CN113832956A - Pile end grouting device and using method thereof - Google Patents
Pile end grouting device and using method thereof Download PDFInfo
- Publication number
- CN113832956A CN113832956A CN202111292311.6A CN202111292311A CN113832956A CN 113832956 A CN113832956 A CN 113832956A CN 202111292311 A CN202111292311 A CN 202111292311A CN 113832956 A CN113832956 A CN 113832956A
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- China
- Prior art keywords
- pile
- grouting
- sealing plate
- sleeve
- tubular pile
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- 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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Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000002689 soil Substances 0.000 claims abstract description 14
- 239000004568 cement Substances 0.000 claims abstract description 9
- 239000004567 concrete Substances 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000007569 slipcasting Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 15
- 238000009434 installation Methods 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000011372 high-strength concrete Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
- E02D5/28—Prefabricated piles made of steel or other metals
- E02D5/285—Prefabricated piles made of steel or other metals tubular, e.g. prefabricated from sheet pile elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
Abstract
The invention discloses a pile end grouting device of an open tubular pile and a using method thereof, wherein the pile end grouting device comprises a tubular pile, a sealing plate and a sleeve, the sealing plate is fixed on the pile top of the tubular pile, and a steel sleeve is arranged on the sealing plate and can be connected with a grouting pump; the method comprises the steps of adjusting the position of a tubular pile, fixing a pile top sealing plate, dredging a grouting pipeline, grouting cement, reinforcing a soil body and finishing grouting. The main characteristic is that the pile end is in a form with two open ends, and the use of pile tip is cancelled; in the pile sinking process, a grouting pipe in the pile body and an installation link of the grouting pipe are eliminated, and a pile body cavity is subsequently used as a grouting pipeline. The cost is greatly saved, and the construction efficiency is improved.
Description
Technical Field
The invention relates to the field of building construction, in particular to a pile end grouting device for an open tubular pile and a using method thereof.
Background
The post-grouting technology of the pile end can greatly improve the mechanical properties of the pile end and soil around the pile, reinforce the virtual soil at the bottom of the pile, provide the bearing capacity of the foundation and the bearing capacity of the pile foundation and give full play to the strength of the pile body.
Post-grouting techniques are generally of two types:
firstly, the closed pile tip with the grouting function is installed at the pile end, the grouting pipe is installed in the pile body cavity and connected with the pile tip, and grouting is carried out on the pile bottom through the grouting pipe and the pile tip. However, the construction procedures are more, and the construction efficiency is influenced; the grouting pipe and the pile tip material are consumed more, and the construction cost is increased.
Secondly, a closed pile tip with a grouting function is installed at the pile end, a reusable grouting pipe is installed in the cavity of the pile body, and finally grouting is carried out on the pile bottom through the pile tip. The material consumption of the pile tip is still high.
The problems of high cost and complex construction process generally exist in the prior post grouting technology.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a pile end grouting device of an open tubular pile and a using method thereof.
The invention solves the problems of the prior art by the following technical scheme:
the utility model provides an opening tubular pile's stake end slip casting device, includes shrouding and sleeve pipe, the shrouding is fixed in opening tubular pile's pile top, set up on the shrouding the sleeve pipe is used for connecting the slip casting hose of grouting pump, opening tubular pile is both ends open-ended steel-pipe pile or prefabricated high-strength steel pipe concrete tubular pile.
Further, the sleeve is welded in the center of the sealing plate and is a steel sleeve.
Further, the sealing plate is a sealing plate for grouting, and the sealing plate for grouting is a steel plate.
Further, the sealing plate for grouting is provided with a dry bolt hole.
Further, the bolt hole diameter is 27 mm.
The method for grouting the open tubular pile is characterized by comprising the following steps of:
sinking the open tubular pile into the soil layer, and sinking the open tubular pile into the soil layer section by section until the design elevation is reached;
digging a soil body to expose the pile top of the open tubular pile, and fixedly connecting the pile top of the open tubular pile with the sealing plate of the pile end grouting device;
injecting water from the sleeve at high pressure by using a high-pressure grouting pump, and dredging a grouting pipeline;
injecting cement slurry from the casing pressure by using a high-pressure grouting pump until the cement slurry is discharged from the pile bottom;
and taking out the pile end grouting device from the pile top.
Further, the minimum value of the minimum rated pressure of the high-pressure grouting pump is 10 Mpa.
The invention has the beneficial effects that the post-grouting method of the tubular pile with the pile end opened by utilizing cavity grouting is provided, and is mainly characterized in that the pile end is opened, the installation of a grouting pipe in a pile body is cancelled in the pile sinking process, and the cavity of the pile body is subsequently utilized as a grouting pipeline. The device and the method have the following advantages:
(1) the economic benefit is obvious: compared with the existing hollow precast pile post-grouting technology, the pile tip is not needed, the pile body cavity is used as a grouting pipeline, the material is saved, and the cost is saved.
