Temporary column positioning device and temporary column positioning construction method

Abstract

The present invention discloses a temporary column positioning device and a temporary column positioning construction method, which belong to the technical field of column pile construction. The device comprises a limiting base arranged on the column pile reinforcement cage and a guide assembly arranged at the bottom of the temporary column. When the temporary column is lowered, the guide ring in the guide assembly is matched with the horizontal limiting plate and the vertical limiting plate in the limiting base, so as to achieve guidance during the lowering process of the temporary column and accurately position the temporary column at the setting position of the vertical limiting plate. The temporary column positioning device of the present invention has a simple structure and is easy to set up. It can effectively achieve precise positioning of the temporary column during the lowering process without increasing the difficulty of construction, avoid positioning errors existing in traditional construction processes, ensure the structural stability of the column pile after construction and forming, reduce the cost of precise construction of the temporary column, and has good practical value and application prospects.

Description

Technical Field

[0001] The invention belongs to the technical field of column pile construction, and particularly relates to a temporary column positioning device and a temporary column positioning construction method. Background Art

[0002] Steel supports are often used during the construction of deep foundation pit structures. To reduce the calculated length of the steel supports, temporary columns are often installed on the base column piles. This often requires underwater construction, making accurate positioning and verticality of the column base difficult to ensure. This can easily lead to eccentricity, creating safety risks.

[0003] Currently, during the construction of deep foundation pit structures, temporary columns are typically installed on the ground. Pit construction begins with the use of a slurry wall to construct bored piles, followed by the lowering of a steel cage and the pouring of bored pile concrete. Before the concrete solidifies, the temporary columns are lowered and then inserted into the concrete for anchoring. This construction method makes it difficult to position the temporary columns horizontally and vertically, leading to their tendency to shift, which can affect the subsequent bearing capacity of the resulting structure.

[0004] Another construction method involves connecting the temporary columns to the rebar cage as it is lowered, lowering the entire structure before pouring the bored pile concrete. While this method can ensure the positioning accuracy of the temporary columns to a certain extent, the need to hoist the temporary columns and the rebar cage simultaneously results in a heavy lifting load, making it difficult to hoist the columns and the rebar cage, and requiring additional protective measures, which increases the difficulty and cost of construction. Summary of the Invention

[0005] In response to one or more of the above-mentioned defects or improvement needs in the prior art, the present invention provides a temporary column positioning device and a temporary column positioning construction method, which can effectively ensure the accurate positioning of the temporary columns without increasing the construction difficulty, and ensure the structural stability of the column pile structure after construction.

[0006] To achieve the above object, one aspect of the present invention provides a temporary column positioning device, which includes a guide assembly arranged at the bottom of the temporary column and a limiting base arranged at a position corresponding to the column pile reinforcement cage;

[0007] The guide assembly includes a guide ring coaxially arranged with the temporary column; the guide ring is a circular ring structure, and the four corners of the temporary column are respectively placed on the top of the guide ring and fixed;

[0008] The limiting base includes at least two vertical limiting plates; the axis of the vertical limiting plates is perpendicular to the axis of the steel cage, and the two ends of the vertical limiting plates are respectively connected to the column pile steel bars in the steel cage, so that the at least two vertical limiting plates can form a limiting plane perpendicular to the axis of the steel cage in the steel cage;

[0009] At the same time, horizontal limit plates are respectively provided on the top surfaces of both ends of each vertical limit plate, and the horizontal limit plates are respectively connected to the steel cage and the vertical limit plates, and are used for guiding during the lowering process of the temporary column, so that the guide ring can abut against the bottom of one side of each horizontal limit plate after the temporary column is lowered into place.

[0010] As a further improvement of the present invention, a connecting plate is respectively connected to each side of the temporary column, and both ends of each connecting plate are respectively fixedly connected to the guide ring.

[0011] As a further improvement of the present invention, a plurality of stiffening plates are respectively provided corresponding to each of the connecting plates; one side of the stiffening plate is connected to the connecting plate, and the other side thereof is connected to the guide ring.

[0012] As a further improvement of the present invention, ends of the stiffening plate and / or the connecting plate do not protrude from the outside of the guide ring.

[0013] As a further improvement of the present invention, the stiffening plates provided corresponding to each connecting plate are multiple and arranged in parallel and at intervals.

