CN110206014A - Fill out sand tube stake Bridgehead by Blastig reinforced construction method and its structure - Google Patents
Fill out sand tube stake Bridgehead by Blastig reinforced construction method and its structure Download PDFInfo
- Publication number
- CN110206014A CN110206014A CN201910239362.9A CN201910239362A CN110206014A CN 110206014 A CN110206014 A CN 110206014A CN 201910239362 A CN201910239362 A CN 201910239362A CN 110206014 A CN110206014 A CN 110206014A
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- Prior art keywords
- pile
- prefabricated tubular
- sand
- outer diameter
- caulking groove
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Classifications
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- 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
- E02D3/106—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains by forming sand drains containing only loose aggregates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/72—Pile shoes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/20—Placing by pressure or pulling power
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of fill out sand tube stake Bridgehead by Blastig reinforced construction method and its structures.When construction, comprising: (1) after soft soil roadbed determining pile sinking point, place back-up sand steel pile casting；(2) there is the prefabricated tubular pile of opening pile toe to hang to pile sinking point stake end, pile top is pressed by weak soil using pile press machine, until pile top is completely forced into weak soil；Wherein: the outer diameter of opening pile toe is greater than the outer diameter of prefabricated tubular pile, and opening pile toe sinks to soft soil roadbed formation counterbore；(3) dry crude sand is poured into back-up sand steel pile casting；(4) continue pile sinking operation, by the frictional force of dry crude sand in prefabricated tubular pile pile body and back-up sand steel pile casting, dry crude sand is inserted in the gap between prefabricated tubular pile pile body and counterbore hole wall, up to pile sinking to predetermined depth.Therefore, the present invention inserts dry sand in gap, forms drainage channel, to accelerate the dissipation of the excess pore water pressure of pile sinking generation, accelerates the consolidation of foundation soil, is substantially reduced settlement after construction, improve consolidation process effect.
Description
Technical field
The present invention relates to a kind of fill out sand tube stake Bridgehead by Blastig reinforced construction method and its structures.
Background technique
The coastal region in east China is economically developed, and expressway construction is in urgent need.Due to this area be generally distributed with it is deep soft
Soil layer, soil body void ratio is big, water content is high, intensity is low and compressibility is high, and post-construction settlement of subgrade is larger, especially connects in road and bridge
Place leads to bumping at bridge-head, pavement cracking since road and bridge relative settlement is big, seriously affects traffic safety.Therefore, it selects
Suitable mode carries out consolidation process to Bridgehead by Blastig and is of great significance.Currently, being beaten in many subgrade strengthening processing methods
If the rigid pile composite foundation effect that prefabricated tubular pile is formed is the most significant.To such composite foundation, upper load mainly by answering in advance
Solenoid stake is shared, and it is less that inter-pile soil shares load, therefore its bearing capacity is higher and settling amount can control well.But due to beating
Soil compaction effect during stake, the soil body near pile body generates excess pore water pressure and is difficult to dissipate, to influence stake
The consolidation of all soil, it is unfavorable to the development of performance and the sedimentation of its bearing capacity, cause settlement amount after construction excessive.
Summary of the invention
To alleviate, super quiet pore pressure existing for existing rigid pile Bridgehead by Blastig consolidation process is difficult to dissipate and settlement after construction is excessive
The problem of, the invention proposes a kind of fill out sand tube stake Bridgehead by Blastig consolidation process technologies.It is greater than outside tubular pole in stake end weld size
The pile top of diameter forms the gap between pile body and surrounding soil, dry sand is inserted in gap, it is logical to form draining during piling
Accelerate the consolidation of foundation soil to accelerate the dissipation of the excess pore water pressure of pile sinking generation, be substantially reduced settlement after construction, mention in road
High consolidation process effect.
To realize that above-mentioned technical purpose, the present invention will take the following technical solution:
A kind of fill out sand tube stake Bridgehead by Blastig reinforced construction method, comprising the following steps:
(1) after soft soil roadbed determining pile sinking point, back-up sand steel pile casting is placed；
(2) there is the prefabricated tubular pile of opening pile toe to hang to pile sinking point stake end, pile top be pressed by weak soil using pile press machine,
Until pile top is completely forced into weak soil；Wherein: the outer diameter of opening pile toe is greater than the outer diameter of prefabricated tubular pile, and opening pile toe sinks to weak soil
Roadbed forms counterbore；
(3) dry crude sand is poured into back-up sand steel pile casting；
(4) continue pile sinking operation, by the frictional force of dry crude sand in prefabricated tubular pile pile body and back-up sand steel pile casting, will do
Coarse sand is inserted in the gap between prefabricated tubular pile pile body and counterbore hole wall, up to pile sinking to predetermined depth；
(5) after being completed to the equal pile sinking in full wafer place, pile cover is first set, one layer of mattress layer is then re-layed.
