Prefabricated formwork structure of assembled foundation pit water-collecting well

Abstract

The utility model relates to the technical field of building construction foundation pit formwork erecting, in particular to an assembly type foundation pit water collecting well prefabricated formwork erecting structure which comprises at least one set of formwork erecting units. The formwork supporting unit comprises two upper prefabricated slabs arranged oppositely and two lower prefabricated slabs arranged oppositely. First lug plates are arranged on the two sides of the upper prefabricated plate respectively; the two lower precast slabs are oppositely arranged; second lug plates are arranged on the two sides of the lower prefabricated plate correspondingly. The first lug plates and the second lug plates are in lap joint in an up-down staggered mode. The supporting rods are vertically arranged on the side face of the lower prefabricated plate; and the supporting part is connected between the two supporting rods which are oppositely arranged in an abutting mode. According to the assembly type foundation pit water-collecting well prefabricated formwork structure, through the method that the upper prefabricated slab and the lower prefabricated slab are spliced and hoisted, splicing installation can be directly conducted on site, a brick forming die does not need to be built on site, the problems that in brick forming die construction, a large number of manpower and material resources are needed for on-site manufacturing, installation and dismantling, and the construction period is long are solved, and the construction efficiency and precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit formwork support in building construction, and more specifically, it particularly relates to a prefabricated formwork structure for assembled foundation pit sump wells. Background Technique

[0002] In traditional foundation pit sump well construction, traditional brick formwork or on-site wooden formwork support is generally used as the formwork support method; traditional manual on-site bricklaying of brick formwork requires cumbersome on-site bricklaying, plastering and other work. The on-site wooden formwork support process is cumbersome and complex, time-consuming and laborious, and difficult to control accuracy, which is likely to cause waste of resources and environmental burden. At the same time, the patent with the publication number CN114809000B discloses a rapid construction method for precast slab brick formwork. Although some processes use precast hollow slabs, there are still many on-site operation processes, such as pouring cushion layer, pouring bottom slab concrete, etc., and there are still problems of cumbersome and complex processes.

[0003] Aiming at the problem of cumbersome and complex traditional brick formwork or on-site wooden formwork support process for sump well parts, to overcome these disadvantages, the utility model proposes a brand-new precast slab formwork structure, which avoids problems such as the need for a large amount of manpower and material resources for on-site production, installation and demolition of brick formwork and long construction period through the method of integral prefabrication and hoisting. Content of the Utility Model

[0004] The utility model aims to provide an assembled prefabricated formwork structure for foundation pit sump wells to overcome the above-mentioned situations.

[0005] An assembled prefabricated formwork structure for foundation pit sump wells includes at least one set of formwork units;

[0006] The formwork unit includes:

[0007] Two upper precast slabs arranged oppositely; first ear plates are respectively arranged on both sides of the upper precast slab;

[0008] Two lower precast slabs arranged oppositely; second ear plates are respectively arranged on both sides of the lower precast slab; the first ear plates and the second ear plates are overlapped up and down in a staggered manner;

[0009] Support rods vertically arranged on the side surface of the lower precast slab;

[0010] And a support member abutted between two oppositely arranged support rods.

[0011] Further, the upper precast slab and the lower precast slab have the same thickness, and the length of the first ear plate is the same as the thickness of the upper precast slab; the length of the second ear plate is the same as the thickness of the lower precast slab.

[0012] Further, the upper precast slab and the lower precast slab have the same height;

[0013] The first ear plate is located in the upper half of the upper precast slab, and the height of the first ear plate is half of the height of the upper precast slab;

[0014] The second ear plate is located in the lower half of the lower precast slab, and the height of the second ear plate is half of the height of the lower precast slab.

[0015] Furthermore, the support rod abuts against the inner side surface of the lower precast slab.

[0016] Furthermore, the support member includes a bracing rod and adjustable shoe supports adjustably connected to both ends of the bracing rod, and the adjustable shoe supports abut against the support rod.

