EXPANDABLE INJECTION BOLT AND GROUTING METHOD USING SAME

An expandable injection bolt (1A) comprising an expandable section (3), which has a tubular shape capable of applying an internal pressure form a rear end portion and expands in a radial direction when the internal pressure is applied, and an injection port forming section (9A) which opens an inject...

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Bibliographic Details
Main Authors AWA HIROSHI, HIRANO KENKICHI
Format Patent
LanguageEnglish
Published 19.10.2006
Subjects
EARTH DRILLING
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
GALLERIES
HYDRAULIC ENGINEERING
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
SOIL SHIFTING
TUNNELS
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:An expandable injection bolt (1A) comprising an expandable section (3), which has a tubular shape capable of applying an internal pressure form a rear end portion and expands in a radial direction when the internal pressure is applied, and an injection port forming section (9A) which opens an injection port (7) when the internal pressure is applied, wherein the expandable section (3) is expanded by the internal pressure so as to tightly adhere to ground, then the injection port forming section (9A) is caused to open the injection port (7), and a grout can be injected into the ground through the injection port (7) to reinforce the ground.
Bibliography:Application Number: KR20057008555