Title:
GROUND IMPROVEMENT STRUCTURE AND EXCAVATING METHOD
Document Type and Number:
Japanese Patent JP2019199692
Kind Code:
A
Abstract:
To provide a ground improvement structure and like capable of reducing bending moment and shearing force created in an artificial impermeable layer.SOLUTION: A ground improvement structure comprises: an earth retaining wall 3 at both sides of an excavated place in the ground 2; an artificial impermeable layer 4 formed through improving the ground 2 between the earth retaining walls 3; an intermediate pile arranged between the earth retaining walls 3 and supporting a strut 7 between the earth retaining walls 3, of which a lower part is buried in the artificial impermeable layer 4. As a lower end of the intermediate pile 5 is placed at a deeper position than the artificial impermeable layer 4, the artificial impermeable layer 4 is anchored in the lower ground 2 with the part of the intermediate pile 5 deeper than the artificial impermeable layer 4 to create resistance force in the artificial impermeable layer 4 against uplifting pressure "a" of subterranean water on the artificial impermeable layer 4.SELECTED DRAWING: Figure 5
Inventors:
YASUNAGA MASAMICHI
Application Number:
JP2018093006A
Publication Date:
November 21, 2019
Filing Date:
May 14, 2018
Export Citation:
Assignee:
KAJIMA CORP
International Classes:
E02D31/12; E02D3/12; E02D5/54; E02D5/80; E02D17/04; E02D29/05
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Attorney, Agent or Firm:
Seiichi Inoue