A trench-crossing equipment foundation mounting structure

Abstract

The utility model discloses a kind of across pipe trench equipment foundation installation structures, comprising: load-bearing steel plate, multiple anchor bolts, fixing piece, primary grouting layer and secondary grouting layer, the load-bearing steel plate is installed on foundation and is across arranged above pipe trench, several bolt through-holes and several fixed holes are set on the load-bearing steel plate;The anchor bolt is passed in the bolt through-hole and is fixed on the load-bearing steel plate, the upper end of the anchor bolt is passed out of the load-bearing steel plate and is formed in its outside protruding section, and the protruding section is suitable for connecting equipment base;The fixing piece is passed in the fixed hole and is fixedly connected in foundation;The primary grouting layer is between the load-bearing steel plate bottom surface and foundation;The secondary grouting layer is between equipment base and the load-bearing steel plate top surface.The utility model can directly complete the installation of equipment foundation above existing pipe trench, shorten construction period, reduce construction cost.

Description

Technical Field

[0001] This utility model relates to a foundation installation structure for equipment spanning pipe trenches. Background Technology

[0002] In industrial production workshops, underground pipe trenches are important infrastructure used for laying various pipelines and are widely distributed beneath the factory grounds. As production processes are updated and upgraded, companies often need to add new production lines or make technical modifications to existing equipment within their existing factory buildings.

[0003] After searching the existing technology, Chinese patent CN211849568U was found to disclose a mounting structure for a large precision equipment pad, including pre-drilled holes, anchor bolts, inclined pad assemblies, flat pad assemblies, a primary grouting layer, a secondary grouting layer, and an equipment base plate. Precise installation of the equipment is achieved by setting the pad assemblies and grouting layer within the pre-drilled holes. This technical solution is suitable for conventional foundation environments with pre-drilled holes. However, when the equipment installation location conflicts with existing underground pipe trenches, this solution cannot be directly applied because pre-drilled holes cannot be formed above the pipe trenches, and the trenches lack load-bearing capacity.

[0004] Currently, when the location of a new equipment foundation overlaps with an existing underground utility trench, there are two main conventional solutions: one is to adjust the equipment installation location to avoid the trench area; the other is to reroute the utility trench to make room for the equipment foundation. However, both solutions have significant drawbacks: adjusting the equipment location may lead to an unreasonable process layout, affecting production efficiency; rerouting the utility trench requires breaking down the existing structure and re-excavating and laying new sections, which is not only time-consuming and costly, but may also affect the normal operation of existing pipelines. Therefore, how to achieve rapid and economical installation of equipment foundations without damaging existing utility trenches or adjusting the equipment location is a pressing technical problem that needs to be solved in the field of industrial equipment installation. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a cross-pipe trench equipment foundation installation structure, which can directly complete the installation of equipment foundation above the pipe trench, shorten the construction cycle and reduce construction costs.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a foundation installation structure for equipment across pipe trenches, comprising:

[0007] A load-bearing steel plate is installed on the foundation and spans over the pipe trench. The load-bearing steel plate has several bolt through holes and several fixing holes.

[0008] Multiple anchor bolts are inserted into bolt through holes and fixed to the load-bearing steel plate. The upper end of each anchor bolt protrudes from the load-bearing steel plate and forms a protruding section thereout, which is suitable for connecting to the equipment base.

[0009] A fastener, which passes through the fixing hole and is fixedly connected to the foundation;

[0010] A primary grouting layer is located between the bottom surface of the load-bearing steel plate and the foundation;

[0011] A secondary grouting layer is located between the equipment base and the top surface of the load-bearing steel plate.

[0012] Furthermore, a specific material for the load-bearing steel plate is provided, wherein the material of the load-bearing steel plate is Q235B.

[0013] Furthermore, a specific thickness of the load-bearing steel plate is provided, wherein the thickness of the load-bearing steel plate is 20mm to 50mm.

[0014] Furthermore, a specific type of fastener is provided, wherein the fastener is a chemical anchor.

[0015] Furthermore, the lower end of the anchor bolt is provided with a lower nut, and the upper end of the anchor bolt is also provided with an upper nut. The lower nut and the upper nut are respectively located on both sides of the load-bearing steel plate and are locked onto the anchor bolt.

