A column-pile integrated comprehensive pipeline support special for a power plant

Abstract

The application provides a pile-column integrated comprehensive pipeline support special for a power plant, and is characterized in that the pipeline support comprises a pile-column integrated replacement pile column, a stringer, a connecting piece and a cross beam, wherein the pile column is partially embedded in the ground and partially exposed on the ground, the on-ground part of the pile column is provided with the connecting piece, the cross beam is integrally cast with the pile column, and the stringer is connected with the pile column through the connecting piece. Compared with the prior art, the application can shorten the construction period, save a large number of processes such as binding steel bars, supporting a formwork, pouring concrete and curing in the construction foundation process of the traditional scheme, and save 15% to 35% of the construction time. In addition, the application has the advantages of small occupied area, convenient arrangement and cost saving.

Description

Technical Field

[0001] This invention relates to integrated pipeline supports for power plants, specifically to an integrated pipeline support structure combining columns and piles specifically designed for power plants. Background Technology

[0002] Existing large and medium-sized power plants have numerous and complex pipelines, and integrated pipeline supports, as their carriers, need to ensure the long-term stable operation of pipelines, cable trays, and other components. This invention aims to provide a novel structural form for integrated pipeline supports in power plants, along with two different manufacturing methods. While ensuring structural safety and reliability, this approach can shorten the construction period, reduce project construction costs, decrease the area of ​​land used, mitigate environmental pollution, and lower carbon emissions.

[0003] Currently, for power plant sites with deep bearing strata, integrated pipeline supports all adopt a structural form of "superstructure (columns, beams, connectors, longitudinal beams) + foundation (pile cap, foundation connecting beams) + piles." This means that the superstructure, foundation, and piles are reliably connected to form a force transmission system, transferring the load from the upper structure to the bearing stratum. See the attached diagram in the instruction manual for details. Figure 1 and Figure 2 For power plant sites with deep bearing strata, the traditional integrated pipeline support system consisting of "superstructure + foundation + piles" has the following disadvantages:

[0004] (1) Long construction period. In the traditional process of constructing integrated pipeline supports, the first step is to install piles, that is, to insert precast piles or cast-in-place piles into the bearing layer to a certain depth. If cast-in-place piles are used, they need to be cured for 28 days after pouring. After the pile installation and testing are completed, earthwork needs to be excavated and backfilled, steel bars need to be tied, formwork needs to be erected, concrete foundation, pile cap and foundation connecting beams need to be poured, etc., and the concrete needs to be cured for 28 days after pouring. After the foundation is cured, the construction of columns and beams needs to continue, that is, steel bars need to be tied, formwork needs to be erected, concrete needs to be poured, and then another 28 days of curing is required. Therefore, the traditional method has a long construction period. In addition, the power plant has a lot of pipelines, which makes the length of the integrated pipeline support reach hundreds of meters or even thousands of meters. Therefore, the construction period is at least 4 to 5 months.

[0005] (2) High cost. Traditional integrated pipeline support consists of three parts: superstructure, foundation and piles. During the manufacturing process, a large amount of steel bars and concrete are required, which makes the construction cost high. Furthermore, due to the long construction time, indirect costs such as equipment rental and labor costs are also significantly increased.

[0006] (3) Large footprint and complex layout. Traditional integrated pipeline supports require the casting of foundation caps. For single-pile and two-pile foundation caps, foundation connecting beams are needed to connect multiple foundation caps together (see appendix for details). Figure 2To withstand bending moments and transmit horizontal forces, the foundation occupies a significant amount of space. Furthermore, since the construction of integrated pipeline supports often occurs in the later stages of factory construction, by which time surrounding buildings have already been completed, the foundation layout must avoid existing building foundations. Additionally, the numerous roads within the factory area necessitate that the foundations also avoid these roads. These unfavorable factors all constrain the placement of integrated pipeline supports.

[0007] Therefore, there is an urgent need for a pipe support structure that can shorten the construction period, reduce costs, reduce the plant area, and make the layout more convenient. Summary of the Invention

[0008] The purpose of this invention is to provide a pipe support structure that can shorten the construction period, reduce costs, reduce the plant area, and make the layout more convenient.

[0009] The first aspect of this invention discloses an integrated column-pile pipeline support, the pipeline support comprising: a column, longitudinal beams, connectors, and transverse beams, wherein:

[0010] The pile is partially embedded underground and fixed, and partially exposed above ground. The part above ground is equipped with connectors. The crossbeam is cast together with the pile, and the longitudinal beam is connected to the pile through the connectors.

