CN107268581A - A kind of method that lateral soil compaction discharging consolidation improves Squeezing Soil Pile pile foundation performance - Google Patents
A kind of method that lateral soil compaction discharging consolidation improves Squeezing Soil Pile pile foundation performance Download PDFInfo
- Publication number
- CN107268581A CN107268581A CN201710717904.XA CN201710717904A CN107268581A CN 107268581 A CN107268581 A CN 107268581A CN 201710717904 A CN201710717904 A CN 201710717904A CN 107268581 A CN107268581 A CN 107268581A
- Authority
- CN
- China
- Prior art keywords
- pile
- soil
- squeezing
- stake
- construction
- 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
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention relates to a kind of method for improving pile foundation performance, more particularly to a kind of method that lateral soil compaction discharging consolidation improves Squeezing Soil Pile pile foundation performance, this method is particularly suitable for use in the Squeezing Soil Pile in high-moisture percentage silt soft soil foundation, methods described is included in before soil extrusion in construction stake, the vertical drainage body of one or more is inserted in ground between Squeezing Soil Pile, soil compaction pile driving construction is carried out again, pile peripheral earth is carried out discharging consolidation by lateral compression using the soil compaction effect of stake.The method construction of the present invention is simple, low cost, high to pile foundation performance improvement effect.
Description
Technical field
Soil compaction is improved the present invention relates to a kind of method for improving pile foundation performance, more particularly to a kind of lateral soil compaction discharging consolidation
The method of stake pile foundation performance, this method is particularly suitable for use in the Squeezing Soil Pile in high-moisture percentage silt soft soil foundation.
Background technology
The earth-retaining or water retaining structure being built on soft soil foundation, such as retaining wall, sluice lock chamber, ship lock, guide wall,
Because the requirement of earth-retaining or dash is, it is necessary to subject larger horizontal direction load.To meet such earth-retaining or water-retaining structure
Against Sliding Stability requirement, generally requires and ground is handled.
Squeezing Soil Pile is a kind of conventional foundation treatment mode, including precast concrete pile, steel-pipe pile, driven cast-in-place pile
Deng.Squeezing Soil Pile refers in formation of pile, causes a large amount of soil compactions, a surrounding soil is seriously perturbed, native engineering properties
There is the stake of very big change, soil compaction effect caused by soil compaction process is mainly land upheaval and lateral soil movement, caused to surrounding enviroment
Influence is larger.The stake referred to as Squeezing Soil Pile of this pile making method and such a soil compaction effect produced in formation of pile.
This foundation treatment mode of Squeezing Soil Pile has advantage, but existed when being used in high-moisture percentage silt soft soil foundation with
Under defect：
(1) all foundation soil body Lateral Resistances of stake are influence key factor of the stake level to bearing capacity, and high-moisture percentage mud
The soil body Lateral Resistance index of weak soil is low, causes the level of stake small to bearing capacity；
(2) soil compaction effect in formation of pile may cause the quality accidents such as bored concrete pile broken pile, necking down, for concrete
Native stake or steel-pipe pile may cause pile body to float, and reduce bearing capacity, and increase sedimentation etc. is negatively affected.Therefore, in order to avoid above-mentioned
Negative effect, in high-moisture percentage silt soft soil foundation, when using Squeezing Soil Pile, usual pile center is away from not less than 4~4.5 times stakes
Body diameter.But, when needing to arrange greater number of stake in earth-retaining or water retaining structure foundation, for meet pile center away from
Requirement, basic plane can be caused larger, causing basis to take up an area, scope is big, excavated volume big, high cost shortcoming；
(3) because high-moisture percentage silt soft soil foundation permeability is small, consolidation is slow, and the consolidation after construction may cause building
Thing basis and soil body void, consolidation produce the unfavorable phenomenons such as the force of negative friction to pile foundation.