[0016] Furthermore, a leveling shim is provided between the bottom surface of the load-bearing steel plate and the foundation, and the leveling shim is located within the primary grouting layer.

[0017] Furthermore, the foundation installation structure for the cross-pipe trench equipment also includes a support column, which is fixed to the bottom of the pipe trench, and the upper end of the support column passes through a load-bearing steel plate.

[0018] By adopting the above technical solution, this utility model has the following beneficial effects:

[0019] In this utility model, firstly, the size and thickness of the load-bearing steel plate are determined according to the equipment load, trench width, and equipment installation location. The load-bearing steel plate is laid on the foundation and spans over the trench. The elevation of the top surface of the load-bearing steel plate is adjusted to the design elevation required for equipment installation using a level. Then, several bolt through holes are made on the load-bearing steel plate according to the bolt hole positions of the equipment base, and several fixing holes are made according to the foundation fixing requirements. Anchor bolts are inserted into the bolt through holes, and a nut is installed at the lower end of the anchor bolt and locked to the bottom surface of the load-bearing steel plate. The upper end of the anchor bolt extends out of the load-bearing steel plate to form an extended section. At the same time, fasteners are inserted into the fixing holes and fixedly connected to the foundation. After the positioning and fixing of the load-bearing steel plate is completed, the bottom surface of the load-bearing steel plate is... A first grouting layer is filled between the equipment base and the foundation. Then, the equipment base is installed on the protruding section of the anchor bolts. Finally, a second grouting layer is filled between the equipment base and the top surface of the load-bearing steel plate. This allows the equipment load to be transferred to the load-bearing steel plate through the anchor bolts, and then from the load-bearing steel plate to the foundation. At the same time, the fasteners reliably connect the load-bearing steel plate to the foundation. The first grouting layer fills the gap between the steel plate and the foundation and increases the contact area. The second grouting layer solidifies the equipment base and the surface of the steel plate into a whole. This allows the installation of the equipment foundation without damaging the pipe trench. It solves the problem of needing to adjust the equipment position or reroute the pipe trench when the equipment foundation position conflicts with the existing pipe trench, and achieves the effect of directly installing the equipment foundation above the pipe trench.

[0020] The load-bearing steel plates are made of Q235B material with a thickness of 20mm to 50mm, ensuring sufficient strength and rigidity to withstand equipment loads. Chemical anchors are used for fastening, achieving a secure connection between the load-bearing steel plates and the foundation. Anchor bolts have a lower nut at the bottom and an upper nut at the top, located on opposite sides of the load-bearing steel plate and locked to the anchor bolts, preventing loosening. Leveling shims are installed between the bottom of the load-bearing steel plate and the foundation, located within the primary grouting layer, facilitating adjustment of the steel plate elevation and ensuring even stress distribution. Support columns are fixed to the bottom of the trench, with their upper ends passing through the load-bearing steel plate, providing intermediate support and reducing the span and deformation of the steel plate.

[0021] In summary, this utility model uses a load-bearing steel plate spanning above the pipe trench, along with anchor bolts, fasteners, and a grouting layer to form a complete load-bearing system. This allows for the installation of equipment foundations without excavating the ground or damaging existing pipe trenches, shortening the construction period, reducing construction costs, and providing a trenchless structure for equipment installation in industrial plants. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the foundation installation structure for the cross-pipe trench equipment of this utility model. Figure 1 ;

[0023] Figure 2This is a schematic diagram of the foundation installation structure for the cross-pipe trench equipment of this utility model. Figure 2 . Detailed Implementation

[0024] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0025] like Figure 1-2 As shown, a foundation installation structure for equipment across a pipe trench includes:

[0026] A load-bearing steel plate 1 is installed on the foundation and spans over the pipe trench. The load-bearing steel plate 1 has several bolt through holes 2 and several fixing holes 3.

[0027] Multiple anchor bolts 4 are inserted into bolt through holes 2 and fixed to the load-bearing steel plate 1. The upper end of the anchor bolt 4 extends out of the load-bearing steel plate 1 and forms a protruding section outside it. The protruding section is suitable for connecting the equipment base.

[0028] Fixing element 6 is inserted through fixing hole 3 and fixedly connected to the foundation;

[0029] The primary grouting layer 7 is located between the bottom surface of the load-bearing steel plate 1 and the foundation.