[0014] As a further improvement of the present invention, the horizontal limit plate is a right-angled triangle structure, the plate surface is parallel to the axial direction of the steel cage, and its two right-angled sides are respectively connected to the column pile steel bars and the top surface of the vertical limit plate.

[0015] As a further improvement of the present invention, there are two vertical limiting plates arranged orthogonally.

[0016] Another aspect of the present invention provides a temporary column positioning construction method, which includes the following construction steps:

[0017] (1) preparing the raw materials for positioning the temporary columns when they are lowered according to the design requirements of the column pile construction, that is, setting a circular guide ring according to the size of the temporary column, setting a vertical limit plate according to the size of the column pile reinforcement cage, and setting a horizontal limit plate according to the size of the vertical limit plate and the guide ring;

[0018] (2) Tie the steel cage of the column pile and make a limit base on the steel cage according to the lowering position of the temporary column; that is, connect at least two cross-arranged vertical limit plates to the steel cage at both ends to form a limit plane perpendicular to the axis of the steel cage; at the same time, set horizontal limit plates on both ends of each vertical limit plate near the top of the steel cage;

[0019] (3) making a guide assembly at the bottom of the temporary column, that is, coaxially fixing the guide ring to the bottom of the temporary column;

[0020] (4) Position and install the steel cage with a limited base and lower it to the corresponding construction position;

[0021] (5) lowering a temporary column provided with a guide assembly so that the guide ring abuts and matches with the corresponding horizontal limit plate when the temporary column approaches the target area, and guides the temporary column to a predetermined position under the limit guide of each horizontal limit plate, so that the guide ring abuts against each vertical limit plate;

[0022] (6) Pour concrete into the column piles to complete the construction of the column piles.

[0023] As a further improvement of the present invention, before performing step (2), each of the vertical limit plates and each of the horizontal limit plates are pre-assembled, so that in step (2), only the pre-assembled limit base needs to be connected to the steel cage.

[0024] As a further improvement of the present invention, in step (1), a preparation process of connecting plates and stiffening plates is also carried out for the temporary columns, so that when performing step (3), it is necessary to first set corresponding connecting plates at the bottom of the temporary columns, and then connect the two ends of each connecting plate to the guide ring respectively, and connect the stiffening plates between the corresponding connecting plates and the guide ring.

[0025] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0026] In general, the above technical solutions conceived by the present invention have the following beneficial effects compared with the prior art:

[0027] (1) The temporary column positioning device of the present invention comprises a limiting base arranged on the column pile reinforcement cage and a guide assembly arranged at the bottom of the temporary column. When the temporary column is lowered, the guide ring in the guide assembly is matched with the horizontal limiting plate and the vertical limiting plate in the limiting base, so as to guide the temporary column and accurately position the temporary column at the setting position of the vertical limiting plate. Without increasing the construction difficulty, the accuracy of the temporary column lowering construction is effectively guaranteed, the construction error introduced by the inaccurate lowering of the temporary column is avoided, the accuracy of the column pile construction is improved, and the structural stability of the column pile after forming is guaranteed;

[0028] (2) The temporary column positioning device of the present invention can effectively improve the connection stability between the temporary column and the guide ring by providing a connecting plate and a stiffening plate corresponding to the guide ring and the temporary column, ensure the accurate positioning of the temporary column during the construction process, and improve the overall strength of the column pile construction;

[0029] (3) The temporary column positioning device of the present invention has a simple structure and is easy to set up. It can effectively achieve precise positioning of the temporary column during the lowering process without increasing the difficulty of construction, avoid the positioning error existing in the traditional construction process, ensure the structural stability of the column pile after construction and formation, reduce the cost of precise construction of the temporary column, and has good practical value and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 1 is a schematic structural diagram of the guide assembly and the limiting base in an embodiment of the present invention when they are matched;

[0031] Figure 2 1 is a schematic structural diagram of the guide assembly and the limiting base before they are matched in an embodiment of the present invention;

[0032] Figure 3 AA sectional view of the temporary column positioning device according to an embodiment of the present invention;

[0033] Figure 4 BB is a cross-sectional view of the temporary column positioning device in an embodiment of the present invention;

[0034] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0035] 1. Column pile; 2. Temporary column; 3. Guide assembly; 4. Limit base;

[0036] 101. Column pile reinforcement; 301. Guide ring; 302. Connecting plate; 303. Stiffening plate; 401. Vertical limit plate; 402. Horizontal limit plate. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0040] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0042] Example:

[0043] See also Figures 1 to 4The temporary column positioning device in a preferred embodiment of the present invention includes a guide assembly 3 disposed at the bottom of the temporary column 2 and a limiting base 4 disposed at a corresponding position on the steel mesh of the column pile 1. The location of the limiting base 4 is determined by the depth to which the temporary column 2 extends into the steel mesh, which can be adjusted according to actual needs. Furthermore, by matching the guide assembly 3 and the limiting base 4, the temporary column 2 can be accurately positioned within the column pile 1.

