Title:
A filling method of water absorption expansive clay material
Document Type and Number:
Japanese Patent JP6226212
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a filling method of a water-absorption expansive clay material that allows the water-absorption expansive clay material to be filled to a filling density small in variation.SOLUTION: A filling method of a water-absorption expansive clay material fills clearances or partitioned spaces with pellets each in which a material whose main component is clay having water absorption expansibility is formed in a substantially spherical shape. Large-diameter pellets are sprayed ahead in a layer shape, then small-diameter pellets are dropped and sprayed. Thus, the clearances between the large-diameter pellets are filled with the dropped small-diameter pellets. The small-diameter pellets are sprayed after the large-diameter pellets are sprayed. After that, the small-diameter pellets are blown by injection of high-pressure compressed air to be leveled, and the small-diameter pellets are dropped in the clearances between the large-diameter pellets.SELECTED DRAWING: Figure 1
Inventors:
Takashi Ishii
Hitoshi Nakajima
Hitoshi Nakajima
Application Number:
JP2016220140A
Publication Date:
November 08, 2017
Filing Date:
November 11, 2016
Export Citation:
Assignee:
Shimizu Construction Co., Ltd.
International Classes:
G21F9/36; B09B1/00
Domestic Patent References:
| JP2009233558A | ||||
| JP6041513A | ||||
| JP2007319732A | ||||
| JP2012132867A | ||||
| JP56116419U | ||||
| JP2000240025A | ||||
| JP2006214214A |
Foreign References:
| US4467015 |
Attorney, Agent or Firm:
Takashi Koyama
Teiji Tanaka
Akira Yonezawa
Takehiko Katayose
Teiji Tanaka
Akira Yonezawa
Takehiko Katayose
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