Pile foundation pouring supporting structure and pouring device

Abstract

The utility model relates to the technical field of bridge construction, in particular to a pile foundation pouring supporting structure and a pile foundation pouring device.The pile foundation pouring supporting structure and the pile foundation pouring device are arranged above a pile hole, the pile foundation pouring supporting structure comprises a supporting frame, a plurality of cantilever pieces, a reinforcement cage and hanging bars, and the supporting frame comprises a plurality of steel beams; the multiple steel beams are connected end to end to define a supporting frame, and first receding holes are formed in the steel beams. Each overhanging piece is arranged in a manner of penetrating through one first avoiding hole; the reinforcement cage is placed in the pile hole, and the hanging bar is connected with the overhanging piece and the reinforcement cage. The pile foundation pouring device comprises a discharging guide pipe, a hopper and the pile foundation pouring supporting structure. When the reinforcement cage is put down, the reinforcement cage is connected with the overhanging piece through the hanging bars, upward pulling force is provided for the reinforcement cage, and therefore it is guaranteed that the embedding depth of the reinforcement cage is guaranteed during concrete pouring, and the quality of a pile foundation is improved.

Description

Technical Field

[0001] The present application relates to the technical field of bridge construction, and in particular to a pile foundation grouting support structure and a grouting device. Background Art

[0002] Pile foundation is an important part of bridge construction, and cast-in-place pile foundation is an important step in pile foundation construction. The quality of pile foundation casting will affect the construction quality of the entire pile foundation.

[0003] However, in the prior art, during the pouring process of pile foundation, the hopper and the steel cage are often placed directly on the casing, which can easily cause the casing to sink and the steel cage to be buried deep enough, making the pile body prone to mud and affecting the quality of the pile foundation. Utility Model Content

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a pile foundation pouring support structure and a pouring device.

[0005] On the one hand, the present application provides a pile foundation cast-in-place support structure, which is arranged above the pile hole and includes a support frame, multiple cantilever members, a steel cage and hangers. The support frame includes multiple steel beams, and the multiple steel beams are connected end to end to form the support frame. A first avoidance hole is provided on the steel beam; each of the cantilever members is arranged through one of the first avoidance holes; the steel cage is placed in the pile hole; and the hangers connect the cantilever members and the steel cage.

[0006] Optionally, it further includes a bolt, the cantilever and the first avoidance hole are movably connected, and the bolt connects the support frame and the cantilever.

[0007] Optionally, each of the steel beams is provided with at least one of the first avoidance holes.

[0008] Optionally, it further includes a second avoidance hole and a hanging rod, wherein the hanging rod passes through the second avoidance hole and is connected to the second avoidance hole.

[0009] Optionally, a sleeper is further included, and the sleeper is arranged between the pile hole and the support frame to support the support frame.

[0010] Optionally, a casing is included, one end of which is placed at the opening of the pile hole, and the other end is located in the space formed by the sleeper and the support frame.

[0011] Optionally, the diameter of the casing is larger than the diameter of the pile hole.

[0012] When lowering the steel cage, it is connected to the cantilever through the hanger bars to provide an upward pulling force to the steel cage, thereby ensuring the buried depth of the steel cage when pouring concrete and improving the quality of the pile foundation.

[0013] On the other hand, the present application provides a pile foundation pouring device, including a feed pipe and a hopper and the above-mentioned pile foundation pouring support structure, the upper end of the feed pipe is connected to the hopper, and the feed pipe passes through the pile foundation pouring support structure and is placed in the pile hole.

[0014] Optionally, a fixed platform is included, which is placed on the support frame, and the discharge conduit passes through the fixed platform and then penetrates into the pile hole.

[0015] Since the steel cage is connected by hangers and cantilevered parts, the buried depth of the steel cage is guaranteed. The support frame is placed on the sleepers, which also prevents the casing from sinking, further improving the quality of the pile foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 This is a schematic structural diagram of a pile foundation cast-in-place support structure according to an embodiment of the present application;

[0019] Figure 2 A plan view of a pile foundation cast-in-place support structure according to an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the state of the steel cage of the pile foundation cast-in-place support structure according to an embodiment of the present application when it is placed in the pile hole;

[0021] Figure 4 This is a schematic plan view of a pile foundation pouring device according to an embodiment of the present application.

[0022] The reference numerals in the specific embodiment are as follows:

[0023] 1. Pile hole; 2. Support frame; 3. Steel beam; 4. Cantilever; 5. Steel cage; 6. Hanging rod; 7. Bolt; 8. Hanging rod; 9. Sleeper; 10. Casing; 100. Feeding guide tube; 200. Hopper; 300. Fixed platform. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned objectives, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present application, not all of the embodiments.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0027] In the description of the embodiments of the present application, "multiple" and "several" mean more than two (including two), unless otherwise clearly and specifically defined.

