CN111794224A - Construction method of anchor rod implanted uplift pile - Google Patents
Construction method of anchor rod implanted uplift pile Download PDFInfo
- Publication number
- CN111794224A CN111794224A CN202010695767.6A CN202010695767A CN111794224A CN 111794224 A CN111794224 A CN 111794224A CN 202010695767 A CN202010695767 A CN 202010695767A CN 111794224 A CN111794224 A CN 111794224A
- Authority
- CN
- China
- Prior art keywords
- anchor rod
- pile
- pile hole
- rod sleeve
- uplift
- 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.)
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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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- 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
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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- 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
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
Abstract
The invention discloses a construction method of an implanted anchor rod type uplift pile, which comprises the following steps: 1) drilling a hole in the foundation to form a pile hole with a predetermined depth; 2) placing the reinforcement cage into the pile hole; 3) putting the anchor rod sleeve into the pile hole, and pressing the anchor rod sleeve at the orifice of the pile hole to enable the anchor rod sleeve to be inserted into the foundation at the bottom of the pile hole for a certain depth; 4) inserting an anchor rod into the anchor rod sleeve, wherein the anchor rod extends out of the bottom of the anchor rod sleeve and enters the foundation at the bottom of the pile hole to a certain depth; 5) injecting grout into the anchor rod sleeve to form an anchoring section in the foundation at the bottom of the pile hole, and then removing the anchor rod sleeve and the support frame from the pile hole; 6) and pouring concrete into the pile hole, and tensioning the anchor rod and locking the anchor head after the concrete is finally set to finally form the uplift pile. The uplift pile formed by the method has large uplift resistance, and can effectively reduce the number of uplift piles and the length of the piles.
Description
Technical Field
The invention relates to the field of uplift piles, in particular to a construction method of an implanted anchor rod type uplift pile.
Background
The uplift pile is also used as an uplift pile and is arranged for offsetting the uplift force generated by water in soil to the structure if the underground structure of the building engineering has a part lower than the water level of the surrounding soil, and the uplift pile comprises a reinforced concrete uplift pile and an uplift anchor rod. The main action mechanism is to resist axial tension by means of the friction force between the pile body and the soil layer so as to prevent the building structure from being damaged by the buoyancy of water. The method is widely applied to anti-floating of large basements, anti-pulling of high-rise buildings (structures), anti-pulling of offshore wharf platforms, anchor pile foundations of suspension bridges and cable-stayed bridges, pile foundations of large ship dock floors, anchor pile foundations in static load test piles and the like. In areas with high ground water levels, when the buoyancy of the ground water cannot be balanced by the load of the upper structure, the whole or part of the structure is acted by upward buoyancy. Such as underground water pools, basement structures of buildings, biochemical pools of sewage treatment plants and the like, anti-pulling piles must be arranged.
However, when the building is subjected to a large buoyancy force, more uplift piles need to be arranged, and when the building area is limited, the uplift piles of the structural bottom plate are dense and hemp or the uplift piles are very long, so that construction is difficult, and particularly in the stratum which is difficult to construct such as bedrock and thick pebble layers, the cost and the construction period are increased. Therefore, it is necessary to consider a pile for resisting pulling, which can provide a large pulling resistance, thereby reducing the number of piles and the length of the piles.
Disclosure of Invention
The invention aims to provide a construction method for implanting an anchor rod type uplift pile.
In order to achieve the purpose, the invention adopts the following technical scheme:
the construction method of the implanted anchor rod type uplift pile comprises the following steps:
1) drilling a hole in the foundation to form a pile hole with a predetermined depth;
2) placing the reinforcement cage into the pile hole;
3) placing the anchor rod sleeve into the pile hole, pressing the anchor rod sleeve at the orifice of the pile hole to enable the anchor rod sleeve to be inserted into the foundation at the bottom of the pile hole for a certain depth, and then arranging a support frame at the orifice of the pile hole to stabilize the anchor rod sleeve;
4) inserting an anchor rod into the anchor rod sleeve, wherein the anchor rod extends out of the bottom of the anchor rod sleeve and enters the foundation at the bottom of the pile hole to a certain depth;
5) injecting grout into the anchor rod sleeve to form an anchoring section in the foundation at the bottom of the pile hole, and then removing the anchor rod sleeve and the support frame from the pile hole;
6) and pouring concrete into the pile hole, and tensioning the anchor rod and locking the anchor head after the concrete is finally set to finally form the uplift pile.
