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Title:
凍結管の施工方法
Document Type and Number:
Japanese Patent JP6661375
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a construction method of a freezing pipe capable of preventing the inflow-outflow of a pollutant to the inside-outside of an underground structure.SOLUTION: A first casing 3a is installed up to a bottom slab 1a being a concrete slab of an underground structure 1. In this case, the tip of the casing 3a is inserted up to the middle of a thickness of the bottom slab 1a. For example, the tip of the casing 3a is inserted into the bottom slab 1a up to this side of a part for arranging a reinforcement of the bottom slab 1a. Next, a water cutoff material 5 is filled by a predetermined quantity on the inside of the casing 3a. After solidifying the water cutoff material 5, a second casing 3b is inserted into the inside of the casing 3a. Excavation is executed up to under an underground structure 1 by penetrating the bottom slab 1a together with the water cutoff material 5 inside of the casing 3a by a casing 3b. For example, the excavation is executed up to an underground impermeable water layer by the casing 3b.SELECTED DRAWING: Figure 1

Inventors:
Seijiro Matsumoto
Hiromitsu Kida
Takamura Takashi
Kosei Yoshida
Satoshi Kashiwagi
Application Number:
JP2016002265A
Publication Date:
March 11, 2020
Filing Date:
January 08, 2016
Export Citation:
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Assignee:
Kashima Construction Co., Ltd.
Chemical Grout Co., Ltd.
International Classes:
E02D29/045; B09C1/00; E02D19/14; E02D29/05; E02D31/00
Domestic Patent References:
JP58076700A
JP11172708A
JP2008291458A
JP2002322892A
JP4017485U
JP47034453B1
JP55055727A
JP55045943A
JP2015224521A
JP8093395A
Attorney, Agent or Firm:
Seiichi Inoue



 
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