CN113089682A - High-strength tubular pile foundation pit supporting structure for geotechnical engineering - Google Patents
High-strength tubular pile foundation pit supporting structure for geotechnical engineering Download PDFInfo
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- CN113089682A CN113089682A CN202110294869.1A CN202110294869A CN113089682A CN 113089682 A CN113089682 A CN 113089682A CN 202110294869 A CN202110294869 A CN 202110294869A CN 113089682 A CN113089682 A CN 113089682A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 68
- 239000010959 steel Substances 0.000 claims abstract description 68
- 239000002689 soil Substances 0.000 claims abstract description 49
- 238000010276 construction Methods 0.000 claims description 10
- 239000004567 concrete Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 10
- 230000003068 static effect Effects 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 10
- 210000001503 joint Anatomy 0.000 description 5
- 238000010008 shearing Methods 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000004746 geotextile Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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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
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
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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
- E02D7/20—Placing by pressure or pulling power
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a high-strength tubular pile foundation pit supporting structure for geotechnical engineering. Has the advantages that: the invention adopts the upper sliding plate, the lower sliding plate, the soil piercing rod and the steel column, in the process of supporting the foundation pit, the bottom surface of the top cap is covered on the top surface of the top steel ring, at the moment, the top surface of the abdicating groove is abutted against the top surface of the steel column, the top cap is pressed downwards by adopting a static pile machine, the top cap pushes the pile body to enter the soil layer, after the pile body is driven to a set depth, the direction of the top cap is turned, the top surface of the abdicating groove is abutted against the top surface of the steel column, the top cap is continuously pressed downwards by using the static pile machine, the steel column is pushed downwards by the top cap, so that the upper sliding plate and the lower sliding plate are pushed downwards, the soil piercing rod is further pushed to downwards and obliquely penetrate into the soil, the soil is extended into the soil like plant rooting, the tensile resistance of the bottom of the pile body and the soil is increased.
Description
Technical Field
The invention relates to the technical field of foundation pit supporting, in particular to a high-strength tubular pile foundation pit supporting structure for geotechnical engineering.
Background
The foundation pit is a pit excavated at the designed position of the foundation according to the elevation of the foundation and the plane size of the foundation, an excavation scheme is determined according to geological and hydrological data and the conditions of buildings nearby on site before excavation, waterproof drainage work is performed, the slope can be placed for people who do not excavate deeply to stabilize, the slope is determined according to relevant construction engineering regulations, people who excavate deeper buildings and nearby buildings can excavate deeply by using a foundation pit wall supporting method and a concrete spraying wall protecting method, the large foundation pit even adopts methods of interlocking underground continuous walls and column type bored piles, etc., the soil layer outside the large foundation pit is prevented from collapsing, people who do not have influence on nearby buildings can reduce the underground water level by using a well point method, open excavation by using a slope placing method, and excavation by adopting a natural cold freezing method in regions, etc.
When the edge of a foundation pit is close to a red line area of building construction and cannot be used for slope relief, the foundation pit is usually supported in a tubular pile supporting mode, the traditional tubular pile is a PHC tubular pile, the bottom of the pile body is smooth, the bonding force with soil in the pile body is small, the anti-pulling capacity is weak, the PHC tubular pile is easy to pull out the whole pile when collapse occurs, meanwhile, the interior of most PHC tubular piles is of a hollow structure and is strong in compression resistance and shearing resistance, and the PHC tubular piles are likely to break when the soil pressure on the side is large.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a high-strength tubular pile foundation pit supporting structure for geotechnical engineering, which has the advantages of strong pulling resistance, stable and reliable structure, strong integrity and convenience for construction site enclosure, and further solves the problems in the background art.
(II) technical scheme
In order to realize the advantages of strong pulling resistance, stable and reliable structure, strong integrity and convenient construction site enclosure, the invention adopts the following specific technical scheme:
a high-strength tubular pile foundation pit supporting structure for geotechnical engineering comprises a pile body and a top cap, wherein a steel column is inserted into the pile body, an inclined sleeve is embedded in the outer wall of the bottom of the pile body, a soil piercing rod is inserted in the inclined sleeve, a main reinforcement and a spiral stirrup are bound in the pile body, the bottom surface of the pile body is fixedly connected with a pointed pile head, the top surface of the pointed pile head is welded with the main rib, the interior of the pile body is connected with an upper sliding plate in a sliding way, the bottom surface of the upper sliding plate is fixedly connected with a lower sliding plate through a connecting column, the outer wall of the lower sliding plate is in sliding butt joint with the inner wall of the pile body, the top surface of the soil pricking rod is in sliding butt joint with the bottom surfaces of the upper sliding plate and the lower sliding plate respectively, a top steel ring is arranged on the top surface of the pile body, and the bottom surface of the top steel ring is welded with the main rib, the bottom surface of the top cap is provided with a yielding groove, the diameter of the top cap is equal to that of the top steel ring, and the inner diameter of the yielding groove is equal to that of the top steel ring.