[0028] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] According to some embodiments of the present application, referring to Figures 1 to 3 As shown, Figure 1 This is a schematic structural diagram of the pile foundation cast-in-place support structure according to an embodiment of the present application. Figure 2 This is a plan view of the pile foundation cast-in-place support structure according to an embodiment of the present application. Figure 3 This is a schematic diagram of the state of the steel cage of the pile foundation cast-in-place support structure of the embodiment of the present application when placed in the pile hole. The pile foundation cast-in-place support structure of the embodiment of the present application is arranged above the pile hole and includes a support frame 2, multiple cantilever members 4, a steel cage 5, and hanging bars 6. The support frame 2 includes multiple steel beams 3, which are connected end to end to form the support frame 2. The steel beams 3 are provided with first avoidance holes; each cantilever member 4 is arranged to pass through a first avoidance hole; the steel cage 5 is placed in the pile hole 1; and the hanging bars 6 connect the cantilever members 4 and the steel cage 5.

[0030] Specifically, the steel beams 3 are preferably I25a I-beams, and the multiple steel beams 3 are connected by welding. The size of the support frame 2 can be determined according to the actual working conditions. The hanging rods 6 can be tied to the cantilever 4 or hung on the cantilever 4.

[0031] When lowering the steel cage 5, the steel cage 5 is connected to the cantilever 4 through the hanger 6 to provide an upward pulling force to the steel cage 5, thereby ensuring the buried depth of the steel cage 5 when pouring concrete and improving the quality of the pile foundation.

[0032] According to some embodiments of the present application, reference Figure 1 and Figure 2 As shown, the pile foundation support structure further includes bolts 7. Each steel beam 3 is provided with at least one first avoidance hole. The cantilever 4 is movably connected to the first avoidance hole. The bolts 7 connect the support frame 2 and the cantilever 4.

[0033] Specifically, the cantilever member 4 is preferably made of channel steel, and the shape of the first avoidance hole matches the cantilever member 4. The bolt 7 is preferably a 16 mm full-thread bolt.

[0034] The flexible connection between the cantilever member 4 and the first relief hole allows for selection of an appropriate length of cantilever member 4 based on the size of the support frame 2. Furthermore, the cantilever member 4 and the first relief hole are independent structures, facilitating initial manufacturing and transportation. After inserting the cantilever member 4 into the first relief hole, bolts 7 are used to secure the cantilever member 4 in place. The steel cage 5 is suspended from the cantilever member 4 to prevent it from floating or sinking during concrete pouring in the pile hole 1.

[0035] According to some embodiments of the present application, reference Figure 1 and Figure 2 The pile foundation pouring support structure also includes a second avoidance hole and a hanging rod 8. The hanging rod 8 passes through the second avoidance hole and is connected to the second avoidance hole.

[0036] Specifically, multiple second avoidance holes are provided, equidistantly spaced on the steel beam 3. The second avoidance holes on two opposing steel beams 3 need to be positioned opposite each other, meaning that the suspension rod 8 can pass through both second avoidance holes simultaneously. The shape of the second avoidance holes matches the shape of the suspension rod 8. The suspension rod 8 is preferably a 10 mm steel rod.

[0037] The suspension rod 8 also serves as a suspension device for suspending and positioning the steel cage 5 to prevent the steel cage 5 from floating up or sinking when pouring concrete in the pile hole 1. Since the suspension rod 8 is movably connected to the second avoidance hole, that is, the two are also independent structures, it is convenient for early manufacturing and transportation. The suspension rod 8 is cylindrical, which facilitates the hanging rod 6 to be hung on the suspension rod 8 without requiring excessive bending of the hanging rod 6. In addition, if the cantilever member 4 can meet the conditions for suspending the steel cage 5, the suspension rod 8 can also be omitted.

[0038] refer to Figure 3 In some embodiments, the pile foundation support structure further includes sleepers 9 and casing 10. One end of casing 10 is placed at the opening of pile hole 1, and the other end is located in the space formed by sleepers 9 and support frame 2. The diameter of casing 10 is larger than the diameter of pile hole 1. Sleepers 9 are disposed between pile hole 1 and support frame 2 to support support frame 2.

[0039] One end of the casing 10 is placed at the opening of the pile hole 1 to provide support and prevent soil near the opening of the pile hole 1 from entering the pile hole 1, causing mud to be trapped in the pile body and affecting the quality of the pile foundation. The diameter of the casing 10 is larger than the diameter of the pile hole 1, which facilitates the subsequent injection of concrete into the pile hole 1. The sleepers 9 are arranged between the pile hole 1 and the support frame 2 to support the support frame 2. The height of the sleepers 9 needs to be higher than the casing. When the support frame 2 is placed on the casing 10, a gap exists between the support frame 2 and the casing 10 to prevent the support frame 2 from exerting a downward force on the casing 10, causing the casing 10 to sink.

