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Patent Searching and Data


Title:
METHOD FOR INSTALLING AND RECOVERING EARTH PRESSURE GAUGE, AND STRUCTURE FOR INSTALLING THE EARTH PRESSURE GAUGE
Document Type and Number:
Japanese Patent JP2011017218
Kind Code:
A
Abstract:

To recover an earth pressure gauge, which is installed below a loading slab, without damaging the earth pressure gauge, after a loading test.

Silica sand 20 is leveled off in a hole section 18 which is formed by digging down the ground 30; and the earth pressure gauge 12 is installed. A resin sheet 22 is arranged in such a manner as to cover a top surface of the silica sand 20 and a pressure receiving surface 12A of the earth pressure gauge 12; and a peripheral edge 22A of the sheet 22 is exposed on the ground 30 around the hole section 18. In addition, mortar is infilled onto the top surface of the sheet 22 and hardened, so as to form a mortar layer 24. The loading slab 16 made of a concrete slab, in which a wire mesh bar 26 is arranged, is constructed on the ground 30 and the mortar layer 24. After the loading test is performed by applying a vertical load to the loading slab 16, the loading slab 16 is lifted by heavy equipment. Thus, the mortar layer 24 and the sheet 22 below the loading slab 16 are pulled up integrally with the loading slab 16; and the earth pressure gauge 12 is separated from the mortar layer 24. In this state, the earth pressure gauge 12 exposed in the hole section 18 is recovered.


Inventors:
YAMADA TAKESHI
TSUCHIYA TOMIO
HAMADA JUNJI
OMOTO SATOSHI
Application Number:
JP2009163789A
Publication Date:
January 27, 2011
Filing Date:
July 10, 2009
Export Citation:
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Assignee:
TAKENAKA KOMUTEN CO
International Classes:
E02D1/00
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda