DAMPER OF VIBRATION PILE DRIVER

PURPOSE:To improve operation efficiency by providing an added weight on the immovable portion at the upper side of a damper and relatively increasing the weight of the immovable portion side over a particular ratio with respect to that of a vibration portion side. CONSTITUTION:An immovable portion,...

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Bibliographic Details
Main Authors MIZUTA SADACHIKA, EGAWA KIKUJI
Format Patent
LanguageEnglish
Published 18.06.1990
Subjects
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Abstract PURPOSE:To improve operation efficiency by providing an added weight on the immovable portion at the upper side of a damper and relatively increasing the weight of the immovable portion side over a particular ratio with respect to that of a vibration portion side. CONSTITUTION:An immovable portion, comprising an upper lifting lug 9a, hanging shafts 11a and a lower spring shoe 14b, of the upper side of a damper 5 is connected to a sheave block suspended by the wire rope of a crane. The vibration part, comprising an upper spring shoe 14a, a hanging shaft 14b, a coil spring 13 and a lower spring shoe 96, of the lower side of the damper 5 is connected to a vibration pile driver via a wire. An added weight 10 is provided at the immovable portion to relatively increase the weight of the immovable portion over at least 20% with regard to the vibration body of the vibration part side.
AbstractList PURPOSE:To improve operation efficiency by providing an added weight on the immovable portion at the upper side of a damper and relatively increasing the weight of the immovable portion side over a particular ratio with respect to that of a vibration portion side. CONSTITUTION:An immovable portion, comprising an upper lifting lug 9a, hanging shafts 11a and a lower spring shoe 14b, of the upper side of a damper 5 is connected to a sheave block suspended by the wire rope of a crane. The vibration part, comprising an upper spring shoe 14a, a hanging shaft 14b, a coil spring 13 and a lower spring shoe 96, of the lower side of the damper 5 is connected to a vibration pile driver via a wire. An added weight 10 is provided at the immovable portion to relatively increase the weight of the immovable portion over at least 20% with regard to the vibration body of the vibration part side.
Author EGAWA KIKUJI
MIZUTA SADACHIKA
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RelatedCompanies MITSUBISHI HEAVY IND LTD
FUDO CONSTR CO LTD
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Snippet PURPOSE:To improve operation efficiency by providing an added weight on the immovable portion at the upper side of a damper and relatively increasing the...
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SubjectTerms EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
Title DAMPER OF VIBRATION PILE DRIVER
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