①The glass fiber reinforcement and the steel bar are connected by lashing,and a sufficient lap length must be ensured in accordance with relevant regulations to ensure engineering safety.

　　②This construction method needs to be applied together with the main body of the shield well and the extension door when the shield is launched,and the effect is obvious.

　　③When the shield machine is configured with a soft-soil cutter head with scrapers as the mainstay,it is not suitable to use the tool to directly cut the enclosure structure.

　　④When using a slurry shield to directly cut the fiberglass tendons,the slurry pump should be flushed in a timely and regular reverse cycle to prevent the excavated fiberglass tendon debris from floating on the mud and gathering at the slurry pump port to block the slurry pump.

　　⑤During the tunneling process,it is necessary to control the tunneling parameters:cutter head speed,cutter head torque,tool penetration,etc.to ensure tool safety.