Fabricated independent foundation

Abstract

The utility model relates to an assembled independent foundation, the independent foundation includes short column and a plurality of groove type foundation blocks, and short column and groove type foundation block are all prefabricated components, a plurality of groove type foundation blocks are spliced into assembled foundation layer, and the bottom of short column is equipped with the connecting fin board, and the connecting fin board is inserted into assembled foundation layer and is fixedly connected with at least partial groove type foundation blocks, and the slot of at least partial groove type foundation blocks is upwards and in the cavity of these groove type foundation blocks and has cast-in-place filled with concrete filling block, in the utility model, a plurality of groove type foundation blocks are spliced into assembled foundation layer, and the connection of short column and foundation layer is realized through the connecting fin board, and it is convenient to construct, and it is convenient to assemble construction, the weight of groove type foundation block is lighter, and it is easy to hoist and on -the -spot position adjustment operation, through the prefabricated component of limited kind, through different combination, can adapt to multiple application environment, and the on -the -spot installation efficiency is high, and the construction period of on -the -spot is greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, specifically relating to a prefabricated independent foundation. Background Technology

[0002] The main transformer, or main transformer, is the core component of a substation. The main transformer foundation is the structure used to install the main transformer equipment, generally including a foundation layer and supports (short columns) erected on the foundation layer to support the equipment above. Traditionally, main transformer foundations are cast-in-place concrete foundations, requiring on-site formwork, reinforcement binding, pouring, and curing, resulting in a long construction period and high labor intensity for workers. Currently, with the development of prefabricated construction technology, prefabricated construction techniques are gradually being adopted for main transformer foundations.

[0003] Existing prefabricated independent foundations are typically planned according to site drawings, with prefabricated foundation layer components and short column components prefabricated offline, then transported and hoisted to the site for installation. However, prefabricated foundation layer components suffer from problems such as large size and heavy weight, resulting in high transportation and on-site hoisting costs. Moreover, they can generally only assemble foundation layers of the target shape and specifications, with limited adjustability and variability, and a narrow range of applications. Utility Model Content

[0004] In view of the technical defects and drawbacks existing in the prior art, this utility model provides a prefabricated independent foundation to overcome or at least partially solve the above problems.

[0005] The prefabricated independent foundation includes short columns and multiple channel-shaped foundation blocks, all of which are prefabricated components.

[0006] Multiple groove-shaped base blocks are assembled into an assembly base layer. The bottom of the short column is provided with a connecting fin plate, which is inserted into the assembly base layer and fixedly connected to at least a portion of the groove-shaped base blocks.

[0007] At least some of the grooved foundation blocks have their grooves facing upwards, and concrete filler blocks are cast-in-place in the cavities of these grooved foundation blocks.

[0008] Preferably, a plurality of the groove-shaped base blocks are arranged in an array and gap grooves are formed between adjacent groove-shaped base blocks. There are multiple connecting fins and they are respectively inserted into each of the gap grooves. Each connecting fin is fixedly connected to two adjacent groove-shaped base blocks.

[0009] Preferably, the connecting fin plate and the corresponding grooved base block are bolted together.

[0010] Preferably, the width of the connecting fins gradually increases from top to bottom.

[0011] Preferably, a cast-in-place concrete layer is formed above the assembly base layer, and the cast-in-place concrete layer is integrally cast with the concrete filler block.

[0012] Preferably, the bottom surface of the short column abuts against the cast-in-place concrete layer.

[0013] Preferably, the bottom surface of the short column abuts against the grooved foundation block directly below, such that part of the short column is embedded in the cast-in-place concrete layer.

[0014] Preferably, at least part of the groove-shaped base block with the groove opening facing upwards has a pad layer channel hole on its bottom plate.

[0015] Preferably, the shape and specifications of each of the groove-shaped base blocks are consistent.

[0016] This utility model has the following beneficial effects:

[0017] In this invention, multiple trough-shaped foundation blocks are assembled into a prefabricated foundation layer, and the short columns are connected to the foundation layer through connecting fins, which makes construction convenient and facilitates prefabricated construction; the trough-shaped foundation blocks are lightweight, making them easy to hoist and adjust on-site;

[0018] By using a limited variety of prefabricated components and combining them in different ways, the system can adapt to various application environments, is flexible and convenient to adjust, and has high on-site installation efficiency, greatly reducing the on-site construction cycle. Attached Figure Description

[0019] Figure 1 A schematic diagram of the prefabricated independent foundation provided in an embodiment of this utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of its decomposed structure. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the present utility model, and not 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 creative effort are within the protection scope of the present utility model.