Therefore, the negative drawbacks existed for Squeezing Soil Pile when high-moisture percentage silt soft soil foundation is used, in the urgent need to seeking
A kind of solution is sought, improves Squeezing Soil Pile pile foundation performance, drawbacks described above is overcome, construction costs is reduced.
The content of the invention
It is not enough for more than, it is of the invention according to Squeezing Soil Pile pile feature and high-moisture percentage sludge soft physics classroom teaching,
The negative drawbacks existed when high-moisture percentage silt soft soil foundation is used for Squeezing Soil Pile are there is provided one kind construction is simple, low cost,
To improving pile foundation level to bearing capacity, the minimum pile center of reduction pile foundation away from requiring, reduce the pile foundations such as the pile peripheral earth force of negative friction
The high method of effect can be improved.
The present invention reaches above-mentioned purpose by following scheme：
A kind of method that lateral soil compaction discharging consolidation improves Squeezing Soil Pile pile foundation performance, methods described is included in soil extrusion in construction stake
Before, the vertical drainage body of one or more is inserted in the ground between Squeezing Soil Pile, then carries out soil compaction pile driving construction.
It is preferred that, the vertical drainage body can have the structure of high permeability using plastic draining board or sand-gravel pile etc..
It is preferred that, every vertical drainage body is apart from Squeezing Soil Pile within 1.2m.
It is preferred that, the quantity of vertical drainage body is inserted in the ground between two Squeezing Soil Piles for one or more, distance
Squeezing Soil Pile is within 1.2m.
It is further preferred that the quantity of insertion vertical drainage body is two in ground between two Squeezing Soil Piles.
It is further preferred that the quantity of insertion vertical drainage body is two in ground between two Squeezing Soil Piles, often
Bar vertical drainage body is apart from Squeezing Soil Pile within 1.2m.
In a preferred embodiment, methods described is included in before soil extrusion in construction stake, the ground between Squeezing Soil Pile
The middle insertion vertical drainage body formation drainage channel of one or more, then soil compaction pile driving construction is carried out, make stake using the soil compaction effect of stake
Zhou Tuti is carried out discharging consolidation by lateral compression.
It is preferred that, methods described can improve pile peripheral earth mechanics index of physics, and such as internal friction angle, cohesive strength can be improved
20%~30%, so as to reach raising pile foundation performance, the level of stake can be improved to bearing capacity up to 25%~35%, most paxilla is reduced
Centre-to-centre spacing requires 1~1.5 times of pile body diameter.
The present invention is innovatively that before soil extrusion in construction stake, vertical drainage body formation row is inserted in the ground between Squeezing Soil Pile
Aquaporin；Then, in soil extrusion in construction stake, using the soil compaction effect of stake, the soil body in stake week is made to be carried out draining by lateral compression
Consolidation.Experiment is confirmed, by the method for the present invention, pile peripheral earth mechanics index of physics can be improved, so as to preferably improve pile foundation
Performance.
The inventive method is particularly suitable for use in the Squeezing Soil Pile in high-moisture percentage silt soft soil foundation.
The beneficial effects of the present invention are：
(1) because pile peripheral earth obtains discharging consolidation, soil body Lateral Resistance increase, so that the level of stake increases to bearing capacity
Greatly；
(2) due to the presence of drainage channel, during pile driving construction, the pore water in high saturation weak soil can obtain effective row
Water, can reduce the negative effect of the soil compaction effect in formation of pile, so as to reduce pilespacing, reduce basic plane size；
(3) because all weak soils of stake are consolidated in construction, building basis and the possibility of soil body void subtract after construction
Few, pile peripheral earth consolidation is reduced to the force of negative friction that pile foundation is produced after construction.The method construction of the present invention is simple, low cost, right
Pile foundation performance improvement effect is high.
Brief description of the drawings
Fig. 1 is the top view of Squeezing Soil Pile and vertical drainage body in the specific embodiment of the invention；
Fig. 2 is the side view of Squeezing Soil Pile and vertical drainage body in the specific embodiment of the invention；
In figure, 1- Squeezing Soil Piles, 2- vertical drainage bodies.
