CN109853534B - Construction method of stiffening core pedestal pile - Google Patents
Construction method of stiffening core pedestal pile Download PDFInfo
- Publication number
- CN109853534B CN109853534B CN201910000400.5A CN201910000400A CN109853534B CN 109853534 B CN109853534 B CN 109853534B CN 201910000400 A CN201910000400 A CN 201910000400A CN 109853534 B CN109853534 B CN 109853534B
- Authority
- CN
- China
- Prior art keywords
- pile
- pipe
- pile body
- construction
- inner pipe
- 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.)
- Active
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a construction method of a stiffening core pedestal pile, which comprises the following construction steps: construction preparation, namely aligning the inner pile pipe head and the outer pile pipe head of construction equipment to pile positions; piling to elevation, and gradually sinking the inner pipe and the outer pipe to the designed elevation; expanding the pile body end, and extruding or tamping the pile body end by using the inner pipe in multiple times to form a pile end expanded body; then, the outer layer, the middle layer and the inner layer of the pile body are piled and formed in sequence, and the whole pile body construction is completed. Compared with the prior art, the stiffening core club-footed pile construction method has the advantages that the inner pipe and the outer pipe are constructed on the same equipment through the static pressure pile driver or the vibration pipe sinking pile driver, and the holes are formed to form piles, so that the construction efficiency is improved, and the verticality of a pile body is improved; the soil around the main body of the pile body is compacted for many times, the side frictional resistance of the pile is obviously improved, the strength of the pile body is obviously improved, and the strength is obviously improved compared with the strength of normal drilling underwater concrete and vibration immersed tube pile concrete with the same proportion.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a method for constructing a stiffening core pedestal pile.
Background
New materials and new processes of pile foundations are continuously generated, but the principle of the pile is to increase the frictional resistance of the side wall of the pile and the bearing capacity of the pile end because the pile only finally acts together with the embedded soil body; the existing construction method only aims at one of the existing construction methods, either the friction force of the side wall of the pile is improved, or the bearing capacity of the pile end is improved, a new construction mode is lacked, and the friction force of the side wall of the pile and the bearing capacity of the pile end can be improved, and the quality of the pile body can be improved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a construction method of a stiffened-core pedestal pile aiming at the defects of the prior art.
In order to solve the technical problems, the invention adopts the technical scheme that:
a construction method of a stiffening core pedestal pile comprises the following construction steps:
(1) construction preparation: determining a pile position, erecting construction equipment, and aligning inner and outer pile driving pipe heads of the construction equipment to the pile position;
(2) piling to an elevation: starting a pile machine, simultaneously working an inner pipe and an outer pipe on the pile machine, constructing by adopting a static pressure process or a vibrating hammer striking process, extruding soil into an inner pipe to form a hole, forming a pile body by protecting a wall of the outer pipe, and gradually sinking the inner pipe and the outer pipe to a designed elevation;
(3) pile body end expansion construction: after the inner pipe and the outer pipe are sunk to the designed elevation, the inner pipe is pulled out, materials required by design are poured in batches from the hole wall or the hole opening of the outer pipe, and the inner pipe is extruded or tamped by times to form a pile end expanding body;
(4) forming the outer layer of the pile body: after the construction of the pile end expanding body is completed, pulling out the inner pipe, firstly pouring outmost pile body materials in batches, gradually pulling out the outer pipe, extruding and expanding the inner pipe to ram the pile body, and gradually following the outer pipe to the designed elevation;
(5) forming the middle layer of the pile body: after the outer layer of the pile is formed, pulling out the inner pipe, firstly pouring the material of the pile body of the middle layer in batches, gradually pulling out the outer pipe, extruding and expanding the inner pipe to tamp the pile body, and gradually following the outer pipe to the designed elevation;
(6) forming an inner layer of the pile body: after the middle layer of the pile is formed, the inner pipe is pulled out, the pile body material of the inner layer is poured in batches, the outer pipe is gradually pulled out, and the whole pile manufacturing process is completed.