[0017] Furthermore, the bracing rod is a hollow circular pipe.

[0018] Furthermore, the adjustable shoe support includes a grooved bearing plate, a screw rod, and an adjustable nut; the groove of the grooved bearing plate is used to accommodate the support rod; one end of the screw rod is fixedly connected to the grooved bearing plate, and the adjustable nut is threadedly connected to the screw rod.

[0019] Furthermore, a first notch is arranged on the lower end surface of the upper precast slab; a first lifting ring is arranged on the upper end surface of the upper precast slab.

[0020] Furthermore, a second notch is arranged on the lower end surface of the lower precast slab; a second lifting ring is arranged on the upper end surface of the lower precast slab.

[0021] Furthermore, the number and positions of the first notches and the first lifting rings are adapted to each other.

[0022] Furthermore, the number and positions of the second notches and the second lifting rings are adapted to each other.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] For the problem of the cumbersome and complex traditional brick formwork or on-site wooden formwork support process for the sump part, this assembled prefabricated formwork structure for the foundation pit sump can be directly spliced and installed on-site through the method of splicing and hoisting the upper precast slab and the lower precast slab, without the need to build brick formwork on-site, avoiding problems such as the need for a large amount of manpower and material resources for on-site production, installation, and demolition of brick formwork, and a long construction period, thus improving the construction efficiency and accuracy.

[0025] The four-way splicing design greatly simplifies the on-site installation procedure and shortens the construction period; the modular prefabricated parts of the upper precast slab and the lower precast slab ensure accurate dimensions, improve the overall project quality, guarantee the construction accuracy, reduce the on-site labor demand, reduce the material loss, and can also reduce the on-site waste and environmental impact compared with the traditional brick formwork or on-site wooden formwork support process, meeting the concept of green construction. Brief Description of the Drawings

[0026] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0027] Figure 1 is a schematic diagram of the overall structure of the prefabricated formwork structure of the assembled foundation pit sump in the embodiment.

[0028] Figure 2 is a schematic diagram of the disassembled structure of the prefabricated formwork structure of the assembled foundation pit sump in the embodiment.

[0029] Figure 3 is a schematic diagram of the upper prefabricated plate in the embodiment.

[0030] Figure 4 is a schematic diagram of the lower prefabricated plate in the embodiment.

[0031] Figure 5 is a schematic diagram of the support rod and the support member in the embodiment.

[0032] Figure 6 is a front view of the prefabricated formwork structure of the assembled foundation pit sump in the embodiment.

[0033] Figure 7 is a front view of the prefabricated formwork structure of the assembled foundation pit sump in the embodiment from another angle.

[0034] Figure 8 is a front view of the assembled two-layer formwork units in the embodiment.

[0035] Figure 9 is a front view of the assembled two-layer formwork units in the embodiment from another angle.

[0036] In the drawings: 1. Upper prefabricated plate; 11. First ear plate; 12. First notch; 13. First lifting ring; 2. Lower prefabricated plate; 21. Second ear plate; 22. Second notch; 23. Second lifting ring; 3. Support rod; 4. Cross brace; 5. Adjustable jack; 51. Grooved support plate; 52. Screw rod; 53. Adjustable nut. Detailed Description of the Preferred Embodiments

[0037] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0038] As shown in Figures 1-2 the figure, this embodiment provides a prefabricated formwork structure for an assembled foundation pit sump, which is assembled layer by layer from at least one set of formwork units. Each formwork unit includes two upper precast slabs 1 arranged oppositely, two lower precast slabs 2 arranged oppositely, a support rod 3 and a support member. Among them, the support rod 3 and the support member are used in cooperation to jointly support the two lower precast slabs 2.

