EARTH ANCHOR AND FIXING THEREOF

PURPOSE:To sufficiently secure the covering thickness of grout by a method in which linked centralizers are set on the front and rear ends of earth anchor and projected outwards in an excavated skew pit to centrally position the earth anchor. CONSTITUTION:A tip centralizer 2 and an intermediate cent...

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Main Authors WATABE TERUYA, MORIMOTO TOSHIYUKI, HIRAISHI GOICHI, ARIYAMA MINEO, NEMOTO HISASHI, FUJITA MASAKAZU, HIRANO SAKAE, SATO HIROYUKI, TAKEUCHI YOSHIO, YUTANI TAKAO, SUGA KOICHI, YAMAMOTO KAZUHIRO, HAMAZUKA SEIJI
Format Patent
LanguageEnglish
Published 10.08.1993
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Abstract PURPOSE:To sufficiently secure the covering thickness of grout by a method in which linked centralizers are set on the front and rear ends of earth anchor and projected outwards in an excavated skew pit to centrally position the earth anchor. CONSTITUTION:A tip centralizer 2 and an intermediate centralizer 3 are each attached to the tip cap 5 of a tension member 1 and an attached steel tube 6. The centralizers 2 and 3 are each made up of a link device projected outwards by spring and a stopper to hold the projected position. A cylindrical casing is inserted into an excavated skew pit and the centralizers 2 and 3 in contracted state are inserted into the casing. The casing drawn out to expand the centralizers 2 and 3 in order to position the tension member at the center of the pit. During the period, a grout is injected to form an anchor 4, and after the grout hardens, the head of the tension member 1 is tensed by jacks to fix it. The sufficient covering thickness of the grout in the skew pit can thus be secured.
AbstractList PURPOSE:To sufficiently secure the covering thickness of grout by a method in which linked centralizers are set on the front and rear ends of earth anchor and projected outwards in an excavated skew pit to centrally position the earth anchor. CONSTITUTION:A tip centralizer 2 and an intermediate centralizer 3 are each attached to the tip cap 5 of a tension member 1 and an attached steel tube 6. The centralizers 2 and 3 are each made up of a link device projected outwards by spring and a stopper to hold the projected position. A cylindrical casing is inserted into an excavated skew pit and the centralizers 2 and 3 in contracted state are inserted into the casing. The casing drawn out to expand the centralizers 2 and 3 in order to position the tension member at the center of the pit. During the period, a grout is injected to form an anchor 4, and after the grout hardens, the head of the tension member 1 is tensed by jacks to fix it. The sufficient covering thickness of the grout in the skew pit can thus be secured.
Author MORIMOTO TOSHIYUKI
YAMAMOTO KAZUHIRO
ARIYAMA MINEO
HIRAISHI GOICHI
FUJITA MASAKAZU
SATO HIROYUKI
TAKEUCHI YOSHIO
SUGA KOICHI
HIRANO SAKAE
YUTANI TAKAO
WATABE TERUYA
NEMOTO HISASHI
HAMAZUKA SEIJI
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– fullname: HIRANO SAKAE
– fullname: SATO HIROYUKI
– fullname: TAKEUCHI YOSHIO
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– fullname: SUGA KOICHI
– fullname: YAMAMOTO KAZUHIRO
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Snippet PURPOSE:To sufficiently secure the covering thickness of grout by a method in which linked centralizers are set on the front and rear ends of earth anchor and...
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SubjectTerms EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
Title EARTH ANCHOR AND FIXING THEREOF
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