[0022] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a prefabricated independent foundation, including short columns 1 and multiple grooved foundation blocks 2, wherein the short columns 1 and the grooved foundation blocks 2 are all prefabricated components;

[0023] Multiple groove-shaped base blocks 2 are assembled into an assembly base layer. The bottom of the short column 1 is provided with a connecting fin plate 11. The connecting fin plate 11 is inserted into the assembly base layer and is fixedly connected to at least a portion of the groove-shaped base blocks 2.

[0024] At least some of the grooved foundation blocks 2 have their grooves facing upwards, and concrete filler blocks are cast-in-place in the cavities of these grooved foundation blocks 2.

[0025] like Figure 1 and Figure 2 The trough-shaped foundation block 2 includes a base plate and an annular side wall. The annular side wall is set on the base plate and surrounds to form the trough cavity of the trough-shaped foundation block 2. The opening at the end of the annular side wall away from the base plate constitutes the trough opening of the trough-shaped foundation block 2.

[0026] Optionally, the cross-section of the aforementioned annular sidewall is rectangular, that is, it is a square annular sidewall including the sidewalls of the four base blocks; in another embodiment, the cross-section of the aforementioned annular sidewall may also be a cylindrical ring or other irregular shape.

[0027] In one embodiment, such as Figure 1 and Figure 2 Multiple groove-shaped base blocks 2 are arranged in an array and gap grooves 20 are formed between adjacent groove-shaped base blocks 2. Multiple connecting fins 11 are provided and are inserted into each of the gap grooves 20. Each connecting fin 11 is fixedly connected to two adjacent groove-shaped base blocks 2. This structure can effectively ensure the installation reliability of the short column 1 and the bonding reliability between it and the base layer.

[0028] Optionally, such as Figure 1 and Figure 2 Directly below the short column 1 are four slotted base blocks 2 arranged in an array. Two column-oriented gap slots 20 and two row-oriented gap slots 20 are formed between the four slotted base blocks 2. Correspondingly, there are four connecting fin plates 11, which are respectively inserted into the four gap slots 20.

[0029] Preferably, the two surfaces of the connecting fin plate 11 are respectively attached to two adjacent groove-shaped foundation blocks 2 to further ensure the reliability of the connection between the short column 1 and the foundation layer.

[0030] Taking the groove-shaped foundation block 2 with a square ring sidewall as an example, such as Figure 1 and Figure 2 All four gap grooves 20 are rectangular grooves, and the connecting fin plate 11 is a flat plate accordingly. The thickness of the connecting fin plate 11 is the same as the width of the gap groove 20.

[0031] The four gap slots 20 are interconnected, and correspondingly, the four connecting fins 11 are intersected and connected, including but not limited to making the four connecting fins 11 integrally formed, which can further improve the connection integrity and cooperative force bearing of each slot-shaped base block 2 and short column 1.

[0032] For the connection between the connecting fin plate 11 and the channel-shaped base block 2, preferably, a bolt fixing connection is used, and correspondingly, such as Figure 1 and Figure 2 Bolt mounting holes 30 are provided on the annular sidewall of the trough-shaped foundation block 2, and bolt mounting holes 30 are also provided on the connecting wing plate 11 accordingly. When the connecting wing plate 11 is fixedly connected to two adjacent trough-shaped foundation blocks 2, the bolt passes through one of the trough-shaped foundation blocks 2, the connecting wing plate 11 and the other trough-shaped foundation block 2 in sequence, and is then tightened with a nut. This not only facilitates the bolt assembly operation, but also enables the two adjacent trough-shaped foundation blocks 2 to be connected as one unit and share the load, thereby further improving the application reliability of the prefabricated independent foundation.

[0033] The bolt mounting holes 30 on the connecting fin plate 11 are multiple, and the bolt mounting holes 30 on the annular side wall are designed to match each other, which can further ensure the reliability of the connection between the short column 1 and the foundation layer.