[0039] Specifically, as shown in Figures 1-6 the figure, the two upper precast slabs 1 are arranged oppositely, and first ear plates 11 are respectively arranged on both sides of each upper precast slab 1; the two lower precast slabs 2 are arranged oppositely, and second ear plates 21 are respectively arranged on both sides of each lower precast slab 2. The first ear plates 11 and the second ear plates 21 are overlapped up and down to form a formwork frame;

[0040] More specifically, the upper precast slab 1 and the lower precast slab 2 have the same thickness and the same height; the length of the first ear plate 11 is the same as the thickness of the upper precast slab 1, and the length of the second ear plate 21 is the same as the thickness of the lower precast slab 2. The first ear plate 11 is located in the upper half of the upper precast slab 1, and the height of the first ear plate 11 is half of the height of the upper precast slab 1. The second ear plate 21 is located in the lower half of the lower precast slab 2, and the height of the second ear plate 21 is half of the height of the lower precast slab 2. Therefore, by splicing two upper precast slabs and two lower precast slabs to form a frame type, and the first ear plate 11 and the second ear plate 21 are overlapped, the stability between the two-layer formwork can be ensured.

[0041] In order to maintain the overall stability of the formwork frame, a support rod 3 is vertically arranged on the inner side surface of the lower precast slab 2, and a support member is arranged between the two oppositely arranged support rods 3 in contact.

[0042] In this embodiment, the support rod 3 is a pipe body, and the support rod 3 is in contact with the inner side surface of the lower precast slab. Specifically, the support rod 3 in this embodiment is two round pipes arranged side by side. In actual operation, the support rod 3 can also be multiple square pipes arranged side by side.

[0043] Specifically, as shown in Figure 1 、 Figure 2 、 Figure 5As shown in the figure, the support member includes a strut 4 and adjustable shoe supports 5 adjustably connected to both ends of the strut 4. The adjustable shoe support 5 abuts against the support rod 3. Among them, the strut 4 is a hollow circular tube. The adjustable shoe support 5 includes a grooved tray 51, a screw rod 52 and an adjustable nut 53. The groove of the grooved tray 51 is used to accommodate the support rod 3. One end of the screw rod 52 is fixedly connected to the grooved tray 51, and the adjustable nut 53 is threadedly connected to the screw rod 52. When the support member is in use, two adjustable shoe supports 5 are adopted. Their screw rods 52 respectively extend into both ends of the strut 4. By adjusting the two adjustable nuts 53, the extending distances of the adjustable shoe supports 5 are different, so as to form an overall support member with a suitable length. That is, when in use, the adjustable nut abuts against the end of the strut 4.

[0044] In this embodiment, a first notch 12 is arranged on the lower end surface of the upper precast slab 1, and a first lifting ring 13 is arranged on the upper end surface of the upper precast slab 1. A second notch 22 is arranged on the lower end surface of the lower precast slab 2, and a second lifting ring 23 is arranged on the upper end surface of the lower precast slab 2. Among them, the first lifting ring 13 and the second lifting ring 23 are respectively "U"-shaped round steel embedded in the upper precast slab 1 and the lower precast slab 2, which is convenient for the hoisting equipment to be hooked. Specifically, at least two symmetrically distributed first lifting rings 13 are arranged on the upper precast slab 1. In this embodiment, two first lifting rings 13 are arranged on the upper precast slab 1 as symmetrically distributed lifting points to ensure balanced and stable hoisting; the number and position of the first notch 12 and the first lifting ring 13 are adapted, and the size of the first notch 12 is slightly larger than that of the first lifting ring, ensuring that when the lower precast slab is hoisted, its first lifting ring 13 can pass through smoothly as a lifting point without being blocked, and at the same time ensuring that there is enough space between the two precast slabs for stable splicing. Similarly, at least two symmetrically distributed second lifting rings 23 are arranged on the lower precast slab 2. In this embodiment, two second lifting rings 23 are arranged on the lower precast slab 2 as symmetrically distributed lifting points to ensure balanced and stable hoisting; the number and position of the second notch 22 and the second lifting ring 23 are adapted, and the size of the second notch 22 is slightly larger than that of the second lifting ring 23, ensuring that when the lower precast slab is hoisted, its second lifting ring 23 can pass through smoothly as a lifting point without being blocked, and at the same time ensuring that there is enough space between the two precast slabs for stable splicing, as Figures 8-9 shown.

