CN114182722A - Construction method for water-rich stratum carrier pile - Google Patents
Construction method for water-rich stratum carrier pile Download PDFInfo
- Publication number
- CN114182722A CN114182722A CN202111588510.1A CN202111588510A CN114182722A CN 114182722 A CN114182722 A CN 114182722A CN 202111588510 A CN202111588510 A CN 202111588510A CN 114182722 A CN114182722 A CN 114182722A
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- China
- Prior art keywords
- pile
- casing
- water
- pile casing
- carrier
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- Pending
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000011449 brick Substances 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000002787 reinforcement Effects 0.000 claims abstract description 7
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 239000011799 hole material Substances 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 9
- 230000035515 penetration Effects 0.000 claims description 7
- 239000004568 cement Substances 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 3
- 230000001186 cumulative effect Effects 0.000 claims 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
-
- 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
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/44—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with enlarged footing or enlargements at the bottom of the pile
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a construction method of a carrier pile for a water-rich stratum, and belongs to the technical field of foundation construction. The method comprises the following steps: s1: forming a hole above the impervious layer; s2: the bottom opening of the pile casing is compacted and sunk into a pre-sunk hole; s3: forming a brick plug at the bottom opening of the protective cylinder; s4: the rammer ramms the brick plug, bring the pile casing to the depth of the designed pile bottom; s5: the rammer rams the brick plug out of the bottom opening of the pile casing, and throw in the dry and hard concrete and ram; s6: installing a reinforcement cage; s7: and pouring pile body concrete to form the carrier pile. According to the method, the bottom opening of the pile casing is compacted, and the brick plug is formed at the bottom opening of the pile casing, so that during construction of the carrier pile in the water-rich stratum, the sudden gushing is prevented, the construction difficulty caused by the fact that the confined water enters the pile casing is avoided, the construction quality is prevented from being influenced, the method is simple and easy to operate, the hole forming efficiency of the carrier pile in the water-rich stratum can be effectively improved, the construction progress can be accelerated, and the construction cost is saved.
Description
Technical Field
The invention relates to the technical field of foundation construction, in particular to a construction method for a water-rich stratum carrier pile.
Background
Along with social development, the construction period pressure of the building engineering is gradually accelerated, the construction environment is more and more complex, a construction method meeting the safety, quality, construction period, cost and other aspects is adopted to meet the design intention and design requirements, and the problem that the hole forming of a column hammer is difficult because the construction pressure water of a carrier pile in a water-rich stratum enters a pile casing is solved in the carrier pile construction process.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a construction method for a water-rich stratum carrier pile. The method comprises the following steps:
s1: forming a hole above the impervious layer;
s2: the bottom opening of the pile casing is compacted and sunk into the pre-sunk hole;
s3: forming a brick plug at the bottom opening of the pile casing;
s4: the brick plug is tamped by a tamping hammer, and the protective cylinder is brought to the designed pile bottom depth;
s5: the brick plug is knocked out of the bottom opening of the pile casing by a rammer, and dry and hard concrete is thrown into the pile casing for ramming;
s6: installing a reinforcement cage;
s7: and pouring pile body concrete to form the carrier pile.
Further, the S1 specifically includes: and (3) tamping the pile casing by using a hammer, pre-sinking the pile casing to a depth of 40-60 cm above the impervious layer, and then lifting the pile casing to form the hole.
Further, in S2, the bottom opening of the casing is fastened with a plastic cloth.
Further, the S3 specifically includes: and after the bottom of the pile casing sinks to the bottom of the hole, cement and bricks are put into the pile casing through a feeding port of the pile casing, and the cement and the bricks are rammed by a rammer to form the brick plug at the bottom port of the pile casing.
Further, the thickness of the brick plug is 30-50 cm.
Further, the dry hard concrete is not more than 0.3m3。
Further, in the S6, a three-shot penetration test is performed, and the reinforcement cage is installed after the three-shot penetration integrated value meets the design requirement.
Further, in S6, the three-hit penetration integrated value is not greater than 8 cm.
Further, the method further comprises:
s8: and detecting the quality of the pile body through a static load test and a pile body integrity test.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: according to the invention, the bottom opening of the pile casing is compacted, and the brick plug is formed at the bottom opening of the pile casing, so that during construction of the carrier pile in the water-rich stratum, the outburst is prevented, the construction difficulty caused by the fact that pressure-bearing water enters the pile casing is avoided, and the influence on the construction quality is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart of a construction method of a carrier pile for a water-rich stratum provided by the invention.
