JPS56125520A - Composite grouting work - Google Patents
Composite grouting workInfo
- Publication number
- JPS56125520A JPS56125520A JP1155681A JP1155681A JPS56125520A JP S56125520 A JPS56125520 A JP S56125520A JP 1155681 A JP1155681 A JP 1155681A JP 1155681 A JP1155681 A JP 1155681A JP S56125520 A JPS56125520 A JP S56125520A
- Authority
- JP
- Japan
- Prior art keywords
- grout
- ground
- injected
- permeability
- injection
- 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
Abstract
PURPOSE: To uniformly soldify the whole of soil layer of soft ground by a method in which a grout of bad permeability, whose gelling time is within a specific period of time is first injected into the ground, and then another grout of a good permeability is injected into the ground.
CONSTITUTION: Plural grouts having different permeabilities are injected into the ground through a multiple injection tube. In this case, plural grout injection ports are placed at places of different depths in the direction of injection, a quick setting grout whose gelling time is within 30sec is first injected into the ground to form a seal having a packing effect in space or weak portion around the injection tube. Then, another grout of a better permeability is injected in an overlapping menner into the quick setting grout-injected region through an injection pipe positioned at a depth different from the previous injection port. The grout of better permeability can penetrate into the places other than the quick setting grout-injected ground without escaping to the ground's surface; that is, the grout penetrates into places where the grout of bad permeability could not penetrate. Such a process is repeated and the whole of the ground can be completely stabilized.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1155681A JPS56125520A (en) | 1981-01-30 | 1981-01-30 | Composite grouting work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1155681A JPS56125520A (en) | 1981-01-30 | 1981-01-30 | Composite grouting work |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53164143A Division JPS5939007B2 (en) | 1978-12-30 | 1978-12-30 | Composite grouting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56125520A true JPS56125520A (en) | 1981-10-01 |
Family
ID=11781211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1155681A Pending JPS56125520A (en) | 1981-01-30 | 1981-01-30 | Composite grouting work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56125520A (en) |
-
1981
- 1981-01-30 JP JP1155681A patent/JPS56125520A/en active Pending
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