CN115748670A - High-pile wharf socket-type prefabricated pile core and pile cap structure and construction method thereof - Google Patents
High-pile wharf socket-type prefabricated pile core and pile cap structure and construction method thereof Download PDFInfo
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- CN115748670A CN115748670A CN202211490080.4A CN202211490080A CN115748670A CN 115748670 A CN115748670 A CN 115748670A CN 202211490080 A CN202211490080 A CN 202211490080A CN 115748670 A CN115748670 A CN 115748670A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The invention discloses a socket type prefabricated pile core and pile cap structure of a high-pile wharf, which comprises a pile core; the pile cap is arranged above the pile core, the pile core and the pile cap are integrally cast by concrete, a pile core reinforcement cage is embedded in the pile core, part of the pile core reinforcement cage extends into the pile cap, the pile cap reinforcement cage is arranged in the pile cap, and a ring-shaped groove is arranged at the position, close to the pile core, of the bottom of the pile cap; two channel holes which are communicated along the height direction of the pile cap are arranged in the pile cap, wherein at least one channel hole is used for grouting, and the other channel hole is used for overflowing the grout; and the grout stopping structure is arranged at the bottom of the pile core. The invention has direct socket installation and positioning and grouting connection of the intelligent grouting pump, avoids a plurality of links such as welding corbels or fixing anchor ears, erecting templates, binding reinforcing steel bars, pouring concrete, removing templates and the like in site casting, greatly reduces the site construction time and labor consumption and improves the work efficiency.
Description
Technical Field
The invention relates to the field of pile cores and pile caps. More particularly, the invention relates to a socket type prefabricated pile core and pile cap structure of a high-pile wharf and a construction method thereof.
Background
The high-pile wharf in China mostly comprises a pile core pile cap structure, and the pile core pile cap is cast-in-place construction. And (3) pile core construction, namely, firstly putting down a pile core reinforcement cage of the pile core and then pouring pile core concrete. And after the strength of the pile core concrete reaches a certain strength, constructing a pile cap. And (3) pile cap construction, namely welding brackets or fixing hoops on the steel pipe piles to serve as a bottom membrane supporting structure, erecting a bottom template, binding reinforcing steel bars, erecting a side template, and then pouring concrete. And after the concrete reaches a certain strength, sequentially removing the side mold, the bottom film, the bracket or the anchor ear to complete pile cap construction. At present, except that a pile core pile cap still adopts cast-in-place construction, other upper structures (cross beams, longitudinal beams and panels) of a high-pile wharf are prefabricated and assembled.
In coastal areas of China, pile cores and pile caps are mostly located in tide level change areas, construction operation of low tide level windows needs to be driven, and the construction operation cannot be completed in one window period, so that tide rising time periods are caused, reinforcing steel bars and templates are soaked and eroded by seawater, and concrete pouring is also influenced.
Therefore, the cast-in-place construction of the pile core pile cap mainly has the following defects: (1) The construction process of the cast-in-place pile core pile cap is various, and window removing operation is needed when the cast-in-place pile core pile cap is in a tide level change area, so that the construction time is long; (2) After being soaked in seawater, the steel bars and the templates are rusted, so that the construction quality is influenced; (3) The water level change area can work for a long time, which is not beneficial to the safety of personnel operation; the pile core pile cap still adopts cast-in-place construction, and the development of full-assembly construction of the high-pile wharf is restricted.
Disclosure of Invention
To achieve these objects and other advantages in accordance with the purpose of the invention, a preferred embodiment of the present invention provides a high pile wharf socket type prefabricated pile core and pile cap structure, comprising:
pile core;
the pile cap is arranged above the pile core, the pile core and the pile cap are integrally cast by concrete, a pile core reinforcement cage is embedded in the pile core, part of the pile core reinforcement cage extends into the pile cap, the pile cap reinforcement cage is arranged in the pile cap, and a ring-shaped groove is formed at the position, close to the pile core, of the bottom of the pile cap; two channel holes which are communicated along the height direction of the pile cap are arranged in the pile cap, wherein at least one channel hole is used for grouting, and the other channel hole is used for overflowing the grout; and
and the grout stopping structure is arranged at the bottom of the pile core.
According to a preferred embodiment of the present invention, the high pile wharf socket type prefabricated pile core and pile cap structure further comprises external leakage steel bars, which are partially vertically inserted into the pile cap.
