What should be paid attention to in the design and construction of fiberglass reinforcement enclosure structures? Do you have a clear understanding of these issues? Below, the editor will introduce them to you.
① Fiberglass reinforcement and steel reinforcement are connected by binding, and sufficient overlap length must be ensured according to relevant specifications to ensure engineering safety.
② This construction method needs to be applied together with the extension of the tunnel gate according to the main body of the shield tunnel during the start of the shield tunnel, and the effect is obvious.
③ When the shield tunneling machine is equipped with a soft soil cutterhead mainly composed of scrapers, it is not advisable to use cutting tools to directly cut the enclosure structure.
④ When using slurry shield tunneling to directly cut glass fiber reinforcement, it is necessary to timely and regularly reverse cycle and flush the slurry pump to prevent the debris of the excavated glass fiber reinforcement from floating above the slurry and gathering at the outlet of the slurry pump to block the slurry pump.
⑤ During the excavation process, it is necessary to control the excavation parameters such as cutter head speed, cutter head torque, and tool penetration to ensure tool safety.