PROPULSION CONSTRUCTION METHOD

PROBLEM TO BE SOLVED: To facilitate target excavating position confirmation to the ground surface by making the steering characteristic of a guide body learned by the learning from the measured result of dislocation at the time of propulsion- excavating laterally in the specified attitude state of a...

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Bibliographic Details
Main Authors YAMADA YUKISHIGE, HATTORI MASAYA, SOGAWA TAKASHI, KABEUCHI TERUO
Format Patent
LanguageEnglish
Published 20.01.1998
Edition6
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Summary:PROBLEM TO BE SOLVED: To facilitate target excavating position confirmation to the ground surface by making the steering characteristic of a guide body learned by the learning from the measured result of dislocation at the time of propulsion- excavating laterally in the specified attitude state of an excavating inclined pressure receiving face of a guide body. SOLUTION: In a crossing process, excavation is performed with an inclined pressure receiving face 65 of a guide body 6 turned downward for horizontal propulsion from a spot A1 to a spot A2, and then a second propulsion pipe 4 is gripped to turn the inclined pressure receiving face 65 upward for excavation and propulsion. The learning of a vertical steering characteristic of the guide body 6 is judged from the measured result of a dislocation degree at the time of excavating by the fixed distance. A surfacing path C can thereby be predicted on the basis of the learning result so as to be able to calculate the position of the spot A2 more appropriately, In a surfacing process, the guide body 6 can accurately come out to the spot A3 if the surfacing path C described by a dotted line can be predicted by accurately grasping soil quality.
Bibliography:Application Number: JP19960173190