[0044] Specifically, the guide assembly 3 in the preferred embodiment is as follows Figures 1 to 3 As shown in , it includes a ring-shaped guide ring 301, which is coaxially arranged with the temporary column 2. In a preferred embodiment, the cross-section of the temporary column 2 is square, and the diagonal distance thereof preferably corresponds to the diameter of the guide ring 301, so that the four corners of the temporary column 2 can just be placed on the guide ring 301. At the same time, connecting plates 302 are respectively provided around the bottom of the temporary column 2, which are preferably in the form of angle steel, so that the two folded edges of the connecting plates 302 are in contact with the bottom surface and side wall surface of the temporary column 2, as shown in FIG. Figure 1 As shown in .

[0045] Furthermore, the connecting plates 302 are fixedly connected to the temporary columns 2. The connection methods include, but are not limited to, lashing, welding, and bolting. Simultaneously, each connecting plate 302 is overlapped at both ends on the guide ring 301 and fixedly connected thereto. Obviously, the guide ring 301 and the connecting plates 302 can be connected by lashing, welding, or bolting.

[0046] In order to ensure the stability of the connection between the temporary column 2 and the guide ring 301, in the preferred embodiment, a plurality of stiffening plates 303 are respectively provided corresponding to each connecting plate 302, such as Figure 3 As shown in the figure, multiple stiffening plates 303 are arranged side by side, one side of which is connected to the connecting plate 302 and the other side is connected to the guide ring 301, so as to achieve a reliable connection between the temporary column 2 and the guide ring 301. In actual installation, the end of the stiffening plate 303 preferably does not protrude from the outer peripheral wall of the guide ring 301 to avoid interference when the guide ring 301 is matched with the limiting base 4, thereby ensuring the accuracy of the matching between the guide assembly 3 and the limiting base 4.

[0047] Furthermore, the limiting base 4 in the preferred embodiment is as follows Figure 2 、 Figure 4 As shown in , it includes at least two cross-arranged vertical limit plates 401. The vertical limit plates 401 are horizontally arranged in the steel cage of the column pile 1, and their two ends are respectively fixedly connected to the column pile steel bars 101. The corresponding arrangement of the vertical limit plates 401 can effectively limit the vertical position of the temporary column 2, prevent the temporary column 2 from extending too long or too short into the column pile 1, and ensure the stability of the temporary column 2.

[0048] In the preferred embodiment, two vertical limit plates 401 are provided, and the two vertical limit plates 401 are arranged orthogonally to form a "cross" structure. However, in actual installation, the number of vertical limit plates 401 can be increased as needed, and the intersection angle between the vertical limit plates 401 can also be adjusted according to actual needs.

[0049] Furthermore, to guide the guide ring 301 on the limiting base 4, in a preferred embodiment, a horizontal limiting plate 402 is provided at each end of each vertical limiting plate 401. The horizontal limiting plate 402 is in the form of a right triangle with a plate surface parallel to the axis of the column pile 1. One of the right-angled sides extends vertically and is connected to the column pile reinforcement 101, while the other right-angled side extends axially along the vertical limiting plate 401 and is connected to the top of the vertical limiting plate 401. In this case, the multiple horizontal limiting plates 402 spaced apart in the annular direction combine to form a guide plate for the vertical movement of the guide ring 301.

[0050] During actual installation, the horizontal length of the horizontal limit plate 402 corresponds to the outer diameter of the guide ring 301, so that when the guide ring 301 abuts the vertical limit plate 401, the outer periphery of the limit ring 301 just abuts the bottom of the hypotenuse of each horizontal limit plate 402, that is, each horizontal limit plate 402 can limit the guide ring 301 to the corresponding position on the plane formed by each vertical limit plate 401, thereby accurately ensuring the installation position of the temporary column 2 in the column pile 1. After completing the above positioning, the position of the temporary column 2 can be fixed so that the temporary column 2 and the column pile 1 form an integral structure, thereby completing the overall construction.

