Pile foundation structure of large-area round pile cap of cross beam

Abstract

The utility model relates to a pile foundation structure of a large-area round pile cap of a cross beam, which comprises cylindrical piles which are vertically arranged on a foundation with a construction embankment in an array mode. The connecting beams are mounted at the upper pile heads of the adjacent cylindrical piles; the pile cap is mounted at the upper pile head position of the cylindrical pile; the first reinforcing piece is mounted between the pile cap and the cylindrical pile; by adopting the connecting beam reinforcing mode, compared with a traditional frame structure, the number of the piles is reduced, the anti-settling capacity of the embankment is improved, lateral displacement of the single piles is restrained, and when a foundation is affected by seepage of rainwater or underground water, the foundation is prevented from falling off, and the foundation is prevented from falling off. According to the large-area pile cap, damage caused by too large horizontal displacement of the whole cylindrical pile can be prevented, then the service life of the pile foundation structure is prolonged, the first reinforcing piece and the second reinforcing piece are arranged below the large-area pile cap, the compressive damage resistance of the large-area pile cap is enhanced, and the situation that the pile cap is crushed and crushed due to the fact that no support exists below the pile cap is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of embankment engineering, in particular to a pile foundation structure of a cross beam with a large-area round pile cap. Background Art

[0002] In traditional pile-supported embankment structures, a large number of piles are usually arranged to support the embankment bearing load. However, this arrangement method has problems such as a large number of piles, high cost, and great construction difficulty. At the same time, in some specific cases, traditional structures are also difficult to meet the requirements of anti-settlement capacity and the service life of pile foundation structures. In traditional construction methods, there are more wet operations on site, and the construction has a greater impact on the environment. In addition, when an earthquake occurs, buildings or structures will be subjected to shear forces and bending moments generated by seismic waves, which will cause the pile foundation to be subjected to horizontal loads. Similarly, under extreme rainfall conditions, a large amount of rainwater will infiltrate into the ground, changing the groundwater level and seepage field. When rainwater enters the soil layer through infiltration, it will generate seepage force, which will exert horizontal force on the pile foundation. Utility Model Content

[0003] In view of the above shortcomings of the prior art, the purpose of the utility model is to provide a pile foundation structure with a large-area circular pile cap with a cross beam, which can meet the requirements of anti-settlement ability and service life of the pile foundation structure, enhance the integrity of the pile foundation structure, and improve the resistance of the pile foundation structure to the huge horizontal deformation problem caused by horizontal force.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the utility model proposes a pile foundation structure with a large-area round pile cap of a cross beam, comprising

[0005] Cylindrical piles, arranged vertically and in arrays on a foundation with a construction embankment;

[0006] The connecting beam is installed at the upper pile heads of adjacent cylindrical piles;

[0007] A pile cap is installed at the upper pile head position of the cylindrical pile;

[0008] a first reinforcement member installed between the pile cap and the cylindrical pile;

[0009] The second reinforcement member is installed between the pile cap and the connecting beam.

[0010] In an embodiment of the present invention, the connecting beams are arranged in a cross shape.

[0011] In an embodiment of the present invention, the connecting beams are arranged in parallel.

[0012] In an embodiment of the present invention, one end of the connecting beam is connected to the pile body of the cylindrical pile by one or more methods of bolts, welding, and clamping.

[0013] In an embodiment of the present invention, the first reinforcement member is triangular in shape as a whole.

[0014] In one embodiment of the present invention, the second reinforcement member is rectangular as a whole.

[0015] In one embodiment of the present invention, the connecting beam is a prefabricated concrete component or a component cast on site.

[0016] In one embodiment of the present invention, the pile cap has a circular or elliptical profile, and the cylindrical pile has a diameter of 500 mm to 700 mm.

[0017] By adopting the above technical solution, the technical effects of the utility model are:

[0018] 1. The utility model increases the pile spacing and pile cap area by reasonably arranging cross beams and transverse reinforced ribs compared to the traditional frame structure, effectively reduces the number of piles used, restricts the lateral displacement of the pile foundation, significantly improves its anti-settlement ability, and has strong economy.

[0019] 2. In the utility model, the first reinforcement member and the second reinforcement member are arranged under the large-area pile cap, so that the compressive damage resistance of the large-area pile cap is enhanced, and the pile cap is prevented from being crushed or crushed due to lack of support under the pile cap.