[0045] The prefabricated formwork support structure for the assembled foundation pit sump provided in this embodiment first prefabricates the upper precast slab 1 and the lower precast slab 2 outside the site according to the foundation pit dimensions. Each precast slab designs the thickness of the precast slab, configures the steel bars inside the slab, and configures the number of layers of the formwork support units according to the depth of the sump foundation pit and the soil conditions. Specifically, the upper precast slab 1 and the lower precast slab 2 are cast and formed using concrete materials, and the internal reinforcement is designed based on the calculation results of the sump load to ensure sufficient structural strength and stability. The sizes of the upper precast slab 1 and the lower precast slab 2 are precisely customized according to the design drawings of the foundation pit sump to ensure precise matching during on-site installation. First ear plates 11 are designed on both sides of the upper precast slab 1, with a height of half of the total height of the upper precast slab 1 and located in the upper half, for lapping with the second ear plates 21 of the lower precast slab 2; the second ear plates 21 of the lower precast slab 2 are designed correspondingly and located in the lower half to ensure a stable connection between the two layers of precast slab bodies.

[0046] First, use a hoisting mechanical equipment to hoist two lower precast slabs 2. After the hoisting is completed, use a temporary fixing device composed of a support rod 3 and a matching support component for fixing. Then hoist two upper precast slabs 1, and place the first ear plates 11 on both sides of the upper precast slab 1 on the second ear plates 21 of the lower precast slab 2 to form a stable splicing structure. Then, use the same method to splice each precast slab in the formwork support units of each upper layer in turn, and use a temporary fixing device composed of a support rod 3 and a matching support component to fix the lower precast slab 2 of each layer. In this embodiment, a temporary fixing device composed of a support rod 3 and a matching support component is used, and the length and fastening degree can be adjusted according to actual needs to ensure the overall stiffness of the entire formwork support unit and prevent the lower precast slab 2 from shifting during the concrete installation process. The support rod 3 extends upward from the lower precast slab 2 by a certain distance, that is, the top end of the support rod 3 is above the upper end face of the lower precast slab, and the bottom end of the support rod 3 is in the middle and lower part of the lower precast slab. Therefore, the support plate can transfer the lateral force and ensure the lateral stable support of the new layer of lower precast slab 2.

[0047] For the problem of the cumbersome and complex traditional brick formwork or on-site wooden formwork support process for the sump part, this prefabricated formwork support structure for the assembled foundation pit sump can be directly spliced and installed on-site through the splicing and hoisting methods of the upper precast slab and the lower precast slab, without the need to build brick formwork on-site, avoiding problems such as the need for a large amount of manpower and material resources for on-site production, installation and demolition of brick formwork, and a long construction period, thus improving the construction efficiency and accuracy.

[0048] The four-way splicing design greatly simplifies the on-site installation procedure and shortens the construction period; the modular prefabricated parts of the upper precast slab and the lower precast slab ensure accurate dimensions, improve the overall project quality, ensure the construction accuracy, reduce the on-site labor demand, reduce the material loss, and can also reduce the on-site waste and environmental impact compared with the traditional brick formwork or on-site wooden formwork support process, meeting the concept of green construction.

[0049] The installation process using the prefabricated formwork structure for the assembled foundation pit sump provided in this embodiment includes:

[0050] S1. According to the construction plan, install two lower prefabricated plates 2 layer by layer through the second lifting rings 23, and use the temporary fixing device composed of the support rods 3 and the matching support components to fix each layer of the lower prefabricated plates.

