JPS5766230A - Drawing work for steel material of landslide protection wall - Google Patents
Drawing work for steel material of landslide protection wallInfo
- Publication number
- JPS5766230A JPS5766230A JP14171280A JP14171280A JPS5766230A JP S5766230 A JPS5766230 A JP S5766230A JP 14171280 A JP14171280 A JP 14171280A JP 14171280 A JP14171280 A JP 14171280A JP S5766230 A JPS5766230 A JP S5766230A
- Authority
- JP
- Japan
- Prior art keywords
- steel materials
- soil concrete
- hardened
- erected
- hollow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
PURPOSE: To easily draw out steel materials from hardened soil concrete by a method in which a master pile consisting of combined two steel materials is erected in a soil concrete pillar not hardened and then an expansion pressure by a blasting chemical is applied to the outside of the steel materials.
CONSTITUTION: A pit is excavated under the ground 1 to a given depth by an auger, a row of soil concrete pillars 2 are constructed, and then before the soil concrete is hardened, a master pile 5a consisting of combined steel materials 3 with a hollow 4 is erected in the soil concrete. A vertical hole 6 is formed in the soil concrete 2 throughout the vertical whole length of the steel materials 3 in contact with their outside, and then after the soil concrete 2 is hardened, or the completion of underground work, a blasting chemical 7 is enclosed in the hole 6 and fired. Whereupon, a temporary stopper means 12 between the steel materials 3 is broken by an expansion pressure produced by the abrupt combustion of the blasting chemical 7 and thereby the steel materials 3 are moved to the hollow, thus permitting the steel materials 3 to be easily drawn out of the soil concrete.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14171280A JPS5912809B2 (en) | 1980-10-08 | 1980-10-08 | Pulling method of steel material for retaining wall |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14171280A JPS5912809B2 (en) | 1980-10-08 | 1980-10-08 | Pulling method of steel material for retaining wall |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5766230A true JPS5766230A (en) | 1982-04-22 |
JPS5912809B2 JPS5912809B2 (en) | 1984-03-26 |
Family
ID=15298438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14171280A Expired JPS5912809B2 (en) | 1980-10-08 | 1980-10-08 | Pulling method of steel material for retaining wall |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5912809B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59192129A (en) * | 1983-04-13 | 1984-10-31 | Zenitakagumi:Kk | Sheathing work |
-
1980
- 1980-10-08 JP JP14171280A patent/JPS5912809B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59192129A (en) * | 1983-04-13 | 1984-10-31 | Zenitakagumi:Kk | Sheathing work |
JPH0470446B2 (en) * | 1983-04-13 | 1992-11-11 | Zenitaka Corp |
Also Published As
Publication number | Publication date |
---|---|
JPS5912809B2 (en) | 1984-03-26 |
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