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1. WO2018134944 - SOIL STABILIZATION METHOD

Publication Number WO/2018/134944
Publication Date 26.07.2018
International Application No. PCT/JP2017/001730
International Filing Date 19.01.2017
IPC
E02D 3/08 2006.01
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
3Improving or preserving soil or rock, e.g. preserving permafrost soil
02Improving by compacting
08by inserting stones or lost bodies, e.g. compaction piles
CPC
C09K 8/487
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
42Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
46containing inorganic binders, e.g. Portland cement
467containing additives for specific purposes
487Fluid loss control additives; Additives for reducing or preventing circulation loss
E02D 3/08
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS
3Improving or preserving soil or rock, e.g. preserving permafrost soil
02Improving by compacting
08by inserting stones or lost bodies, e.g. compaction piles
E02D 3/12
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS
3Improving or preserving soil or rock, e.g. preserving permafrost soil
12Consolidating by placing solidifying or pore-filling substances in the soil
Applicants
  • 株式会社光建設 HIKARU CONSTRUCTION COMPANY LIMITED [JP]/[JP]
Inventors
  • 渡邉 光雄 WATANABE Mitsuo
Agents
  • 特許業務法人パテントボックス PATENTBOX IP LAW FIRM
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) SOIL STABILIZATION METHOD
(FR) PROCÉDÉ DE STABILISATION DU SOL
(JA) 地盤改良方法
Abstract
(EN)
The purpose is to provide a soil stabilization method with which a sufficient ground consolidation effect can be obtained even if the soil contains humus. This embodiment of a soil stabilization method includes a step of depositing, from the surface, an aggregate containing humus and a solidification material containing aluminum sulfate into a borehole after forming the borehole of a prescribed depth while rotating an earth auger, and then consolidating the periphery of the borehole and the inside of the borehole by applying horizontal pressure to the aggregate and solidification material by rotating the earth auger in reverse and applying a vertical axial force.
(FR)
L'invention a pour but de fournir un procédé de stabilisation du sol avec lequel un effet de consolidation du sol suffisant peut être obtenu même si le sol contient de l'humus. Ledit mode de réalisation d'un procédé de stabilisation du sol comprend une étape de dépôt, à partir de la surface, d'un agrégat contenant de l'humus et d'un matériau de solidification contenant du sulfate d'aluminium dans un trou de sonde après la formation de celui-ci jusqu'à une profondeur prédéterminée par rotation d'une tarière, puis de consolidation de la périphérie et de l'intérieur du trou de sonde par application d'une pression horizontale à l'agrégat et au matériau de solidification par la rotation de la tarière en marche arrière et par l'application d'une force axiale verticale.
(JA)
腐植土を含む地盤であっても、十分な地盤の圧密効果が得られる地盤改良工法を提供する。本発明の一実施形態に係る地盤改良方法は、アースオーガーを正転しながら所定深さの掘削孔を形成した後、地表部から前記掘削孔に腐植土を含む骨材と、硫酸アルミニウムを含む固化材とを投入し、前記アースオーガーを逆回転すると共に、垂直方向の軸力を加えることにより前記骨材及び前記固化材に水平方向の力を加えて掘削孔の周囲及び掘削孔内を圧密する工程を含む。
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