A structure for arranging outdoor direct buried pipes in the gap of corridor foundation

Abstract

The utility model provides a structure in which an outdoor direct buried pipe is arranged in the gap of the corridor foundation, which enables the air-conditioning water supply and return pipes to be laid reliably and stably, ensuring the stable and reliable operation of the central air-conditioning. Structural columns are arranged on both sides of the width of the corridor, and a foundation pedestal is arranged at the bottom of the corridor, characterized in that it includes: a return pipe assembly, which includes a return pipe and a first insulation layer; a water supply pipe assembly, which includes a water supply pipe and a second insulation layer; a concrete cover plate; a yellow sand layer; and a backfill soil layer; two groups of structural columns arranged at intervals are arranged on the upper part of the foundation pedestal, and the two groups of structural columns and the upper surface of the foundation pedestal are combined to form a pipe placing space, the bottom layer of the pipe placing space is a yellow sand layer, and the return pipe assembly and the water supply pipe assembly are arranged in parallel in the middle of the thickness direction of the yellow sand layer, and the upper surface of the yellow sand layer is covered with the concrete cover plate, and the upper surface of the concrete cover plate is the backfill soil layer, and the backfill soil layer is compacted.

Description

Technical Field

[0001] The utility model relates to the technical field of building central air-conditioning reconstruction, in particular to a structure in which outdoor direct-buried pipes are arranged in the gap of a corridor foundation. Background Art

[0002] The central air-conditioning is rearranged in the building with corridors, which restricts the laying of air-conditioning supply and return pipes at the corridors. Due to the column spacing and foundation pedestal restrictions of the corridors, the existing outdoor direct buried insulation pipe trench excavation end faces and the local excavation width, burial depth and slope at the corridor columns cannot meet the requirements. Therefore, it is urgently necessary to set up a structure suitable for the installation of outdoor direct buried pipes according to the actual situation on site. Summary of the invention

[0003] In view of the above problems, the utility model provides a structure in which outdoor direct buried pipes are arranged in the gaps of corridor foundations, so that the air-conditioning supply and return water pipes can be laid reliably and stably, ensuring stable and reliable operation of the central air-conditioning.

[0004] A structure in which an outdoor direct buried pipe is arranged in the gap of a corridor foundation, structural columns are arranged on both sides of the width of the corridor, and a foundation pedestal is arranged at the bottom of the corridor, characterized in that it comprises:

[0005] A water return pipe assembly, comprising a water return pipe and a first insulation layer;

[0006] A water supply pipe assembly, comprising a water supply pipe and a second insulation layer;

[0007] Concrete cover slab;

[0008] yellow sand layer;

[0009] and backfill soil;

[0010] Two groups of structural columns arranged at intervals are provided on the upper part of the foundation pedestal, and the two groups of structural columns and the upper surface of the foundation pedestal are combined to form a pipe placing space, the bottom layer of the pipe placing space is a yellow sand layer, and the return pipe assembly and the water supply pipe assembly are arranged in parallel in the middle of the thickness direction of the yellow sand layer, and the upper surface of the yellow sand layer is covered with the concrete cover plate, and the upper surface of the concrete cover plate is the backfill soil layer, and the backfill soil layer is compacted.

[0011] It is further characterized by:

[0012] The overall outer diameters of the water return pipe assembly and the water supply pipe assembly are the same;

[0013] The distance between the bottom of the return pipe assembly and the upper surface of the foundation pedestal is equal to the distance between the upper part of the return pipe assembly and the lower surface of the concrete cover plate;

[0014] The lateral distance between the return pipe assembly and the water supply pipe assembly is greater than 100 mm, the spacing between the return pipe assembly and the structural column on the corresponding side is greater than 100 mm, and the spacing between the water supply pipe assembly and the structural column on the corresponding side is greater than 100 mm;

[0015] The yellow sand layer specifically contains yellow sand particles with a particle size of ≤8 mm.

[0016] After adopting the utility model, the surface layer in the corridor is excavated mechanically first and then manually, and then the distance between the direct-buried insulation pipe and the structural column and between the pipes is reduced laterally in the excavated section, and the bottom yellow sand layer is laid on the foundation pedestal, and then the return pipe assembly and the water supply pipe assembly are laid flat at intervals, and then covered with the upper yellow sand layer, and then a concrete cover plate is added on the upper part of the yellow sand layer, and the upper surface of the concrete cover plate is a backfill soil layer, and the backfill soil layer is compacted and set, and the slope is cancelled at the structural column to complete the laying of the direct-buried pipe; it enables the air-conditioning supply and return water pipes to be laid reliably and stably, ensuring the stable and reliable operation of the central air-conditioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0018] The names corresponding to the serial numbers in the figure are as follows:

[0019] Structural column 1, foundation cap 2;

[0020] The return pipe assembly 10 , the return pipe 11 , the first thermal insulation layer 12 , the water supply pipe assembly 20 , the water supply pipe 21 , the second thermal insulation layer 22 , the concrete cover plate 30 , the yellow sand layer 40 , and the backfill soil layer 50 . DETAILED DESCRIPTION