Preferably, the static pressure process adopts a static pressure pile driver to connect the inner pipe and the outer pipe, and the inner pipe and the outer pipe are synchronously sunk into the pile body for construction.
Preferably, the vibration hammer striking process adopts a vibration pipe-sinking pile machine to clamp the inner pipe and the outer pipe, and the inner pipe and the outer pipe are alternately sunk into the pile body for construction.
Preferably, the cross section of the pile body is any one of a polygon or a polygon star, and the cross sections of the inner pipe and the outer pipe are matched with the cross section of the pile body.
Preferably, the outer layer and the middle layer of the pile body are any one of cement, cement mixture, broken stone yellow sand, sand and stone mixture or concrete; the inner layer of the pile body is any one of a tubular pile, a square pile or reinforced concrete.
Compared with the prior art, the stiffening core club-footed pile construction method has the advantages that the inner pipe and the outer pipe are constructed on the same equipment through the static pressure pile driver or the vibration pipe sinking pile driver, and the holes are formed to form piles, so that the construction efficiency is improved, and the verticality of a pile body is improved; the soil around the main body of the pile body is compacted for many times, the side frictional resistance of the pile is obviously improved, the strength of the pile body is obviously improved, and the strength is obviously improved compared with the strength of normal drilling underwater concrete and vibration immersed tube pile concrete with the same proportion.
Drawings
FIG. 1 is a flow chart of the construction of the present invention;
FIG. 2 is a schematic view of enlarged construction of the pile body end of the present invention;
FIG. 3 is a schematic view of the outer layer of the pile body of the present invention;
FIG. 4 is a schematic view of the layer formation in the pile body of the present invention;
FIG. 5 is a schematic view of the inner layer formation of the pile body of the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 5, a method for constructing a stiffened core pedestal pile comprises the following construction steps:
(1) construction preparation: determining a pile position, erecting construction equipment, and aligning inner and outer pile driving pipe heads of the construction equipment to the pile position;
(2) piling to an elevation: starting a pile machine, simultaneously working an inner pipe and an outer pipe on the pile machine, constructing by adopting a static pressure process or a vibrating hammer striking process, extruding soil into an inner pipe to form a hole, forming a pile body by protecting a wall of the outer pipe, and gradually sinking the inner pipe and the outer pipe to a designed elevation;
(3) pile body end expansion construction: after the inner pipe and the outer pipe are sunk to the designed elevation, the inner pipe is pulled out, materials required by design are poured in batches from the hole wall or the hole opening of the outer pipe, and the inner pipe is extruded or tamped by times to form a pile end expanding body;
(4) forming the outer layer of the pile body: after the construction of the pile end expanding body is completed, pulling out the inner pipe, firstly pouring outmost pile body materials in batches, gradually pulling out the outer pipe, extruding and expanding the inner pipe to ram the pile body, and gradually following the outer pipe to the designed elevation;
(5) forming the middle layer of the pile body: after the outer layer of the pile is formed, pulling out the inner pipe, firstly pouring the material of the pile body of the middle layer in batches, gradually pulling out the outer pipe, extruding and expanding the inner pipe to tamp the pile body, and gradually following the outer pipe to the designed elevation;
(6) forming an inner layer of the pile body: after the middle layer of the pile is formed, the inner pipe is pulled out, the pile body material of the inner layer is poured in batches, the outer pipe is gradually pulled out, and the whole pile manufacturing process is completed.
Example one
In the embodiment, the static pressure process adopts a static pressure pile driver to connect the inner pipe and the outer pipe, the inner pipe and the outer pipe are synchronously sunk into the pile body, and the inner pipe extrudes soil to form holes through the continuous action of the oil hydraulic cylinder and tamps the pile body at the same time.
Example two
In this embodiment, the vibrating hammer striking process adopts a vibrating pipe-sinking pile machine to hold and connect the inner pipe and the outer pipe, the inner pipe and the outer pipe are alternately sunk into the pile body, the inner pipe and the outer pipe simultaneously squeeze soil to form holes, and the inner pipe tamps the pile body.