1-a water permeable layer; 2-protecting the cylinder; 3-plastic cloth; 4-a feeding port; 5-a rammer; 6-designing a pile bottom; 7-brick plug; 8-a reinforcement cage; 9-pile body concrete.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, a construction method of a carrier pile for a water-rich stratum includes: s1: tamping the pile casing 2 by using a tamping hammer 5, pre-sinking the pile casing 2 to a depth of 40-60 cm above a water-impermeable layer, then taking out the pile casing 2, and forming a hole; s2: the bottom opening of the protective cylinder 2 is compacted by plastic cloth 3, and the protective cylinder 2 is slowly sunk into a pre-sunk hole; s3: after the bottom of the pile casing 2 sinks to the bottom of the hole, cement and bricks are immediately fed through a feeding port 4 in the upper part of the pile casing 2, and the cement and the bricks are rammed by a rammer 5 to form a brick plug 7 with the thickness of 30-50 cm at the bottom port of the pile casing 2, so that confined water is prevented from entering the interior of the pile casing 2; s4: the pile casing 2 is brought to the designed pile bottom depth under the tamping energy of the tamping hammer 5 through the friction force between the brick plug 7 and the pile casing 2; s5: after the pile casing 2 sinks to the designed pile bottom elevation, the brick plug 7 is knocked out of the bottom opening of the pile casing 5 by the rammer 5, and the brick plug is timely thrown into the pile casing to be not more than 0.3m3Ramming dry and hard concrete;
s6: performing a three-stroke penetration test, wherein the integrated value of the three-stroke penetration is not more than 8cm, and installing a reinforcement cage 8 after the three-stroke penetration meets the design requirement; s7: and detecting the quality of the pile body through a static load test and a pile body integrity test.
It is worth to say that in the invention, the bottom opening of the pile casing is compacted, and the brick plug is formed at the bottom opening of the pile casing, so that during the construction of the carrier pile in the water-rich stratum, the sudden gushing is prevented, the construction difficulty caused by the fact that the bearing water enters the pile casing is avoided, and the influence on the construction quality is avoided.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A construction method of a carrier pile for a water-rich stratum is characterized by comprising the following steps:
s1: forming a hole above the impervious layer;
s2: the bottom opening of the pile casing is compacted and sunk into the pre-sunk hole;
s3: forming a brick plug at the bottom opening of the pile casing;
s4: the brick plug is tamped by a tamping hammer, and the protective cylinder is brought to the designed pile bottom depth;
s5: the brick plug is knocked out of the bottom opening of the pile casing by a rammer, and dry and hard concrete is thrown into the pile casing for ramming;
s6: installing a reinforcement cage;
s7: and pouring pile body concrete to form the carrier pile.
2. The method for constructing the carrier pile for the water-rich stratum according to claim 1, wherein the step S1 specifically comprises the following steps: and (3) tamping the pile casing by using a hammer, pre-sinking the pile casing to a depth of 40-60 cm above the impervious layer, and then lifting the pile casing to form the hole.
3. The method for constructing a carrier pile for a water-rich stratum according to claim 1, wherein in the step S2, a bottom opening of the casing is fastened by plastic cloth.
4. The method for constructing the carrier pile for the water-rich stratum according to claim 1, wherein the step S3 specifically comprises the following steps: and after the bottom of the pile casing sinks to the bottom of the hole, cement and bricks are put into the pile casing through a feeding port of the pile casing, and the cement and the bricks are rammed by a rammer to form the brick plug at the bottom port of the pile casing.
5. The method for constructing the carrier pile for the water-rich stratum according to claim 4, wherein the thickness of the brick plug is 30-50 cm.
6. The method as claimed in claim 1, wherein the dry hard concrete is not more than 0.3m in the step S53。
7. The method as claimed in claim 1, wherein a triple-penetration test is performed in S6, and the reinforcement cage is installed after a cumulative value of triple-penetration meets design requirements.
8. The method of claim 7, wherein in the step S6, the cumulative value of the triple-hit penetration is not greater than 8 cm.
9. The method for constructing the carrier pile for the water-rich stratum according to claim 1, wherein the method further comprises the following steps:
s8: and detecting the quality of the pile body through a static load test and a pile body integrity test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111588510.1A CN114182722A (en) | 2021-12-23 | 2021-12-23 | Construction method for water-rich stratum carrier pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111588510.1A CN114182722A (en) | 2021-12-23 | 2021-12-23 | Construction method for water-rich stratum carrier pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114182722A true CN114182722A (en) | 2022-03-15 |
Family
ID=80605913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111588510.1A Pending CN114182722A (en) | 2021-12-23 | 2021-12-23 | Construction method for water-rich stratum carrier pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114182722A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200893A (en) * | 2007-12-11 | 2008-06-18 | 中机工程勘察设计研究院 | Construction method of pile with bearing base |
| CN104404956A (en) * | 2014-11-20 | 2015-03-11 | 张红 | Construction method for pedestal piles |
| CN105821836A (en) * | 2016-02-18 | 2016-08-03 | 王继忠 | Construction method for carrier pile |
-
2021
- 2021-12-23 CN CN202111588510.1A patent/CN114182722A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200893A (en) * | 2007-12-11 | 2008-06-18 | 中机工程勘察设计研究院 | Construction method of pile with bearing base |
| CN104404956A (en) * | 2014-11-20 | 2015-03-11 | 张红 | Construction method for pedestal piles |
| CN105821836A (en) * | 2016-02-18 | 2016-08-03 | 王继忠 | Construction method for carrier pile |
Non-Patent Citations (4)
| Title |
|---|
| 万成福: "浅谈载体桩在海南文昌书香小镇项目工程的应用", 《江西建材》 * |
| 戚银生: "载体桩施工中注意的问题", 《工程勘察》 * |
| 沈保汉等: "载体桩技术的诞生与发展", 《工程勘察》 * |
| 王继忠: "载体桩技术的诞生与发展", 《建筑结构》 * |
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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 |
Application publication date: 20220315 |
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| RJ01 | Rejection of invention patent application after publication |