CN108265693A - A kind of soft soil foundation reinforcing method - Google Patents
A kind of soft soil foundation reinforcing method Download PDFInfo
- Publication number
- CN108265693A CN108265693A CN201810018307.2A CN201810018307A CN108265693A CN 108265693 A CN108265693 A CN 108265693A CN 201810018307 A CN201810018307 A CN 201810018307A CN 108265693 A CN108265693 A CN 108265693A
- Authority
- CN
- China
- Prior art keywords
- pile
- anchor pole
- mixing pile
- reinforcing method
- soft soil
- 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.)
- Withdrawn
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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
-
- 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
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
Abstract
The present invention provides a kind of soft soil foundation reinforcing method, specifically includes following steps：（1）Place is flattened, divides region, determines the number and position distribution of mixing pile and anchor pole；（2）Setting anchor pole gos deep into ground, can be used as drainage channel；（3）It is compacted place repeatedly using forcing press；（4）After draining stabilization, mixing pile, and the slip casting in anchor pole are squeezed into.The present invention can form solid netted slurry arteries and veins skeleton in ground, and can reduce the number of mixing pile, and processing cost is low, and effect is steady significantly and stable, has preferable economic benefit.
Description
Technical field
The present invention relates to field of civil engineering, and in particular to a kind of soft soil foundation reinforcing method.
Background technology
To improve the bearing capacity of foundation soil, reduction is built（Structure）The settlement of foundation or soil body permeability of object are built, is needed to ground
Soil is handled.Common Soft Ground mainly has piling prepressing, vacuum preloading, heavy-tamping method, deep mixing method at present
Deng, but have the defects of respective, such as drainage speed is slow, the soil solidifying time is long or quantities is big, somewhat expensive.
Invention content
To overcome the shortcomings of existing Soft Ground, the present invention provides a kind of soft soil foundation reinforcing method, is directed to mesh
Preceding quantities is big, somewhat expensive, the inapparent situation of effect propose.
For technical purpose more than realization, the present invention uses following technical scheme：A kind of soft soil foundation reinforcing method, packet
Include following steps：
（1）Place is flattened, divides region, determines the number and position distribution of mixing pile and anchor pole so that the anchor pole surrounds institute
It states and is set around mixing pile；
（2）Setting anchor pole gos deep into ground, and ground is inserted into as drainage channel, and by mixing pile；
（3）It is compacted place；
（4）After draining stabilization, it is stirred pile driving construction, while the slip casting into mixing pile and anchor pole；
Wherein, the shaft of the anchor pole is equipped with micro- seepage hole, forms netted slurry skeleton during slip casting in the soil body into anchor pole.
Further, step（1）In, 4 ~ 8 anchor poles are arranged around 1 mixing pile.
Further, above-mentioned steps（3）It is middle that place is compacted using forcing press repeatedly.
Further, the mixing pile includes pile body and the pile top set on pile body bottom end, forms the side of enlarged footing mixing pile
Method to insert plain soil and/or building waste into mixing pile so that pile top is detached from pile body lower face and moves down, part element soil and/
Or building waste is overflowed from pile body lower end, and forms enlarged footing in pile body lower end.
Further, step（3）Middle slip casting specifically uses fracture grouting, osmotic grouting or compaction grouting.
Further, drainage situation must be monitored by Field Force, it is ensured that draining can carry out next stage after stablizing
Construction.
Further, multiple micro- seepage holes are distributed in the rock bolt shank.
The invention has the advantages that：Mixing pile number is substituted using speciality bolt portion, can be formed in ground
Solid netted slurry arteries and veins skeleton, and can reduce the number of mixing pile, and foundation stabilization effect is good, and processing cost is low, significant effect and steady
It is fixed, there is preferable economic benefit.
Description of the drawings
Fig. 1 is the schematic diagram of anchor pole and mixing pile of the present invention.
Fig. 2 is the position distribution exemplary plot of mixing pile and anchor pole of the present invention.