Preferably, the cross section of the pile body is any one of a polygon or a polygon star, and the cross sections of the inner pipe and the outer pipe are matched with the cross section of the pile body.
Preferably, the outer layer and the middle layer of the pile body are any one of cement, cement mixture, broken stone yellow sand, sand and stone mixture or concrete; the inner layer of the pile body is any one of a tubular pile, a square pile or reinforced concrete.
The present invention is not limited to the embodiments described above, and those skilled in the art may make modifications or changes within the scope of the disclosure without departing from the spirit of the present invention, so that the scope of the present invention is defined by the appended claims.
Claims (5)
1. A construction method of a stiffening core pedestal pile is characterized by comprising the following steps: the method comprises the following construction steps:
(1) construction preparation: determining a pile position, erecting construction equipment, and aligning inner and outer pile driving pipe heads of the construction equipment to the pile position;
(2) piling to an elevation: starting a pile machine, simultaneously working an inner pipe and an outer pipe on the pile machine, constructing by adopting a static pressure process or a vibrating hammer striking process, extruding soil into an inner pipe to form a hole, forming a pile body by protecting a wall of the outer pipe, and gradually sinking the inner pipe and the outer pipe to a designed elevation;
(3) pile body end expansion construction: after the inner pipe and the outer pipe are sunk to the designed elevation, the inner pipe is pulled out, materials required by design are poured in batches from the hole wall or the hole opening of the outer pipe, and the inner pipe is extruded or tamped by times to form a pile end expanding body;
(4) forming the outer layer of the pile body: after the construction of the pile end expanding body is completed, pulling out the inner pipe, firstly pouring outmost pile body materials in batches, gradually pulling out the outer pipe, extruding and expanding the inner pipe to ram the pile body, and gradually following the outer pipe to the designed elevation;
(5) forming the middle layer of the pile body: after the outer layer of the pile is formed, pulling out the inner pipe, firstly pouring the material of the pile body of the middle layer in batches, gradually pulling out the outer pipe, extruding and expanding the inner pipe to tamp the pile body, and gradually following the outer pipe to the designed elevation;
(6) forming an inner layer of the pile body: after the middle layer of the pile is formed, the inner pipe is pulled out, the pile body material of the inner layer is poured in batches, the outer pipe is gradually pulled out, and the whole pile manufacturing process is completed.
2. A method for constructing a stiffened core pedestal pile according to claim 1, wherein: the static pressure process adopts a static pressure pile driver to connect the inner pipe and the outer pipe, and the inner pipe and the outer pipe are synchronously sunk into the pile body for construction.
3. A method for constructing a stiffened core pedestal pile according to claim 1, wherein: the vibrating hammering process adopts a vibrating pipe-sinking pile machine to clamp the inner pipe and the outer pipe, and the inner pipe and the outer pipe are alternately sunk into the pile body for construction.
4. A method for constructing a stiffened core pedestal pile according to claim 1, wherein: the section of the pile body is any one of a polygon or a polygon star, and the sections of the inner pipe and the outer pipe are matched with the section of the pile body.
