CN211873064U - Prefabricated multi-pile foundation - Google Patents
Prefabricated multi-pile foundation Download PDFInfo
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- CN211873064U CN211873064U CN202020448165.6U CN202020448165U CN211873064U CN 211873064 U CN211873064 U CN 211873064U CN 202020448165 U CN202020448165 U CN 202020448165U CN 211873064 U CN211873064 U CN 211873064U
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Abstract
The utility model relates to the field of building materials, in particular to a prefabricated multi-pile foundation, which comprises a bearing platform, a plurality of downward friction piles arranged at the lower end of the bearing platform and a connecting pile arranged at the upper end of the bearing platform, wherein the bearing platform comprises a bearing platform framework, the bearing platform framework comprises a transverse tensile plate I, and a coating layer I is arranged outside the bearing platform framework; the friction pile is arranged at the edge of the bearing platform, the lower end of the friction pile is bent outwards, the friction pile comprises a friction pile framework, the friction pile framework comprises a plurality of tensile ribs, a coating layer II is arranged outside the friction pile framework, and the width value and the thickness value of the lower end of the friction pile are gradually reduced and increased from bottom to top; the connecting pile comprises a connecting pile framework, a coating layer III is arranged outside the connecting pile framework, and the connecting pile is high in structural stability, high in use stability and convenient to manufacture.
Description
Technical Field
The utility model relates to a building material field especially relates to a prefabricated many piles basis.
Background
The pile foundation is composed of foundation piles and bearing platforms connected to the tops of the piles. If the pile body is completely buried in the soil and the bottom surface of the bearing platform is contacted with the soil body, the pile body is called a low bearing platform pile foundation, and if the upper part of the pile body is exposed out of the ground and the bottom of the bearing platform is positioned above the ground, the pile body is called a high bearing platform pile foundation. Building pile foundations are typically low cap pile foundations. The method is widely applied to projects such as high-rise buildings, bridges, high-speed railways and the like.
The foundation can be roughly divided into friction piles and end-bearing piles according to the stress principle of the foundation.
The friction pile is used to bear the structure by the friction force between the ground layer and the foundation pile and can be divided into pressure pile and tension pile, which are used for the ground layer without hard bearing layer or with deeper bearing layer.
The end-bearing pile is used to make the foundation pile be seated on the bearing layer (on the rock) so as to bear the structure.
The construction method can be divided into precast piles and cast-in-place piles.
And (3) prefabricating the pile, namely driving the prefabricated reinforced concrete pile into the ground through a pile driver. The advantages are saving material, high strength, suitable for building with high requirement, high construction difficulty and long construction time limited by the number of machines.
And (3) pouring the pile, namely firstly drilling a hole on a construction site, and putting the reinforcing steel bar into poured concrete after the required depth is reached. The construction method has the advantages that the construction difficulty is low, particularly, manual hole digging piles can be free from the limitation of the number of machines, all pile foundations are constructed simultaneously, the time is greatly saved, and the defects of low bearing capacity and material cost are overcome.
Current friction pile includes the bearing platform, set up in many decurrent friction posts of bearing platform lower extreme, set up the connection stake in the bearing platform upper end, bearing platform integrated into one piece, for concrete or steel sheet, the friction post is the steel pipe generally, steel pipe lower extreme welding conical head, make things convenient for and conveniently bury the underground, but the bearing capacity mainly leans on the bearing platform to provide, the sectional area is little, easily sink, and take place the slope easily, for increasing frictional force, also have among the prior art to set up the friction post slope, can improve the sectional area, but its friction post is the cylinder type, and welded fastening between the bearing platform, easily receive the corruption.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, provide a structural stability height, stability in use is high, make convenient prefabricated many piles basis.