Embodiment
The present invention is further described below in conjunction with specific embodiment.
After levelling of the land, before soil extrusion in construction stake, vertical drainage body 2 is inserted in the ground between Squeezing Soil Pile 1, for example, is arranged
Water plate, forms drainage channel；Then, then in soil extrusion in construction stake.During soil extrusion in construction stake, due to the soil compaction effect of stake, make stake week
The soil body by lateral compression utilize vertical drainage body carry out discharging consolidation, improve pile peripheral earth mechanics index of physics, so as to reach
To raising pile foundation performance.
As shown in Figures 1 and 2, two vertical drainage bodies 2, vertical drainage body 2 are respectively set between every two Squeezing Soil Piles 1
Distance apart from Squeezing Soil Pile 1 is 1 meter, and can admirably achieve makes the soil body in stake week be entered by lateral compression using vertical drainage body
Row discharging consolidation, improves pile peripheral earth mechanics index of physics to reach the purpose of raising pile foundation performance.
Through experiment, the level that can improve stake using this method saves engineering pile foundation investment to bearing capacity up to 25%~35%
About 20%~30%.
It is described above, it is only the preferably specific embodiment of the present invention, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Design is subject to equivalent substitution or change, should all cover within the scope of the present invention.
Claims (7)
1. a kind of method that lateral soil compaction discharging consolidation improves Squeezing Soil Pile pile foundation performance, it is characterised in that methods described is included in
Before soil extrusion in construction stake, the vertical drainage body of one or more is inserted in the ground between Squeezing Soil Pile, then carry out soil compaction pile driving construction.
2. according to the method described in claim 1, it is characterised in that methods described is included in before soil extrusion in construction stake, in soil compaction
The vertical drainage body formation drainage channel of one or more is inserted in ground between stake, then carries out soil compaction pile driving construction, stake is utilized
Soil compaction effect makes pile peripheral earth be carried out discharging consolidation by lateral compression.
3. method according to claim 1 or 2, it is characterised in that the vertical drainage body is drain bar or sand-gravel pile.
4. according to any described method in claims 1 to 3, it is characterised in that every vertical drainage body exists apart from Squeezing Soil Pile
1.2m within.
5. method according to claim 4, it is characterised in that vertical row is inserted in the ground between two Squeezing Soil Piles
The quantity of water body is one or more, apart from Squeezing Soil Pile within 1.2m.
6. method according to claim 5, it is characterised in that vertical row is inserted in the ground between two Squeezing Soil Piles
The quantity of water body is two, and every vertical drainage body is apart from Squeezing Soil Pile within 1.2m.
7. according to any described method in claim 1 to 6, it is characterised in that methods described can improve pile peripheral earth physics
Mechanical index, so as to improve pile foundation performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710717904.XA CN107268581A (en) | 2017-08-21 | 2017-08-21 | A kind of method that lateral soil compaction discharging consolidation improves Squeezing Soil Pile pile foundation performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710717904.XA CN107268581A (en) | 2017-08-21 | 2017-08-21 | A kind of method that lateral soil compaction discharging consolidation improves Squeezing Soil Pile pile foundation performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107268581A true CN107268581A (en) | 2017-10-20 |
Family
ID=60080526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710717904.XA Pending CN107268581A (en) | 2017-08-21 | 2017-08-21 | A kind of method that lateral soil compaction discharging consolidation improves Squeezing Soil Pile pile foundation performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107268581A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371954A (en) * | 2018-10-25 | 2019-02-22 | 广西建工集团基础建设有限公司 | A kind of construction method of PHC tubular pole consolidation draining system in soft soil foundation |
