RESEARCH ON TREATMENT OF THE TRACK BED SETTLEMENT OF SUBWAY TUNNELS
Under soft soil condition,the construction of new projects near the subway often causes tunnel displace-ment in the track bed settlement,and changes in the track bed shape,which affects driving safety.A subway project is taken to study that tunnel damage of bed structure.The method of thin pier with in-situ pouring is selected by mul-tiple schemes comprising.The engineering quantity of tunnel treatment is reduced by theoretical calculation and the spacing adjusting of temporary support.With the effect of ensuring safety and uninterrupted operation,the tun-nel damage of bed structure caused by tunnel settlement has also been quickly and thoroughly completed.The re-sults may provide the reference for similar cases.