[0030] Secondary grouting layer 8 is located between the equipment base and the top surface of the load-bearing steel plate 1.

[0031] In this embodiment, as Figure 1-2As shown, firstly, the dimensions and thickness of the load-bearing steel plate 1 are determined based on the equipment load, trench width, and equipment installation location. The load-bearing steel plate 1 is laid on the foundation and spans over the trench. The top surface elevation of the load-bearing steel plate 1 is adjusted to the design elevation required for equipment installation using a level. Then, several bolt through holes 2 are drilled on the load-bearing steel plate 1 according to the bolt hole positions of the equipment base. Several fixing holes 3 are drilled according to the foundation fixing requirements. Anchor bolts 4 are inserted into the bolt through holes 2. A lower nut 5 is installed at the lower end of the anchor bolt 4 and locked to the bottom surface of the load-bearing steel plate 1. The upper end of the anchor bolt 4 extends out of the load-bearing steel plate 1 to form an extended section. Simultaneously, a fixing member 6 is inserted into the fixing hole 3 and fixedly connected to the foundation. After completing the positioning and fixing of the load-bearing steel plate 1, the bottom of the load-bearing steel plate 1... A primary grouting layer 7 is filled between the equipment base and the foundation. Then, the equipment base is installed on the protruding section of the anchor bolts 4. Finally, a secondary grouting layer 8 is filled between the equipment base and the top surface of the load-bearing steel plate 1. This allows the equipment load to be transferred to the load-bearing steel plate 1 via the anchor bolts 4, and then from the load-bearing steel plate 1 to the foundation. Simultaneously, the fasteners 6 reliably connect the load-bearing steel plate 1 to the foundation. The primary grouting layer 7 fills the gap between the steel plate and the foundation and enhances the contact area. The secondary grouting layer 8 solidifies the equipment base and the steel plate surface into a unified whole. This allows for the installation of the equipment foundation without damaging the pipe trench, solving the problem of needing to adjust the equipment position or reroute the pipe trench when the equipment foundation location conflicts with the existing pipe trench. It achieves the effect of directly installing the equipment foundation above the pipe trench. In this embodiment, the bolt through holes 2 correspond to the holes on the equipment base, and the center deviation of the hole positions must not exceed ±1mm.

[0032] Specifically, such as Figure 1 As shown, the material of the load-bearing steel plate 1 is Q235B.

[0033] Specifically, such as Figure 1 As shown, the thickness of the load-bearing steel plate 1 is 20mm to 50mm.

[0034] In other embodiments, the load-bearing steel plate 1 may also be made of Q345B or higher strength grade steel.

[0035] Specifically, fastener 6 is a chemical anchor.

[0036] In this embodiment, as Figure 1-2 As shown, the fixing element 6 is a chemical anchor. The chemical anchor is formed by injecting chemical adhesive into a hole drilled in the foundation. After the adhesive cures, the fixing element 6 forms an anchoring connection with the foundation, allowing the load-bearing steel plate 1 to be fixedly connected to the foundation through the fixing hole 3, preventing horizontal displacement or overturning of the load-bearing steel plate 1 under equipment load. In other embodiments, the fixing element 6 can also be a welded connection structure, achieving a fixed connection by welding the load-bearing steel plate 1 to a pre-embedded steel component in the foundation.

[0037] Specifically, such as Figure 1-2As shown, the lower end of the anchor bolt 4 is provided with a lower nut 5, and the upper end of the anchor bolt 4 is also provided with an upper nut 9. The lower nut 5 and the upper nut 9 are located on both sides of the load-bearing steel plate 1 and are locked onto the anchor bolt 4.

[0038] In this embodiment, as Figure 1-2 As shown, the lower end of the anchor bolt 4 is provided with a lower nut 5, and the upper end of the anchor bolt 4 is also provided with an upper nut 9. The lower nut 5 and the upper nut 9 are located on both sides of the load-bearing steel plate 1 and are locked onto the anchor bolt 4. The anchor bolt 4 is clamped onto the load-bearing steel plate 1 by the double nut locking method of the lower nut 5 and the upper nut 9, which prevents the anchor bolt 4 from loosening under the vibration or load change generated by the operation of the equipment and maintains the fixed state between the anchor bolt 4 and the load-bearing steel plate 1.