In figure：1-mixing pile；2-anchor pole；3-micro- seepage hole；4-enlarged footing.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, a kind of soft soil foundation reinforcing method of the present invention, includes the following steps：
（1）Place is flattened, divides region, determines the number and position distribution of mixing pile 1 and anchor pole 2 so that the anchor pole surrounds
It is set around the mixing pile；
（2）Setting anchor pole 2 gos deep into ground, and ground is inserted into as drainage channel, and by mixing pile；
（3）It is compacted place；
（4）After draining stabilization, it is stirred pile driving construction, while the slip casting into mixing pile and anchor pole；
Wherein, the shaft of the anchor pole 2 is equipped with micro- seepage hole 3, forms netted slurry skeleton during slip casting in the soil body into anchor pole.It stirs
Pile driving construction is mixed to carry out using prior art.
Above-mentioned steps（3）It is middle to be compacted place repeatedly using forcing press.
As shown in Figure 1, the mixing pile is made of pile body and pile top, plain soil and/or building waste are inserted into mixing pile
When the pile top is enabled to be detached from pile body lower face move down to form enlarged footing 4.Formed enlarged footing 4 concrete mode be：
Plain soil and/or building waste are inserted into mixing pile, compaction rod is put into mixing pile and is pressed on plain soil, with vibration dip pile pulling
The fixture clamping compaction rod of machine, vibrates to plain soil and/or building waste, improves the compactness of element soil and/or building waste,
And pile top is made to be detached from pile body lower face and is moved down, part element soil and/or building waste are overflowed from pile body lower end and under pile body
End forms enlarged footing.
Step（3）Middle slip casting specifically uses fracture grouting, osmotic grouting or compaction grouting, it is ensured that the effect of slip casting.
Drainage situation must be monitored by Field Force, it is ensured that draining can carry out next stage construction after stablizing.
As shown in Figure 1, multiple micro- seepage holes 3 are distributed in 2 shaft of anchor pole, anchor pole bottom end is closely knit steel.
To ensure that ground reaches correlation intensity standard, the number and distribution of the mixing pile and anchor pole are true regarding ground situation
It is fixed.For example, as shown in Fig. 2, empirically, according to on-site actual situations, nearby there can be 4 ~ 8 speciality anchor poles by 1 mixing pile
Arrangement.
The present invention can form solid netted slurry arteries and veins skeleton in ground, and can reduce the number of mixing pile, and processing cost is low,
Significant effect and stabilization have preferable economic benefit.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail, those of ordinary skills in the art should understand that：To the present invention specific embodiment modify or
Equivalent replacement is carried out to some technical characteristics, without departing from the spirit of technical solution of the present invention, should all cover please in the present invention
It asks in the technical solution range of protection.
Claims (8)
1. a kind of soft soil foundation reinforcing method, which is characterized in that it includes the following steps：
（1）Place is flattened, divides region, determines the number and position distribution of mixing pile and anchor pole so that the anchor pole surrounds institute
It states and is set around mixing pile；
（2）Setting anchor pole gos deep into ground, and ground is inserted into as drainage channel, and by mixing pile；
（3）It is compacted place；
（4）After draining stabilization, it is stirred pile driving construction, while the slip casting into mixing pile and anchor pole；
Wherein, the shaft of the anchor pole is equipped with micro- seepage hole, forms netted slurry skeleton during slip casting in the soil body into anchor pole.
2. soft soil foundation reinforcing method according to claim 1, which is characterized in that step（1）In, around 1 mixing pile
Arrange 4 ~ 8 anchor poles.
3. soft soil foundation reinforcing method according to claim 1, which is characterized in that above-mentioned steps（3）It is middle to use forcing press
It is compacted place repeatedly.
4. soft soil foundation reinforcing method according to claim 1, which is characterized in that the mixing pile is stirred for enlarged footing
Stake.
5. soft soil foundation reinforcing method according to claim 4, which is characterized in that the mixing pile includes pile body and is set on
The pile top of pile body bottom end, the method for forming enlarged footing mixing pile cause stake to insert plain soil and/or building waste into mixing pile
Point is detached from pile body lower face and moves down, and part element soil and/or building waste overflow, and formed in pile body lower end from pile body lower end
Enlarged footing.
