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During the period of shield driving Yanda interval tunnels of Line 2 east extension of Shenzhen metro under the existing operation tunnels of Line 1, safe production systems were set up and perfected in order to ensure the safeties of the above operation tunnels and the newly built shield tunnels. The safe production systems manly consists of technical preparation system of construction unit, examination system of construction plan, checking and maintenance system of equipment, material preparation system, zoning management system of shield driving under the operation tunnels, checking and acceptance system of executing under- crossings, in-situ on duty system and anther monitoring system ready for use. Practice shows the systems guaranteed the smooth shield driving under the operation tunnels, which can be used or referenced in similar conditions.

KEYWORDS

shield tunneling; under-crossing; operation tunnel; safety production; management system

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Autor: Yuhai Guo, Xinggao Li, Dajun Yuan

Fuente: http://www.scirp.org/



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