Title:
【発明の名称】地下ダム
Document Type and Number:
Japanese Patent JP2869431
Kind Code:
B2
Abstract:
An underground dam is formed of a water flow preventing wall for blocking a water permeable layer of soil to form a storing portion for storing underground water on an upper stream side relative to the water flow preventing wall. The water flow preventing wall has an opening, and an opening-closing device for opening and closing the opening is provided. Thus, the underground water on the upper stream side can be supplied to a down stream side through the opening.
Inventors:
SHIOSAKA KUNIO
Application Number:
JP30010395A
Publication Date:
March 10, 1999
Filing Date:
November 17, 1995
Export Citation:
Assignee:
KANKYO ASESUMENTO SENTAA KK
International Classes:
E03B3/02; E02D19/12; E02D19/18; E03B3/34; (IPC1-7): E03B3/34
Domestic Patent References:
| JP4161533A |
Attorney, Agent or Firm:
Shizutomi Kato (1 person outside)