The utility model discloses a realize through following technical scheme: a prefabricated multi-pile foundation comprises a bearing platform, a plurality of downward friction piles arranged at the lower end of the bearing platform, and a connecting pile arranged at the upper end of the bearing platform,
the bearing table comprises a bearing table framework, the bearing table framework comprises a transverse tensile plate I, and a coating layer I is arranged outside the bearing table framework;
the friction pile is arranged at the edge of the bearing platform, the lower end of the friction pile is bent outwards, the friction pile comprises a friction pile framework, the friction pile framework comprises a plurality of tensile ribs, a coating layer II is arranged outside the friction pile framework, and the width value and the thickness value of the lower end of the friction pile are gradually reduced and increased from bottom to top;
the connecting pile comprises a connecting pile framework, and a third coating layer is arranged outside the connecting pile framework.
Furthermore, the lower end of the tensile rib is bent outwards, the upper end of the tensile rib is connected with the tensile plate I, and the width value of the lower end of the friction pile framework is gradually reduced from bottom to top, and the thickness value of the lower end of the friction pile framework is gradually increased.
Furthermore, the friction pile skeleton includes four tensile bars, and four tensile bar upper ends are parallel to each other and upwards pass tensile plate one, be provided with the through-hole one corresponding with tensile bar on the tensile plate one, friction pile skeleton lower extreme is provided with backup pad one, the tensile bar lower extreme passes backup pad one downwards, be provided with the through-hole two with tensile bar matched with on the backup pad one, the department of buckling of tensile bar is located backup pad one upside.
Further, the length value of backup pad one is greater than the width value, through-hole two is rectangular hole, rectangular hole sets up along the length direction of backup pad one, rectangular hole outer end is provided with and is used for blockking dismantling spacingly of tensile reinforcement.
Furthermore, pin holes are formed in two sides of the outer end of the long strip hole, and the detachable limiting part is a U-shaped pin inserted between the two pin holes.
Furthermore, the upper side of the first tensile plate is provided with a second tensile plate in parallel, a first supporting piece is arranged between the second tensile plate and the first tensile plate, the upper end of the tensile rib upwards penetrates through the second tensile plate, and the first tensile plate and the second tensile plate are both pore plates.
Furthermore, a plurality of tensile ribs corresponding to any friction pile framework extend to the upper side of the tensile plate to form a connecting pile framework, a second supporting plate is arranged at the upper end of the connecting pile framework, a second supporting piece is arranged between the second supporting plate and the second tensile plate, and a third through hole matched with the tensile rib is formed in the second supporting plate.
Further, support piece one, support piece two all include the pole setting, the pole setting lower extreme sets up the crosspiece, pole setting lower extreme external diameter is less than the orifice plate aperture, the pole setting lower extreme is provided with the direction awl, pole setting lower extreme cover is equipped with the elastic layer, and the elastic layer external diameter is greater than the orifice plate aperture, the pole setting upper end is provided with horizontal pin.
Furthermore, the upper end of the tensile rib is provided with a support piece, and the tensile rib is positioned on one upper side of the tensile plate.
Furthermore, the first tensile plate is a square, circular, oval, regular hexagon or regular pentagon plate, and a downward positioning pipe is arranged in the middle of the first tensile plate.
The beneficial effects of the utility model reside in that: the prefabricated multi-pile foundation comprises a bearing platform framework and a coating layer I, the bearing platform framework comprises a transverse tensile plate I, the tensile capacity of the bearing platform can be guaranteed, other frameworks can be conveniently connected, the pouring is convenient, a friction pile is arranged at the edge position of the bearing platform, the lower end of the friction pile is bent outwards, the width value of the lower end of the friction pile is gradually reduced from bottom to top, the thickness value is gradually increased, the sectional area can be effectively increased, the friction force is increased, the sinking stability is further improved, the lower end of the friction pile is flat and has better anti-inclination capacity, the friction pile framework comprises a plurality of tensile ribs, the bearing platform can be supported, the stability of the stable friction pile can be improved, the coating layer I, the coating layer II and the coating layer III are integrally poured and formed, and are concrete or cement coating layers, and the structural stability of the prefabricated multi-pile, and the bearing platform framework, the friction pile framework and the connecting pile framework are coated with waterproof layers, and the waterproof layers and the coating layers jointly protect the frameworks and avoid corrosion.