(2) The construction efficiency is high: when the pile is sunk, the installation link of a grouting pipe is cancelled, and the construction efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings 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 that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a steel pipe pile end grouting device;
FIG. 2 is a schematic structural diagram of a prefabricated high-strength concrete filled steel tube pile end grouting device;
FIGS. 3A and 3B are respectively a steel seal plate with a steel pipe pile (left side) or a prefabricated high-strength concrete-filled steel pipe pile (right side);
in the drawings, the components represented by the respective reference numerals are listed below:
1-steel casing pipe; 2-steel sealing plate; 3-high-strength steel pipe concrete pile pipe; 4-ordinary bolt; 5-a rubber gasket; 6-steel pipe pile; 7-opening of a steel sleeve; 8-a plurality of bolt holes with equal spacing;
Detailed Description
The technical contents of the preferred embodiments of the present invention will be more clearly and easily understood by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.
Example 1
Referring to fig. 1, 3A and 3B, a pile end grouting device for an open tubular pile comprises a steel pipe sleeve 1, a steel sealing plate 2, a steel pipe pile 6 and a steel sleeve hole opening 7.
The steel seal plate 2 is connected with the top of the opening top end of the steel pipe pile 6, the steel sleeve hole opening 7 is arranged in the center of the steel seal plate 2, and the steel pipe sleeve is connected with the steel sleeve hole opening 7.
One particular application of the apparatus is pile sinking: sinking the open steel pipe pile 6 into the soil layer by adopting a static pressure or hammering or vibrating process, and sinking the pile section by section until the designed elevation is reached; after the soil body is excavated and the pile top is exposed, a pile top steel sealing plate 2 for grouting is welded on the pile top. The sealing plate 2 for grouting is composed of a steel plate welded with a steel pipe sleeve 1, and the steel pipe sleeve 1 is welded in the center of the steel sealing plate 2; a high-pressure grouting pump is used for high-pressure water injection, and a grouting pipeline is opened, so that clear water is filled; and (3) injecting cement slurry under pressure by using a high-pressure grouting pump, discharging the cement slurry from the bottom of the pile, reinforcing the soil body, and finishing construction.
The device can realize repeated construction, and after the construction is completed, the grouting device can be taken out from the pile top and installed to the next pile to perform repeated construction on the next pile.
Example 2
Fig. 2 and fig. 3A and 3B show a pile end grouting device for an open tubular pile, which includes a steel pipe sleeve 1, a steel sealing plate 2, a high-strength steel pipe concrete pile pipe 3, and a common bolt 4; a rubber gasket 5; a steel pipe sleeve hole opening 7; a plurality of equidistant bolt holes 8.
Open end of high-strength steel pipe concrete pile pipe 3, lay rubber gasket 5 on the mouth of pipe, connect steel shrouding 2 on the rubber gasket 5, the central authorities of steel shrouding 2 are steel pipe casing hole opening 7, steel pipe casing 1 sets up in steel pipe casing hole opening 7 department, be a plurality of equidistant bolt holes 8 around the rigid pipe casing hole opening 7, bolt hole 8 corresponds rubber gasket and mouth of pipe wall, it has ordinary bolt 4 to run through in the lateral wall that rubber gasket 5 inserted high-strength steel pipe concrete pile pipe 3 in the bolt hole 8.
One specific application of the device is that the open high-strength steel pipe concrete pile pipe is sunk into a soil layer by adopting a static pressure or hammering or vibration process, and the pile is sunk section by section until the designed elevation is reached; after the soil body excavation exposes the pile top, open a plurality of screw holes 8 around pile top steel sealing plate 2 for slip casting, place rubber gasket 5 at 3 mouths of pipe of high-strength steel pipe concrete pile pipe, insert high-strength steel pipe concrete pile pipe 3 with ordinary bolt 4 through screw hole 8, realize the fixed of steel sealing plate. And (3) injecting water at high pressure by using a high-pressure grouting pump, and opening a grouting pipeline to realize the plug opening of clear water. And (3) injecting cement slurry under pressure by using a high-pressure grouting pump, discharging the cement slurry from the bottom of the pile, reinforcing the soil body, and finishing construction.
The device can realize repeated construction, and after the construction is completed, the grouting device can be taken out from the pile top and installed to the next pile to perform repeated construction on the next pile.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (7)
1. The utility model provides an opening tubular pile's stake end slip casting device, a serial communication port, including shrouding and sleeve pipe, the shrouding is fixed in opening tubular pile's pile bolck, set up on the shrouding the sleeve pipe is used for connecting the slip casting hose of grouting pump, opening tubular pile is both ends open-ended steel-pipe pile or prefabricated high-strength steel pipe concrete tubular pile.
2. The pile-end grouting device according to claim 1, characterized in that the sleeve is welded centrally to the closing plate, and is a steel sleeve.
3. The pile-end grouting device of claim 1, wherein the sealing plate is a grouting sealing plate, the grouting sealing plate being a steel plate.
