Title:
CONSTRUCTION METHOD FOR ROAD
Document Type and Number:
Japanese Patent JP3224503
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To suppress settlement due to consolidation caused by dynamic load by specifying the height from the tips of soil-cement column bodies, constructed in the weak ground at a specified top view improvement ratio, to the road paved surface.
SOLUTION: Soil-cement column bodies 1 are constructed in the weak ground of a road foundation at a top view improvement ratio of 20-60%, and a shallow improving soil layer 11 with cement group consolidating material mixed and consolidated is laid thereon. A grading-adjusted crushed stone layer 15 is further laid thereon and paved with asphalt-concrete 16. In this case, the height from the tips of the soil-cement column bodies 1 to the road paved surface is to be 4m or more. The plane layout of the soil-cement column bodies 1 is to be of grated shape, and it is desirable that the spacing of grating is not more than twice the height from the upper ends of the soil-cement column bodies 1 to the road paved surface. Settlement due to consolidation caused by dynamic load is thereby suppressed in spite of the small improved area of the deep layer ground, and a road can be constructed efficiently at a low construction cost.
Inventors:
Tetsuhiko Miura
Kazuyuki Fujikawa
Hamatake Akira
Hideki Tanaka
Kosei Fukuda
Shigeru Yoshida
Kazuyuki Fujikawa
Hamatake Akira
Hideki Tanaka
Kosei Fukuda
Shigeru Yoshida
Application Number:
JP30429995A
Publication Date:
October 29, 2001
Filing Date:
November 22, 1995
Export Citation:
Assignee:
Tenox Co., Ltd.
Tenox Kyushu Co., Ltd.
Mitsubishi Materials Corporation
Diamond Consultant Co., Ltd.
Tokyo Fuso Industry Co., Ltd.
Tenox Kyushu Co., Ltd.
Mitsubishi Materials Corporation
Diamond Consultant Co., Ltd.
Tokyo Fuso Industry Co., Ltd.
International Classes:
E01C3/00; E02D3/12; (IPC1-7): E01C3/00; E02D3/12
Domestic Patent References:
| JP5044629A | ||||
| JP60152718A | ||||
| JP5193515A |
Attorney, Agent or Firm:
Tomo Hisakado