依据北京某地铁暗挖隧道段对粉细砂地层的现场注浆试验结果,采用改性水玻璃及TGRM超细水泥浆液,利用水平袖阀管后退式注浆的施工方法对饱和粉细砂层进行了注浆,粉细砂土体的强度和稳定性都得到提高,起到了很好的堵水、加固效果。该注浆技术对其他类似工程具有一定的参考价值。 According to the on-site grouting test result of the subsoil tunnel in a certain subway in Beijing, the modified water glass and TGRM superfine cement slurry were used, and the construction method of the horizontal sleeve valve tube retracting grouting was adopted to measure the saturated fine sand layer For grouting, the strength and stability of the fine sand soil have been improved, played a very good water blocking and reinforcing effect. The grouting technology for other similar projects have a certain reference value.