Supporting device with retaining wall and main pile foundation constructed in coordinated mode and construction method of supporting device

Abstract

The embodiment of the invention provides a retaining wall and main pile foundation coordinated construction supporting device and a construction method thereof. The device is applied to the technical field of building foundation construction and comprises a pile foundation, a soil body and a supporting structure arranged between the pile foundation and the soil body. The supporting structure comprises a filling assembly and a retaining wall, the filling assembly is arranged on the outer side of the pile foundation in a sleeving mode, and the retaining wall is connected with the pile foundation through a fixing frame, so that stress between the supporting structure and the pile foundation does not affect each other, stable supporting of the pile foundation is guaranteed, and then the engineering safety is improved. In this way, the problem of uneven settlement caused by mutual connection of the retaining wall and the hole pile can be avoided, the pile foundation and the retaining wall are prevented from being connected into a whole, the influence of displacement of the retaining wall on the pile foundation is effectively prevented, safety is greatly improved, stable supporting of the pile foundation is ensured, and engineering cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of building foundation construction, and in particular to a supporting device for coordinated construction of a retaining wall and a main pile foundation and a construction method thereof. Background Art

[0002] During the construction of building foundations, under the condition of limited land, the existing technology generally adopts two types of support structures: anti-slip piles and retaining walls. The first type adopts anti-slip piles, but the cost of anti-slip piles is high, resulting in a high cost of the support structure; the second type adopts retaining walls, but the retaining walls will cause the engineering piles to penetrate the retaining wall structure, thereby affecting the structural safety of the building.

[0003] Accordingly, the art needs a new support device solution for the coordinated construction of retaining walls and main pile foundations to solve the above problems. Summary of the invention

[0004] The present invention provides a support device for coordinated construction of a retaining wall and a main pile foundation and a construction method thereof, which solves the technical problems in the prior art that the support structure has a high cost and the support structure affects the structural safety of the building.

[0005] According to a first aspect of the present disclosure, there is provided a support device for coordinated construction of a retaining wall and a main pile foundation, the support device comprising a pile foundation, a soil body, and a support structure disposed between the pile foundation and the soil body;

[0006] The supporting structure includes a filling component and a retaining wall. The filling component is sleeved on the outside of the pile foundation. The retaining wall and the pile foundation are connected by a fixing frame so that the forces between the supporting structure and the pile foundation do not affect each other, thereby ensuring the stable support of the pile foundation and improving the safety of the project.

[0007] According to the aspects described above and any possible implementation method, an implementation method is further provided, wherein the supporting structure includes filling sand and a sandwich panel, wherein the sandwich panel is sleeved on the outside of the pile foundation and arranged between the retaining wall and the pile foundation, and the filling sand is used to fill the gap between the sandwich panel and the retaining wall to ensure the independence of the pile foundation force.

[0008] According to the aspects described above and any possible implementation method, an implementation method is further provided, wherein a support assembly is arranged in the pile foundation, and the support assembly includes a support cage and a support frame, the outer side of the support frame is fixedly connected to the support cage, and the outer side of the support cage is connected to the inner side of the sandwich panel via a fixed frame.

[0009] According to the above aspects and any possible implementation, there is further provided an implementation, wherein the sandwich panel is a cylindrical structure.

[0010] According to the above aspects and any possible implementation, an implementation is further provided, wherein the fixing frames are respectively arranged at three positions of the upper part, the middle part and the lower part of the sandwich panel to prevent the sandwich panel from floating when pouring concrete.

[0011] According to the aspects described above and any possible implementation method, an implementation method is further provided, wherein a reserved hole is further provided on one side of the middle portion of the retaining wall, the reserved hole runs through the top to the bottom of the retaining wall, the cross-section of the reserved hole is "square", and the cross-section of the sandwich panel and the cross-section of the reserved hole are in an inscribed relationship.

