STARTING DEVICE OF SHIELD MACHINE AND METHOD THEREOF
PROBLEM TO BE SOLVED: To easily and surely start a shield machine from a shaft. SOLUTION: A starting entrance formed in an earth retaining wall of a shaft 1, an external cylinder 20 provided sideways in the shaft 1 and having the starting entrance, an internal cylinder 30 placed in the shaft 1 in a...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To easily and surely start a shield machine from a shaft. SOLUTION: A starting entrance formed in an earth retaining wall of a shaft 1, an external cylinder 20 provided sideways in the shaft 1 and having the starting entrance, an internal cylinder 30 placed in the shaft 1 in a rotatable manner and having the starting entrance and a shield machine 2 are arranged toward the starting entrance of the internal cylinder 30. Then, the shield machine 2 is started from the starting entrance in a state to make the internal cylinder 30 to coincide with the starting entrance of the external cylinder 20. |
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