Drawings
FIG. 1 is a schematic view of the structure of example 1;
FIG. 2 is a schematic front sectional view of example 1;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
FIG. 4 is a schematic view of a support structure;
FIG. 5 is a schematic top view of the support plate;
wherein: 1-bearing platform, 101-first tensile plate, 102-first coating layer, 103-second tensile plate, 104-first support piece, 105-vertical rod, 106-stop rod, 107-transverse rod, 108-guide cone, 109-support piece, 110-positioning tube, 111-opening, 2-connecting pile, 201-second support plate, 202-second support piece, 203-third coating layer, 3-friction pile, 301-tensile rib, 302-second coating layer, 303-first support plate, 304-second through hole and 305-pin hole.
Detailed Description
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1-5, a prefabricated multi-pile foundation includes a bearing platform 1, a plurality of downward friction piles 3 connected to a lower end of the bearing platform, and a connection pile 2 connected to an upper end of the bearing platform.
The bearing platform comprises a bearing platform framework, the bearing platform framework comprises a transverse tensile plate I101, an anti-pulling plate II 103 is arranged on the upper side of the tensile plate I in parallel, a support piece I104 is arranged between the tensile plate II and the tensile plate I, the tensile plate I and the tensile plate II are round steel pore plates, the outer diameters of the tensile plate I and the tensile plate II are the same, the pore diameter on the pore plates is 8mm and 6mm, the support piece I comprises a vertical rod 105, a transverse baffle 107 is welded at the lower end of the vertical rod, a transverse baffle 106 is welded at the upper end of the vertical rod, for convenient manufacture, the vertical rod, the transverse baffle and the baffle are all cut by steel bars with the outer diameter of 6mm, the outer diameter of the lower end of the vertical rod is smaller than the pore diameter of the pore plates, a guide cone 108 is processed at the lower end of the vertical rod, the guide cone can be conical, frustum type or hemispherical type, for convenient manufacture, the cone type, the elastic layer external diameter is greater than the orifice plate aperture, through the elastic layer, not only can prevent that support piece one from rustting, can also avoid the pole setting to rock.
Four friction piles are uniformly distributed at the edge position of the bearing platform, each friction pile comprises a friction pile framework, the lower end of each friction pile framework is gradually reduced in width from bottom to top and gradually increased in thickness, the lower end of the prepared friction pile is outwards bent, the bending angle is 30 degrees, the lower end of each friction pile is gradually reduced in width from bottom to top and gradually increased in thickness, namely the friction pile is outwards inclined and narrow at the bottom, the transverse sectional area can be effectively increased, the sinking stability and the inclination stability are improved, each friction pile framework comprises four tensile ribs 301, each tensile rib is made of deformed steel with the outer diameter of 8mm, the upper ends of the four tensile ribs are parallel to each other and distributed along four ridges of a cuboid shape, the tensile plates I and the tensile plates II sequentially penetrate through the tensile plates I upwards, through holes I corresponding to the tensile ribs are processed on the tensile plates I, the apertures of the through holes I are 10mm, and a support plate I is installed at the lower end of each, 303 backup pad one is the steel sheet, thickness 4mm, the tensile muscle lower extreme passes backup pad one downwards, processing has two 304 with tensile muscle matched with through-hole on the backup pad one, the department of buckling of tensile muscle is located backup pad upside, the length value of backup pad one is greater than the width value, be oval in this embodiment, with friction pile lower extreme shape fit, through-hole two is rectangular hole, the processing of length direction along backup pad one in rectangular hole, it is spacing to install the dismantlement that is used for blockking the tensile muscle in rectangular hole outer end, rectangular hole outer end both sides processing has pinhole 305, can dismantle spacing U type round pin for the cartridge between two pinholes, current U type bolt can be chooseed for use to U type round pin, also can buckle through the reinforcing bar, convenient preparation.
