CN201981530U - Down hole deep dynamic compaction pile in collapsible loess area - Google Patents
Down hole deep dynamic compaction pile in collapsible loess area Download PDFInfo
- Publication number
- CN201981530U CN201981530U CN2010206746412U CN201020674641U CN201981530U CN 201981530 U CN201981530 U CN 201981530U CN 2010206746412 U CN2010206746412 U CN 2010206746412U CN 201020674641 U CN201020674641 U CN 201020674641U CN 201981530 U CN201981530 U CN 201981530U
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- hole
- lime
- stake
- soil
- collapsible loess
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a down hole deep dynamic compaction pile in the collapsible loess area, which comprises a pile hole (1) arranged in a collapsible loess layer. The lower half part of the pile hole (1) is filled with compacted natural soil (2), and the upper half part of the pile hole (1) is filled with compacted lime soil (3). In the prior art, the whole pile hole is filled with compacted lime soil to form a basic pile, and the used lime soil is more. As the price of lime in the lime soil is high, the construction cost is high. In the utility model, the lower half part of the pile hole is completely compacted by loess on site, only the upper half part of the pile hole adopts a lime soil structure formed by mixing two portions of lime and eight portions of silty clay, so the usage of lime is less, and the construction cost is greatly reduced under the condition for meeting the design requirements.
Description
Technical field
The utility model relates to a kind of strong rammer stake, particularly relates in a kind of Collapsible Loess District hole deep layer and rams stake by force, belongs to the foundation consolidating technology field of construction work.
Background technology
In the hole deep layer ram by force the stake be the foundation consolidating technology that on the strong tamping technology basis, develops, its construction is first pore-forming, filler in the hole again, dash and pound extruding with kinetic energy, the special weight of over pressure deep layer field in the hole, make filler pile body to hole week and bottom squeeze formation under the promotion of brute force.In Collapsible Loess District, usually see with deep layer Treatment by Dynamic Compaction collapsible loess right and wrong in the hole, in the hole in the hole of deep layer dynamic compaction filler generally adopt 2:8 dirt, when eliminating saturated yielding, can also significantly improve the bearing capacity of composite foundation like this.But when collapsible loess was too dark, a large amount of dirt fillers can strengthen engineering cost.
Summary of the invention
The purpose of this utility model is, provides in a kind of Collapsible Loess District hole deep layer to ram stake by force, reduces construction costs under situation about meeting design requirement greatly.
The technical solution of the utility model: deep layer is rammed stake by force in a kind of Collapsible Loess District hole, comprises the stake hole that is located at yellow soil horizon of collapsibility; The Lower Half in stake hole is filled with the plain soil of compacting, and the first half in stake hole is filled with the dirt of compacting.
Deep layer is rammed by force in the stake in the aforementioned Collapsible Loess District hole, and described plain soil is the on-the-spot loess that does not contain lime and sandstone that crude sedimentation forms.
Deep layer is rammed by force in the stake in the aforementioned Collapsible Loess District hole, and described dirt is 2 parts of lime and 8 parts of mixed uniformly composite soil structures of silty clay.
Compared with prior art, prior art all adopts dirt to fill the stake of compacting formation base in whole stake hole, and used dirt is more, because the lime price in the dirt is higher, so construction cost is also higher.Stake of the present utility model hole the latter half is all with on-the-spot loess compacting, only the first half in the stake hole adopts 2 parts of lime and 8 parts of grey soil structures that silty clay mixes, so the consumption of lime is less, under situation about meeting design requirement, reduce construction costs greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Being labeled as in the accompanying drawing: 1-stake hole, the plain soil of 2-, 3-dirt.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, but not as to any restriction of the present utility model.
Embodiment.
Structural representation of the present utility model as shown in Figure 1, deep layer is rammed stake by force in the Collapsible Loess District of the present utility model hole, comprise be located at yellow soil horizon of collapsibility the stake hole 1; The Lower Half in stake hole 1 is filled with the plain soil 2 of compacting, and the first half in stake hole 1 is filled with the dirt 3 of compacting.Described plain soil 2 is the on-the-spot loess that does not contain lime and sandstone that crude sedimentation forms.Described dirt 3 is 2 parts of lime and 8 parts of mixed uniformly composite soil structures of silty clay.
During concrete enforcement, earlier in yellow soil horizon of collapsibility piling hole 1, in stake hole 1, fill the plain soil of a part, then with the rammed earth of weight with filling, and then fill out some element soil 2 again with its compacting, until a half that is filled into a hole depth, in the stake hole 1 of yellow soil horizon of collapsibility, fill 2 parts of lime and 8 parts of dirt 3 that clay evenly mixes again.Adopt preceding method to continue the grey rammed earth that to fill with weight, until filling up whole stake hole 1.Constitute deep layer of the present utility model and ram stake by force.
Claims (2)
1. deep layer is rammed stake by force in the Collapsible Loess District hole, comprises the stake hole (1) that is located at yellow soil horizon of collapsibility; It is characterized in that: the Lower Half in stake hole (1) is filled with the plain soil (2) of compacting, and the first half in stake hole (1) is filled with the dirt (3) of compacting.
2. ram stake by force according to deep layer in the described Collapsible Loess District of claim 1 hole, it is characterized in that: described plain soil (2) is the on-the-spot loess that does not contain lime and sandstone that crude sedimentation forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206746412U CN201981530U (en) | 2010-12-22 | 2010-12-22 | Down hole deep dynamic compaction pile in collapsible loess area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206746412U CN201981530U (en) | 2010-12-22 | 2010-12-22 | Down hole deep dynamic compaction pile in collapsible loess area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201981530U true CN201981530U (en) | 2011-09-21 |
Family
ID=44608993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206746412U Expired - Fee Related CN201981530U (en) | 2010-12-22 | 2010-12-22 | Down hole deep dynamic compaction pile in collapsible loess area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201981530U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968235A (en) * | 2017-05-10 | 2017-07-21 | 广州市城市规划勘测设计研究院 | A kind of soil body encryption device and method |
| CN108708364A (en) * | 2018-06-06 | 2018-10-26 | 中国电建集团山东电力建设有限公司 | DDC pile foundation construction process |
-
2010
- 2010-12-22 CN CN2010206746412U patent/CN201981530U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968235A (en) * | 2017-05-10 | 2017-07-21 | 广州市城市规划勘测设计研究院 | A kind of soil body encryption device and method |
| CN106968235B (en) * | 2017-05-10 | 2018-10-26 | 广州市城市规划勘测设计研究院 | A kind of soil body encryption device and method |
| CN108708364A (en) * | 2018-06-06 | 2018-10-26 | 中国电建集团山东电力建设有限公司 | DDC pile foundation construction process |
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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: 20110921 Termination date: 20141222 |
|
| EXPY | Termination of patent right or utility model |