Furthermore, the outer wall of the steel column is welded with a supporting plate, the supporting plate is distributed at equal angles along the center of the top surface of the steel column, and the outer edge of the supporting plate is in sliding butt joint with the inner wall of the pile body.
Further, the pre-buried threaded sleeve that has of positive facade of pile body, and the inside threaded connection of threaded sleeve has first threaded connection head to the first threaded connection head other end passes through hexagonal post fixedly connected with second threaded connection head, the cooperation is used between the pile body has outer connecting rod and inner connecting rod, and in the outer connecting rod was pegged graft to inner connecting rod to outer connecting rod and inner connecting rod outer end all articulated through the articulated seat of second have first branch, the first branch other end articulates through first articulated seat has second branch, and the second branch other end rotates through swivelling joint seat and is connected with hexagon nut to hexagon nut and second threaded connection head threaded connection.
Furthermore, the soil piercing rods are made of steel, the surfaces of the soil piercing rods are subjected to galling treatment, and the soil piercing rods are uniformly distributed at equal angles.
Furthermore, the pointed pile head is made of stainless steel and is of a conical structure.
Further, the threaded sleeve is from last to distributing of equidistance down has a plurality ofly, and the distance between the threaded sleeve is not more than 1 m.
Furthermore, the depth of the abdicating groove is equal to the distance between the top surface of the steel column and the top surface of the top steel ring, and the top cap is made of steel.
Furthermore, the hexagonal column both ends respectively with first threaded connection head and second threaded connection head welding, and the hexagonal column cross section is regular hexagon structure to the hexagonal column length of side is not more than 52 mm.
Furthermore, the pile body is of a reinforced concrete structure, and the strength of concrete adopted by the pile body is not lower than C30.
Further, first branch, second branch, interior connecting rod and outer connecting rod all adopt steel to make, and interior connecting rod and outer connecting rod length are not less than 5 cm.
(III) advantageous effects
Compared with the prior art, the invention provides a high-strength tubular pile foundation pit supporting structure for geotechnical engineering, which has the following beneficial effects:
(1) the invention adopts the upper sliding plate, the lower sliding plate, the soil piercing rod and the steel column, in the process of supporting the foundation pit, the bottom surface of the top cap is covered on the top surface of the top steel ring, at the moment, the top surface of the abdicating groove is abutted against the top surface of the steel column, the top cap is pressed downwards by adopting a static pile machine, the top cap pushes the pile body to enter the soil layer, after the pile body is driven to a set depth, the direction of the top cap is turned, the top surface of the abdicating groove is abutted against the top surface of the steel column, the top cap is continuously pressed downwards by using the static pile machine, the steel column is pushed downwards by the top cap, so that the upper sliding plate and the lower sliding plate are pushed downwards, the soil piercing rod is further pushed to downwards and obliquely penetrate into the soil, the soil is extended into the soil like plant rooting, the tensile resistance of the bottom of the pile body and the soil is increased.
(2) The anti-shearing device adopts the steel column and the support plate, the support plate is welded with the outer wall of the steel column and is abutted against the inner wall of the pile body in the pile body, the anti-shearing capacity of the steel column and the support plate is strong, and the anti-shearing capacity of the whole pile body is increased in the pile body, so that the strength of the pile body is improved, the installation strength is further improved, the stability and the reliability of the device are further improved, meanwhile, the steel column and the support plate can be recycled, no extra waste is generated, and the anti-shearing device is more economical.
(3) The invention adopts the inner connecting rod and the outer connecting rod, the inner connecting rod is inserted in the outer connecting rod, after the pile body is installed and excavated, the pile body can be exposed, the exposed part is positioned in the embedded threaded sleeve on the surface of the pile body, the first threaded connector can be rotatably inserted into the threaded sleeve, and the hexagonal nuts at the outer ends of the outer connecting rod and the inner connecting rod are spirally sleeved with the second threaded connector, so that the installation of the outer connecting rod and the inner connecting rod can be completed, the pile bodies are mutually connected, the integral stability between the pile bodies is improved, the device is further more stable and reliable, meanwhile, the inner connecting rod and the outer connecting rod provide a fixed transverse frame for geotextile or dust screens, the enclosure of a construction site is convenient, and meanwhile, the safe and civilized construction is convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described 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 without creative efforts.
