运营地铁道岔转辙机基坑浸水冒泥的治理

Treatment for Mud around Foundation Pit of Switch Machine for Operating Subway

地铁道床道岔转辙机基坑通常处于道床轨侧,通过坑内的转辙调节钢轨,使列车变轨安全行驶。转辙机基坑出现浸水、积水,会严重影响转辙机的安全使用,直接影响列车的变道安全行车。由于受列车日常行驶振动影响,基坑底部积水、冒泥采用常规的处理方法难以收到理想效果。本文简述了采用水泥-EAA高渗透亲水性环氧材料复合注浆方法,确保列车正常运行下的治理效果。

Foundation pit of subway tunnel switch machine is usually on the side of the road, by adjusting the rail in the pit to make the train change safely. The occurrence of water in the foundation pit of switch machine will seriously affect the safe use of switch machine and train lane change safety driving. Due to the daily vibration of the train, it is difficult to get the ideal resuh from the water accumulation in the foundation pit and the conventional treatment method. This article briefly describes the effect of compound grouting method of cement-EAA high permeability hydrophilic epoxy material to ensure the normal operation of the train.