According to a preferred embodiment of the present invention, the grout stop structure comprises a circular plate and a water-swellable rubber which is looped around the circular plate.
According to a preferred embodiment of the present invention, the passage hole penetrates along a height direction of the pile cap, and a lower end of the passage hole communicates with the annular groove.
The invention provides a construction method of a socket type prefabricated pile core and pile cap structure of a high-pile wharf, which comprises the following steps:
s1, prefabricating a socket type prefabricated pile core and pile cap structure of a high-pile wharf;
s2, driving the steel pipe pile;
s3, inserting and installing a prefabricated high-pile wharf socket type prefabricated pile core and a pile cap structure into the steel pipe pile, wherein the pile core is inserted into the steel pipe pile, and the pile cap is placed at the top of the steel pipe pile;
s3, starting the integrated intelligent grouting equipment to weigh and mix materials to obtain stirred slurry,
and S4, selecting one of the two channel holes in the pile cap as a grouting hole, using the other channel hole as a grout overflow hole, inserting a grouting pipe into the grouting hole, grouting until the gap between the pile core and the steel pipe, the annular groove and the channel holes are completely filled with slurry, and finishing grouting.
According to a preferred embodiment of the present invention, in step S2, after the steel pipe pile is driven and cut to a designed elevation, a sealing structure is installed at the top of the steel pipe pile, the sealing structure includes a sealing ring rubber and a pressing device, the sealing ring rubber is ring-shaped and is sleeved outside the top end of the steel pipe pile, and the pressing device is ring-shaped and is sleeved on the sealing ring rubber.
According to a preferred embodiment of the invention, the integrated intelligent grouting equipment comprises a shell, a storage bin, a material weighing device, a material mixing bin, a spiral material conveying pump, a water supply pump and a material mixing pump, wherein the shell is divided into a left chamber and a right chamber, the left chamber is sequentially divided into the storage bin, the material mixing bin and a conveying bin by a first partition plate and a second partition plate from top to bottom, the material weighing device is arranged in the storage bin, the first partition plate is provided with an opening, a first electric valve and a vibration ring are arranged on the first partition plate, the flow rate of powder is controlled by controlling the opening degree of the first electric valve and the vibration rate of the vibration ring, the water supply pump is arranged in the right chamber, and the water supply pump supplies water to the material mixing bin; and a second electric valve is arranged on the second partition plate and faces the feed inlet of the spiral delivery pump.
According to a preferred embodiment of the present invention, step S4, selecting one of the two channel holes in the pile cap as a grouting hole and the other channel hole as a grout overflow hole, inserting a grouting pipe into the grouting hole, grouting until the inside of the pile core reinforcement cage of the pile core, the inside of the annular groove, and the channel hole are all filled with grout, and ending grouting specifically includes the following operations:
selecting one of the two channel holes in the pile cap as a grouting hole, taking the other channel hole as a grout overflow hole, inserting a grouting pipe into the grouting hole, and controlling the distance between a grout outlet at the bottom of the grouting pipe and a grout stop structure to be about 5cm at first;
after the grouting material is mixed, the second electric valve is controlled to be opened, the material is fed into the spiral delivery pump, the spiral delivery pump is started, the grouting is formally grouted, the grouting pipe is slowly lifted in stages in the grouting process, the grouting outlet of the grouting pipe is always ensured to be below the liquid level of the grouting material, particularly, when the top surface of the grouting pipe is close to the top of the steel pipe pile, the grouting speed is controlled well until the pile core reinforcement cage of the pile core, the annular groove and the passage hole are completely filled with the grouting material, and the grouting is finished.