As the further improvement of above-mentioned fill out sand tube stake Bridgehead by Blastig reinforced construction method, the stake end of the prefabricated tubular pile is logical
Nested mode is crossed to connect with pile top.
As the further improvement of above-mentioned fill out sand tube stake Bridgehead by Blastig reinforced construction method, the top of the pile top has ring
Shape caulking groove；The internal diameter of annular caulking groove and the outer diameter of prefabricated tubular pile are suitable, and the outer diameter of annular caulking groove is greater than the outer diameter of prefabricated tubular pile, and
The outer wall of annular caulking groove has cutting edge；The stake end of prefabricated tubular pile is nested in annular caulking groove.
Another technical object of the present invention is to provide a kind of fill out sand tube stake Bridgehead by Blastig ruggedized construction, including it is counterbore, prefabricated
Tubular pole, pile cover and mattress layer；The stake end of prefabricated tubular pile has opening pile toe, and the outer diameter of opening pile toe is greater than the outer of prefabricated tubular pile
Diameter, while opening pile toe forms tip by opening up cutting edge in outer wall；Counterbore sinks to pile sinking point by opening pile toe and is formed；In advance
There is dry crude sand between the pile body of tubulation stake and the hole wall of counterbore.
As the further improvement of above-mentioned fill out sand tube stake Bridgehead by Blastig ruggedized construction, the top of the pile top has annular embedding
Slot；The internal diameter of annular caulking groove and the outer diameter of prefabricated tubular pile are suitable, and the outer diameter of annular caulking groove is greater than the outer diameter of prefabricated tubular pile, and annular
The outer wall of caulking groove has cutting edge；The stake end of prefabricated tubular pile is nested in annular caulking groove.
As the further improvement of above-mentioned fill out sand tube stake Bridgehead by Blastig ruggedized construction, the stake end of prefabricated tubular pile and annular caulking groove
Between be welded and fixed.
According to above-mentioned technical solution, compared with the existing technology, the present invention has the advantage that:
The present invention fills coarse sand in stake week, on the one hand can be improved the side friction of stake, is on the other hand capable of forming draining
Channel accelerates the dissipation of excess pore water pressure and the consolidation of soil around pile, is substantially reduced settlement after construction.
Detailed description of the invention
Fig. 1 is a kind of back-up sand tubular pole pile sinking sectional view.
Fig. 2 is a kind of fill out sand tube stake Bridgehead by Blastig consolidation process effect sectional view.
In figure: prefabricated tubular pile 1, opening pile toe 2, back-up sand steel pile casting 3, coarse sand 4, weak soil 5, pile cover 6, mattress layer 7, embankment are filled out
Soil 8.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, shall fall within the protection scope of the present invention.Unless specifically stated otherwise, otherwise at these
The positioned opposite of component and step described in embodiment, expression formula and numerical value do not limit the scope of the invention.Meanwhile it should be bright
White, for ease of description, the size of various pieces shown in attached drawing is not to draw according to actual proportionate relationship.It is right
The technology known to person of ordinary skill in the relevant, method and apparatus may be not discussed in detail, but in the appropriate case, institute
Stating technology, method and apparatus should be considered as authorizing part of specification.In shown here and discussion all examples, appoint
What occurrence should be construed as merely illustratively, not as limitation.Therefore, the other examples of exemplary embodiment can
With different values.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation).
The invention discloses a kind of fill out sand tube stake Bridgehead by Blastig reinforced construction methods, comprising the following steps:
(1) after soft soil roadbed determining pile sinking point, back-up sand steel pile casting 3 is placed；
(2) there is the prefabricated tubular pile 1 of opening pile toe 2 to hang to pile sinking point stake end, is pressed into pile top using pile press machine soft
Soil 5, until pile top is completely forced into weak soil 5；Wherein: the outer diameter of opening pile toe 2 is greater than the outer diameter of prefabricated tubular pile 1, opening pile toe 2
Sink to soft soil roadbed formation counterbore；
(3) dry crude sand 4 is poured into back-up sand steel pile casting 3；
(4) continue pile sinking operation, by the frictional force of dry crude sand 4 in 1 pile body of prefabricated tubular pile and back-up sand steel pile casting 3,
Dry crude sand 4 is inserted in the gap between 1 pile body of prefabricated tubular pile and counterbore hole wall, up to pile sinking to predetermined depth；
(4) after being completed to the equal pile sinking in full wafer place, pile cover 6 is first set, one layer of mattress layer 7 is then re-layed.