[0012] According to a second aspect of the present disclosure, a method for constructing a support device for coordinated construction of a retaining wall and a main pile foundation is provided. The method is used to construct a support device for coordinated construction of a retaining wall and a main pile foundation as described in any one of the above, and the method comprises the following steps:

[0013] Obtain construction drawings;

[0014] Excavating a foundation trench based on the construction drawings and obtaining measurement data of the foundation trench;

[0015] Based on the measurement data of the foundation pit, determine the positions of the retaining wall and the pile foundation, as well as the positions of the overlapping parts between the retaining wall and the pile foundation, and mark them;

[0016] Lay the cushion layer based on the construction drawings and install the steel bars based on the marked positions;

[0017] Separate the reserved hole position from the pouring position with wooden boards, and perform concrete pouring of the retaining wall;

[0018] After the retaining wall solidifies, the retaining wall is inspected and accepted:

[0019] If the acceptance is successful, the sandwich panel is matched with the reserved hole position and the sandwich panel is positioned;

[0020] The support cage and the sandwich panel are fixedly connected by a fixing frame;

[0021] Fill the gap between the sandwich panel and the reserved hole with filling sand;

[0022] Concrete is poured into the sandwich panel to achieve concrete pouring of the pile foundation.

[0023] According to the above aspects and any possible implementation, there is further provided an implementation, before matching the sandwich panel with the reserved hole position, the method further includes:

[0024] Measure the measurement data of the reserved holes;

[0025] Determine information of the sandwich panel based on the measurement data of the reserved hole, wherein the information of the sandwich panel at least includes length and circularity data of the sandwich panel;

[0026] Based on the information of the sandwich panel, the sandwich panel is formed by welding the sandwich panel reinforcement.

[0027] The above one or more technical solutions disclosed in the present invention have at least one or more of the following beneficial effects:

[0028] By setting pile foundations, soil and a supporting structure between the pile foundations and the soil, wherein a filling component of the supporting structure is sleeved on the outside of the pile foundation, and the retaining wall of the supporting structure is connected to the pile foundation by a fixed frame, the forces between the supporting structure and the pile foundation do not interfere with each other, thereby avoiding the problem of uneven settlement caused by the connection between the retaining wall and the pile holes, preventing the pile foundation and the retaining wall from being connected as a whole, effectively preventing the influence of the displacement of the retaining wall on the pile foundation, greatly improving the safety, ensuring the stable support of the pile foundation, saving engineering costs, and avoiding the technical problems of high cost of the supporting structure in the prior art and the support structure affecting the structural safety of the building.

[0029] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. The accompanying drawings are used to better understand the present solution and do not constitute a limitation of the present disclosure. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, among which:

[0031] Figure 1 The overall structural schematic diagram of the support device in which the retaining wall and the main pile foundation of the embodiment of the present disclosure can be constructed in coordination is shown;

[0032] Figure 2 A cross-sectional schematic diagram from a first perspective of a support device in which a retaining wall and a main pile foundation of an embodiment of the present disclosure can be constructed in coordination is shown;

[0033] Figure 3 A cross-sectional schematic diagram showing a combination of a support structure and a pile foundation according to an embodiment of the present disclosure;

[0034] Figure 4 A schematic diagram showing a flat surface of a sandwich panel according to an embodiment of the present disclosure;

[0035] Figure 5A main flow chart of a method for constructing a support device for coordinated construction of a retaining wall and a main pile foundation according to an embodiment of the present disclosure is shown.

[0036] List of reference numerals:

[0037] 1: Pile foundation; 2: Support structure; 3: Earthwork; 4: Support cage; 5: Support frame; 6: Sandwich panel; 7: Fixed frame; 8: Filling sand; 9: Sandwich panel reinforcement. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0039] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0040] In the present disclosure, a filling component of a supporting structure is arranged to be sleeved on the outside of a pile foundation, and a retaining wall of the supporting structure and the pile foundation are connected by a fixing frame, so that the supporting structure and the pile foundation are subjected to independent force, thereby avoiding the occurrence of a situation in which the pile foundation moves due to displacement of the supporting structure, ensuring the stability of the pile foundation, and thereby improving the safety of the project.

[0041] Figure 1 The overall structural schematic diagram of the support device in which the retaining wall and the main pile foundation of the embodiment of the present disclosure can be constructed in coordination is shown;

[0042] Figure 2 A cross-sectional schematic diagram from a first perspective of a support device in which a retaining wall and a main pile foundation of an embodiment of the present disclosure can be constructed in coordination is shown;

[0043] Figure 3 A cross-sectional schematic diagram showing a combination of a support structure and a pile foundation according to an embodiment of the present disclosure;

[0044] Figure 4 A schematic diagram showing a flat surface of a sandwich panel according to an embodiment of the present disclosure is shown.