[0039] Specifically, a leveling shim (not shown in the figure) is provided between the bottom surface of the load-bearing steel plate 1 and the foundation, and the leveling shim is located within the primary grouting layer 7.

[0040] Specifically, the foundation installation structure for the cross-pipe trench equipment also includes a support column (not shown in the figure), which is fixed at the bottom of the pipe trench and has its upper end passing through the load-bearing steel plate 1.

[0041] In this embodiment, as Figure 1-2 As shown, a leveling shim is provided between the bottom surface of the load-bearing steel plate 1 and the foundation. The leveling shim is located within the primary grouting layer 7. The leveling shim is used to adjust the elevation of the load-bearing steel plate 1 so that the top surface of the load-bearing steel plate 1 reaches the design elevation required for equipment installation. At the same time, the leveling shims are arranged at intervals on the bottom surface of the load-bearing steel plate 1 so that when the load-bearing steel plate 1 is under stress, the load is transferred to the foundation through the leveling shims, thus avoiding any unsupported areas on the bottom surface of the load-bearing steel plate 1.

[0042] Hoist the equipment above the load-bearing steel plate 1, align the holes in the equipment base with the anchor bolts 4, and then slowly lower it. Use a precision level to finely level the equipment, adjusting the thin shims under the equipment base to ensure the equipment's levelness meets design requirements (typically ≤0.5‰).

[0043] The foundation installation structure for the equipment across the pipe trench also includes supporting columns. These columns are fixed to the bottom of the pipe trench, with their upper ends passing through the load-bearing steel plate 1. The supporting columns provide an intermediate support point for the load-bearing steel plate 1, reducing the span of the load-bearing steel plate 1, decreasing its bending moment and deflection under load, and enhancing its load-bearing capacity. In some embodiments, the number of supporting columns is not limited to one and can be set according to the width of the pipe trench and the size of the equipment load.

[0044] In addition, the grouting gap reserved between the equipment base and the load-bearing steel plate 1 in this embodiment is 30-50mm. The grouting material is a high-strength non-shrink grouting material, such as CGM or RG series. It is injected from one side until the grout overflows evenly from the other side to ensure that the filling is dense and without gaps.

[0045] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A foundation installation structure for equipment across a pipe trench, characterized in that, include: A load-bearing steel plate (1) is installed on the foundation and spans over the pipe trench. The load-bearing steel plate (1) has several bolt through holes (2) and several fixing holes (3). Multiple anchor bolts (4) are inserted into the bolt through hole (2) and fixed to the load-bearing steel plate (1). The upper end of the anchor bolt (4) extends out of the load-bearing steel plate (1) and forms a protruding section outside it. The protruding section is suitable for connecting the equipment base. The fastener (6) is inserted through the fixing hole (3) and fixedly connected to the foundation; A primary grouting layer (7) is located between the bottom surface of the load-bearing steel plate (1) and the foundation; Secondary grouting layer (8) is located between the equipment base and the top surface of the load-bearing steel plate (1).

2. The foundation installation structure for cross-pipe trench equipment according to claim 1, characterized in that: The load-bearing steel plate (1) is made of Q235B.

3. The foundation installation structure for cross-pipe trench equipment according to claim 1, characterized in that: The thickness of the load-bearing steel plate (1) is 20mm to 50mm.

4. The foundation installation structure for cross-pipe trench equipment according to claim 1, characterized in that: The fastener (6) is a chemical anchor.

5. The foundation installation structure for cross-pipe trench equipment according to claim 1, characterized in that: The lower end of the anchor bolt (4) is provided with a lower nut (5), and the upper end of the anchor bolt (4) is also provided with an upper nut (9). The lower nut (5) and the upper nut (9) are located on both sides of the load-bearing steel plate (1) and are locked to the anchor bolt (4) respectively.

6. The foundation installation structure for cross-pipe trench equipment according to claim 1, characterized in that: A leveling pad is provided between the bottom surface of the load-bearing steel plate (1) and the foundation, and the leveling pad is located within the primary grouting layer (7).

7. The foundation installation structure for cross-pipe trench equipment according to claim 1, characterized in that: It also includes a support column, which is fixed to the bottom of the trench, and the upper end of the support column passes through the load-bearing steel plate (1).

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