Fig. 1 is a front view of a high-strength pipe pile foundation pit supporting structure for geotechnical engineering according to an embodiment of the present invention;
FIG. 2 is a side view of a piling according to an embodiment of the present invention;
fig. 3 is a schematic diagram of the internal structure of the pile body according to the embodiment of the invention;
FIG. 4 is a schematic structural diagram of an inner link and an outer link according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the operation of a high-strength pipe pile foundation pit supporting structure for geotechnical engineering according to an embodiment of the invention;
FIG. 6 is a schematic view of the connection of a steel column and a support plate according to an embodiment of the present invention;
FIG. 7 is a schematic illustration of the connection of a first threaded joint and a second threaded joint according to an embodiment of the present invention;
FIG. 8 is a schematic view of the connection of the upper and lower sliding plates according to an embodiment of the present invention.
In the figure:
1. a pile body; 2. a threaded sleeve; 3. jacking a steel ring; 4. an inner link; 5. an outer link; 6. pricking a soil rod; 7. an inclined sleeve; 8. a pointed pile head; 9. a steel column; 10. a support plate; 11. a first threaded connector; 12. a second threaded connector; 13. a hexagonal column; 14. a spiral stirrup; 15. a main rib; 16. an upper sliding plate; 17. connecting columns; 18. a lower sliding plate; 19. a top cap; 20. a yielding groove; 21. a first support bar; 22. a second support bar; 23. a rotating connecting seat; 24. a hexagonal nut; 25. a first hinge mount; 26. a second hinged seat.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to the embodiment of the invention, a high-strength tubular pile foundation pit supporting structure for geotechnical engineering is provided.
The invention will be further described with reference to the accompanying drawings and specific embodiments, as shown in fig. 1-8, according to an embodiment of the invention, a high-strength tubular pile foundation pit supporting structure for geotechnical engineering comprises a pile body 1 and a top cap 19, a steel column 9 is inserted into the pile body 1, an inclined sleeve 7 is embedded in the outer wall of the bottom of the pile body 1, the inclined sleeve 7 has an inclination angle of 45 degrees, a soil piercing rod 6 is inserted into the inclined sleeve 7, the soil piercing rod 6 is a steel round rod, a main rib 15 and a spiral stirrup 14 are bound into the pile body 1, the structure is a common tubular pile structure, and redundant description is omitted, a tip pile head 8 is fixedly connected to the bottom of the pile body 1 for facilitating soil piercing, the top surface of the tip pile head 8 is welded to the main rib 15, an upper sliding plate 16 is slidably connected to the inside of the pile body 1, a lower sliding plate 18 is fixedly connected to the bottom of the upper sliding plate 16 through a connecting column 17, the two ends of the upper sliding plate 16 and the lower sliding plate 18 are welded, the upper sliding plate 16 and the lower sliding plate 18 are connected into a whole, the upper sliding plate 16 and the lower sliding plate 18 are prevented from inclining in the pile body 1, the outer wall of the lower sliding plate 18 is in sliding butt joint with the inner wall of the pile body 1, the top surface of the soil pricking rod 6 is in sliding butt joint with the bottom surfaces of the upper sliding plate 16 and the lower sliding plate 18 respectively, the top surface of the pile body 1 is provided with a top steel ring 3, the bottom surface of the top steel ring 3 is welded with a main rib 15, the main rib 15 connects the top steel ring 3 and a pointed pile head 8 into a whole, the integrity is improved, the bottom surface of the top cap 19 is provided with a yielding groove 20, the diameter of the top cap 19 is equal to the diameter of the top steel ring 3, the inner diameter of the yielding groove 20 is equal to the inner diameter of the top steel ring 3, the bottom surface of the top cap 19 is covered, the top cap 19 pushes the pile body 1 to enter a soil layer, after the pile body is driven into a set depth, the direction of the top cap 19 is adjusted to enable the top surface of the abdicating groove 20 to be abutted against the top surface of the steel column 9, the static pressure pile machine is continuously used for downwards pressing the top cap 19, the top cap 19 pushes the steel column 9 to downwards move, the upper sliding plate 16 and the lower sliding plate 18 are pushed to downwards move, the soil piercing rod 6 is further pushed to downwards move to pierce into the soil, the top cap extends into the soil like plant rooting, the pulling resistance of the bottom of the pile body 1 and the soil is increased, the installation stability of the pile body 1 is improved, the installation strength is improved, and the device is more stable and reliable.
