块等质量病害原因,并结合现场衬砌台车灌注混凝土的实际情况,文章阐述了对传统隧道衬砌台车实施的改造,提出了二次衬砌带模注浆新工艺。通过预埋RPC注浆管并注入高流动性微膨胀早强缓凝充填砂浆,有效解决了传统二次衬砌空洞缺陷整治难的问题,极大地提高了隧道衬砌工程质量,为今后隧道的安全运营提供了可靠保证。
In order to address quality detects of lining voids, cracking or spalling that occur in operating tunnels, and based on the practices of casting concrete by lining jumbos on site, a conventional tunnel lining jumbo is renovated and new technology is proposed for grouting of the seeondary lining with molds. The stubborn void defects existing in conventional secondatT linings are solved by injecting the micro-expansion retarded morlar, characterized by good workability and early-strengthening, through an embedded RPC pipe, which improves the quality of the tunnel lining and provides a solid support for safe tunnel operation in the future.
出处
《现代隧道技术》
EI
CSCD
北大核心
2016年第4期185-188,194,共5页
Modern Tunnelling Technology
关键词
铁路隧道
衬砌台车
改造
带模注浆
预埋RPC注浆管
Railway tunnel
Lining jumbo
Modification
Grouting through mold
Embedded RPC pipe