[0045] like Figures 1 to 4As shown, the support device for the coordinated construction of the retaining wall and the main pile foundation in the embodiment of the present disclosure mainly includes a pile foundation 1, a soil body 3, and a support structure 2 arranged between the pile foundation 1 and the soil body 3;

[0046] The support structure 2 includes a filling component and a retaining wall. The filling component is sleeved on the outside of the pile foundation 1. The retaining wall and the pile foundation 1 are connected by a fixing frame 7, so that the forces between the support structure 2 and the pile foundation 1 do not affect each other, thereby ensuring the stable support of the pile foundation 1 and improving the safety of the project.

[0047] Specifically, in some embodiments, the supporting structure 2 includes filling sand 8 and a sandwich panel 6. The sandwich panel 6 is sleeved on the outside of the pile foundation 1 and is arranged between the retaining wall and the pile foundation 1. The filling sand 8 is used to fill the gap between the sandwich panel 6 and the retaining wall to ensure the independence of the force of the pile foundation 1.

[0048] Specifically, the sandwich panel 6 is wrapped around the pile foundation 1 .

[0049] Specifically, in some embodiments, a support assembly is provided in the pile foundation 1, and the support assembly includes a support cage 4 and a support frame 5, the outer side of the support frame 5 is fixedly connected to the support cage 4, and the outer side of the support cage 4 is connected to the inner side of the sandwich panel 6 through a fixing frame 7.

[0050] Specifically, the pile foundation 1 is partially disposed within the supporting structure 2 .

[0051] Specifically, in some embodiments, the sandwich panel 6 is a cylindrical structure.

[0052] Specifically, in some embodiments, the fixing frames 7 are respectively disposed at three positions of the upper part, the middle part and the lower part of the sandwich panel 6 to prevent the sandwich panel 6 from floating when pouring concrete.

[0053] Specifically, the sandwich panel 6 is welded into a circular shape by sandwich panel reinforcement bars 9, and the spacing between the reinforcement bars is 300 mm.

[0054] Specifically, the position surrounded by the lower part of the sandwich panel 6 is below 100 cm of the bottom of the retaining wall, and the length of the sandwich panel 6 is from the part where the upper part overlaps with the retaining wall to 100 cm below the elevation of the bottom of the retaining wall.

[0055] Specifically, the thickness of the sandwich panel 6 is 50 mm.

[0056] Specifically, the pile foundation 1 and the supporting structure 2 are both reinforced concrete structures.

[0057] Specifically, in some embodiments, a reserved hole is further provided on one side of the middle portion of the retaining wall, and the reserved hole runs through the top to the bottom of the retaining wall. The cross section of the reserved hole is "square", and the cross section of the sandwich panel 6 is inscribed with the cross section of the reserved hole.

[0058] Specifically, the filling sand 8 is filled in the gap between the sandwich panel 6 and the side wall of the reserved hole.

[0059] According to the embodiments of the present disclosure, the following technical effects are achieved:

[0060] By setting a pile foundation 1, a soil body 3 and a supporting structure 2 arranged between the pile foundation 1 and the soil body 3, wherein the filling component of the supporting structure 2 is sleeved on the outside of the pile foundation 1, and the retaining wall of the supporting structure 2 is connected to the pile foundation 1 by a fixing frame 7, the forces between the supporting structure 2 and the pile foundation 1 do not interfere with each other, thereby avoiding the problem of uneven settlement caused by the connection between the retaining wall and the pile holes, preventing the pile foundation 1 and the retaining wall from being connected as a whole, effectively preventing the influence of the displacement of the retaining wall on the pile foundation 1, and greatly improving the safety, so as to ensure the stable support of the pile foundation 1, and saving the engineering cost, avoiding the technical problems of the supporting structure 2 in the prior art, such as high cost and the supporting structure 2 affecting the structural safety of the building.

[0061] In one embodiment, the description of the specific functions to be implemented can refer to the construction method of the support device for the coordinated construction of the retaining wall and the main pile foundation in the embodiment of the present disclosure.

[0062] The retaining wall and the main pile foundation are coordinated to form a support device for the implementation of Figure 5 The embodiment of the construction method of the support device for the coordinated construction of the retaining wall and the main pile foundation shown in the figure is similar in technical principles, technical problems solved and technical effects produced. Technicians in this technical field can clearly understand that for the convenience and conciseness of description, the specific working process and relevant instructions of the support device for the coordinated construction of the retaining wall and the main pile foundation can refer to the contents described in the embodiment of the construction method of the support device for the coordinated construction of the retaining wall and the main pile foundation, which will not be repeated here.