In one embodiment, the welding of steel column 9 outer wall has backup pad 10, and backup pad 10 is along steel column 9 top surface central point to put angular distribution such as, and backup pad 10 outward flange and pile body 1 inner wall slip butt, steel column 9 and backup pad 10 anti-shear capacity are strong, it has increased the holistic anti-shear capacity of pile body 1 to be located in pile body 1, thereby the intensity of pile body 1 has been improved, the installation strength is further improved, thereby the stability and the reliability of this device have further been improved, and simultaneously, steel column 9 and backup pad 10 can also recycle, do not produce extra waste, and is more economical.
In one embodiment, a threaded sleeve 2 is embedded in the front vertical surface of a pile body 1, a first threaded connector 11 is connected to the interior of the threaded sleeve 2 in a threaded manner, a second threaded connector 12 is fixedly connected to the other end of the first threaded connector 11 through a hexagonal column 13, an outer connecting rod 5 and an inner connecting rod 4 are used between the pile bodies 1 in a matched manner, the inner connecting rod 4 is inserted into the outer connecting rod 5, the outer ends of the outer connecting rod 5 and the inner connecting rod 4 are hinged to a first supporting rod 21 through a second hinge seat 26, the other end of the first supporting rod 21 is hinged to a second supporting rod 22 through a first hinge seat 25, the other end of the second supporting rod 22 is rotatably connected to a hexagonal nut 24 through a rotary connecting seat 23, the hexagonal nut 24 is in threaded connection with the second threaded connector 12, the total length of the outer connecting rod 5 and the inner connecting rod 4 is greater than the distance between the pile bodies 1, and the pile body 1, expose the department and lie in pile body 1 pre-buried threaded sleeve 2 in surface, can use first threaded connection head 11 to rotate and insert in threaded sleeve 2, hexagonal nut 24 and second threaded connection head 12 using outer connecting rod 5 and inner connecting rod 4 outer end carry out the spiral and cup joint, can accomplish the installation of outer connecting rod 5 and inner connecting rod 4, make interconnect between the pile body 1, thereby overall stability between the pile body 1 has been improved, thereby further make this device more reliable and stable, and simultaneously, inner connecting rod 4 and outer connecting rod 5 provide fixed crossbearer for geotechnological cloth or dust screen, be convenient for the construction site enclosure, and simultaneously, be convenient for safe civilized construction goes on.
In one embodiment, the soil piercing rods 6 are made of steel, the surfaces of the soil piercing rods 6 are roughened to improve friction, and the soil piercing rods 6 are uniformly distributed at equal angles to increase the soil penetration amount, so that the drawing force is increased.
In one embodiment, the pointed pile head 8 is made of stainless steel, and the pointed pile head 8 is in a conical structure, so that the pointed pile head can penetrate into a soil layer conveniently, and the workload of the static pile machine is reduced.
In one embodiment, the plurality of threaded sleeves 2 are equidistantly distributed from top to bottom, and the distance between the threaded sleeves 2 is not more than 1m, so that the density of the distribution of the inner connecting rods 4 and the outer connecting rods 5 from top to bottom is ensured, and the stability of transverse connection is improved.
In one embodiment, the depth of the abdicating groove 20 is equal to the distance between the top surface of the steel column 9 and the top surface of the top steel ring 3, during the process of pressing the steel column 1 in, the abdicating groove 20 is synchronously pressed in the steel column 9, so that the moving speed and distance of the steel column 9 and the pile body 1 are the same, the soil piercing rod 6 is prevented from being pressed into the soil in advance, and the top cap 19 is made of steel materials, is firm and pressure-resistant.
In one embodiment, the hexagonal column 13 is welded at two ends with the first threaded connector 11 and the second threaded connector 12 respectively, the hexagonal column 13 has a regular hexagonal cross section, and the hexagonal column 13 has a side length not greater than 52mm, so that the hexagonal column 13 can be rotated by using a wrench, and the first threaded connector 11 can be installed conveniently.
In one embodiment, the pile body 1 is a reinforced concrete structure, and the strength of the concrete adopted by the pile body 1 is not lower than C30, so as to avoid the situation that the structure is unstable due to too low concrete strength, which is a common structure and is not described herein in detail.
