Research Article

Displacement Characteristics of an Urban Tunnel in Silty Soil by the Shallow Tunnelling Method

Table 1

The support system of urban shallow tunnels in silty soil in recent years in China.

ItemTunnel nameStrata reinforcementAdvanced support

Guangzhou metro line 2Xiaogang-Jiangnanxi tunnelAdvanced small pipes and tunnel face grouting
Nanjing metroZhujiang Road station∼Gulou stationAdvanced large pipe-sheds, advanced small pipes and tunnel face grouting
Shanghai metro line 2Weining station #3 passagewayAdvanced large pipe-sheds, deep hole grouting in tunnel face
GuangzhouJinshazhou tunnelCement mixing pilesAdvanced large pipe-sheds
Guangzhou metro line 4Nanyan sectionCement mixing pilesSynchronous grouting
Hangzhou metro line 4Zizhi tunnelJet grouting pilesAdvanced small pipes and tunnel face grouting