[0034] Based on the grooved structure of the grooved foundation block 2, especially the grooved foundation block 2 with the groove opening facing upwards, bolt installation and locking operations can be easily carried out, thereby improving construction efficiency and construction quality. The bolt assembly operation can be carried out after the grooved foundation block 2 and the short column 1 are hoisted into place. In this way, the hoisting construction of the grooved foundation block 2 and the short column 1 can be carried out independently, which can improve the convenience, safety and construction quality of construction.

[0035] Optionally, when long bolts are used and part of the stud extends into the concrete filling block, the integrity of the connection between the concrete filling block and the channel-shaped foundation block 2 can be improved accordingly, as well as the reliability of the connection between the connecting fin plate 11 and the channel-shaped foundation block 2. Therefore, the bolts can be double-ended studs, with both ends of the stud extending into the corresponding two channel-shaped foundation blocks 2 and being fixed by the corresponding concrete filling blocks.

[0036] Taking the intersection of the four gap slots 20 directly below the short column 1 as the slot intersection point, the slot-shaped foundation block 2 directly below the short column 1 is defined as the reference foundation block. Optionally, a buckle plate extends from the end of the connecting fin plate 11 away from the slot intersection point. The dihedral angle between the buckle plate and the connecting fin plate 11 is greater than 0° and less than or equal to 90°, and the buckle plate abuts against the side wall of the adjacent reference slot-shaped foundation block 2 away from the slot intersection point. This makes the foundation layer more effective in restraining the short column 1, ensuring the structural stability of the short column 1, and improving the anti-tilting and anti-swaying effects of the short column 1, thereby improving the application reliability of the independent foundation. Taking the reference foundation block with a square annular sidewall as an example, the connecting fin plate 11 and the buckle plate extending from one end abut against the side walls of the two adjacent foundation blocks of the same reference foundation block.

[0037] In one embodiment, a cast-in-place concrete layer is formed above the prefabricated foundation layer. The cast-in-place concrete layer is integrally cast with the concrete filling block. That is, when the cast-in-place concrete layer is constructed, the concrete fills the cavity of the groove-shaped foundation block 2. This not only facilitates construction, but more importantly, it allows each groove-shaped foundation block 2 to be better connected as a whole, ensuring that the foundation layer better supports the short column 1 and the equipment above, and improving the reliability of the prefabricated independent foundation.

[0038] In addition, understandably, during the construction of the cast-in-place concrete layer, the concrete also fills the gap grooves 20 between the groove-shaped foundation blocks 2.

[0039] Furthermore, the bottom surface of the short column 1 abuts against the cast-in-place concrete layer, ensuring the reliability of the foundation layer's support for the short column 1. In another embodiment, the bottom surface of the short column 1 abuts against the groove-shaped foundation block 2 directly below, so that the short column 1 is partially embedded in the cast-in-place concrete layer, that is, the cast-in-place concrete layer encloses part of the column body of the short column 1. This structure can further improve the structural reliability and load-bearing performance of the short column 1.

[0040] The cast-in-place concrete layer encloses each connecting fin 11, which improves the constraint effect of the foundation layer on the short column 1 and enhances the structural integrity between the short column 1 and the foundation layer. In particular, one or more ribs protrude from the connecting fin 11 and extend into the cast-in-place concrete layer, which further improves the structural integrity and cooperative load-bearing capacity between the short column 1 and the cast-in-place concrete layer. The load of the short column 1 can be reliably transferred to the cast-in-place concrete layer and each trough-shaped foundation block 2 through the connecting fin 11, thereby improving the reliability of the prefabricated independent foundation.

[0041] Optionally, such as Figure 1 and Figure 2The width of the connecting fin 11 gradually increases from top to bottom. In addition to its vertical height and thickness (matching the aforementioned gap groove 20), the connecting fin 11 also has a horizontal width. This design improves the constraint effect of the cast-in-place concrete layer on the connecting fin 11 and the short column 1, enhancing the short column 1's ability to prevent tilting and swaying.