The invention also discloses a kind of fill out sand tube stake Bridgehead by Blastig ruggedized construction, including counterbore, prefabricated tubular pile 1, pile cover 6 and
Mattress layer 7；The stake end of prefabricated tubular pile 1 has opening pile toe 2, and the outer diameter of opening pile toe 2 is greater than the outer diameter of prefabricated tubular pile 1, together
When opening pile toe 2 by outer wall open up cutting edge formed tip；Counterbore sinks to pile sinking point by opening pile toe 2 and is formed；It is prefabricated
There is dry crude sand 4 between the pile body of tubular pole 1 and the hole wall of counterbore.
As the further improvement of above-mentioned fill out sand tube stake Bridgehead by Blastig ruggedized construction, the top of the pile top has annular embedding
Slot；The internal diameter of annular caulking groove is suitable with the outer diameter of prefabricated tubular pile 1, and the outer diameter of annular caulking groove is greater than the outer diameter of prefabricated tubular pile 1, and ring
The outer wall of shape caulking groove has cutting edge；The stake end of prefabricated tubular pile 1 is nested in annular caulking groove.
As the further improvement of above-mentioned fill out sand tube stake Bridgehead by Blastig ruggedized construction, the stake end of prefabricated tubular pile 1 and annular are embedding
It is welded and fixed between slot.
1 end of prefabricated tubular pile of the present invention is welded with opening pile toe 2, and pile top top is annular caulking groove, annular caulking groove internal diameter with
1 outer diameter of prefabricated tubular pile is suitable, and outer diameter is then greater than 1 outer diameter of prefabricated tubular pile, to keep prefabricated tubular pile 1 nested wherein；Pile top lower part
Internal diameter it is suitable with 1 internal diameter of prefabricated tubular pile, outside is provided with cutting edge, in order to pile sinking.Since the size on pile top top is greater than tubular pole
Outer diameter can generate gap in pile driving process between pile body and surrounding soil, and it is logical to form draining that dry crude sand 4 is inserted in gap
Road, the excess pore water pressure rapid dispersion generated convenient for pile sinking.When construction, it is first determined simultaneously place back-up sand steel shield in pile sinking position
Cylinder 3, the pile top for being provided with cutting edge is welded on the stake end of prefabricated tubular pile 1；Then, pile top is pressed into soil with pile press machine, it is past heavy
Dry crude sand 4 is poured into sand steel pile casting, is continued pile sinking operation, dry crude sand 4 is filled in stake week gap by pile body frictional force, directly
Back-up sand amount is monitored, and compare with back-up sand amount is estimated, it is ensured that back-up sand effect in the process to pile sinking to predetermined depth；Finally,
After being completed to full wafer place pile sinking, pile cover 6 is set and is laid with certain thickness mattress layer 7.Subgrade strengthening work is completed, and one
After the section time, filling for embankment filled soil 8 can be carried out.
Pipe pile week is filled with coarse sand, and in order to the excess pore water pressure rapid dispersion that pile sinking generates, and it is logical to form draining
Road reduces settlement after construction to accelerate the consolidation of pile peripheral earth.
Claims (6)
1. a kind of fill out sand tube stake Bridgehead by Blastig reinforced construction method, which comprises the following steps:
(1) after soft soil roadbed determining pile sinking point, back-up sand steel pile casting is placed；
(2) there is the prefabricated tubular pile of opening pile toe to hang to pile sinking point stake end, pile top is pressed by weak soil using pile press machine, until
Pile top is completely forced into weak soil；Wherein: the outer diameter of opening pile toe is greater than the outer diameter of prefabricated tubular pile, and opening pile toe sinks to soft soil roadbed
Form counterbore；
(3) dry crude sand is poured into back-up sand steel pile casting；
(4) continue pile sinking operation, by the frictional force of dry crude sand in prefabricated tubular pile pile body and back-up sand steel pile casting, by dry crude sand
It inserts in the gap between prefabricated tubular pile pile body and counterbore hole wall, up to pile sinking to predetermined depth；
(5) after being completed to the equal pile sinking in full wafer place, pile cover is first set, one layer of mattress layer is then re-layed.