Further, in the step 1), cleaning the pile hole after the pile hole is formed.
Further, in the step 3), the anchor rod sleeve is placed along the middle shaft of the pile hole.
Further, in the step 5), slurry is injected into the anchor rod sleeve twice.
By adopting the technical scheme, when the reinforced concrete uplift pile is constructed, anchor rod construction is carried out by the way, so that the reinforced concrete uplift pile and anchor rod combined uplift structure is formed, the uplift force of the structure is greater than the frictional resistance between the cast-in-place pile side and the soil layer, the anchoring section of the anchor rod and the pile bottom soil layer (rock stratum) provide greater uplift resistance, and the advantages of the uplift reinforced concrete pile and the uplift anchor rod are exerted, so that the uplift force is greatly increased, the number of the uplift piles is effectively reduced, and the pile length is reduced.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and the detailed description;
FIG. 1 is a schematic view of step 1) of the present invention;
FIG. 2 is a schematic view of step 2) of the present invention;
FIG. 3 is a schematic view of step 3) of the present invention;
FIG. 4 is a schematic view of step 4) of the present invention;
FIG. 5 is a schematic view of step 5) in the present invention;
FIG. 6 is a schematic diagram of step 6) of the present invention.
Detailed Description
As shown in one of fig. 1 to 6, the construction method of the implanted anchor type uplift pile according to the present invention comprises the steps of:
1) drilling a hole on the foundation to form a pile hole with a preset depth, and then cleaning the hole;
2) placing the reinforcement cage into the pile hole;
3) placing an anchor rod sleeve into the pile hole (the anchor rod sleeve is placed along the central axis of the pile hole), pressing the anchor rod sleeve at the orifice of the pile hole to enable the anchor rod sleeve to be inserted into the foundation at the bottom of the pile hole for a certain depth, and then arranging a support frame at the orifice of the pile hole to stabilize the anchor rod sleeve;
4) inserting an anchor rod into the anchor rod sleeve, wherein the anchor rod extends out of the bottom of the anchor rod sleeve and enters the foundation at the bottom of the pile hole to a certain depth;
5) injecting grout into the anchor rod sleeve to form an anchoring section in the foundation at the bottom of the pile hole, and then removing the anchor rod sleeve and the support frame from the pile hole; in the step, slurry is injected into the anchor rod sleeve twice to ensure the filling degree of the anchoring section;
6) and pouring concrete into the pile hole, and tensioning the anchor rod and locking the anchor head after the concrete is finally set to finally form the uplift pile.
By adopting the technical scheme, anchor rod construction is carried out incidentally when the reinforced concrete uplift pile is constructed, and the reinforced concrete uplift pile and anchor rod combined uplift structure is formed. The uplift resistance of the structure is the frictional resistance between the side of the cast-in-place pile and the soil layer, the anchoring section of the anchor rod and the pile foundation layer (rock stratum) also provide larger uplift resistance, and the advantages of the uplift reinforced concrete pile and the uplift anchor rod are exerted simultaneously, so that the uplift resistance is greatly increased, the quantity of the uplift piles is effectively reduced, and the pile length is reduced.
