Pile structure with bearing platform for reducing differential settlement in coastal area

Abstract

The utility model relates to a pile structure with a bearing platform for reducing differential settlement in a coastal area, which comprises a pile structure, and a connecting steel bar extending upwards is arranged at the top end of the middle part of the pile structure; the bearing platform is of a cube structure; a through hole which is through up and down is formed in the middle of the body, and the through hole is divided into a lower connecting hole and an upper penetrating hole; the aperture of the through hole is small and the aperture of the connecting hole is large, so that the through hole forms a step shape; crisscrossed in-hole steel bars are arranged at the through holes; wherein the top of the pile structure is sleeved with the bearing platform sleeve through the connecting holes, and the extending steel bars extend to the top face of the bearing platform through the through holes. Concrete is cast in the through hole in situ, so that the bearing platform and the pile structure are connected into a whole; the bottom surface, connected to the bearing platform, of the height adjusting piece is provided with a lower overhanging steel bar. The structure for increasing the contact area with the ground is additionally arranged to restrain the pile structure from sinking, in addition, the integrity of the building foundation is improved to restrain the pile structure from sinking, and finally the purpose of reducing differential settlement is achieved.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a pile structure with a bearing platform for reducing uneven settlement in coastal areas. Background Art

[0002] Due to geological problems, coastal areas are prone to uneven settlement of pipe piles and cast-in-place piles. The current common practice is still to increase the depth of the pile foundation, which will invisibly increase the corresponding construction period and construction costs. Summary of the Invention

[0003] The purpose of the utility model is to provide a pile structure with a pedestal for reducing uneven settlement in coastal areas. It suppresses the sinking of the pile structure by additionally setting a structure that increases the contact area with the ground. It also suppresses the sinking of the pile structure by improving the integrity of the building foundation, ultimately achieving the purpose of reducing uneven settlement.

[0004] The utility model is realized through the following technical solutions: a pile structure with a cap for reducing uneven settlement in coastal areas, comprising

[0005] The pile structure has a connecting steel bar extending upward at the top of the middle part;

[0006] The pedestal is a cubic structure; a through hole is provided in the middle thereof, which is divided into a connecting hole at the lower part and a through hole at the upper part; the through hole has a small diameter and the connecting hole has a large diameter, so that the through hole forms a stepped shape; the through hole is provided with crisscrossing steel bars;

[0007] The cap sleeve is installed on the top of the pile structure through the connection hole, and the extended steel bar extends through the through hole to the top surface of the cap; concrete is poured in the through hole to connect the cap and the pile structure into one.

[0008] It also includes a height adjustment member, which includes a screw, an internally threaded tube, an upper threaded connection cap, and a support plate. The screw and the internally threaded tube are threadedly connected to each other, the top end of the screw is provided with an upper threaded connection cap, and the bottom end of the internally threaded tube is rotatably connected to the support plate.

[0009] Among them, a lower protruding steel bar is provided on the bottom surface of the pedestal, and the lower protruding steel bar is separately connected to the upper threaded connection cap.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. By rigidly connecting the cap to the precast piles and subsequently adding support members to the cap, the pile structure can be effectively prevented from sinking and uneven settlement can be effectively reduced.

[0012] 2. By connecting the steel bars and the end steel bars of the precast beams, and matching the pedestal extension steel bars, and by post-pouring concrete, the pedestal, column structure and precast beams are connected to form a rigid whole, effectively avoiding subsequent uneven settlement. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For Figure 1 Schematic diagram of the structure with wooden formwork added to the foundation;

[0015] Figure 3 This is a side section of the foundation;

[0016] Figure 4 This is a top view of the cap installed on the pile structure;

[0017] Figure 5 This is a top view of the precast beam and pedestal node.

[0018] Explanation of numbers: 1 pile structure, 11 connecting steel bars, 2 pedestal, 21 connecting hole, 22 through hole, 23 steel bars in the hole, 24 lower protruding steel bars, 25 pedestal protruding steel bars, 3 support adjustment parts, 31 screw rod, 32 internal threaded pipe, 33 upper threaded connection cap, 34 support plate, 4 precast beam, 41 beam end steel bars, 5 wooden formwork. DETAILED DESCRIPTION

[0019] The utility model is described in detail below with reference to the accompanying drawings:

[0020] like Figure 1-5 Shown: A pile structure with a cap for reducing uneven settlement in coastal areas, including

[0021] The pile structure 1 has a connecting steel bar 11 extending upward at the top of the middle portion;

[0022] The support 2 is a cubic structure; a through hole is provided in the middle thereof, which is divided into a lower connecting hole 21 and an upper through hole 22; the through hole 22 has a small diameter and the connecting hole 21 has a large diameter, so that the through hole forms a stepped shape; the through hole 22 is provided with crisscrossing steel bars 23;

[0023] The cap 2 is sleeved on the top of the pile structure 1 through the connection hole 21, and the extended steel bar extends to the top surface of the cap 2 through the through hole 22; concrete is poured in the through hole 22 to connect the cap 2 and the pile structure 1 as a whole;

[0024] The support and adjustment member 3 is further included. The support and adjustment member 3 includes a screw rod 31, an internally threaded tube 32, an upper threaded connection cap 33, and a support plate 34. The screw rod 31 and the internally threaded tube 32 are threadedly connected to each other. The upper threaded connection cap 33 is provided at the top end of the screw rod 31, and the bottom end of the internally threaded tube 32 is rotatably connected to the support plate 34.