5. A method for constructing a stiffened core pedestal pile according to claim 1, wherein: the outer layer and the middle layer of the pile body are any one of cement, cement mixture, broken stone yellow sand, sand and stone mixture or concrete; the inner layer of the pile body is any one of a tubular pile, a square pile or reinforced concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910000400.5A CN109853534B (en) | 2019-01-02 | 2019-01-02 | Construction method of stiffening core pedestal pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910000400.5A CN109853534B (en) | 2019-01-02 | 2019-01-02 | Construction method of stiffening core pedestal pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109853534A CN109853534A (en) | 2019-06-07 |
| CN109853534B true CN109853534B (en) | 2021-03-26 |
Family
ID=66893637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910000400.5A Active CN109853534B (en) | 2019-01-02 | 2019-01-02 | Construction method of stiffening core pedestal pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109853534B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110281351B (en) * | 2019-06-17 | 2020-10-02 | 三峡大学 | Expanded concrete pile construction device with uniform density and construction method |
| CN112663606A (en) * | 2020-12-23 | 2021-04-16 | 江苏东合南岩土科技股份有限公司 | Construction method of concrete expanded head prestress anti-pulling anchor rod |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60144416A (en) * | 1984-01-09 | 1985-07-30 | Nippon Kokan Kk <Nkk> | Cast-in-place concrete steel tubular pile and its construction |
| CN1316570A (en) * | 2000-04-05 | 2001-10-10 | 陈为群 | Prefabrication and casting combined technology for forming piles |
| CN102296593A (en) * | 2011-05-18 | 2011-12-28 | 绍兴文理学院 | Cylindrical compound bored concrete pile of concrete gravels and construction process thereof |
| CN102733378B (en) * | 2012-04-25 | 2013-12-04 | 王继忠 | Construction method of concrete pile |
| CN103821139B (en) * | 2014-02-11 | 2015-08-19 | 浙江交通职业技术学院 | A kind of rammer expands carrier strength core multiple elements design stake and reinforced soft soil ground construction method |
| CN103911986B (en) * | 2014-03-31 | 2016-01-20 | 福建工程学院 | A kind of construction method combining strike-on steel pipe pile |
| CN206477351U (en) * | 2017-02-21 | 2017-09-08 | 黄河勘测规划设计有限公司 | Element earth pile for the high collapsible loess foundation of big thickness |
| CN109098172A (en) * | 2018-09-17 | 2018-12-28 | 朱建新 | The construction method of stake |
-
2019
- 2019-01-02 CN CN201910000400.5A patent/CN109853534B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109853534A (en) | 2019-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2408765C2 (en) | Pyramid or cone ramming tip and method of its use to erect rammed crushed stone supports | |
| CN104074186B (en) | The casing device of pore-forming and construction method thereof in a kind of building lot | |
| CN103556628B (en) | Spiral conical soil compaction pile construction method | |
| CN112746615B (en) | Brine stratum mucky soil cast-in-place pile construction is with protecting a device | |
| CN109853534B (en) | Construction method of stiffening core pedestal pile | |
| CN105672307A (en) | Expanded-base combination end pile bearing foundation | |
| CN104563147B (en) | Composite structure pile foundation applied to karst area and construction method of composite structure pile foundation | |
| CN108221972B (en) | Combined pile, construction method thereof and single pile vertical bearing capacity calculation method | |
| US11479935B2 (en) | Extensible shells and related methods for constructing a ductile support pier | |
| CN106013096B (en) | A kind of construction foundation working method | |
| CN111636420A (en) | Construction equipment and construction method of anti-necking sinking pipe cast-in-place pile | |
| KR101714610B1 (en) | Steel pipe pile construction method of sacrificial steel pipe casing partial pullout | |
| CN111827280A (en) | Ex-situ pouring, jacking and in-place hole digging pile retaining wall device and construction method thereof | |
| KR102319143B1 (en) | Soil retaining wall for phc pile | |
| RU87718U1 (en) | Injection Pile | |
| CN212316905U (en) | Construction equipment of anti-necking immersed tube bored concrete pile | |
| CN212506303U (en) | Partially recyclable secant pile supporting structure | |
| CN115045277A (en) | Construction method of steel pipe composite pile | |
| RU72986U1 (en) | PILE | |
| KR102070912B1 (en) | Phc pile for soil retaining wall, mold assembly and manufacturing method thereof | |
| KR102037275B1 (en) | Partially expanding apparatus for underground pipe and composite cast in place pile method using the same | |
| CN113373913A (en) | Cast-in-place pile immersed tube and cast-in-place pile construction method | |
| CN104294817A (en) | Construction method for concrete pile | |
| CN215758995U (en) | High-pressure jet grouting bottom-expanding prefabricated combined pile | |
| CN219240525U (en) | Maintenance and stability system for bored pile construction |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |