CN110952546A - Tubular pile construction method - Google Patents
Tubular pile construction method Download PDFInfo
- Publication number
- CN110952546A CN110952546A CN201911099949.0A CN201911099949A CN110952546A CN 110952546 A CN110952546 A CN 110952546A CN 201911099949 A CN201911099949 A CN 201911099949A CN 110952546 A CN110952546 A CN 110952546A
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- Prior art keywords
- pile
- tubular
- grouting pipe
- tubular pile
- grouting
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- 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
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- 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
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- 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
- E02D7/02—Placing by driving
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/0023—Slurry
Abstract
The invention relates to a tubular pile construction method, which comprises the steps of obtaining pile position information; fixing a first section of grouting pipe in the first pipe pile by using a grouting pipe fixing device; sinking the first tubular pile fixed with the first section of grouting pipe; fixing the next section of grouting pipe in the next pipe pile by using a grouting pipe fixing device; carrying out pile splicing treatment on the next tubular pile and the previous tubular pile which is subjected to pile sinking to obtain a post-pile-splicing tubular pile; and (4) sinking the pile of the pile-splicing back tubular pile until the pile-splicing back tubular pile sinks to the preset depth, and returning to the step of fixing the next section of grouting pipe in the next tubular pile by using the grouting pipe fixing device until all pile positions sink. When the tubular pile is constructed, the grouting pipes are fixed in the tubular pile, and then the plurality of tubular piles are connected, so that the length of the grouting pipes can be effectively increased, and the grouting pipes after pile sinking can bear larger bearing capacity.
Description
Technical Field
The invention relates to building construction, in particular to a tubular pile construction method.
Background
Along with the development of economy, various huge buildings are more and more, and when the huge buildings are built, grouting pipes are generally needed to be used in the construction process, and can play an important role in bearing in various buildings.
In the prior art, the grouting pipes are mostly hollow cylinders with certain length and are limited by transportation conditions and the height of a pile sinking (driving) frame, and the pile sinking depth of a single grouting pipe cannot bear larger bearing capacity.
Disclosure of Invention
In view of the above, it is necessary to provide a pipe pile construction method capable of making the bearing capacity of a grouting pipe larger, in view of the problems in the prior art.
A tubular pile construction method comprises the following steps:
acquiring pile position information;
fixing a first section of grouting pipe in a first pipe pile by using a grouting pipe fixing device, and moving the first pipe pile fixed with the first section of grouting pipe to a preset pile position;
sinking the first tubular pile fixed with the first section of grouting pipe until the first tubular pile is sunk to a preset depth;
fixing the next section of grouting pipe in the next tubular pile by using a grouting pipe fixing device, and moving the next tubular pile fixed with the next section of grouting pipe to the pile sinking position of the first tubular pile;
carrying out pile splicing treatment on the next tubular pile and the previous tubular pile which is subjected to pile sinking to obtain a post-pile-splicing tubular pile;
and (4) sinking the pile of the pile-splicing back tubular pile until the pile-splicing back tubular pile sinks to the preset depth, and returning to the step of fixing the next section of grouting pipe in the next tubular pile by using the grouting pipe fixing device until all pile positions sink.
In one embodiment, the pile position information includes pile position information and pile depth information.
In one embodiment, the first section of grouting pipe is fixed in the first pipe pile by using a grouting pipe fixing device, which comprises:
placing the first tubular pile on a ground support, and placing the first section of grouting pipe in a pile cavity of the first tubular pile;
fixing the first section of grouting pipe in the pile cavity through the grouting pipe fixing device;
connecting the first section of grouting pipe with a grout outlet pipe of the grouting pipe fixing device in a communicating manner;
and welding an upper end plate of the grouting pipe fixing device with a pile cap of the first tubular pile.
In one embodiment, the pile sinking method comprises a hammering method, a vibration method and a static pile pressing method when pile sinking is carried out.
In one embodiment, the pile splicing process of the next tubular pile and the previous tubular pile after pile sinking includes:
lifting the next tubular pile to a position which is in the same vertical direction with the previous tubular pile;
connecting the grouting pipe in the next tubular pile with the grouting pipe in the previous tubular pile;
carrying out pile cap alignment connection on the next tubular pile and the previous tubular pile, and carrying out pile extension checking;
and after pile splicing checking is passed, obtaining the post-pile-splicing tubular pile.
In one embodiment, the pile extension checking comprises pile extension verticality checking and pile extension straightness checking.
In one embodiment, after pile sinking of all pile positions is completed, the method further comprises: and grouting each pile position by using the prepared grout.
In one embodiment, the slurry is formulated from cement and water, the ratio of water to cement in the slurry being 0.5 to 0.55.
In one embodiment, the amount of cement used per pipe pile is 0.3 ton to 0.6 ton.
In one embodiment, the grouting treatment of each pile position by using the prepared grout comprises the following steps: and injecting the prepared grout into the grouting pipes corresponding to the pile positions by using a grouting pump.
According to the pipe pile construction method, pile position information is acquired; fixing a first section of grouting pipe in a first pipe pile by using a grouting pipe fixing device, and moving the first pipe pile fixed with the first section of grouting pipe to a preset pile position; sinking the first tubular pile fixed with the first section of grouting pipe until the first tubular pile is sunk to a preset depth; fixing the next section of grouting pipe in the next tubular pile by using a grouting pipe fixing device, and moving the next tubular pile fixed with the next section of grouting pipe to the pile sinking position of the first tubular pile; carrying out pile splicing treatment on the next tubular pile and the previous tubular pile which is subjected to pile sinking to obtain a post-pile-splicing tubular pile; and (4) sinking the pile of the pile-splicing back tubular pile until the pile-splicing back tubular pile sinks to the preset depth, and returning to the step of fixing the next section of grouting pipe in the next tubular pile by using the grouting pipe fixing device until all pile positions sink. When the tubular pile is constructed, the grouting pipes are fixed in the tubular pile, and then the plurality of tubular piles are connected, so that the length of the grouting pipes can be effectively increased, and the grouting pipes after pile sinking can bear larger bearing capacity.
Drawings
FIG. 1 is a schematic flow chart of a pipe pile construction method in one embodiment;
fig. 2 is a schematic view illustrating a process of fixing a first section of grouting pipe in a first pipe pile by using a grouting pipe fixing device in one embodiment;
fig. 3 is a view showing an example of fixing a grout tube in a pipe pile using a grout tube fixing device in one embodiment;
fig. 4 is a schematic flow chart illustrating a process of connecting the next tubular pile with the previous tubular pile after pile sinking in one embodiment;
fig. 5 is a schematic flow chart of a pipe pile construction method in another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, as shown in fig. 1, there is provided a pipe pile construction method, including the steps of:
step S100, pile position information is obtained;
s200, fixing a first section of grouting pipe in a first pipe pile by using a grouting pipe fixing device, and moving the first pipe pile fixed with the first section of grouting pipe to a preset pile position;
step S300, pile sinking is carried out on the first tubular pile fixed with the first section of grouting pipe until the pile sinking of the first tubular pile reaches a preset depth;
step S400, fixing a next section of grouting pipe in a next pipe pile by using a grouting pipe fixing device, and moving the next pipe pile fixed with the next section of grouting pipe to a pile sinking position of the first pipe pile;
step S500, pile splicing treatment is carried out on the next tubular pile and the previous tubular pile which is sunk to obtain a pile-spliced tubular pile;
and S600, sinking the pile of the pile-spliced rear tubular pile until the pile-spliced rear tubular pile is sunk to a preset depth, and returning to the step of fixing the next section of grouting pipe in the next tubular pile by using the grouting pipe fixing device until all pile positions are sunk.
The present embodiment provides a tubular pile construction method, in the tubular pile construction, the grouting pipes are fixed in the tubular pile, and then the pile extension processing is performed on a plurality of tubular piles, so that the length of the grouting pipes can be effectively increased, and the grouting pipes after pile sinking can bear a larger bearing capacity.