6. soft soil foundation reinforcing method according to claim 1, which is characterized in that step（4）Middle slip casting is specifically used and is split
Split slip casting, osmotic grouting or compaction grouting.
7. soft soil foundation reinforcing method according to claim 1, which is characterized in that drainage situation must be carried out by Field Force
Monitoring, it is ensured that draining can carry out next stage construction after stablizing.
8. soft soil foundation reinforcing method according to claim 1, which is characterized in that multiple micro- seepage holes are distributed in the anchor pole
Shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810018307.2A CN108265693A (en) | 2018-01-09 | 2018-01-09 | A kind of soft soil foundation reinforcing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810018307.2A CN108265693A (en) | 2018-01-09 | 2018-01-09 | A kind of soft soil foundation reinforcing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108265693A true CN108265693A (en) | 2018-07-10 |
Family
ID=62773287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810018307.2A Withdrawn CN108265693A (en) | 2018-01-09 | 2018-01-09 | A kind of soft soil foundation reinforcing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108265693A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58127822A (en) * | 1982-01-25 | 1983-07-30 | Takechi Koumushiyo:Kk | Liquefaction preventive structure of foundation ground |
| JPH10237856A (en) * | 1997-02-27 | 1998-09-08 | Shimizu Corp | Construction mehtod for soil improvement using both pile and sand compaction pile |
| CN101634143A (en) * | 2009-08-27 | 2010-01-27 | 中冶建筑研究总院有限公司 | Method for treating spiral oil-extruding filling pile composite foundation in stratum containing soft clay |
| CN102839647A (en) * | 2012-09-19 | 2012-12-26 | 山东大学 | Stirring pile-permeable concrete pile compound foundation and treatment method thereof |
| CN204059124U (en) * | 2014-08-06 | 2014-12-31 | 冠鲁建设股份有限公司 | A kind of sand drain strong rammer grouting behind shaft or drift lining foundation reinforcing structure |
| CN105926595A (en) * | 2016-04-21 | 2016-09-07 | 化学工业岩土工程有限公司 | Construction method for rammed and reamed pre-stressed hollow pipe pile |
| CN104947650B (en) * | 2014-03-28 | 2016-09-28 | 中国二十冶集团有限公司 | Grouting behind shaft or drift lining closed reinforcing method after sand drain piling prepressing |
| CN106436684A (en) * | 2016-11-21 | 2017-02-22 | 中铁上海设计院集团有限公司 | Water drainage reinforcing device for prepressing treatment of deep soft soil roadbed and application method of water drainage reinforcing device |
-
2018
- 2018-01-09 CN CN201810018307.2A patent/CN108265693A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58127822A (en) * | 1982-01-25 | 1983-07-30 | Takechi Koumushiyo:Kk | Liquefaction preventive structure of foundation ground |
| JPH10237856A (en) * | 1997-02-27 | 1998-09-08 | Shimizu Corp | Construction mehtod for soil improvement using both pile and sand compaction pile |
| CN101634143A (en) * | 2009-08-27 | 2010-01-27 | 中冶建筑研究总院有限公司 | Method for treating spiral oil-extruding filling pile composite foundation in stratum containing soft clay |
| CN102839647A (en) * | 2012-09-19 | 2012-12-26 | 山东大学 | Stirring pile-permeable concrete pile compound foundation and treatment method thereof |
| CN104947650B (en) * | 2014-03-28 | 2016-09-28 | 中国二十冶集团有限公司 | Grouting behind shaft or drift lining closed reinforcing method after sand drain piling prepressing |
| CN204059124U (en) * | 2014-08-06 | 2014-12-31 | 冠鲁建设股份有限公司 | A kind of sand drain strong rammer grouting behind shaft or drift lining foundation reinforcing structure |
| CN105926595A (en) * | 2016-04-21 | 2016-09-07 | 化学工业岩土工程有限公司 | Construction method for rammed and reamed pre-stressed hollow pipe pile |
| CN106436684A (en) * | 2016-11-21 | 2017-02-22 | 中铁上海设计院集团有限公司 | Water drainage reinforcing device for prepressing treatment of deep soft soil roadbed and application method of water drainage reinforcing device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180710 |