[VI-810] Environment-friendly shield machine tail part water stopping material Development of "tail keeper"
Keywords:Shield machine, tail seal, waterproof material, environmental consideration.
Although oil-based grease is generally used as the material filled in the tail seal in the shield construction method, there is a risk of ignition, deterioration of quality due to the escape of oil, and the fall accident from splashing of oil. We solved the problems such as, and developed effective materials for construction under unique environmental conditions such as water quality.
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