CN203200739U - Highway subgrade gravel pile - Google Patents
Highway subgrade gravel pile Download PDFInfo
- Publication number
- CN203200739U CN203200739U CN 201320041557 CN201320041557U CN203200739U CN 203200739 U CN203200739 U CN 203200739U CN 201320041557 CN201320041557 CN 201320041557 CN 201320041557 U CN201320041557 U CN 201320041557U CN 203200739 U CN203200739 U CN 203200739U
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- pile
- highway subgrade
- pile body
- highway
- bodies
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a highway subgrade gravel pile for frozen soil foundations or soft soil foundations. Island-shaped permafrost under subgrades is quite difficult to protect, a long time is required for thawing settlement and stabilization of the permafrost foundations, and if the permafrost is not processed, diseases occur inevitably or certain labile factors exist potentially during operation of highways. The highway subgrade gravel pile is composed of a group of pile bodies (1), wherein the pile bodies are cylinders, the group contains three pile bodies, and the three pile bodies are distributed in an equilateral triangle mode. The highway subgrade gravel pile is applicable to the frozen soil highway subgrades.
Description
Technical field:
The utility model relates to the highway subgrade stake of frozen soil or soft foundation.
Background technology:
For a long time, research stable about subgrade in permafrost soil zone and disease management is both at home and abroad continuing always, effort by numerous experts, scholar has obtained great successes, and the theory and technology level has had large increase, is also accumulating rich experience aspect practice and the production application.By the experimental study to the prospecting of the ever-frozen ground of our province and some relevant problems; recognize that the island ever-frozen ground under the protection roadbed is very difficult; and the thaw collapse of ever-frozen ground ground and the stable long time that needs; if ever-frozen ground is not handled; in the operation process of highway, will certainly produce disease or potential certain destabilizing factor; therefore, the ever-frozen ground Ground Treatment Schemes of seeking effective control frozen soil disease and economical rationality is very necessary.
Summary of the invention:
The highway subgrade broken stone pile that the utility model provides a kind of suitable ever-frozen ground district highway to use can effectively overcome the highway distress that ever-frozen ground produces.
The purpose of this utility model is achieved in that
A kind of highway subgrade broken stone pile, its composition comprises: one group of pile body, described pile body are cylindrical, 3 of described pile bodies are one group, become equilateral triangle to distribute between 3 described pile bodies.
Described highway subgrade broken stone pile, described pile body diameter 300-600mm, length 2-10 rice.Described pile body is made up of the phase layer that the layering filling tamped forms, every layer of 35cm of described phase layer～80cm height, and the described triangle length of side is 3 ~ 5 times of pile body diameter, ballast grain sizes 5-20mm.
Described highway subgrade broken stone pile, described pile body top has mattress layer, the thickness 10-30cm of described mattress layer.
Beneficial effect:
1. the utility model is in conjunction with Heilongjiang Province's ever-frozen ground feature and disease mechanism thereof, reinforcement mechanism and the scope of application with reference to the treatment of soft foundation scheme, reference lime pile, lime-soil compaction pile, sand-gravel pile, rubble compaction pile, rammed concrete pile, CFG stake, post hammer develop Ground Treatment Schemes commonly used such as stake, carry out consolidation process at different ever-frozen ground highway section ground.
2. to adopt graded broken stone, the utility model be that layering is inserted rubble and (inserted 0.06～0.1m at every turn in particular bore to the utility model material of body of a pile
3
), adopt special-purpose construction machinery, promote weight to certain altitude, make its freely falling body, ram rubble; Insert rubble successively, ram rubble, be filled to design elevation until rammer.
Utilize the kinetic energy of weight, (contour pile body uses the identical energy of ramming by certain parameter control; Pile penetration is hit in control second, thereby obtains identical distortion), make the inter-pile soil body obtain effectively maximum compacted effect, pile body itself vertically obtains effectively compacted, improves the bearing capacity of stake greatly.Form the higher composite foundation of bearing capacity by broken stone pile.
3. the utility model is handled the degree of depth and is generally 2-10m, therefore, can be used for the ever-frozen ground ground is handled, thereby improve bearing capacity of foundation soil, reduces thaw collapse amount and the compressibilty of frozen soil foundation.
Description of drawings:
Accompanying drawing 1 is structural representation of the present utility model.
The specific embodiment:
Embodiment 1:
A kind of highway subgrade broken stone pile, its composition comprises: one group of pile body 1, described pile body are cylindrical, 3 of described pile bodies are one group, become equilateral triangle to distribute between 3 described pile bodies.
Embodiment 2:
Embodiment 1 described highway subgrade broken stone pile, described pile body diameter 300-600mm, length 2-10 rice.Described pile body is made up of the phase layer that the layering filler forms, every layer of 35cm of described phase layer～80cm height, and the described triangle length of side is 3 ~ 5 times of pile body diameter, ballast grain sizes 5-20mm.
Embodiment 3:
Embodiment 1 or 2 described highway subgrade broken stone pile, described pile body top has mattress layer, the thickness 10-30cm of described mattress layer.
Claims (3)
1. highway subgrade broken stone pile, its composition comprises: one group of pile body is characterized in that: described pile body is cylindrical, 3 of described pile bodies are one group, become equilateral triangle to distribute between 3 described pile bodies.
2. according to the described highway subgrade broken stone pile of claim 1, it is characterized in that: described pile body diameter 300-600mm, length 2-10 rice, described pile body is made up of the phase layer that layering filler and compacting form, every layer of 35cm of described phase layer～80cm height, the described triangle length of side is 3 ~ 5 times of pile body diameter, ballast grain sizes 5-20mm.
3. according to claim 1 or 2 described highway subgrade broken stone pile, it is characterized in that: gravel or rubble mattress layer, the thickness 10-30cm of described mattress layer are laid in described pile body top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320041557 CN203200739U (en) | 2013-01-25 | 2013-01-25 | Highway subgrade gravel pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320041557 CN203200739U (en) | 2013-01-25 | 2013-01-25 | Highway subgrade gravel pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203200739U true CN203200739U (en) | 2013-09-18 |
Family
ID=49144863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320041557 Expired - Fee Related CN203200739U (en) | 2013-01-25 | 2013-01-25 | Highway subgrade gravel pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203200739U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526771A (en) * | 2013-10-22 | 2014-01-22 | 青海省电力设计院 | Transformer substation reactor foundation applicable to high-altitude permafrost areas |
-
2013
- 2013-01-25 CN CN 201320041557 patent/CN203200739U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526771A (en) * | 2013-10-22 | 2014-01-22 | 青海省电力设计院 | Transformer substation reactor foundation applicable to high-altitude permafrost areas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20160125 |
|
| EXPY | Termination of patent right or utility model |