JPS57190828A - Ground improving method - Google Patents
Ground improving methodInfo
- Publication number
- JPS57190828A JPS57190828A JP6090381A JP6090381A JPS57190828A JP S57190828 A JPS57190828 A JP S57190828A JP 6090381 A JP6090381 A JP 6090381A JP 6090381 A JP6090381 A JP 6090381A JP S57190828 A JPS57190828 A JP S57190828A
- Authority
- JP
- Japan
- Prior art keywords
- ground
- outer tube
- rotary shaft
- agitating vane
- improving agent
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
- E02D3/126—Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades
Abstract
PURPOSE:To enable compacting of a device and simultaneously to improve an underground inserting speed, by a method wherein a flow path for air jet and water jet is formed through utilization of an outer tube of a double-structured rotary shaft of an agitating vane for agitating a ground improving agent and a viscous earth. CONSTITUTION:A rotary shaft 1 of an agitating vane 5 consists of an inner tube 3 and an outer tube 2. In case an improvement is made on a ground, with a motor 10 run, the outer tube 2 and the inner tube 2, which are supported by double swivel coupling parts 13 and 14, are spun, and simultaneously, a pressurized fluid, serving as a jet thrust, is flowed down by pressure into the outer tube 2 through a feed port 18. This inserts the rotary shaft 1 for agitating vane into a ground. If it is inserted to a given depth, the supply of the pressurized liquid is brought to a stop, and a ground improving agent is supplied by air pressure into the inner tube 3 as the rotary shaft 1 is pulled off. This causes the improving agent and earth to be agitated and kneaded through turn of the agitating vane 5 of the outer tube 2 to form the improved ground which is cured in a pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6090381A JPS57190828A (en) | 1981-04-21 | 1981-04-21 | Ground improving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6090381A JPS57190828A (en) | 1981-04-21 | 1981-04-21 | Ground improving method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57190828A true JPS57190828A (en) | 1982-11-24 |
Family
ID=13155775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6090381A Pending JPS57190828A (en) | 1981-04-21 | 1981-04-21 | Ground improving method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57190828A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0527128U (en) * | 1991-09-13 | 1993-04-09 | 株式会社エポツク・ソイル工法研究所 | Ground improvement device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5281909A (en) * | 1975-12-27 | 1977-07-08 | Kazuharu Fujito | Apparatus for forming column made of subsoil hardening material with feed gravimeter |
-
1981
- 1981-04-21 JP JP6090381A patent/JPS57190828A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5281909A (en) * | 1975-12-27 | 1977-07-08 | Kazuharu Fujito | Apparatus for forming column made of subsoil hardening material with feed gravimeter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0527128U (en) * | 1991-09-13 | 1993-04-09 | 株式会社エポツク・ソイル工法研究所 | Ground improvement device |
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