The connecting pile comprises a connecting pile framework, in the embodiment, four tensile ribs corresponding to each friction pile framework extend to the upper side of the tensile plate to form the connecting pile framework, a supporting plate II 201 is installed at the upper end of the connecting pile framework, a supporting piece II 202 is installed between the supporting plate II and the tensile plate II, a through hole III matched with the tensile ribs is machined in the supporting plate II, the aperture of the through hole III is 9mm, the supporting plate II is a circular steel plate with the thickness of 8mm, and the supporting piece II is the same as the supporting piece I in shape.
The bearing platform framework is externally provided with a first coating layer 102, the friction pile framework is externally provided with a second coating layer 302, the connecting pile framework is externally provided with a third coating layer 203, the first coating layer, the second coating layer and the third coating layer are integrally cast and formed and are all concrete or cement coating layers, in this embodiment, concrete is adopted, the bearing platform framework, the friction pile framework and the connecting pile framework are all coated with waterproof layers, and the coating layers jointly protect the frameworks from corrosion,
the upper end of the tensile rib is provided with a support part 109 which is obtained by cutting a steel bar, and the tensile rib is positioned on the upper side of the tensile plate. A downward positioning pipe 110 is welded in the middle of the first tensile plate, an opening 111 is machined in the position, opposite to the first positioning pipe, of the first tensile plate, or an opening is machined in the side wall of the positioning pipe, and then concrete enters the positioning pipe.
The prefabricated multi-pile foundation provided by the embodiment is prepared by prefabricating a first tensile plate, a second tensile plate, a tensile rib, a first supporting plate, a second supporting plate, a supporting frame and a pouring mold, wherein the first tensile plate is placed in the mold and supported by a positioning pipe, then a first supporting part is inserted, the tensile rib is righted, downwards penetrated and installed, the tensile rib is blocked by a supporting part after penetrating and installing is finished and hung on the first tensile plate, the second tensile plate is laid, the tensile rib upwards penetrates through the second tensile plate to adjust the steering direction of the tensile rib, then spot welding is carried out to position the tensile rib, the first tensile plate and the second tensile plate, then the first supporting plate is upwards penetrated and installed on the tensile rib, the upper end of the tensile rib is fixed and the lower end of the tensile rib is suspended, the lower end of the tensile rib is pulled to move along the second through hole, and after the tensile rib crosses the pin hole, a U-shaped pin is inserted, so that the tensile rib can be prevented from, The thickness value increases gradually, convenient preparation, because the elasticity that resets of tensile reinforcement, backup pad one clamps at friction pile skeleton lower extreme, for preventing to pour the time slip, the spot welding is fixed, between four tensile reinforcement upper ends that each friction pile skeleton corresponds, cartridge support piece two, right, then cartridge backup pad two, the spot welding is fixed, obtains complete connection pile skeleton, spraying waterproof paint, the compound die, concreting, the jolt ramming, drawing of patterns after the concrete solidification, obtain finished product prefabricated many piles basis, wherein tensile reinforcement extends to the connection pile upside.
Bury the many pile foundations of prefabrication that will obtain in the soil horizon, can use, when using, connect the reinforcing bar cage through the connecting pile, and then weave and establish the template, concreting can, convenient to use, because coating one, coating two, the shaping is pour to three integrations of coating, structural stability is high, and through the skeleton joint, better anti resistance to deformation ability that splits has, tensile board one, tensile board two all is the steel sheet that thickness is 6mm, can reduce the thickness of bearing platform, because the screw-thread steel of connecting the pile need connect the upper end reinforcing bar, the addition of backup pad two, can prevent the fracture that the outside skew of screw-thread steel leads to, stability is improved.
In order to improve the connection stability of the first support plate and the second support plate with concrete, the first support plate and the second support plate are both pore plates.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (10)
1. A prefabricated multi-pile foundation comprises a bearing platform, a plurality of downward friction piles arranged at the lower end of the bearing platform, and a connecting pile arranged at the upper end of the bearing platform, and is characterized in that,
the bearing table comprises a bearing table framework, the bearing table framework comprises a transverse tensile plate I, and a coating layer I is arranged outside the bearing table framework;
the friction pile is arranged at the edge of the bearing platform, the lower end of the friction pile is bent outwards, the friction pile comprises a friction pile framework, the friction pile framework comprises a plurality of tensile ribs, a coating layer II is arranged outside the friction pile framework, and the width value and the thickness value of the lower end of the friction pile are gradually reduced and increased from bottom to top;
the connecting pile comprises a connecting pile framework, a coating layer III is arranged outside the connecting pile framework,
the first coating layer, the second coating layer and the third coating layer are integrally cast and formed and are concrete or cement coating layers;
waterproof layers are coated on the bearing platform framework, the friction pile framework and the connecting pile framework.
