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结合北京地铁4号线成府路车站联络通道工程特点,为了提高土体整体稳定性和承载力,保证地铁结构安全,分析了粉土地层的性状,采用水泥-水玻璃双液浆,并据土质情况确定浆液配比与注浆压力,对土体进行劈裂注浆加固,取得了良好效果。
In order to improve the overall stability and bearing capacity of the soil mass and ensure the safety of the metro structure, the characteristics of the silt strata are analyzed. The cement-water glass double-liquid slurry is adopted, and according to the engineering features of the communication channel of the station of Chengfu Road in Beijing Metro Line 4, Soil conditions to determine the slurry ratio and grouting pressure on the soil split grouting reinforcement and achieved good results.