[0063] The above is an introduction to the device embodiment. The following is a method embodiment to further illustrate the solution disclosed in the present disclosure.

[0064] Figure 5 The main flow chart of the construction method of the support device for the coordinated construction of the retaining wall and the main pile foundation according to the embodiment of the present disclosure is shown. The construction method of the support device for the coordinated construction of the retaining wall and the main pile foundation is used to construct the above-mentioned support device for the coordinated construction of the retaining wall and the main pile foundation, and the method includes the following steps:

[0065] Obtain construction drawings;

[0066] Excavating a foundation trench based on the construction drawings and obtaining measurement data of the foundation trench;

[0067] Based on the measurement data of the foundation trench, the positions of the retaining wall and the pile foundation 1, as well as the position of the overlapping portion between the retaining wall and the pile foundation 1 are determined and marked;

[0068] Lay the cushion layer based on the construction drawings and install the steel bars based on the marked positions;

[0069] Separate the reserved hole position from the pouring position with wooden boards, and perform concrete pouring of the retaining wall;

[0070] After the retaining wall solidifies, the retaining wall is inspected and accepted:

[0071] If the acceptance is successful, the sandwich panel 6 is matched with the reserved hole position and the sandwich panel 6 is positioned;

[0072] The support cage 4 and the sandwich panel 6 are fixedly connected by a fixing frame 7;

[0073] Fill the gap between the sandwich panel 6 and the reserved hole with filling sand 8;

[0074] Concrete is injected into the sandwich panel 6 to achieve concrete pouring of the pile foundation 1 .

[0075] Specifically, the retaining wall is inspected and accepted through the following steps:

[0076] Get the reserved hole data of the retaining wall and check whether the reserved hole data matches the sandwich panel 6:

[0077] If the inspection result is yes, the acceptance is considered successful;

[0078] Otherwise, it is considered as acceptance failure.

[0079] Specifically, based on the reserved hole data of the retaining wall, if the cross section of the sandwich panel 6 is inscribed with the cross section of the reserved hole, it is determined that the reserved hole data matches the sandwich panel 6; otherwise, it is determined that the reserved hole data does not match the sandwich panel 6.

[0080] Specifically, after laying the cushion layer based on the construction drawings, the method further includes supporting a template for the reserved holes based on the size of the pile foundation 1 diameter + 300 mm in the construction drawings, so that the positions of the reserved holes are reserved.

[0081] Specifically, the method further includes, when there is a cap in the construction drawing, setting up a template based on the size of the cap in the construction drawing + 200 mm, so as to reserve a position for the pile foundation 1.

[0082] Specifically, the installation of steel bars based on the marked locations includes:

[0083] Install the horizontal foundation steel bars, pre-arrange the vertical steel bars of the retaining wall, and after the foundation concrete is poured and the foundation concrete poured part is preliminarily inspected and accepted, install the vertical steel bars of the retaining wall. When installing the steel bars, avoid the position marked on the pile foundation 1.

[0084] Specifically, a plurality of support frames 5 are evenly distributed outside the support cage 4 .

[0085] Specifically, a support frame 5 is fixed in the support cage 4 by welding, the cross section of the support frame 5 is "triangular", the cross section of the support cage 4 is "circular", and the cross section of the support frame 5 is circumscribed to the cross section of the support cage 4.

[0086] Specifically, the method further includes:

[0087] The sandwich panel 6 is welded and wrapped by the welding while the supporting cage 4 is rolled and fixed.

[0088] Specifically, during welding, it is ensured that the distance between the support cage 4 and the sandwich panel 6 is the preset concrete protective layer thickness.

[0089] Specifically, the support cage 4 is also provided with a plurality of tightening hoops, which are evenly distributed on the inner side of the support cage 4 to ensure the stability of the support cage 4 .

[0090] Specifically, the support cage 4 is also provided with a plurality of circular stirrups, the circular stirrups are made of steel bars with a diameter of C14, and the spacing between the circular stirrups is the same as the spacing between the tightening hoops.

[0091] Specifically, the top, middle and bottom of the sandwich panel 6 are fixedly connected with fixing frames 7 for fixing the position of the sandwich panel 6 .