[0020] 3. In the utility model, the cross beams and transverse stiffening ribs are used in combination to improve the integrity of the pile foundation structure, especially the structural properties in the horizontal direction, and improve the structure's resistance to huge horizontal deformation problems caused by earthquakes, groundwater seepage and other problems, thereby significantly increasing the service life of the pile foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic plan view of a pile foundation structure of a large-area round pile cap with a cross beam in one embodiment of the utility model;

[0023] Figure 2 and Figure 3 It is a structural schematic diagram of a pile foundation structure of a large-area round pile cap with a cross beam in one embodiment of the utility model;

[0024] Figure 4This is a schematic diagram of the first structural form of the connection between the connecting beam, the cylindrical pile and the pile cap in one embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of a second structural form of connection between a connecting beam, a cylindrical pile and a pile cap in one embodiment of the utility model;

[0026] Figure 6 It is a schematic structural diagram of a third form of connection among a connecting beam, a cylindrical pile and a pile cap in one embodiment of the utility model. DETAILED DESCRIPTION

[0027] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0028] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention. Therefore, the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0029] See also Figure 1, the design of the utility model takes into account the efficient use of materials. For example, the pile cap area and the pile spacing are increased, the number of piles is reduced, and the amount of concrete used is significantly reduced. The reinforced cross-type reinforcement beam and the reinforced square frame beam are cast in one piece with reinforced concrete, which improves the integrity of the structure and the efficiency of material use. The utility model reduces the amount of land excavation and filling by optimizing the arrangement of piles and adopting cylindrical pile bodies, which is conducive to protecting soil and water resources. In addition, compared with traditional construction methods, the reinforced beams and frame beams cast in one piece with reinforced concrete reduce on-site wet operations and reduce the impact of construction on the environment. The design of the utility model takes into account the long-term performance and maintainability of the structure. By introducing large-area circular cast-in-place concrete pile caps and stiffening ribs, the shear resistance and bearing capacity of the structure are improved, and the service life of the embankment is extended. This design idea is in line with the principles of sustainability and maintainability emphasized in green construction. It is in line with the current background of green construction. In addition, when an earthquake occurs, the building or structure will be subjected to the shear force and bending moment generated by the seismic wave, which will cause the pile foundation to be subjected to horizontal loads. Similarly, under extreme rainfall conditions, a large amount of rainwater will seep into the ground, changing the groundwater level and seepage field. When rainwater enters the soil layer through infiltration, it will generate seepage force, which will exert a horizontal force on the pile foundation. Taking into account the impact of the horizontal force caused by earthquakes and groundwater seepage on the pile foundation, the utility model casts the series of columns and the cross beams as a whole, and uses transverse stiffening ribs between the cross beams to enhance the integrity of the structure and improve the structure's resistance to huge horizontal deformation problems. Specifically, see Figure 1 , Figure 2 and Figure 3 The pile foundation structure of the large-area round pile cap with a cross beam provided by the utility model includes cylindrical piles 10, which are vertically and array-arranged on a foundation with a construction embankment; a connecting beam 20, which is installed at the upper pile head position of the adjacent cylindrical piles 10; a pile cap 30, which is installed at the upper pile head position of the cylindrical pile 10; a first reinforcement member 31, which is installed between the pile cap 30 and the cylindrical pile 10; and a second reinforcement member 32, which is installed between the pile cap 30 and the connecting beam 20.

[0030] In one embodiment, the connecting beams 20 are arranged in a cross shape.

[0031] In one embodiment, the connecting beams 20 are arranged in parallel. When the connecting beams 20 are arranged in parallel, the connecting beams 20 form a frame-like structure, and a part of the connecting beams 30 are arranged in a cross-like manner, so that the connecting beams 20 are connected to the upper pile head of the cylindrical pile 10 in a cross-like frame shape.

[0032] In one embodiment, one end of the connecting beam 20 is connected to the pile body of the cylindrical pile 10 by one or more methods including bolts, welding, and clamping, which can enhance the integrity of the structure, increase the constraint on the pile top, and increase the pile's ability to resist lateral displacement under horizontal loads (such as earthquake loads).

[0033] In one embodiment, the first reinforcement member 31 is in a triangular shape as a whole.

