Rubber cord_rubber seals for subway tunnel doors
In order to ensure that the center of the rubber cord plate coincides with the design center of the shield tunnel, before the rubber cord plate is installed, the surveyor first measures the position of the shield opening on the end wall, and then welds the corbel on the end wall according to the control line. A total of 8 corrugated legs are welded on each ring, 4 on the upper and lower half rings, all welded to the lower part of the steel ring. After the welding is completed, the steel ring is lifted to the design position by a crane. First install the lower half ring, after fine-tuning the lower half ring to the design position, weld the steel ring to the positioning corbel, then install the upper half ring, after installing the upper half ring to the design position, weld the upper and lower half rings by welding , The joints are fully welded on both sides.
After the installation and support of the subway tunnel rubber seal ring template is completed, carry out measurement and inspection to ensure that the inner diameter of the tunnel ring beam is round and the end face is flush. If it does not meet the requirements, it is adjusted immediately and the joint is tight. The subway tunnel rubber curtain plate Individual holes are welded with steel plates for plugging. The end formwork is provided with shock ramming windows at the bottom and both waists, and a movable steel plate cover is set, which can be closed immediately after the shock ramming is completed, and a pouring window and a concrete discharge trough are reserved at the top. After the concrete is poured, check again to confirm that the formwork size meets the requirements. yfkj01
The rubber sealing ring of subway tunnel door includes rubber sheet of curtain fabric, ring plate, fan-shaped replica and corresponding connecting bolts and washers. The equipment order is rubber sheet of curtain fabric, round panel and fan-shaped replica. After the equipment is completed, the circular plate forces the cord rubber plate to adhere to the hole through the connecting bolts. During the process of the shield driving, the cord rubber plate follows the outer wall of the shield to form a water seal.
After the rubber curtain board has the installation conditions, choose two slings of the same length, four buckles, and fasten them to the four lifting lugs of the processed ladder. Install the rubber cord from the beginning of the upper bolt hole, and use 27 * 112 bolts. At the top of the list, the two rubber curtains are installed with the bolts facing the foundation pit to facilitate bolt fastening.
After the installation of the rubber cord, in order to prevent the waste residue from falling through the door and falling on the rubber plate to affect the sealing effect, the old bamboo rubber plate is laid on the bottom of the sealing ring to maintain the rubber cord. Organize a special person to perform secondary tightening on the bolts.
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13785855258 Manager
Roofing Sheet For Building,Galvanized Guardrail Round Post,Highway Guardrail Round Post
Shandong Hengfeng Group , https://www.luhengfeng.com