The invention at least comprises the following beneficial effects:
1. the socket type prefabricated pile core and pile cap structure is prefabricated and formed in a factory or a prefabricated yard in advance, and compared with cast-in-place construction, the risk that reinforcing steel bars and templates are soaked by water and concrete pouring is affected by damp is avoided, and the quality is guaranteed;
2. the socket type prefabricated pile core and pile cap structure is transported to the site, and is directly connected in socket type installation, positioning and grouting, so that a plurality of links such as welding corbels or fixing anchor ears, erecting templates, binding steel bars, pouring concrete, removing templates and the like in site casting are avoided, the site construction time and the labor consumption are greatly reduced, the work efficiency is improved, and the safety of personnel is guaranteed;
3. after the socket type prefabricated pile core and the pile cap structure are installed in a socket type mode, grouting can be performed underwater, and the influence of water level is small;
4. the integrated intelligent grouting equipment integrates multiple functions of storing, weighing, mixing, supplying water, pumping, intelligent control, detection and the like, has high intelligent degree, controllable grouting, measurability and high efficiency, and ensures the quality;
5. the invention breaks through the bottleneck that the pile core pile cap still adopts cast-in-place construction in China at present, and promotes the development of the full-assembly construction of the high-pile wharf.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural view of a socket type prefabricated pile core and pile cap structure of the high-pile wharf.
Fig. 2 is a partially enlarged view of a point a in fig. 1.
FIG. 3 is a schematic structural diagram of a slurry stopping structure according to the present invention.
Fig. 4 is a side view schematically showing a steel pipe pile according to the present invention.
Fig. 5 is a schematic cross-sectional view of a seal structure in the present invention.
FIG. 6 is a schematic structural diagram of step S3 in the present invention.
FIG. 7 is a schematic structural diagram of step S4 in the present invention.
Fig. 8 is a partially enlarged view of fig. 7 at B.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments described below are by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
As shown in fig. 1 to 8, a preferred embodiment of the present invention provides a socket type prefabricated pile core and pile cap structure for a high pile wharf, comprising:
a pile core 100;
the pile cap 200 is arranged above the pile core 100, the pile core and the pile cap are integrally cast by concrete, the pile core reinforcement cage 300 is embedded in the pile core 100, part of the pile core reinforcement cage extends into the pile cap 200, the pile cap reinforcement cage 240 is arranged in the pile cap 200, and a ring of annular groove 210 is formed at the position, close to the pile core 100, of the bottom of the pile cap 200; two channel holes 220 penetrating along the height direction of the pile cap 200 are arranged in the pile cap 200, wherein at least one channel hole 220 is used for grouting, and the other channel hole 220 is used for overflowing the grout; the top of the pile cap 200 is provided with a lifting lug 230, an
And the grout stopping structure 400 is arranged at the bottom of the pile core 100.
The socket type prefabricated pile core and pile cap structure is transported to the site, and is directly installed, positioned and connected in a grouting way, so that a plurality of links such as welding brackets or fixing anchor ears, erecting templates, binding steel bars, pouring concrete, removing templates and the like in site casting are avoided, the site construction time and the labor consumption are greatly reduced, the work efficiency is improved, and the personnel safety is guaranteed;
in the above embodiment, the main function of the annular groove 210 is: firstly, the installation and the positioning of a pile cap of an auxiliary pile core are realized, and secondly, the top of the steel pipe pile 600 is coated with grouting in the annular groove, so that the later-stage corrosion is avoided;
in another preferred embodiment, the high-pile wharf socket-type prefabricated pile core and pile cap structure further comprises external leakage steel bars 500, and a part of the external leakage steel bars is vertically inserted into the pile cap 200. The outer steel bar 500 is used as a connecting node for prefabricating the cross beam and the longitudinal beam above the pile cap at the later stage, concrete is cast in the connecting node, and the outer steel bar of the pile cap extends into the connecting node to be conveniently connected with the cross beam and the longitudinal beam.
In another preferred scheme, only thick liquid structure 400 includes circular slab 410 and water-swellable rubber 420, water-swellable rubber 420 surrounds the circular slab round, the circular slab has the multilayer, adopts bolt 430 fixed connection, and water-swellable rubber 420 can expand after meeting the water, and then plays the sealed thick liquid effect of only having good.
In another preferred embodiment, the passage hole 220 penetrates through the pile cap 200 in the height direction, and the lower end of the passage hole 220 is communicated with the annular groove 210, so that concrete can be injected into the pile core reinforcement cage of the pile core.
The invention provides a construction method of a socket type prefabricated pile core and pile cap structure of a high-pile wharf, which comprises the following steps:
s1, prefabricating a socket type prefabricated pile core and pile cap structure of a high-pile wharf;
s2, driving the steel pipe pile 600;
after the steel pipe pile 600 is driven and finished and is cut to a designed elevation, a sealing structure 800 is installed at the top of the steel pipe pile, the sealing structure 800 comprises sealing ring-shaped rubber 810 and a pressing device 820, the sealing ring-shaped rubber 810 is annular and sleeved outside the top end of the steel pipe pile 600, and the pressing device 820 is annular and sleeved on the sealing ring-shaped rubber 810.