2. The prefabricated multi-pile foundation of claim 1, wherein the lower ends of the tensile ribs are bent outwards, the upper ends of the tensile ribs are connected with a tensile plate I, and the lower ends of the friction pile frameworks are gradually reduced in width and gradually increased in thickness from bottom to top.
3. The prefabricated multi-pile foundation of claim 2, wherein the friction pile framework comprises four tensile ribs, the upper ends of the four tensile ribs are parallel to each other and penetrate upwards through a first tensile plate, a first through hole corresponding to the tensile rib is formed in the first tensile plate, a first supporting plate is arranged at the lower end of the friction pile framework, the lower end of the tensile rib penetrates downwards through the first supporting plate, a second through hole matched with the tensile rib is formed in the first supporting plate, and the bending part of the tensile rib is located on the upper side of the first supporting plate.
4. The prefabricated multi-pile foundation of claim 3, wherein the length of the first support plate is greater than the width of the first support plate, the second through hole is a strip hole, the strip hole is formed along the length of the first support plate, and a detachable limit for blocking the tensile rib is arranged at the outer end of the strip hole.
5. The prefabricated multi-pile foundation of claim 4, wherein pin holes are formed in two sides of the outer end of the elongated hole, and the detachable limit is a U-shaped pin inserted between the two pin holes.
6. The prefabricated multi-pile foundation of claim 2, wherein a second tensile plate is arranged on the first tensile plate in parallel, a first supporting member is arranged between the second tensile plate and the first tensile plate, the upper end of the tensile rib penetrates upwards through the second tensile plate, and both the first tensile plate and the second tensile plate are perforated plates.
7. The prefabricated multi-pile foundation of claim 6, wherein a plurality of tensile ribs corresponding to any friction pile framework extend to the upper side of the tensile plate to form a connecting pile framework, a second supporting plate is arranged at the upper end of the connecting pile framework, a second supporting piece is arranged between the second supporting plate and the second tensile plate, and a third through hole matched with the tensile ribs is formed in the second supporting plate.
8. The prefabricated multi-pile foundation of claim 7, wherein the first supporting member and the second supporting member both comprise vertical rods, the lower ends of the vertical rods are provided with transverse baffles, the outer diameters of the lower ends of the vertical rods are smaller than the aperture of the perforated plate, the lower ends of the vertical rods are provided with guide cones, the lower ends of the vertical rods are sleeved with elastic layers, the outer diameters of the elastic layers are larger than the aperture of the perforated plate, and the upper ends of the vertical rods are provided with transverse stop levers.
9. The precast multi-pile foundation of claim 2, wherein the tensile reinforcement is provided with a support member at an upper end thereof, and the tensile reinforcement is located at an upper side of the tensile plate.
10. The precast multi-pile foundation of claim 2, wherein the first tension plate is a square, circular, oval, regular hexagonal or regular pentagonal plate, and a downward positioning pipe is arranged at a middle position of the first tension plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020448165.6U CN211873064U (en) | 2020-03-31 | 2020-03-31 | Prefabricated multi-pile foundation |
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| CN202020448165.6U CN211873064U (en) | 2020-03-31 | 2020-03-31 | Prefabricated multi-pile foundation |
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| CN211873064U true CN211873064U (en) | 2020-11-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113718829A (en) * | 2021-09-16 | 2021-11-30 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wind power multi-pile foundation |
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2020
- 2020-03-31 CN CN202020448165.6U patent/CN211873064U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113718829A (en) * | 2021-09-16 | 2021-11-30 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wind power multi-pile foundation |
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