In order to solve the engineering problems such as the serious wear of the cutter head,the cutter head jammed,the surface collapse and the muck gushing for the large-diameter earth pressure shield under the conditions of large-particle water-rich pebble-boulder soil stratum,combined with the construction situation of the shield tunneling project between Yongfeng Station and Puyang Station in Dusi Mountain Rail Transit Project DSZQ-1,the research is carried out from the aspects of shield selection and design,advanced geological early warning treatment,tunneling parameter selection,muck improvement and screw anti-surge.The key technology of large-diameter earth pressure shield tunneling in Dujiangyan Area with large-particle water-rich pebbles and boulder soil stratum is summarized,which provides a reference basis for the construction of subsequent construction in such stratum.
NETL
NSTL
万方数据
维普
