Title:
MANHOLE AND ITS CONSTRUCTION METHOD
Document Type and Number:
Japanese Patent JP2005232891
Kind Code:
A
Abstract:
To provide a manhole and its construction method capable of adjusting the height of its tip.
This manhole is formed by arranging a vertically adjusting ring in an upper opening of the manhole so as to adjust the height by a screw. This manhole construction method lifts the adjusting ring in layers in response to the settlement of the ground when rolling the manhole peripheral edge ground.
Inventors:
KURIYAMA MITSUGI
Application Number:
JP2004045747A
Publication Date:
September 02, 2005
Filing Date:
February 23, 2004
Export Citation:
Assignee:
KURIYAMA MITSUGI
International Classes:
E02D29/12; E03F5/02; (IPC1-7): E02D29/12; E03F5/02
Attorney, Agent or Firm:
Satoshi Kumon
Kumon enjoyment
Kumon enjoyment
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