In one embodiment, the first and second struts 21 and 22, the inner and outer links 4 and 5 are made of steel, thereby increasing the strength, and the length of the inner and outer links 4 and 5 is not less than 5cm, so that the hexagonal nut 24 can be adjusted in a certain range of angles and orientations, and the hexagonal nut 24 can be smoothly installed even if the threaded sleeve 2 is deflected at a certain angle.
The working principle is as follows:
in the process of supporting a foundation pit, the bottom surface of a top cap 19 is covered on the top surface of a top steel ring 3, the top surface of a abdicating groove 20 is abutted against the top surface of a steel column 9, a static pressure pile driver is adopted to press the top cap 19 downwards, the top cap 19 pushes a pile body 1 to enter a soil layer, after the pile body is driven to a set depth, the direction of the top cap 19 is turned, the top surface of the abdicating groove 20 is abutted against the top surface of the steel column 9, the static pressure pile driver is continuously used to press the top cap 19 downwards, the top cap 19 pushes the steel column 9 to move downwards, so that an upper sliding plate 16 and a lower sliding plate 18 are pushed to move downwards, a soil piercing rod 6 is pushed to move downwards and pierce into the soil like a plant extends into the soil, the pulling resistance of the bottom of the pile body 1 and the soil is increased, the installation stability of the pile body 1 is improved, the installation strength is improved, the device is more stable and reliable, meanwhile, the shear resistance of the steel column 9 and a supporting plate 10, thereby improving the strength of the pile body 1, further improving the installation strength, further improving the stability and reliability of the device, simultaneously, the steel column 9 and the supporting plate 10 can be recycled, no extra waste is generated, and the device is more economical, in addition, after the pile body 1 is installed and excavated, the pile body 1 can be exposed, the exposed part is positioned on the threaded sleeve 2 pre-embedded on the surface of the pile body 1, the first threaded connector 11 can be used for rotating and inserting into the threaded sleeve 2, the hexagonal nuts 24 at the outer ends of the outer connecting rod 5 and the inner connecting rod 4 are spirally sleeved with the second threaded connector 12, the installation of the outer connecting rod 5 and the inner connecting rod 4 can be completed, the pile body 1 is mutually connected, thereby improving the overall stability between the pile bodies 1, further enabling the device to be more stable and reliable, simultaneously, the inner connecting rod 4 and the outer connecting rod 5 provide a fixing transverse frame for geotextile or dust screens, the construction site enclosure is convenient, and meanwhile, the safe and civilized construction is convenient to carry out.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
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 (10)
1. The utility model provides a high strength tubular pile foundation pit supporting construction for geotechnical engineering, a serial communication port, including pile body (1) and hood (19), pile body (1) inside grafting has steel column (9), and pile body (1) bottom outer wall pre-buried have oblique sleeve (7), and oblique sleeve (7) inside grafting has thorn soil pole (6), pile body (1) inside ligature has main muscle (15) and spiral stirrup (14), and pile body (1) bottom surface fixedly connected with most advanced pile head (8), and most advanced pile head (8) top surface and main muscle (15) welding, pile body (1) inside sliding connection has upper sliding plate (16), and upper sliding plate (16) bottom surface through spliced pole (17) fixedly connected with lower sliding plate (18), and lower sliding plate (18) outer wall and pile body (1) inner wall slip butt, thorn soil pole (6) top surface slides with upper sliding plate (16) and lower sliding plate (18) bottom surface butt respectively, the pile body (1) top surface is provided with a steel ring (3), and a steel ring (3) bottom surface and main muscle (15) welding, groove of stepping down (20) have been seted up to top cap (19) bottom surface, and top cap (19) diameter equals a steel ring (3) diameter to groove of stepping down (20) internal diameter equals a steel ring (3) internal diameter.
2. The high-strength tubular pile foundation pit supporting structure for geotechnical engineering according to claim 1, wherein supporting plates (10) are welded to the outer wall of the steel column (9), the supporting plates (10) are distributed at equal angles along the center of the top surface of the steel column (9), and the outer edges of the supporting plates (10) are in sliding abutting joint with the inner wall of the pile body (1).