[0092] Specifically, in some embodiments, before matching the sandwich panel 6 with the reserved hole position, the method further includes:

[0093] Measure the measurement data of the reserved holes;

[0094] Based on the measurement data of the reserved holes, determine the information of the sandwich panel 6, wherein the information of the sandwich panel 6 at least includes the length and circularity data of the sandwich panel 6;

[0095] Based on the information of the sandwich panel 6 , the sandwich panel 6 is formed by welding the sandwich panel reinforcement 9 .

[0096] Specifically, the method further includes: performing construction joint treatment on the joint surface between the cast-in-place reinforced concrete retaining wall and the original cast retaining wall, so that the new and old concrete between the cast-in-place reinforced concrete retaining wall and the original cast retaining wall are tightly combined.

[0097] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the described module can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0098] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should be aware that the present disclosure is not limited by the order of the actions described, because according to the present disclosure, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required by the present disclosure.

[0099] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0100] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A support device for coordinated construction of a retaining wall and a main pile foundation, characterized in that: The support device comprises a pile foundation (1), a soil body (3), and a support structure (2) arranged between the pile foundation (1) and the soil body (3); The support structure (2) comprises a filling component and a retaining wall, wherein the filling component is sleeved on the outside of the pile foundation (1), and the retaining wall and the pile foundation (1) are connected via a fixing frame (7), so that the forces between the support structure (2) and the pile foundation (1) do not affect each other, thereby ensuring the stable support of the pile foundation (1), thereby improving the safety of the project.

2. The support device according to claim 1, characterized in that: The supporting structure (2) comprises filling sand (8) and a sandwich panel (6); the sandwich panel (6) is sleeved outside the pile foundation (1) and arranged between the retaining wall and the pile foundation (1); the filling sand (8) is used to fill the gap between the sandwich panel (6) and the retaining wall to ensure the independence of the force on the pile foundation (1).

3. The support device according to claim 2, characterized in that: A support assembly is arranged in the pile foundation (1), and the support assembly comprises a support cage (4) and a support frame (5), the outer side of the support frame (5) is fixedly connected to the support cage (4), and the outer side of the support cage (4) is connected to the inner side of the sandwich panel (6) via a fixing frame (7).

4. The support device according to claim 3, characterized in that: The sandwich panel (6) is a cylindrical structure.

5. The support device according to claim 4, characterized in that: The fixing frames (7) are respectively arranged at three positions of the upper part, the middle part and the lower part of the sandwich panel (6) to prevent the sandwich panel (6) from floating when pouring concrete.

6. The support device according to claim 5, characterized in that: A reserved hole is also provided on one side of the middle of the retaining wall, the reserved hole runs through the top to the bottom of the retaining wall, the cross section of the reserved hole is "square", and the cross section of the sandwich panel (6) is in an inscribed relationship with the cross section of the reserved hole.

7. A method for constructing a support device for coordinated construction of a retaining wall and a main pile foundation, characterized in that: The method is used to construct a support device for coordinated construction of a retaining wall and a main pile foundation according to any one of claims 1 to 6, and the method comprises the following steps: Obtain construction drawings; excavating a foundation trench based on the construction drawings and obtaining measurement data of the foundation trench; Based on the measurement data of the foundation pit, the positions of the retaining wall and the pile foundation (1) and the position of the overlapping portion between the retaining wall and the pile foundation (1) are determined and marked; Lay the cushion layer based on the construction drawings and install the steel bars based on the marked positions; Separate the reserved hole position from the pouring position with wooden boards, and perform concrete pouring of the retaining wall; After the retaining wall solidifies, the retaining wall is inspected and accepted: If the acceptance is successful, the sandwich panel (6) is matched with the reserved hole position and the sandwich panel (6) is positioned; The support cage (4) and the sandwich panel (6) are fixedly connected via a fixing frame (7); Filling the gap between the sandwich panel (6) and the reserved hole with filling sand (8); Concrete is injected into the sandwich panel (6) to achieve concrete pouring of the pile foundation (1).

8. The construction method according to claim 7, characterized in that: Before matching the sandwich panel (6) with the reserved hole position, the method further comprises: Measure the measurement data of the reserved holes; Based on the measurement data of the reserved hole, determining the information of the sandwich panel (6), wherein the information of the sandwich panel (6) at least includes the length and circularity data of the sandwich panel (6); Based on the information of the sandwich panel (6), the sandwich panel (6) is formed by welding the sandwich panel reinforcement (9).

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