METHOD OF ENCLOSING UNDERGROUND CONTAMINANT BY CUTOFF WALL

Title:

METHOD OF ENCLOSING UNDERGROUND CONTAMINANT BY CUTOFF WALL

Document Type and Number:

Japanese Patent JP2001214453

Kind Code:

A

Abstract:

To provide a method of enclosing underground contaminants by cutoff walls.

Movements of ground water where a contaminant 1 is eluted are slowed by installing cutoff walls 3 which surround the contaminant 1 under the ground and do not reach an impermeable layer 2 and by slowing the flow velocity of the underground water in an inside 4. The flow velocity of the underground water at a specific place of the inside 4 is adjusted by changing either/both of an installing width B for cutoff walls 3 which are perpendicular to the flow of the underground water or/and an installing depth H. Since the flow velocity of the underground water at the specific place of the inside 4 is constant when the ratio of the installing width B to the installing depth H is constant, a plan depending on a nomogram using the formula can be made.

Inventors:

MIKI HIROSHI
FURUMOTO ICHIJI
YAMAMOTO CHIKASHI
KUWABARA MASAHIKO
HARADA KENJI
OGISHIMA TATSUYA
ISHIDA HIDEKI
YOSHIHARA SHIGEKI
KUBO MASAAKI
SARAUMI AKIO
MORITA HIROO
OKAMOTO SHINSAKU
IWATA HIDEKI

Application Number:

JP2000059577A

Publication Date:

August 07, 2001

Filing Date:

January 31, 2000

Export Citation:

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Assignee:

PUBLIC WORKS RES INST MINISTRY
PUBLIC WORKS RES CT
FUDO CONSTRUCTION CO
SHIMIZU CONSTRUCTION CO LTD
HONMAGUMI KK

International Classes:

E02D19/12; (IPC1-7): E02D19/12

Domestic Patent References:

JPH1060882A	1998-03-03
JPH10317307A	1998-12-02

Attorney, Agent or Firm:

Someya Koji

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