In one embodiment, pile position information may be obtained in advance by measuring pile positions, and the pile position information includes pile driving position information and pile driving depth information. Specifically, pile positions are determined according to a pile bitmap and axis control points, the pile positions are determined one by one, steel bar marked piles are driven, a circle with the circle center coinciding with the marked pile and the diameter equal to that of the pipe pile is drawn on the ground near the marked pile by lime, pile inserting centering is facilitated, and pile positions are kept correct. In the pile position measuring and placing area, a protective marking rope fence is required to be arranged, and non-construction personnel and vehicles are not allowed to enter randomly.
In one embodiment, as shown in fig. 2, the fixing of the first section of grouting pipe in the first pipe pile using a grouting pipe fixing device comprises:
step S210, placing the first tubular pile on a ground support, and placing the first section of grouting pipe in a pile cavity of the first tubular pile;
step S220, fixing the first section of grouting pipe in the pile cavity through the grouting pipe fixing device;
step S230, communicating and connecting the first section of grouting pipe with a grout outlet pipe of the grouting pipe fixing device;
and S240, welding an upper end plate of the grouting pipe fixing device with a pile cap of the first tubular pile.
Specifically, as shown in fig. 3, in order to fix the grouting pipe in the tubular pile by using the grouting pipe fixing device, the first tubular pile is firstly placed on the ground support, the first section of grouting pipe is placed into the pile cavity of the first tubular pile, the grouting pipe fixing device is fixed in the pile cavity, a pile tip is prepared to be installed, the grouting pipe and the grout outlet pipe are screwed, the upper end plate of the pile tip is aligned with the pile cap of the tubular pile, and after impurities are removed and rust is removed from the welding part between the grouting pipe and the pile tip, the welding part is welded according to the design requirements, so that the pile tip and the pile head form a firm whole.
In one embodiment, the pile sinking method includes a hammering method, a vibration method, and a static pile pressing method when the pile sinking is performed.
Specifically, taking the hammering method for pile sinking as an example, when the first tubular pile is sunk, a guide plate clamp or a pile hoop is used for embedding and fixing the pile in two guide posts of a pile frame, and after the pile position and the verticality are corrected, a hammer and a pile cap are pressed on the pile top to start pile sinking. The central lines of the pile hammer and the pile cap are consistent with the central line of the pile body, the pile top is uneven, and the pile is leveled by applying thick paper boards. When the pile sinking is started, the hammer is slightly pressed and the counter hammer is slightly tapped, the vertical consistency of the pile body, the pile frame, the pile hammer and the like is observed, and the pile sinking can be switched to normal. The deviation of verticality when the pile is inserted must not exceed 0.5%.
In one embodiment, as shown in fig. 4, the pile splicing process of the next tubular pile and the previous tubular pile after pile sinking includes:
step S510, hoisting the next tubular pile to a position in the same vertical direction as the previous tubular pile;
step S520, connecting the grouting pipe in the next tubular pile with the grouting pipe in the previous tubular pile;
step S530, carrying out pile cap alignment connection on the next tubular pile and the previous tubular pile, and carrying out pile extension checking;
and step S540, obtaining the pile after pile splicing checking is passed.
And the pile splicing checking comprises pile splicing verticality checking and pile splicing smoothness checking. Specifically, taking the second tubular pile which is not sunk as the next tubular pile and the first tubular pile which is sunk as the previous tubular pile as an example, the second tubular pile is placed, and the second section of grouting pipe is installed in place. And (3) positioning the second tubular pile by using a crane, connecting the second section of grouting pipe with the first section of grouting pipe, aligning the pile cap of the second tubular pile with the pile cap of the first tubular pile after adjusting the grouting pipe fixing device at the pile end, checking the verticality and the pile connecting straightness of the pile, and starting pile sinking operation after the checking is passed.
