Starting Technology of Shield Tunneling Machines in Small and Deep Shaft of Shield Tunnel
The length of the shield tunneling machine is generally greater than the length of the shaft of shield tunnel,so the shield tunneling machine equipment is installed underground in steps.The separate starting of the shield tunneling machine requires the installation of a long transfer pipeline.The pressure loss caused by long-distance pipeline transfer affects the smooth departure of the shield machine.Taking the hydraulic driven Slurry shield machine as an example,the starting technology of the shield tunneling machines in small and deep shaft of Shield tunnel is analyzed,and the pressure loss of the hydraulic system pipeline when the shield machine is transferred over long distances and deep-buried working conditions is pointed out.The starting technical measures for multiple transfers of the shield machine when the starting shaft is small are introduced.
starting of shield tunneling machinepipeline pressures losspressure loss in the routepipeline conversion connection
NETL
NSTL
万方数据