[0042] Preferably, the slots of all the channel-shaped foundation blocks 2 face upwards; in another embodiment, a small number of the channel-shaped foundation blocks 2 may have their slots facing downwards, and concrete pouring channels may be opened on the bottom plate (at this time, the top of the channel-shaped foundation blocks 2) of these channel-shaped foundation blocks 2. These concrete pouring channels may also serve as channels for bolt assembly operations, and / or bolt assembly operation channels may be opened on the side walls of these channel-shaped foundation blocks 2. These bolt assembly operation channels may also serve as concrete pouring channels.

[0043] Preferably, at least part of the groove-shaped foundation block 2 with the groove opening facing upward is provided with a cushion layer channel hole on the bottom plate. When concrete is poured into the groove-shaped foundation block 2, the concrete also fills the gap between the groove-shaped foundation block 2 and the foundation below through the cushion layer channel hole, further improving the structural reliability of the prefabricated independent foundation.

[0044] In this embodiment, multiple groove-shaped foundation blocks 2 are assembled into a prefabricated foundation layer, and the short column 1 is connected to the foundation layer through connecting fin plates 11. This makes construction convenient and facilitates prefabricated construction. Through a limited number of prefabricated components, different combinations can be made to adapt to various application environments (such as main transformer foundations, independent foundations of multi-story buildings, etc.). The adjustment is flexible and convenient, and the on-site installation efficiency is high, which greatly reduces the on-site construction cycle.

[0045] Preferably, the shape and specifications of each of the groove-shaped base blocks 2 are consistent, which facilitates standardized prefabrication production.

[0046] This utility model embodiment also provides a construction method for the above-mentioned prefabricated independent foundation, including:

[0047] Prefabricate the short column 1 and each of the groove-shaped foundation blocks 2;

[0048] Multiple groove-shaped base blocks 2 are assembled into an assembly base layer, and the connecting fin plate 11 of the short column 1 is inserted into the assembly base layer and fixedly connected to the corresponding groove-shaped base block 2.

[0049] The cast-in-place concrete filler block.

[0050] The short column 1 can be installed after each of the grooved foundation blocks 2 is in place, or the grooved foundation blocks 2 and the short column 1 can be installed simultaneously.

[0051] Other construction steps for this prefabricated independent foundation, such as the construction of the cast-in-place concrete layer, have been described in the preceding content and will not be repeated here.

[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A prefabricated independent foundation, characterized in that, It includes short columns and multiple channel-shaped foundation blocks, wherein the short columns and the channel-shaped foundation blocks are all prefabricated components; Multiple groove-shaped base blocks are assembled into an assembly base layer. The bottom of the short column is provided with a connecting fin plate, which is inserted into the assembly base layer and fixedly connected to at least a portion of the groove-shaped base blocks. At least some of the grooved foundation blocks have their grooves facing upwards, and concrete filler blocks are cast-in-place in the cavities of these grooved foundation blocks.

2. The prefabricated independent foundation according to claim 1, characterized in that, Multiple slotted base blocks are arranged in an array and gaps are formed between adjacent slotted base blocks. Multiple connecting fins are inserted into each of the gaps, and each connecting fin is fixedly connected to two adjacent slotted base blocks.

3. The prefabricated independent foundation according to claim 1, characterized in that, The connecting fin plate is bolted to the corresponding grooved base block.

4. The prefabricated independent foundation according to claim 1, characterized in that, The width of the connecting fins gradually increases from top to bottom.

5. The prefabricated independent foundation according to any one of claims 1 to 4, characterized in that, A cast-in-place concrete layer is formed above the assembly base layer, and the cast-in-place concrete layer is integrally cast with the concrete filler block.

6. The prefabricated independent foundation according to claim 5, characterized in that, The bottom surface of the short column rests against the cast-in-place concrete layer.

7. The prefabricated independent foundation according to claim 5, characterized in that, The bottom surface of the short column rests against the groove-shaped foundation block directly below, so that part of the short column is embedded in the cast-in-place concrete layer.

8. The prefabricated independent foundation according to claim 1, characterized in that, At least some of the grooved foundation blocks with upward-facing slots have cushioning channel holes on their bottom plates.

9. The prefabricated independent foundation according to claim 1, characterized in that, The shape and specifications of each of the aforementioned groove-shaped foundation blocks are consistent.

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