4. The pile tip grouting device of claim 3, wherein the grouting sealing plate has dry bolt holes.
5. The pile tip grouting device of claim 4, wherein the bolt hole diameter is 27 mm.
6. A pile end grouting method of an open tubular pile is characterized by comprising the following steps:
sinking the open tubular pile into the soil layer, and sinking the open tubular pile into the soil layer section by section until the design elevation is reached;
digging a soil body to expose the pile top of the open tubular pile, and fixedly connecting the pile top of the open tubular pile with the sealing plate of the pile end grouting device;
injecting water from the sleeve at high pressure by using a high-pressure grouting pump, and dredging a grouting pipeline;
injecting cement slurry from the casing pressure by using a high-pressure grouting pump until the cement slurry is discharged from the pile bottom;
and taking out the pile end grouting device from the pile top.
7. The method of using a pile tip grouting device according to claim 7, characterised in that the minimum value of the minimum rated pressure of the high pressure grouting pump is 10 Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292311.6A CN113832956A (en) | 2021-11-02 | 2021-11-02 | Pile end grouting device and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292311.6A CN113832956A (en) | 2021-11-02 | 2021-11-02 | Pile end grouting device and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113832956A true CN113832956A (en) | 2021-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111292311.6A Pending CN113832956A (en) | 2021-11-02 | 2021-11-02 | Pile end grouting device and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113832956A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411745A (en) * | 2022-02-25 | 2022-04-29 | 上海同人里岩土工程技术有限公司 | Post-grouting device for pile end of steel pipe pile and construction method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505684A (en) * | 2011-11-02 | 2012-06-20 | 河海大学 | Hollow stiffness-core slurry-solidified discrete material pile and construction method thereof |
| CN104234055A (en) * | 2014-09-24 | 2014-12-24 | 顾孙平 | Precast pile post-grouting device and precast pile post-grouting process |
| CN206681002U (en) * | 2017-04-22 | 2017-11-28 | 青岛博海建设集团有限公司 | A kind of complicated geological soil layer Self-drilling hollow grouting anchoring-bolt |
| CN111236226A (en) * | 2020-04-13 | 2020-06-05 | 北京中岩大地科技股份有限公司 | Grouting type prestressed pipe pile and construction method thereof |
| CN111236211A (en) * | 2020-03-17 | 2020-06-05 | 上海斐晟企业管理有限公司 | Grouting squeezing-expanding prestressed pipe pile and construction method thereof |
| CN111519618A (en) * | 2020-06-02 | 2020-08-11 | 上海斐晟企业管理有限公司 | Post-grouting device for prestressed pipe pile and construction method thereof |
| CN112376571A (en) * | 2020-11-23 | 2021-02-19 | 中建一局集团建设发展有限公司 | Pile side and pile end integrated grouting device and construction method thereof |
-
2021
- 2021-11-02 CN CN202111292311.6A patent/CN113832956A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505684A (en) * | 2011-11-02 | 2012-06-20 | 河海大学 | Hollow stiffness-core slurry-solidified discrete material pile and construction method thereof |
| CN104234055A (en) * | 2014-09-24 | 2014-12-24 | 顾孙平 | Precast pile post-grouting device and precast pile post-grouting process |
| CN206681002U (en) * | 2017-04-22 | 2017-11-28 | 青岛博海建设集团有限公司 | A kind of complicated geological soil layer Self-drilling hollow grouting anchoring-bolt |
| CN111236211A (en) * | 2020-03-17 | 2020-06-05 | 上海斐晟企业管理有限公司 | Grouting squeezing-expanding prestressed pipe pile and construction method thereof |
| CN111236226A (en) * | 2020-04-13 | 2020-06-05 | 北京中岩大地科技股份有限公司 | Grouting type prestressed pipe pile and construction method thereof |
| CN111519618A (en) * | 2020-06-02 | 2020-08-11 | 上海斐晟企业管理有限公司 | Post-grouting device for prestressed pipe pile and construction method thereof |
| CN112376571A (en) * | 2020-11-23 | 2021-02-19 | 中建一局集团建设发展有限公司 | Pile side and pile end integrated grouting device and construction method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411745A (en) * | 2022-02-25 | 2022-04-29 | 上海同人里岩土工程技术有限公司 | Post-grouting device for pile end of steel pipe pile and construction method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20221111 Address after: 201304 floors 1-2, building 4, No. 1628, Lizheng Road, Lingang xinpian District, Pudong New Area, Shanghai Applicant after: Shanghai tongrenli Geotechnical Engineering Technology Co.,Ltd. Address before: 200086 room 3653q, No.9, Lane 360, Feihong Road, Hongkou District, Shanghai Applicant before: SHANGHAI FEISHENG ENTERPRISE MANAGEMENT Co.,Ltd. |
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| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211224 |
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| RJ01 | Rejection of invention patent application after publication |