3. The high-strength tubular pile foundation pit supporting structure for geotechnical engineering according to claim 1, wherein the right vertical surface of the pile body (1) is pre-embedded with a threaded sleeve (2), the interior of the threaded sleeve (2) is in threaded connection with a first threaded connector (11), the other end of the first threaded connector (11) is fixedly connected with a second threaded connector (12) through a hexagonal column (13), the pile body (1) is matched with an outer connecting rod (5) and an inner connecting rod (4), the inner connecting rod (4) is inserted into the outer connecting rod (5), the outer ends of the outer connecting rod (5) and the inner connecting rod (4) are hinged with a first supporting rod (21) through a second hinge seat (26), the other end of the first supporting rod (21) is hinged with a second supporting rod (22) through a first hinge seat (25), and the other end of the second supporting rod (22) is rotatably connected with a hexagonal nut (24) through a rotary connecting seat (23), and the hexagonal nut (24) is in threaded connection with the second threaded connector (12).
4. The high-strength pipe pile foundation pit supporting structure for geotechnical engineering according to claim 1, wherein the soil piercing rods (6) are made of steel, the surface of each soil piercing rod (6) is subjected to galling treatment, and a plurality of soil piercing rods (6) are uniformly distributed at equal angles.
5. The high-strength tubular pile foundation pit supporting structure for geotechnical engineering according to claim 1, wherein the pointed pile head (8) is made of stainless steel, and the pointed pile head (8) is of a conical structure.
6. The high-strength pipe pile foundation pit supporting structure for geotechnical engineering according to claim 3, wherein the plurality of threaded sleeves (2) are equidistantly distributed from top to bottom, and the distance between the threaded sleeves (2) is not more than 1 m.
7. The high-strength pipe pile foundation pit supporting structure for geotechnical engineering according to claim 1, wherein the depth of the abdicating groove (20) is equal to the distance between the top surface of the steel column (9) and the top surface of the top steel ring (3), and the top cap (19) is made of steel.
8. The high-strength tubular pile foundation pit supporting structure for geotechnical engineering according to claim 3, wherein two ends of the hexagonal column (13) are respectively welded with the first threaded connector (11) and the second threaded connector (12), the cross section of the hexagonal column (13) is of a regular hexagonal structure, and the side length of the hexagonal column (13) is not more than 52 mm.
9. The high-strength pipe pile foundation pit supporting structure for geotechnical engineering according to claim 1, wherein the pile body (1) is of a reinforced concrete structure, and the strength of concrete adopted by the pile body (1) is not lower than C30.
10. The high-strength pipe pile foundation pit supporting structure for geotechnical engineering according to claim 3, wherein the first supporting rod (21), the second supporting rod (22), the inner connecting rod (4) and the outer connecting rod (5) are all made of steel, and the lengths of the inner connecting rod (4) and the outer connecting rod (5) are not less than 5 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110294869.1A CN113089682A (en) | 2021-03-18 | 2021-03-18 | High-strength tubular pile foundation pit supporting structure for geotechnical engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110294869.1A CN113089682A (en) | 2021-03-18 | 2021-03-18 | High-strength tubular pile foundation pit supporting structure for geotechnical engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113089682A true CN113089682A (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110294869.1A Pending CN113089682A (en) | 2021-03-18 | 2021-03-18 | High-strength tubular pile foundation pit supporting structure for geotechnical engineering |
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| CN (1) | CN113089682A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115110546A (en) * | 2022-08-05 | 2022-09-27 | 徐州圣泽建筑工程有限公司 | Independent large-span deep foundation pit prestressed steel supporting system |
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| CN209669904U (en) * | 2019-02-28 | 2019-11-22 | 广东广强基础工程有限公司 | A kind of soft layer middle-high building basis shallow embedding structure |
| CN210597272U (en) * | 2019-07-25 | 2020-05-22 | 浙江正大管桩有限公司 | Hollow pile for civil construction |
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| CN2604527Y (en) * | 2003-02-25 | 2004-02-25 | 张百全 | End-bearing roofbolt |
| KR20100124166A (en) * | 2009-05-18 | 2010-11-26 | (주)삼오기초건설 | Shoe for steel pile |
| CN107620309A (en) * | 2017-07-27 | 2018-01-23 | 天津大学 | Foundation pit supporting method |
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| CN209669904U (en) * | 2019-02-28 | 2019-11-22 | 广东广强基础工程有限公司 | A kind of soft layer middle-high building basis shallow embedding structure |
| CN210597272U (en) * | 2019-07-25 | 2020-05-22 | 浙江正大管桩有限公司 | Hollow pile for civil construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115110546A (en) * | 2022-08-05 | 2022-09-27 | 徐州圣泽建筑工程有限公司 | Independent large-span deep foundation pit prestressed steel supporting system |
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Application publication date: 20210709 |