While the invention has been described in connection with the above embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, which are illustrative and not restrictive, and that those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (4)
1. The construction method of the implanted anchor rod type uplift pile is characterized in that: which comprises the following steps:
1) drilling a hole in the foundation to form a pile hole with a predetermined depth;
2) placing the reinforcement cage into the pile hole;
3) placing the anchor rod sleeve into the pile hole, pressing the anchor rod sleeve at the orifice of the pile hole to enable the anchor rod sleeve to be inserted into the foundation at the bottom of the pile hole for a certain depth, and then arranging a support frame at the orifice of the pile hole to stabilize the anchor rod sleeve;
4) inserting an anchor rod into the anchor rod sleeve, wherein the anchor rod extends out of the bottom of the anchor rod sleeve and enters the foundation at the bottom of the pile hole to a certain depth;
5) injecting grout into the anchor rod sleeve to form an anchoring section in the foundation at the bottom of the pile hole, and then removing the anchor rod sleeve and the support frame from the pile hole;
6) and pouring concrete into the pile hole, and tensioning the anchor rod and locking the anchor head after the concrete is finally set to finally form the uplift pile.
2. The construction method of the implanted anchor type uplift pile according to claim 1, wherein: in the step 1), cleaning the pile hole after the pile hole is formed.
3. The construction method of the implanted anchor type uplift pile according to claim 1, wherein: and 3), placing the anchor rod sleeve along the center shaft of the pile hole.
4. The construction method of the implanted anchor type uplift pile according to claim 1, wherein: and 5), injecting grout into the anchor rod sleeve twice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010695767.6A CN111794224A (en) | 2020-07-17 | 2020-07-17 | Construction method of anchor rod implanted uplift pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010695767.6A CN111794224A (en) | 2020-07-17 | 2020-07-17 | Construction method of anchor rod implanted uplift pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111794224A true CN111794224A (en) | 2020-10-20 |
Family
ID=72806798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010695767.6A Pending CN111794224A (en) | 2020-07-17 | 2020-07-17 | Construction method of anchor rod implanted uplift pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111794224A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305975A (en) * | 2022-08-31 | 2022-11-08 | 湖北工业大学 | Reverse self-balancing pile testing method for compensating insufficient uplift resistance of lower-section pile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH073777A (en) * | 1993-06-18 | 1995-01-06 | Kajima Corp | Method for constructing self-supporting land slide protection wall |
| CN201305848Y (en) * | 2008-11-28 | 2009-09-09 | 武汉武大巨成加固实业有限公司 | Composite reinforced concrete pile capable of bearing pressure and resisting tension |
| CN204738292U (en) * | 2015-04-20 | 2015-11-04 | 深圳市工勘岩土集团有限公司 | Uplift pile structure |
| CN104196021B (en) * | 2014-08-26 | 2017-01-25 | 深圳市工勘岩土集团有限公司 | Uplift pile structure and construction method thereof |
| CN110130409A (en) * | 2019-05-10 | 2019-08-16 | 中国建筑西南勘察设计研究院有限公司 | A kind of construction method of anchor pier prestressing force float Structure |
-
2020
- 2020-07-17 CN CN202010695767.6A patent/CN111794224A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH073777A (en) * | 1993-06-18 | 1995-01-06 | Kajima Corp | Method for constructing self-supporting land slide protection wall |
| CN201305848Y (en) * | 2008-11-28 | 2009-09-09 | 武汉武大巨成加固实业有限公司 | Composite reinforced concrete pile capable of bearing pressure and resisting tension |
| CN104196021B (en) * | 2014-08-26 | 2017-01-25 | 深圳市工勘岩土集团有限公司 | Uplift pile structure and construction method thereof |
| CN204738292U (en) * | 2015-04-20 | 2015-11-04 | 深圳市工勘岩土集团有限公司 | Uplift pile structure |
| CN110130409A (en) * | 2019-05-10 | 2019-08-16 | 中国建筑西南勘察设计研究院有限公司 | A kind of construction method of anchor pier prestressing force float Structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305975A (en) * | 2022-08-31 | 2022-11-08 | 湖北工业大学 | Reverse self-balancing pile testing method for compensating insufficient uplift resistance of lower-section pile |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20201020 |