| CN109778833A (en) * | 2019-03-13 | 2019-05-21 | 秦山伟业建设集团有限公司 | A kind of seabeach of enclosing of jackstone in conjunction with flexiplast drain bar applies roadbed construction method |
| CN113494041A (en) * | 2021-07-27 | 2021-10-12 | 中国建筑土木建设有限公司 | Construction device and construction method for building temporary sidewalk on sludge terrain |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000054061A (en) * | 2000-05-19 | 2000-09-05 | 임철웅 | An early stage improved construction method using of used tires and a wick drain thereof |
-
2017
- 2017-08-21 CN CN201710717904.XA patent/CN107268581A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000054061A (en) * | 2000-05-19 | 2000-09-05 | 임철웅 | An early stage improved construction method using of used tires and a wick drain thereof |
Non-Patent Citations (1)
| Title |
|---|
| 孙修礼: ""挤土桩对工程环境的影响及防治措施"", 《岩土工程界》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371954A (en) * | 2018-10-25 | 2019-02-22 | 广西建工集团基础建设有限公司 | A kind of construction method of PHC tubular pole consolidation draining system in soft soil foundation |
| CN109778833A (en) * | 2019-03-13 | 2019-05-21 | 秦山伟业建设集团有限公司 | A kind of seabeach of enclosing of jackstone in conjunction with flexiplast drain bar applies roadbed construction method |
| CN113494041A (en) * | 2021-07-27 | 2021-10-12 | 中国建筑土木建设有限公司 | Construction device and construction method for building temporary sidewalk on sludge terrain |
| CN113494041B (en) * | 2021-07-27 | 2022-06-17 | 中国建筑土木建设有限公司 | Construction device and construction method for building temporary sidewalk on sludge terrain |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102926376B (en) | One is reclaimed fields from the sea region soft-soil foundation treatment method | |
| CN207032267U (en) | A kind of Geotechnical Engineering slope seepage control water-bound | |
| CN107268581A (en) | A kind of method that lateral soil compaction discharging consolidation improves Squeezing Soil Pile pile foundation performance | |
| CN105220674A (en) | Deep soft foundation reinforcing and processing method | |
| CN101806055B (en) | Vacuum pre-pressed joint rigid pile composite foundation reinforcing method | |
| CN207092159U (en) | A kind of swelled ground area basement building float Structure | |
| CN107587516A (en) | A kind of efficient sealing of Follow-up type hinders sand precipitation hybrid system and its construction method | |
| CN104060601B (en) | The construction method of utilizing precast construction stake pile foundation to carry out ground processing | |
| CN103215945B (en) | The three-dimensional assembly power drain consolidation system of heterogeneous body place soft soil foundation and method | |
| CN108797558B (en) | Soft soil foundation treatment method by controlling secondary consolidation settlement | |
| CN104264653A (en) | Superhigh energy level dynamic compaction and replacement compatible construction process | |
| CN215669631U (en) | Deep overburden foundation structure | |
| CN106337430A (en) | Underwater composite foundation reinforcement treatment method | |
| CN205501983U (en) | Decompression drainage tubular pile | |
| CN208803456U (en) | A kind of structure for reinforcing peat soil using sand pile and drain bar | |
| CN105804046A (en) | Processing method for soft clay foundation | |
| Endicott | Drained reclamation in Hong Kong | |
| CN213233510U (en) | Simple combined steel plate cofferdam structure for preventing and treating quicksand | |
| CN204551160U (en) | The formula that the bonds prepressing water discharge consolidation system of blast-filled ground ribbon roadbed | |
| CN104141295B (en) | Soft soil foundation compounding method | |
| CN106284291A (en) | The plug in draining board precipitation piling prepressing soft base processing method of steel cylinder structure sealing | |
| CN206570788U (en) | A kind of soft soil base sedimentation control system | |
| CN205501991U (en) | Prevent blockking up multi -functional precast tubular pile | |
| CN216275613U (en) | Composite foundation treatment structure suitable for soft soil | |
| CN105544332B (en) | A kind of processing structure and its construction method of coastal soft base |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171020 |
|
| RJ01 | Rejection of invention patent application after publication |