[0051] For the temporary columns in the preferred embodiment, the positioning construction method preferably includes the following steps:

[0052] (1) Prepare the raw materials required for the guide assembly 3 and the limit base 4 according to the construction design requirements, and prepare the guide ring 301, connecting plate 302, stiffening plate 303, vertical limit plate 401 and horizontal limit plate 402 of corresponding sizes for standby use;

[0053] The guide ring 301 is annular in shape, and its dimensions are set according to the dimensions of the temporary column 2. The dimensions of the connecting plate 302 are set according to the dimensions of the temporary column 2 and the guide ring 301, and the dimensions of the stiffening plate 303 are set according to the dimensions of the temporary column 2 and the guide ring 301. Accordingly, the dimensions of the vertical limit plate 401 are set according to the dimensions of the column pile reinforcement cage, and the dimensions of the horizontal limit plate 402 are set according to the dimensions of the vertical limit plate 401 and the guide ring 301.

[0054] (2) Tie up the steel cage of the column pile 1 and make a limit base 4 on the steel cage.

[0055] A plurality of vertical limiting plates 401 are horizontally arranged on the upper edge of the vertically arranged steel cage, so that both ends of each vertical limiting plate 401 are respectively connected to the column pile steel bar 101, forming a limiting surface for the guide ring 301 to abut and limit;

[0056] Afterwards, horizontal limiting plates 402 in a right-angled triangle structure are respectively arranged on one side of both ends of the vertical limiting plate 401 near the top of the steel cage, so that one right-angled edge of the horizontal limiting plate 402 is vertically connected to the column pile steel bar 101, and the other right-angled edge is connected to the top surface of the vertical limiting plate 401 along the axial direction of the vertical limiting plate 401;

[0057] During the actual construction process, the vertical limit plates 401 and the horizontal limit plates 402 can be pre-assembled in a production workshop, and then at the construction site, it is only necessary to connect the assembled limit base 4 to the steel cage.

[0058] (3) Make a guide assembly 3 at the bottom of the temporary column 2.

[0059] First, a connecting plate 302 is provided on each side of the bottom of the temporary column 2. The connecting plate 302 is preferably connected to the temporary column 2 by welding.

[0060] Secondly, the guide ring 301 is coaxially arranged at the bottom of the temporary column 2, so that both ends of each connecting plate 302 are respectively placed on the guide ring 301 and fixed; the fixing method is preferably welding;

[0061] Afterwards, a plurality of stiffening plates 303 are connected to each corresponding connecting plate 302, so that one side of the stiffening plate 303 is connected to the connecting plate 302 and the other side is connected to the guide ring, thereby ensuring the stability of the connection between the temporary column 2 and the guide ring 301;

[0062] (4) Positioning and installing the steel cage, positioning the steel cage with the limited position base 4 and lowering it to the corresponding position;

[0063] (5) Lowering the temporary column 2 so that the temporary column 2 can be accurately lowered to the corresponding position in the steel cage under the matching of the guide assembly 3 and the limiting base 4. At this time, the outer periphery of the guide ring 301 abuts against the bottom of the oblique edge of each horizontal limiting plate 402, completing the positioning of the temporary column in the vertical and horizontal planes;

[0064] (6) Pour concrete into the column piles to complete the construction of the column piles.

[0065] The temporary column positioning device in the present invention has a simple structure and is easy to set up. It can effectively realize the precise positioning of the temporary column during the lowering process without increasing the difficulty of construction, avoid the positioning error existing in the traditional construction process, ensure the structural stability of the column pile after construction and formation, reduce the cost of precise construction of the temporary column, and has good practical value and application prospects.