In one embodiment, as shown in fig. 5, after pile sinking is completed in all pile positions, the pipe pile construction method further includes: and step S700, grouting each pile position by using the prepared grout.
Specifically, grouting construction is carried out 2-3 days after pile sinking of the tubular pile is completed. The grouting slurry proportion and the cement consumption of each set of tubular pile are configured according to the design drawing. The cement mortar is prepared by using P.O42.5 ordinary portland cement and tap water generally, the water-cement ratio of the mortar is controlled within the range of 0.5-0.55, and the cement consumption of each pile is controlled within the range of 0.3-0.6 ton. The water-cement ratio should be strictly controlled when the grout is prepared, water should be added to each barrel of grout during mixing until reaching the water quantity mark line, then cement is put in according to the requirement, the cement is put in uniformly, the stirring time is sufficient, namely, the grout for each hole is prepared in advance, and the grout is continuously stirred before being injected, so as to prevent the grout from being separated into layers.
In one embodiment, the grouting treatment is performed on each pile position by using the prepared grout, and the grouting treatment comprises the following steps: and injecting the prepared grout into the grouting pipes corresponding to the pile positions by using a grouting pump.
Specifically, after the grout is prepared and the grouting pipes are respectively connected with the grouting pump, grouting operation is performed. The grouting pressure is controlled within the range of 1.8-3.2 Mpa, and the grouting flow is 10-14L/min. The grouting stopping standards are as follows: the grouting pressure reaches the designed value and the grouting cement consumption of each pile reaches the designed value. And sealing the grouting pipe after grouting is finished.
The pipe pile construction method provided by the embodiment can be suitable for the pile bearing foundation form of important plants and equipment, because the soil layer soil quality of the soil foundation where the pile foundation is located is poor, negative frictional resistance is easily generated or the pile foundation has the possibility of later settlement, when the design adopts the post-construction grouting of the pipe pile to improve the bearing capacity of the pile end or resist the negative frictional resistance, the prevention of the post-construction settlement of a soft soil foundation pretensioning method prestressed concrete pipe pile (PHC pipe pile) can be solved, the bearing capacity of the pile end is improved, and the influence of the negative frictional resistance on the later settlement of the pipe pile is overcome. The construction method overcomes the influence of the negative friction resistance at the pile side on the tubular pile, improves the pile end bearing capacity of the tubular pile and further ensures the construction quality of the tubular pile.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A tubular pile construction method is characterized by comprising the following steps:
acquiring pile position information;
fixing a first section of grouting pipe in a first pipe pile by using a grouting pipe fixing device, and moving the first pipe pile fixed with the first section of grouting pipe to a preset pile position;
sinking the first tubular pile fixed with the first section of grouting pipe until the first tubular pile is sunk to a preset depth;
fixing the next section of grouting pipe in the next tubular pile by using a grouting pipe fixing device, and moving the next tubular pile fixed with the next section of grouting pipe to the pile sinking position of the first tubular pile;
carrying out pile splicing treatment on the next tubular pile and the previous tubular pile which is subjected to pile sinking to obtain a post-pile-splicing tubular pile;
and (4) sinking the pile of the pile-splicing back tubular pile until the pile-splicing back tubular pile sinks to the preset depth, and returning to the step of fixing the next section of grouting pipe in the next tubular pile by using the grouting pipe fixing device until all pile positions sink.
2. The tubular pile construction method according to claim 1, wherein the pile position information includes pile sinking position information and pile sinking depth information.
3. The pipe pile construction method of claim 1, wherein fixing the first section of grouting pipe in the first pipe pile using a grouting pipe fixing device comprises:
placing the first tubular pile on a ground support, and placing the first section of grouting pipe in a pile cavity of the first tubular pile;
fixing the first section of grouting pipe in the pile cavity through the grouting pipe fixing device;
connecting the first section of grouting pipe with a grout outlet pipe of the grouting pipe fixing device in a communicating manner;
and welding an upper end plate of the grouting pipe fixing device with a pile cap of the first tubular pile.