[0025] A lower protruding steel bar 24 is provided on the bottom surface of the base 2 , and the lower protruding steel bar 24 is separately connected to the upper threaded connection cap 33 .

[0026] Generally speaking, the main methods for controlling uneven settlement include increasing the contact area and increasing the foundation depth. This application adopts the method of increasing the contact area, but this contact area is achieved by adding a post-mounted support adjustment member 3 to the pedestal. Specifically, a support is added between the pedestal and the ground, and after the pedestal and column structure are cast as one, the pedestal is used to suppress settlement.

[0027] During actual use, the pile structure construction is completed first, and then the pedestal 2 is installed, wherein the pedestal is sleeved on the top of the pile structure through the connecting hole. At this time, the connecting steel bars 11 of the pile structure 1 pass through the through hole 22. Since the through hole 22 is provided with crisscrossing in-hole steel bars 23, after pouring concrete, the rigid connection between the pedestal 2 and the top of the pile structure can be guaranteed.

[0028] Then, the support adjustment member 3 is connected to the lower protruding steel bar on the bottom surface of the base 2, and the length of the support adjustment member 3 is adjusted so that the support plate 34 is supported on the ground; it should be noted that, if necessary, a wooden template 5 can be laid under the support plate 34 to increase the contact area with the ground, and then the length of the support adjustment member 3 is adjusted so that the support plate 34 is supported on the wooden template.

[0029] In addition, the support adjustment member 3 is generally arranged rotationally symmetrically with the central axis of the support platform 2 as the center.

[0030] It should also be noted that the bottom end of the internally threaded tube 32 is pivotally connected to the support plate 34; this is a conventional structure, simply employing a universal joint. Alternatively, an annular protrusion could be provided on the outer periphery of the bottom end of the internally threaded tube, and a connecting seat with an internal annular groove could be provided at the top of the support plate, with the protrusion embedded in the annular groove. Since this pivoting connection is conventional, it will not be further described here.

[0031] The top surface of the cap 2 is provided with four groups of cap extension steel bars 25 arranged in a rectangular array. A gap for accommodating the precast beam 4 is formed between any two adjacent cap extension steel bars 25. The end steel bars 41 of the precast beam 4 penetrate into the area where the connecting steel bars 11 are located.

[0032] Among them, the area where the protruding steel bars 25 of the base are located and the area where the connecting steel bars 11 are located are provided with post-cast concrete.

[0033] This design can ensure that the prefabricated beam 4 subsequently supported on the pedestal can be well connected to the pedestal and the pile structure to form a whole, thereby improving the connection strength at the node and ensuring the overall rigidity of the entire building structure to form a complete body.

[0034] The pile structure 1 is generally a pipe pile or a cast-in-place pile.

[0035] It should be noted that the construction sequence here is as follows:

[0036] Step 1, complete pile structure construction;

[0037] Step 2: Install the cap on the pile structure and pour concrete into the through hole;

[0038] Step 3: After the concrete solidifies in step 2, install the support adjustment member 3 on the foundation 2 and adjust the support adjustment member 3 until the support plate contacts the ground;

[0039] Step 4: hoist the precast beams and lay the formwork, pour concrete on the cap, and connect the cap, column structure, and precast beams to form a whole;

[0040] Step 5: After the concrete in step 4 solidifies, remove the support adjustment member 3.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pile structure with a cap for reducing uneven settlement in coastal areas, characterized by: include A pile structure (1) having a connecting steel bar (11) extending upward at the top of the middle portion; The support (2) is a cubic structure; a through hole is provided in the middle thereof, and the through hole is divided into a lower connecting hole (21) and an upper through hole (22); the through hole (22) has a small diameter and the connecting hole (21) has a large diameter, so that the through hole forms a step-like shape; the through hole (22) is provided with crisscrossing in-hole steel bars (23); The cap (2) is sleeved on the top of the pile structure (1) through the connecting hole (21), and the extended steel bar is extended to the top surface of the cap (2) through the through hole (22); concrete is poured in the through hole (22) to connect the cap (2) and the pile structure (1) into one body; The support adjusting member (3) further comprises a screw rod (31), an internally threaded tube (32), an upper threaded connection cap (33) and a support plate (34); the screw rod (31) and the internally threaded tube (32) are threadedly connected to each other; the upper threaded connection cap (33) is provided at the top end of the screw rod (31); and the bottom end of the internally threaded tube (32) is rotatably connected to the support plate (34); Wherein, a lower protruding steel bar (24) is provided on the bottom surface of the support platform (2), and the lower protruding steel bar (24) is separately connected to the upper threaded connection cap (33).

2. The pile structure with a cap for reducing uneven settlement in coastal areas according to claim 1, characterized in that: The top surface of the pedestal (2) is provided with four groups of pedestal extension steel bars (25) arranged in a rectangular array, and a gap for accommodating the precast beam (4) is formed between any two adjacent pedestal extension steel bars (25); the beam end steel bars (41) of the precast beam (4) penetrate into the area where the connecting steel bars (11) are located; The area where the supporting platform protruding steel bars (25) are located and the area where the connecting steel bars (11) are located are provided with post-cast concrete.

3. The pile structure with a cap for reducing uneven settlement in coastal areas according to claim 1, characterized in that: The pile structure (1) is a pipe pile or a cast-in-place pile.

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