[0011] In a preferred embodiment, the cross-sectional shape of the pile includes: square, circular, square tubular, and round tubular.

[0012] In a preferred embodiment, the piles, crossbeams, and connectors are reinforced concrete structures, and the longitudinal beams are steel structures.

[0013] In a preferred embodiment, the connector includes a bracket and a lug, and a steel plate is embedded in the top surface of the connector.

[0014] In a preferred embodiment, the pile is a segmented structure.

[0015] In a preferred embodiment, the connection methods between the various segments of the pile include: core grouting, welding, and mechanical connection.

[0016] In a preferred embodiment, the above-ground and underground portions are reinforced with steel bars, and both the above-ground and underground portions are formed by concrete pouring.

[0017] In a preferred embodiment, the crossbeam and the pile are integrally formed by casting.

[0018] In a preferred embodiment, the number of connectors is not less than two.

[0019] In a preferred embodiment, the tube rack is configured as a multi-layer structure, with the number of layers being 1 to 4.

[0020] The second aspect of the present invention discloses a method for constructing the above-mentioned pipe support, the method comprising: the pipe support is prefabricated in a factory, the pile column is divided into multiple sections for easy transportation according to the design scheme and prefabricated separately, and then when transported to the construction site, the pile column is connected into a whole by a specific connection method; the connection method includes core grouting, welding and mechanical connection; the number of sections into which the pile column is divided is not less than 2.

[0021] In a preferred embodiment, the method includes: constructing using a cast-in-place method; the cast-in-place method first pours the portion below ground level, and then pours the portion above ground level, wherein the portion below ground level is formed by rotary drilling, and after reaching the design depth and cleaning the hole, reinforcing bars are placed and then concrete is poured; the portion above ground level is constructed by binding reinforcing bars, erecting formwork, and pouring concrete.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) Shorten the construction period. The integrated pipeline support scheme proposed in this invention eliminates a large number of procedures in the traditional construction process, such as tying steel bars, setting up formwork, pouring concrete and curing, which significantly shortens the construction period and can save 15% to 35% of the construction time.

[0024] (2) Small footprint and easy to arrange. The integrated pipeline support scheme proposed in this invention occupies less land area in the plant area and does not have the problem of the pipe rack foundation colliding with the foundations of other buildings or roads as in traditional schemes, making the arrangement convenient.

[0025] (3) Cost savings. The integrated pipeline support scheme proposed in this invention can save on the amount of excavation and filling work, concrete work, and corresponding material costs such as steel bars and formwork, as well as labor costs; by shortening the construction period, it can reduce indirect costs such as management costs and equipment rental costs.

[0026] The specification of this application contains numerous technical features distributed across various technical solutions. Listing all possible combinations of these technical features (i.e., technical solutions) would make the specification excessively lengthy. To avoid this problem, the various technical features disclosed in the above-described invention, the various technical features disclosed in the following embodiments and examples, and the various technical features disclosed in the accompanying drawings can be freely combined to form various new technical solutions (all of which should be considered as described in this specification), unless such a combination of technical features is technically infeasible. For example, one example discloses feature A+B+C, and another example discloses feature A+B+D+E. Features C and D are equivalent technical means that serve the same function, and technically only one needs to be used; they cannot be used simultaneously. Feature E can technically be combined with feature C. Therefore, the solution A+B+C+D should not be considered as described because it is technically infeasible, while the solution A+B+C+E should be considered as described. Attached Figure Description

[0027] Figure 1 This is a horizontal elevation view of a composite pipe support in the prior art;

[0028] Figure 2 This is a longitudinal elevation view of a composite pipe support system in the prior art;

[0029] Figure 3 This is a transverse elevation view of the integrated pile-column pipeline support described in this invention;

[0030] Figure 4 This is a longitudinal elevation view of the integrated pile-column pipeline support described in this invention;

[0031] Figure 5 This is a schematic diagram of the overall structure of the integrated pile-column pipeline support described in this invention;

[0032] Figure label:

[0033] 1-Pile column; 2-Cross beam; 3-Connector; 4-Longitudinal beam. Detailed Implementation

[0034] Through in-depth research and extensive screening, the inventors have developed a comprehensive pipe support system integrating piles and columns specifically for power plants. This invention primarily utilizes the fact that the upper part of the pipe support houses lighter facilities such as pipes and cable trays, resulting in a significantly lower load on the upper structure compared to other buildings and structures. Therefore, even using the integrated pile and column pipe support system described in this invention fully meets the requirements. Compared to existing technologies, the eliminated structure and construction method of this application not only shortens the construction cycle and eliminates numerous procedures in the traditional foundation construction process, such as reinforcing steel binding, formwork erection, concrete pouring, and curing, but also saves 15% to 35% of construction time. Furthermore, it has the advantages of requiring less floor space, convenient layout, and cost savings.