[0040] like Figure 4 As shown, Figure 4 This is a schematic plan view of a pile foundation grouting apparatus according to an embodiment of the present application. The apparatus comprises a feed conduit 100, a hopper 200, a fixing platform, and a pile foundation grouting support structure. The upper end of the feed conduit 100 is connected to the hopper 200. The feed conduit 100 passes through the pile foundation grouting support structure and is placed within the pile hole 1. The fixing platform 300 is placed on a support frame 2. The feed conduit 100 passes through the fixing platform 300 and extends into the pile hole 1.

[0041] The upper end of the feed pipe 100 is connected to the hopper 200, facilitating concrete pouring and preventing concrete splashing. A fixing platform 300 is placed on the support frame 2. Once the fixing platform 300 is installed, the feed pipe 100 is passed through the fixing platform 300 and then inserted into the pile hole 1. The fixing platform 300 is used to limit the position of the feed pipe 100, preventing it from swaying horizontally and improving the stability of the pile foundation pouring device.

[0042] The working principle of the pile foundation pouring device will be introduced in detail below.

[0043] When using the above-mentioned pile foundation pouring device, first place the casing 10 in the pile hole 1, and the sleeper 9 is set between the pile hole 1 and the support frame 2 to support the support frame 2, and the height of the sleeper 9 needs to be higher than the casing. When the support frame 2 is placed on the casing 10, there is a gap between the support frame 2 and the casing 10, which prevents the support frame 2 from exerting a downward force on the casing 10, causing the casing 10 to sink; then place a fixed platform on the support frame 2; when lowering the steel cage 5, the steel cage 5 is connected to the cantilever 4 through the hanger 6 to provide an upward pulling force to the steel cage 5, thereby ensuring the burial depth of the steel cage 5 when pouring concrete; finally, the feeding conduit 100 is passed through the fixed platform 300 and penetrated into the pile hole 1. The fixed platform 300 is used to limit the position of the feeding conduit 100 to prevent the feeding conduit 100 from shaking in the horizontal direction, and concrete is poured into the pile hole 1 through the hopper 200.

[0044] The content of this application is not limited to the examples listed in the embodiments. Any equivalent transformations made by ordinary technicians in this field to the technical solutions of this application after reading the description of this application are covered by the claims of this application.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A pile foundation cast-in-place support structure, arranged above the pile hole, characterized in that: The pile foundation pouring support structure comprises: A support frame (2), the support frame (2) comprising a plurality of steel beams (3), the plurality of steel beams (3) being connected end to end to enclose the support frame (2), and a first avoidance hole being provided on the steel beams (3); A plurality of cantilevered members (4), each of the cantilevered members (4) being disposed through one of the first avoidance holes; A steel cage (5), the steel cage (5) being placed in the pile hole (1); A hanger bar (6), the hanger bar (6) connecting the cantilever member (4) and the steel cage (5); It also includes a bolt (7), the cantilever (4) and the first avoidance hole are movably connected, and the bolt (7) connects the support frame (2) and the cantilever (4).

2. The pile foundation cast-in-place support structure according to claim 1, characterized in that: Each of the steel beams (3) is provided with at least one of the first avoidance holes.

3. The pile foundation cast-in-place support structure according to claim 1, characterized in that: It also includes a second avoidance hole and a hanging rod (8), wherein the hanging rod (8) passes through the second avoidance hole, and the hanging rod (8) is connected to the second avoidance hole.

4. The pile foundation cast-in-place support structure according to claim 1, characterized in that: It also includes a sleeper (9), which is arranged between the pile hole (1) and the support frame (2) and is used to support the support frame (2).

5. The pile foundation cast-in-place supporting structure according to claim 4, characterized in that: It comprises a casing (10), one end of which is placed at the opening of the pile hole (1), and the other end of which is located in the space formed by the sleeper (9) and the support frame (2).

6. The pile foundation cast-in-place supporting structure according to claim 5, characterized in that: The diameter of the casing (10) is greater than the diameter of the pile hole (1).

7. A pile foundation pouring device, characterized in that: The invention comprises a feeding conduit (100), a hopper (200) and a pile foundation pouring support structure according to any one of claims 1 to 6, wherein the upper end of the feeding conduit (100) is connected to the hopper (200), and the feeding conduit (100) passes through the pile foundation pouring support structure and is placed in the pile hole (1).

8. The pile foundation pouring device according to claim 7, characterized in that: It comprises a fixing platform (300), wherein the fixing platform (300) is placed on the supporting frame (2), and the material discharge pipe (100) passes through the fixing platform (300) and then penetrates into the pile hole (1).

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