[0034] In one embodiment, the second reinforcement member 32 is rectangular in shape as a whole.

[0035] Please refer to Figure 4 , Figure 5 In one embodiment, on the pile at the corner of the entire pile foundation structure, two first reinforcement members 31 and two second reinforcement members 32 are always provided under the pile cap 30, and the two first reinforcement members 31 and the two second reinforcement members 32 are respectively adjacent at an angle of 90°, so as to reinforce the large-area pile cap 30 and ensure that it will not be damaged due to load; according to the construction requirements and actual conditions, the first reinforcement members 31 and the second reinforcement members 32 can be increased as needed to eight, and the angle between the adjacent first reinforcement members 31 and the second reinforcement members 32 is 45°.

[0036] See also Figure 6 , in some embodiments, the design is used for special circumstances; on the outermost pile of the entire pile foundation structure, there is always one first reinforcement member 31 and three second reinforcement members 32 under the pile cap 30, one first reinforcement member 31 and three second reinforcement members 32 are each adjacent at an angle of 90°, and the rest of the design is the same as above; on the piles within the entire pile foundation structure, the connecting beam 20 under the pile cap 30 is respectively provided with four or eight second reinforcement members 32, when four second reinforcement members 32 are provided, the adjacent angles between the second reinforcement members 32 are 90°, when eight second reinforcement members 32 are provided, the angles between adjacent second reinforcement members 32 are 45°, and the rest of the design is the same as above.

[0037] In some embodiments, the connecting beam 20 is a prefabricated concrete component or a cast-in-place component, and the material of the cylindrical shape 10 can be concrete, steel or other suitable materials.

[0038] In some embodiments, the pile cap 30 may be circular or elliptical in shape or in other suitable shapes. The cylindrical pile 10 may have a diameter of 500 mm to 700 mm. In some embodiments, the cylindrical piles 10 may be arranged at a spacing of 8 to 12 times the pile diameter.

[0039] In short, the structure proposed by the utility model can enhance the integrity of the pile foundation. Under the action of various connecting beams 20, each independent cylindrical pile 10 can be connected into a whole, which plays a role in sharing the load and restraining vertical settlement and horizontal displacement; and the large-area pile cap 30 connected to the top of the cylindrical pile 10 can increase the force-bearing area, and after being combined with the cushion layer 50, with the assistance of the connecting beam 20, it can resist the horizontal force on the pile column, restrain the vertical displacement of the entire structure, and increase the service life of the pile foundation; the installation of the first reinforcement member 31 and the three second reinforcement members 32 can use the reinforced concrete casting method or the assembly method, which can prevent the damage of the large-area pile cap 30 and increase the service life of the structure.

[0040] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope involved in the present application is not limited to the technical solution formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the concept of the utility model, such as a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

[0041] Except for the technical features described in the specification, the other technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present utility model, the other technical features will not be described in detail here.

Claims

1. A pile foundation structure with a large round pile cap with a cross beam, Features: include Cylindrical piles (10) are arranged vertically and in array on a foundation with a construction embankment; A connecting beam (20) is installed at the upper pile head position of the adjacent cylindrical piles (10); A pile cap (30) is installed at the upper pile head position of the cylindrical pile (10); A first reinforcement member (31) installed between the pile cap (30) and the cylindrical pile (10); A second reinforcement member (32) is installed between the pile cap (30) and the connection beam (20).

2. The pile foundation structure of the cross beam large area round pile cap according to claim 1, It is characterized in that The connecting beams (20) are arranged in a cross shape.

3. The pile foundation structure of the cross beam large area round pile cap according to claim 1, It is characterized in that The connecting beams (20) are arranged in parallel.

4. The pile foundation structure of the cross beam large area round pile cap according to claim 1, It is characterized in that One end of the connection beam (20) is connected to the pile body of the cylindrical pile (10) by means of one or more of bolts, welding, and clamping.

5. The pile foundation structure of the cross beam large area round pile cap according to claim 1, It is characterized in that The first reinforcement member (31) is in a triangular shape as a whole.

6. The pile foundation structure of the cross beam large area round pile cap according to claim 1, It is characterized in that The second reinforcement member (32) is rectangular in shape as a whole.

7. The pile foundation structure of the cross beam large area round pile cap according to claim 1, It is characterized in that The connecting beam (20) is a prefabricated concrete component or a component cast on site.

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