S3, inserting and installing a prefabricated high-pile wharf socket type prefabricated pile core and a pile cap structure into the steel pipe pile 600, wherein the pile core 100 is inserted into the steel pipe pile 600, and the pile cap 200 is placed at the top of the steel pipe pile 600;
s3, starting the integrated intelligent grouting equipment to weigh and mix materials to obtain stirred slurry,
the integrated intelligent grouting equipment comprises a shell 710, a storage bin 720, a material weighing device 730, a material mixing bin 740, a spiral conveying pump 750, a water supply pump 760, a material mixing pump 770, an intelligent control and monitoring system and an operation display screen, wherein the shell 710 is divided into a left chamber and a right chamber, the left chamber is divided into the storage bin 720, the material mixing bin 740 and a conveying bin by a first partition plate 711 and a second partition plate 712 sequentially from top to bottom, the material weighing device 730 is arranged in the storage bin 720, the first partition plate 711 is provided with an opening and provided with a first electric valve 780 and a vibration ring 790, the flow rate of powder is controlled by controlling the opening and closing degree of the first electric valve 780 and the vibration rate of the vibration ring 790, the water supply pump 760 is arranged in the right chamber, and the water supply pump 760 supplies water to the material mixing bin 740; and a second electric valve 791 is arranged on the second partition plate 712, and the second electric valve 791 faces to the feed inlet of the spiral material conveying pump.
Firstly, powder is transported into the storage bin 720, the weighing device 730 measures the weight of the powder, the first electric valve 780 and the starting vibration ring 790 are opened, the powder is transported into the mixing bin 740, and the material transporting speed is controlled by the opening size of the first electric valve 780 and the vibration speed of the vibration ring 790. After the required amount of powder is conveyed to the mixing bin 740, the water supply pump 10-4 is started to supply water and the mixing pump 10-8 is started to mix the materials.
S4, selecting one passage hole 220 of the two passage holes 220 in the pile cap 200 as a grouting hole, using the other passage hole 220 as a grout overflow hole, inserting a grouting pipe into the grouting hole, and controlling the distance between a grout outlet at the bottom of the grouting pipe and a grout stopping structure 400 to be about 5cm at first;
after the grouting material is mixed, the second electric valve 791 is controlled to be opened, feeding is carried out in the spiral delivery pump 750, the spiral delivery pump 750 is started, grouting is carried out formally, the grouting pipe is slowly lifted in stages in the grouting process, the grouting speed is controlled always when the grout outlet of the grouting pipe is ensured to be below the level of the grouting material, and particularly when the top surface of the grouting material is close to the top of the steel pipe pile 600, the grouting speed is controlled until the inside of the pile core reinforcement cage 300 of the pile core 100, the inside of the annular groove 210 and the inside of the channel hole 220 are completely filled with the grouting material, and grouting is finished.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a prefabricated stake core of high stake pier socket joint formula and pile cap structure which characterized in that includes:
pile core;
the pile cap is arranged above the pile core, the pile core and the pile cap are integrally cast by concrete, a pile core reinforcement cage is embedded in the pile core, part of the pile core reinforcement cage extends into the pile cap, the pile cap reinforcement cage is arranged in the pile cap, and a ring-shaped groove is arranged at the position, close to the pile core, of the bottom of the pile cap; two channel holes which are communicated along the height direction of the pile cap are arranged in the pile cap, wherein at least one channel hole is used for grouting, and the other channel hole is used for overflowing the grout; and
and the grout stopping structure is arranged at the bottom of the pile core.
2. The elevated pile wharf socket prefabricated pile core and pile cap structure of claim 1, further comprising a breakout bar partially vertically inserted into the pile cap.
3. The elevated pile wharf socket prefabricated pile core and pile cap structure of claim 1, wherein the grout stop structure comprises a circular plate and water-swellable rubber surrounding the circular plate in a circle.
4. The piling dockside socket precast pile core and pile cap structure of claim 1, wherein said passage hole is through along the height direction of said pile cap, and the lower end of said passage hole is connected to said annular groove.