[0066] It will be easily understood by those skilled in the art that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements 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 temporary column positioning device, characterized in that: It includes a guide assembly set at the bottom of the temporary column and a limit base set at the corresponding position of the column pile reinforcement cage. The combination of the two can complete the positioning of the temporary column in the vertical and horizontal planes; The guide assembly includes a guide ring coaxially arranged with the temporary column; the guide ring is a circular ring structure, and the four corners of the temporary column are respectively placed on the top of the guide ring and fixed; and connecting plates are respectively provided around the bottom of the temporary column, and a plurality of stiffening plates are respectively provided corresponding to each connecting plate, one side of the stiffening plate is connected to the connecting plate, and the other side is connected to the guide ring, so as to realize a reliable connection between the temporary column and the guide ring; and The process of making the guide assembly at the bottom of the temporary column is as follows: first, connecting plates are respectively provided on each side edge of the bottom of the temporary column, and then the guide ring is coaxially fixed to the bottom of the temporary column, so that the two ends of each connecting plate are respectively placed on the guide ring and fixed; thereafter, a plurality of stiffening plates are respectively connected to each connecting plate, with one side of the stiffening plate connected to the connecting plate and the other side connected to the guide ring; The limiting base includes two vertical limiting plates arranged orthogonally; the axis of the vertical limiting plate is perpendicular to the axis of the steel cage, and the two ends of the vertical limiting plate are respectively connected to the column pile steel bars in the steel cage, so that the at least two vertical limiting plates can form a limiting plane perpendicular to the axis of the steel cage in the steel cage; At the same time, a horizontal limit plate is respectively provided on the top surface of each of the two ends of the vertical limit plate; the horizontal limit plate is respectively connected to the steel cage and the vertical limit plate; the horizontal limit plate is a right-angled triangle structure, the plate surface is parallel to the axial direction of the steel cage, and one of its right-angled sides extends vertically and is connected to the column pile steel bar, while the other right-angled side extends along the axial direction of the vertical limit plate and is connected to the top of the vertical limit plate; the horizontal length of the horizontal limit plate corresponds to the outer diameter of the guide ring, so that when the guide ring abuts the vertical limit plate, the outer periphery of the limit ring just abuts the bottom of the hypotenuse of each horizontal limit plate, that is, each horizontal limit plate can limit the guide ring to the corresponding position on the plane formed by each vertical limit plate; Each of the vertical limiting plates and each of the horizontal limiting plates is pre-assembled into a limiting base in a production workshop and then connected to the steel cage at the construction site.

2. The temporary column positioning device according to claim 1, wherein: Ends of the stiffening plate and / or the connecting plate do not protrude beyond the outer side of the guide ring.

3. The temporary column positioning device according to claim 1, wherein: The stiffening plates corresponding to the connecting plates are multiple and arranged in parallel and at intervals.

4. A temporary column positioning construction method, used for the construction of the temporary column positioning device according to any one of claims 1 to 3, characterized in that: The construction steps include: (1) According to the requirements of the column pile construction design, the raw materials for positioning the temporary columns required for lowering are prepared, that is, a circular guide ring is set according to the size of the temporary column, a vertical limit plate is set according to the size of the column pile reinforcement cage, and a horizontal limit plate is set according to the size of the vertical limit plate and the guide ring; connecting plates and stiffening plates are also prepared for the temporary columns; (2) Tie the steel cage of the column pile and make a limit base on the steel cage according to the lowering position of the temporary column; that is, connect at least two vertical limit plates arranged in a cross pattern to the steel cage at both ends to form a limit plane perpendicular to the axis of the steel cage; at the same time, set horizontal limit plates on both ends of each vertical limit plate near the top of the steel cage; (3) Making a guide assembly at the bottom of the temporary column; first, setting connecting plates on each side of the bottom of the temporary column, and then coaxially fixing the guide ring to the bottom of the temporary column, so that the two ends of each connecting plate are respectively placed on the guide ring and fixed, and then, corresponding to each connecting plate, connecting multiple stiffening plates, so that one side of the stiffening plate is connected to the connecting plate, and the other side is connected to the guide ring; (4) Position and install the steel cage with a limited base and lower it to the corresponding construction position; (5) Lowering a temporary column provided with a guide assembly so that the guide ring abuts and matches with the corresponding horizontal limit plate when the temporary column approaches the target area, and guiding the temporary column to a predetermined position under the limit guide of each horizontal limit plate so that the guide ring abuts against each vertical limit plate; (6) Pour the concrete for the column piles to complete the construction of the column piles.

5. The temporary column positioning construction method according to claim 4, wherein: Before performing step (2), each of the vertical limit plates and each of the horizontal limit plates are pre-assembled into a limit base, so that in step (2), only the pre-assembled limit base needs to be connected to the steel cage.

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