2. fill out sand tube stake Bridgehead by Blastig reinforced construction method according to claim 1, which is characterized in that the prefabricated tubular pile
Stake end connect by way of nested with pile top.
3. fill out sand tube stake Bridgehead by Blastig reinforced construction method according to claim 2, which is characterized in that the pile top it is upper
Portion has annular caulking groove；The internal diameter of annular caulking groove and the outer diameter of prefabricated tubular pile are suitable, and the outer diameter of annular caulking groove is greater than prefabricated tubular pile
Outer diameter, and the outer wall of annular caulking groove has cutting edge；The stake end of prefabricated tubular pile is nested in annular caulking groove.
4. a kind of fill out sand tube stake Bridgehead by Blastig ruggedized construction, including counterbore, prefabricated tubular pile, pile cover and mattress layer；It is characterized in that,
The stake end of prefabricated tubular pile has opening pile toe, and the outer diameter of opening pile toe is greater than the outer diameter of prefabricated tubular pile, while opening pile toe is logical
It crosses and opens up cutting edge formation tip in outer wall；Counterbore sinks to pile sinking point by opening pile toe and is formed；The pile body of prefabricated tubular pile and heavy
There is dry crude sand between the hole wall in hole.
5. fill out sand tube stake Bridgehead by Blastig ruggedized construction according to claim 4, which is characterized in that the top of the pile top has
There is annular caulking groove；The internal diameter of annular caulking groove and the outer diameter of prefabricated tubular pile are suitable, and the outer diameter of annular caulking groove is greater than the outer of prefabricated tubular pile
Diameter, and the outer wall of annular caulking groove has cutting edge；The stake end of prefabricated tubular pile is nested in annular caulking groove.
6. fill out sand tube stake Bridgehead by Blastig ruggedized construction according to claim 5, which is characterized in that the stake end of prefabricated tubular pile with
It is welded and fixed between annular caulking groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910239362.9A CN110206014A (en) | 2019-03-27 | 2019-03-27 | Fill out sand tube stake Bridgehead by Blastig reinforced construction method and its structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910239362.9A CN110206014A (en) | 2019-03-27 | 2019-03-27 | Fill out sand tube stake Bridgehead by Blastig reinforced construction method and its structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110206014A true CN110206014A (en) | 2019-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910239362.9A Pending CN110206014A (en) | 2019-03-27 | 2019-03-27 | Fill out sand tube stake Bridgehead by Blastig reinforced construction method and its structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116438353A (en) * | 2020-06-23 | 2023-07-14 | 拉梅什·钱德拉·古普塔 | Rapid consolidation compaction process for soil improvement of various soil layers and intermediate rock-soil material layers in soil deposits |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2673944Y (en) * | 2003-08-19 | 2005-01-26 | 邹宗煊 | Prestressed pipe pile with large end filled with sand |
| CN102535263A (en) * | 2012-02-14 | 2012-07-04 | 中铁十九局集团有限公司 | Roadbed with pile-net composite structure and construction method thereof |
| CN104389305A (en) * | 2014-11-18 | 2015-03-04 | 中淳高科桩业股份有限公司 | Sand-filled bamboo-joint pile and construction method thereof |
| JP2017031783A (en) * | 2015-08-03 | 2017-02-09 | 有限会社ケミカリング | Pile with metal fitting |
-
2019
- 2019-03-27 CN CN201910239362.9A patent/CN110206014A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2673944Y (en) * | 2003-08-19 | 2005-01-26 | 邹宗煊 | Prestressed pipe pile with large end filled with sand |
| CN102535263A (en) * | 2012-02-14 | 2012-07-04 | 中铁十九局集团有限公司 | Roadbed with pile-net composite structure and construction method thereof |
| CN104389305A (en) * | 2014-11-18 | 2015-03-04 | 中淳高科桩业股份有限公司 | Sand-filled bamboo-joint pile and construction method thereof |
| JP2017031783A (en) * | 2015-08-03 | 2017-02-09 | 有限会社ケミカリング | Pile with metal fitting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116438353A (en) * | 2020-06-23 | 2023-07-14 | 拉梅什·钱德拉·古普塔 | Rapid consolidation compaction process for soil improvement of various soil layers and intermediate rock-soil material layers in soil deposits |
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Application publication date: 20190906 |