5. A construction method of the high pile wharf socket type prefabricated pile core and pile cap structure as claimed in any one of claims 1 to 4, characterized by comprising the following steps:
step S1, prefabricating a socket type prefabricated pile core and pile cap structure of a high-pile wharf;
s2, driving the steel pipe pile;
s3, inserting and installing a prefabricated high-pile wharf socket type prefabricated pile core and a pile cap structure into the steel pipe pile, wherein the pile core is inserted into the steel pipe pile, and the pile cap is placed at the top of the steel pipe pile;
s3, starting the integrated intelligent grouting equipment to weigh and blend the materials to obtain a well-blended slurry,
and S4, selecting one of the two channel holes in the pile cap as a grouting hole, taking the other channel hole as a grout overflow hole, inserting a grouting pipe into the grouting hole, grouting until the gap between the pile core and the steel pipe, the annular groove and the channel hole are completely filled with grout, and finishing grouting.
6. The construction method of the high-pile wharf socket type prefabricated pile core and pile cap structure according to claim 5, wherein in the step S2, after the steel pipe pile is driven and cut to a designed elevation, a sealing structure is installed at the top of the steel pipe pile, the sealing structure comprises a sealing ring rubber and a pressing device, the sealing ring rubber is annular and is sleeved outside the top end of the steel pipe pile, and the pressing device is annular and is sleeved on the sealing ring rubber.
7. The construction method of the high pile wharf socket type prefabricated pile core and pile cap structure according to claim 5, wherein the integrated intelligent grouting equipment comprises a shell, a storage bin, a material weighing device, a material mixing bin, a spiral material conveying pump, a water supply pump and a material mixing pump, the shell is divided into a left chamber and a right chamber, the left chamber is divided into the storage bin, the material mixing bin and a conveying bin by a first partition plate and a second partition plate in sequence from top to bottom, the material weighing device is arranged in the storage bin, the first partition plate is provided with an upper opening, a first electric valve and a vibration ring are arranged on the first partition plate, the flow rate of powder is controlled by controlling the opening degree of the first electric valve and the vibration rate of the vibration ring, the water supply pump is arranged in the right chamber, and the water supply pump supplies water to the material mixing bin; and a second electric valve is arranged on the second partition plate and faces the feed inlet of the spiral delivery pump.
8. The construction method of the socket-type precast pile core and pile cap structure of the high-pile wharf according to claim 7, wherein in step S4, one of two passage holes in the pile cap is selected as a grouting hole, the other passage hole is selected as a grout overflow hole, a grouting pipe is inserted into the grouting hole, grouting is performed until the inside of the pile core reinforcement cage of the pile core, the inside of the annular groove and the inside of the passage hole are all filled with grout, and grouting is finished, which specifically comprises the following operations:
selecting one of the two channel holes in the pile cap as a grouting hole, taking the other channel hole as a grout overflow hole, inserting a grouting pipe into the grouting hole, and controlling the distance between a grout outlet at the bottom of the grouting pipe and the grout stop structure to be about 5cm at first;
after the grouting material is mixed, the second electric valve is controlled to be opened, the material is fed into the spiral delivery pump, the spiral delivery pump is started, the grouting is formally grouted, the grouting pipe is slowly lifted in stages in the grouting process, the grouting outlet of the grouting pipe is always ensured to be below the liquid level of the grouting material, particularly, when the top surface of the grouting pipe is close to the top of the steel pipe pile, the grouting speed is controlled well until the pile core reinforcement cage of the pile core, the annular groove and the passage hole are completely filled with the grouting material, and the grouting is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211490080.4A CN115748670A (en) | 2022-11-25 | 2022-11-25 | High-pile wharf socket-type prefabricated pile core and pile cap structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211490080.4A CN115748670A (en) | 2022-11-25 | 2022-11-25 | High-pile wharf socket-type prefabricated pile core and pile cap structure and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN115748670A true CN115748670A (en) | 2023-03-07 |
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ID=85337924
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211490080.4A Pending CN115748670A (en) | 2022-11-25 | 2022-11-25 | High-pile wharf socket-type prefabricated pile core and pile cap structure and construction method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN115748670A (en) |
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2022
- 2022-11-25 CN CN202211490080.4A patent/CN115748670A/en active Pending
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