[0051] S2. Lap the first ear plate 11 and the second ear plate 21 to achieve the lap of the upper prefabricated plate 1 and the lower prefabricated plate 2, and ensure that the ear plates protruding from the upper and lower layers can be aligned to facilitate the smooth hoisting of the next layer. Position and fix using the protruding part of the support rod 3, that is, the support rod 3 penetrates through the lower prefabricated plates 2 of the upper and lower adjacent layers, and assemble layer by layer upwards until the design height is reached.

[0052] S2. Carry out necessary sealing and reinforcement treatments, remove the support rods 3 and the support components, and prepare for the steel bar binding and concrete pouring of the sump part.

[0053] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An assembled foundation pit water collection well prefabricated formwork structure, characterized in that: comprising at least one set of formwork units; The formwork unit comprises: Two upper prefabricated plates (1) are arranged opposite to each other; first ear plates (11) are arranged on both sides of the upper prefabricated plates (1); Two lower prefabricated plates (2) are arranged opposite to each other; second ear plates (21) are arranged on both sides of the lower prefabricated plate (2); the first ear plates (11) and the second ear plates (21) are overlapped in an alternating manner up and down; A support rod (3) vertically arranged on the side of the lower prefabricated plate (2); And, a supporting component abutting between two oppositely arranged supporting rods (3).

2. The prefabricated formwork structure for the assembled foundation pit water collection well according to claim 1 is characterized in that: The upper prefabricated plate (1) and the lower prefabricated plate (2) have the same thickness, the length of the first ear plate (11) is the same as the thickness of the upper prefabricated plate (1), and the length of the second ear plate (21) is the same as the thickness of the lower prefabricated plate (2).

3. The prefabricated formwork structure for the assembled foundation pit water collection well according to claim 2 is characterized in that: The upper prefabricated plate (1) and the lower prefabricated plate (2) have the same height; The first ear plate (11) is located at the upper half of the upper prefabricated plate (1), and the height of the first ear plate (11) is half the height of the upper prefabricated plate (1); The second ear plate (21) is located at the lower half of the lower prefabricated plate (2), and the height of the second ear plate (21) is half the height of the lower prefabricated plate (2).

4. The prefabricated formwork structure for the assembled foundation pit water collection well according to claim 1 is characterized in that: The support rod (3) abuts against the inner side surface of the lower prefabricated plate (2).

5. The prefabricated formwork structure for the assembled foundation pit water collection well according to claim 1 is characterized in that: The supporting component comprises a pair of supporting rods (4) and an adjustable top support (5) adjustably connected to both ends of the pair of supporting rods (4), and the adjustable top support (5) abuts against the supporting rod (3).

6. The prefabricated formwork structure for the assembled foundation pit water collection well according to claim 5 is characterized in that: The pair of support rods (4) are hollow circular tubes.

7. The prefabricated formwork structure for the assembled foundation pit water collection well according to claim 6 is characterized in that: The adjustable top support (5) comprises a grooved support plate (51), a screw rod (52) and an adjustable nut (53); the groove body of the grooved support plate (51) is used to accommodate the support rod (3); one end of the screw rod (52) is fixed to the grooved support plate (51), and the adjustable nut (53) is threadedly connected to the screw rod (52).

8. The prefabricated formwork structure for the assembled foundation pit water collection well according to claim 3 is characterized in that: The lower end surface of the upper prefabricated plate (1) is provided with a first notch (12); and the upper end surface of the upper prefabricated plate (1) is provided with a first hanging ring (13).

9. The prefabricated formwork structure for the assembled foundation pit water collection well according to claim 8 is characterized in that: The lower end surface of the lower prefabricated plate (2) is provided with a second notch (22); and the upper end surface of the lower prefabricated plate (2) is provided with a second hanging ring (23).

10. The prefabricated formwork structure for the assembled foundation pit water collection well according to claim 9, characterized in that: The number and position of the first notch (12) and the first lifting ring (13) are matched; the number and position of the second notch (22) and the second lifting ring (23) are matched.

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