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0036] The integrated pile-column pipeline support described in this invention is as follows: Figure 3 and Figure 4 As shown, the pipe support is characterized by comprising: a pile 1, a crossbeam 2, a connector 3, and a longitudinal beam 4, wherein:

[0037] The pile 1 is partially embedded in the ground and partially exposed above ground. The part above ground is equipped with a connector 3. The crossbeam 2 is cast and connected to the pile 1. The longitudinal beam 4 is connected to the pile 1 through the connector 3.

[0038] Optionally, in one embodiment, the connector is a bracket or a lug, a steel plate is pre-embedded on the top surface of the connector, and the number of connectors 3 is not less than 2.

[0039] Optionally, in one embodiment, the cross-sectional shape of the pile includes: square, circular, square tube, and round tube.

[0040] Optionally, in one embodiment, the tube rack is configured as a multi-layer structure, as shown in this embodiment. Figure 3-5 As shown, there are 2 layers. In actual implementation, the number of layers can be 1 to 4.

[0041] Specifically, the structure of the complete pipe support described in this invention is as follows: Figure 5 As shown, it is equipped with piles 1, crossbeams 2, connectors 3, and longitudinal beams 4 that connect the piles.

[0042] Example 1

[0043] In this embodiment, the pile 1 is configured as a segmented structure, and the connection methods between its segments include: core filling, welding and mechanical connection.

[0044] This embodiment also discloses a construction method for a pipe support configured with the above-mentioned segmented piles. Specifically, the pipe support is prefabricated in a factory. The pile 1 can be divided into multiple segments for easy transportation according to the design scheme. Multiple segments of the pile 1, as well as connectors 3 and crossbeams 2, are prefabricated and then transported to the construction site. First, the first segment of the pile 1 is driven into the ground to a certain depth by static pressure. Then, the segments of the pile with crossbeams 2 and connectors 3 are connected into a whole by a specific connection method. Finally, the longitudinal beams 4 are welded to complete the construction of the integrated pipe support.

[0045] Optionally, in one embodiment, the pipe support is divided into at least two segments.

[0046] Example 2

[0047] In this embodiment, the pile 1 is formed by concrete pouring and has steel reinforcement inside.

[0048] This embodiment also discloses a method for constructing the above-mentioned pipe support, the method comprising: constructing using the in-situ casting method; the in-situ casting method first casts the part below ground level, and then casts the part above ground level, wherein the part below ground level is formed by rotary drilling, and after reaching the design depth and cleaning the hole, reinforcing bars are placed and then concrete is poured; the part above ground level is constructed by binding reinforcing bars, supporting formwork, and pouring concrete to make the pile column 1, connector 3, and crossbeam 2, and after the construction is completed, the longitudinal beam 4 is welded to complete the construction of the pipe support.

Claims

1. A column-pile integrated pipeline support, characterized in that, The pipe support includes: piles, longitudinal beams, connectors, and crossbeams, wherein: The pile is partially embedded underground and fixed, and partially exposed above ground. The part above ground is equipped with connectors. The crossbeam is cast together with the pile, and the longitudinal beam is connected to the pile through the connectors.

2. The integrated pipeline support system with column and pile components according to claim 1, characterized in that, The cross-sectional shapes of the piles include: square, circular, square tube, and round tube.

3. The integrated column-pile pipeline support according to claim 1, characterized in that, The piles, crossbeams, and connectors are reinforced concrete structures, while the longitudinal beams are steel structures.

4. The integrated pipeline support system with column and pile components according to claim 1, characterized in that, The connector includes a bracket and a lug, and a steel plate is embedded in the top surface of the connector.

5. The integrated column-pile pipeline support according to claim 1, characterized in that, The piles are segmented structures.

6. The integrated column-pile pipeline support according to claim 5, characterized in that, The connection methods between the various sections of the pile include: core grouting, welding, and mechanical connection.

7. The integrated pipeline support system with column and pile components according to claim 1, characterized in that, The pipe rack is configured as a multi-layer structure with 1 to 4 layers.

8. The integrated pipeline support system with column and pile components according to claim 7, characterized in that, The pile has steel reinforcement inside both the above-ground and underground parts, and both the above-ground and underground parts are made of concrete.

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