Title:
WATERPROOF SHEET AND DRAIN STRUCTURE FOR UNDERGROUND STRUCTURE
Document Type and Number:
Japanese Patent JP2584555
Kind Code:
B2
Abstract:
PURPOSE: To greatly raise the efficiency of construction work.
CONSTITUTION: Expanded parts 2A are formed in parallel in the longitudinal direction of each side of four sides of a rectangular waterproof sheet 2, and the expanded parts 2A of one-set sides among two sets of sides facing each other are allowed to fit each other vertically. Also, the expanded parts 2A of the side of the other set are allowed to fit each other vertically. The expanded part 2A1 of the angled portion among the expanded parts 2A positioned on the sides is made larger in a plan view than the other expanded parts 2A2.
Inventors:
YAMASHITA MASARU
INO TATSUO
KUMANO MITSUGI
WADA SADAO
INO TATSUO
KUMANO MITSUGI
WADA SADAO
Application Number:
JP22763291A
Publication Date:
February 26, 1997
Filing Date:
September 09, 1991
Export Citation:
Assignee:
TAKENAKA KOMUTEN CO
International Classes:
E02D31/02; E02D29/00; (IPC1-7): E02D31/02; E02D29/00
Domestic Patent References:
| JP328424A | ||||
| JP2300423A | ||||
| JP313344U |
Attorney, Agent or Firm:
Kitamura Osamu