CN208733416U - A kind of place base formation - Google Patents
A kind of place base formation Download PDFInfo
- Publication number
- CN208733416U CN208733416U CN201821337290.9U CN201821337290U CN208733416U CN 208733416 U CN208733416 U CN 208733416U CN 201821337290 U CN201821337290 U CN 201821337290U CN 208733416 U CN208733416 U CN 208733416U
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- CN
- China
- Prior art keywords
- layer
- backfill
- natural
- strong rammer
- crust
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of place base formations, it from top to bottom successively include backfill layer (2) and natural crust layer (1), wherein backfill layer (2) is to be tamped to be formed using strong rammer by the weak soil layer on the natural crust layer (1), the weak soil layer after strong rammer compacting forms closely knit backfill layer (2), the backfill layer (2) and the natural crust layer (1) form overlapping layers (3), and overlapping layers (3) thickness is not less than 8m.The technical solution of the utility model solves shallow-layer there are when crust layer, and place basement process cost is high, ineffective problem.
Description
Technical field
The utility model relates to a kind of place base formations, more particularly to one kind is when there are when natural crust layer for ground shallow
Place base formation.
Background technique
Building function is very high to the requirement of levelling of the land degree, when existing site condition is not able to satisfy requirement, normal condition
Under, place method for processing foundation can be using vibro-replacement stone column, CFG etc..It is conventional when ground shallow is there are when natural crust layer
Processing method is both needed to penetrate crust layer, handles depth about 20m, cost is high, and effect is also usually unable to reach most preferably after processing.
In order to solve the above-mentioned technical problem, the utility model proposes a kind of when there are when natural crust layer for ground shallow
Place base formation.
Utility model content
The technical solution of the utility model is as follows:
A kind of place base formation, which is characterized in that include successively from top to bottom backfill layer and natural crust layer, wherein returning
Packing course is to be tamped to be formed using strong rammer by the weak soil layer on the natural crust layer, and the weak soil layer after strong rammer compacting forms close
Real backfill layer, the backfill layer and the natural crust layer form overlapping layers, and the overlapping layers thickness is not less than 8m, described strong
The tamping energy that compacting uses is 1000-2000KNM, to prevent from destroying the natural crust layer.
The technical solution of the utility model solves shallow-layer there are when crust layer, stadium place basement process cost is high,
Ineffective problem.
Detailed description of the invention
Fig. 1 is place base formation schematic diagram.
Appended drawing reference is expressed as follows in figure: the natural crust layer of 1-, and 2- backfills layer, 3- overlapping layers.
Specific embodiment
A kind of place base formation, which is characterized in that from top to bottom successively including backfill layer 2 and natural crust layer 1, wherein
Backfill layer 2 is to be tamped to be formed using strong rammer by the weak soil layer on the natural crust layer 1, the weak soil layer shape after strong rammer compacting
At closely knit backfill layer 2, the backfill layer 2 forms overlapping layers 3 with the natural crust layer 1, and 3 thickness of overlapping layers is not less than
8m, the tamping energy that the strong rammer compacting uses is 1000-2000KNM, to prevent from destroying the natural crust layer 1.
Claims (1)
1. a kind of place base formation, which is characterized in that it from top to bottom successively include backfilling layer (2) and natural crust layer (1),
Middle backfill layer (2) is to be tamped to be formed using strong rammer by the weak soil layer on the natural crust layer (1), described weak after strong rammer compacting
Soil layer forms closely knit backfill layer (2), and the backfill layer (2) and the natural crust layer (1) form overlapping layers (3), described folded
It closes layer (3) thickness and is not less than 8m, the tamping energy that the strong rammer compacting uses is 1000-2000KNM, to prevent from destroying the day
Right crust layer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821337290.9U CN208733416U (en) | 2018-08-20 | 2018-08-20 | A kind of place base formation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821337290.9U CN208733416U (en) | 2018-08-20 | 2018-08-20 | A kind of place base formation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208733416U true CN208733416U (en) | 2019-04-12 |
Family
ID=66031544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821337290.9U Expired - Fee Related CN208733416U (en) | 2018-08-20 | 2018-08-20 | A kind of place base formation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208733416U (en) |
-
2018
- 2018-08-20 CN CN201821337290.9U patent/CN208733416U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190412 Termination date: 20210820 |