Reference List for Tunnel Construction - NORDSEETAUCHER GmbH

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NORDSEETAUCHER GmbH 北海潜水员公司 Hyperbaric Tunnel Construction and Diving ® ® 高压隧道作业与潜水 Beijing Railway Tunnel ZJX – 2 Project 北京直径线项目 Nordseetaucher GmbH, Bramkampweg 9, D-22949 Ammersbek, Germany; Tel. +49 4102 23180, Fax +49 4102 231820, Mobile +49 172 4300598 E-mail: info@nordseetaucher.de; Internet: www.nordseetaucher.de
NORDSEETAUCHER GmbH 北海潜水员公司 Hyperbaric Tunnel Construction and Diving ® ® 高压隧道作业与潜水 Project: S-636 Metro Hangzhou 杭州地铁 S-636 项目 Change of the Main Gear Seals at 2.1 bar Overpressure. 2.1bar 带压更换主轴承密封 All 4 seals of the main bearing of a TBM were worldwide changed in overpressure in June 2012 for the first time. The unusual feature of this repair primarily consisted that the seals had to be changed, not like in the manufactory in a horizontal layer, in a vertical layer. 在 2012 年 6 月 , 盾构机主轴承密封四道密封第一次在带压情况下进行了更换。此次更换密封工作的特殊性尤其体现在密封的安装是在轴承处于竖直方向 , 而非正常工厂的平方情况。 To make the dismantling and assembly work easier some grits were mounted in the excavation chamber, so that each place of the main bearing was attainable without problems. The dismantling of the faulty seals and the Chamber Rings was carried out by means of pulling-off devices made especially for it. 为使拆装及安装工作更加方便 , 我们在开挖仓内安装了一些平台 , 确保能够全方面、无障碍接近主轴承。通过特制的拖拉工具 , 将已损坏的密封及密封隔圈环拆除。 Before the opening of the main bearing it was needed to clean the cutterhead and excavation chamber and suck out all material to make sure that no pollutions be able to hinder the seal replacement. 在打开主轴承之前 , 为取得理想的更换密封环境 , 我们对开挖仓、刀盘进行了彻底清洁。 All chamber rings and the seal housing were cleaned from any dirt and grease with high pressure water and cold-cleaner. 所有密封隔圈环和密封腔都用高压水和除油剂进行清洁。 The new seals were volcanized with a special bonding device of Nordseetaucher. To ensure a one hundred per cent connection, the device has been heated up to approximately 70 - 80 ° degrees Celsius for three hours. 新密封通过北海公司的特殊装置进行了硫化。为保证密封已被彻底黏合 , 密封连接处通过特殊装置在 70-80° 间加热了 3 个小时。 The correct situation of the single seals and chamber rings were measured before and after the mounting. The measurements record was made according the design plans, delivered by Herrenknecht AG. 每道密封和密封隔圈环都在安装后 , 按照海瑞克提供的安装精度要求 , 进行测量 , 确保安装精度。 Nordseetaucher GmbH, Bramkampweg 9, D-22949 Ammersbek, Germany; Tel. +49 4102 23180, Fax +49 4102 231820, Mobile +49 172 4300598 E-mail: info@nordseetaucher.de; Internet: www.nordseetaucher.de
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Reference List for Tunnel Construction - NORDSEETAUCHER GmbH

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