4. The pipe pile construction method according to claim 1, wherein the pile sinking method includes a hammering method, a vibration method and a static pile pressing method when the pile sinking is performed.
5. The tubular pile construction method according to claim 1, wherein the pile splicing treatment of the next tubular pile and the pile-sunk previous tubular pile comprises:
lifting the next tubular pile to a position which is in the same vertical direction with the previous tubular pile;
connecting the grouting pipe in the next tubular pile with the grouting pipe in the previous tubular pile;
carrying out pile cap alignment connection on the next tubular pile and the previous tubular pile, and carrying out pile extension checking;
and after pile splicing checking is passed, obtaining the post-pile-splicing tubular pile.
6. The tubular pile construction method according to claim 5, wherein the pile extension checking comprises pile extension perpendicularity checking and pile extension smoothness checking.
7. The tubular pile construction method according to claim 1, further comprising, after pile sinking is completed in all pile positions: and grouting each pile position by using the prepared grout.
8. The pipe pile construction method according to claim 7, wherein the grout is prepared from cement and water, and the ratio of water to cement in the grout is 0.5 to 0.55.
9. The tubular pile construction method according to claim 7, wherein the amount of cement used per tubular pile is 0.3 to 0.6 ton.
10. The tubular pile construction method according to claim 7, wherein the grouting treatment of each pile position using the prepared grout comprises: and injecting the prepared grout into the grouting pipes corresponding to the pile positions by using a grouting pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911099949.0A CN110952546A (en) | 2019-11-12 | 2019-11-12 | Tubular pile construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911099949.0A CN110952546A (en) | 2019-11-12 | 2019-11-12 | Tubular pile construction method |
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| CN110952546A true CN110952546A (en) | 2020-04-03 |
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| CN201911099949.0A Pending CN110952546A (en) | 2019-11-12 | 2019-11-12 | Tubular pile construction method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203213101U (en) * | 2013-03-19 | 2013-09-25 | 浙江天润建设有限公司 | Embedding grouting combined pile |
| CN105421460A (en) * | 2015-11-16 | 2016-03-23 | 广东工业大学 | Tubular pile bottom grouting device and method |
| CN107237319A (en) * | 2017-06-20 | 2017-10-10 | 中冶天工集团有限公司 | A kind of pile tube with post jacking Grouting Pipe and its construction method |
| CN108179743A (en) * | 2018-02-09 | 2018-06-19 | 浙江大学城市学院 | A kind of synchronous grouting pile for prestressed pipe and construction method |
| CN108797587A (en) * | 2018-07-09 | 2018-11-13 | 江苏地基工程有限公司 | A kind of novel sinking construction technology of static pressed pile |
| CN109778857A (en) * | 2018-11-30 | 2019-05-21 | 北京荣创岩土工程股份有限公司 | A kind of prefabricated pile is from pilot hole device and prefabricated pile from pilot hole pile making method |
-
2019
- 2019-11-12 CN CN201911099949.0A patent/CN110952546A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203213101U (en) * | 2013-03-19 | 2013-09-25 | 浙江天润建设有限公司 | Embedding grouting combined pile |
| CN105421460A (en) * | 2015-11-16 | 2016-03-23 | 广东工业大学 | Tubular pile bottom grouting device and method |
| CN107237319A (en) * | 2017-06-20 | 2017-10-10 | 中冶天工集团有限公司 | A kind of pile tube with post jacking Grouting Pipe and its construction method |
| CN108179743A (en) * | 2018-02-09 | 2018-06-19 | 浙江大学城市学院 | A kind of synchronous grouting pile for prestressed pipe and construction method |
| CN108797587A (en) * | 2018-07-09 | 2018-11-13 | 江苏地基工程有限公司 | A kind of novel sinking construction technology of static pressed pile |
| CN109778857A (en) * | 2018-11-30 | 2019-05-21 | 北京荣创岩土工程股份有限公司 | A kind of prefabricated pile is from pilot hole device and prefabricated pile from pilot hole pile making method |
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