[0021] A structure in which outdoor direct buried pipes are arranged in the gap of the corridor foundation. Figure 1 : Structural columns 1 are respectively arranged on both sides of the width of the corridor, and a foundation pedestal 2 is arranged at the bottom of the corridor, which includes a return pipe assembly 10, a water supply pipe assembly 20, a concrete cover plate 30, a yellow sand layer 40, and a backfill soil layer 50;

[0022] The water return pipe assembly 10 includes a water return pipe 11 and a first insulation layer 12;

[0023] The water supply pipe assembly 20 includes a water supply pipe 21 and a second insulation layer 22;

[0024] Two groups of structural columns 1 arranged at intervals are provided on the upper part of the foundation pedestal 2. The two groups of structural columns 1 and the upper surface of the foundation pedestal 2 are combined to form a pipe placing space. The bottom layer of the pipe placing space is a yellow sand layer 40. A return pipe assembly 10 and a water supply pipe assembly 20 are arranged in parallel in the middle of the thickness direction of the yellow sand layer 40. The upper surface of the yellow sand layer 40 is covered with a concrete cover plate 30. The upper surface of the concrete cover plate 30 is a backfill soil layer 50, and the backfill soil layer 50 is compacted.

[0025] During specific implementation: the overall outer diameters of the return pipe assembly 10 and the water supply pipe assembly 20 are the same;

[0026] The distance between the bottom of the return pipe assembly 10 and the upper surface of the foundation pedestal 2 is equal to the distance between the upper part of the return pipe assembly 10 and the lower surface of the concrete cover slab 30;

[0027] The lateral distance between the return pipe assembly 10 and the water supply pipe assembly 20 is greater than 100mm (greater than 200mm when conditions permit), the spacing between the return pipe assembly 10 and the structural column 1 on the corresponding side is greater than 100mm, and the spacing between the water supply pipe assembly 20 and the structural column 1 on the corresponding side is greater than 100mm; before laying the direct buried pipe, the bottom of the trench is paved with 200mm thick yellow sand with a particle size of ≤8mm. After the direct buried pipe is laid, the yellow sand with a particle size of ≤8mm is backfilled to 200mm above the outer wall of the direct buried pipe, and then covered with a cast-in-place C20 plain concrete slab with a thickness of 100mm, and both ends extend 1 meter beyond the outside of the columns on both sides of the corridor.

[0028] The working process is as follows: the surface layer in the corridor is excavated mechanically first and then manually, and then the distance between the direct-buried insulation pipe and the structural column, and between the pipes is reduced horizontally in the excavation section, and the bottom yellow sand layer is laid on the foundation pedestal. Then the return pipe assembly and the water supply pipe assembly are laid flat at intervals, and then covered with the upper yellow sand layer, and then a concrete cover plate is added on the upper part of the yellow sand layer. The upper surface of the concrete cover plate is the backfill soil layer, and the backfill soil layer is compacted and set. The slope is cancelled at the structural column to complete the laying of the direct-buried pipe; it allows the air-conditioning supply and return water pipes to be laid reliably and stably, ensuring the stable and reliable operation of the central air-conditioning.

[0029] The above is a detailed description of the specific embodiments of the utility model, but the content is only the preferred embodiment of the utility model creation, and cannot be considered to limit the scope of implementation of the utility model creation. All equal changes and improvements made according to the application scope of the utility model creation should still fall within the scope of this patent.

Claims

1. A structure in which an outdoor direct buried pipe is arranged in the gap of a corridor foundation, structural columns are arranged on both sides of the width of the corridor, and a foundation pedestal is arranged at the bottom of the corridor, characterized in that: It includes: A water return pipe assembly, comprising a water return pipe and a first insulation layer; A water supply pipe assembly, comprising a water supply pipe and a second insulation layer; Concrete cover slab; yellow sand layer; and backfill soil; Two groups of structural columns arranged at intervals are provided on the upper part of the foundation pedestal, and the two groups of structural columns and the upper surface of the foundation pedestal are combined to form a pipe placing space, the bottom layer of the pipe placing space is a yellow sand layer, and the return pipe assembly and the water supply pipe assembly are arranged in parallel in the middle of the thickness direction of the yellow sand layer, and the upper surface of the yellow sand layer is covered with the concrete cover plate, and the upper surface of the concrete cover plate is the backfill soil layer, and the backfill soil layer is compacted.

2. The structure of arranging outdoor direct buried pipes in the gap of the corridor foundation according to claim 1, characterized in that: The overall outer diameters of the return pipe assembly and the water supply pipe assembly are the same.

3. The structure of arranging outdoor direct buried pipes in the gap of the corridor foundation as claimed in claim 2, characterized in that: The distance between the bottom of the water return pipe assembly and the upper surface of the foundation pedestal is equal to the distance between the upper part of the water return pipe assembly and the lower surface of the concrete cover plate.

4. The structure of arranging outdoor direct buried pipes in the gap of the corridor foundation as claimed in claim 3, characterized in that: The lateral distance between the return pipe assembly and the water supply pipe assembly is greater than 100 mm, the spacing between the return pipe assembly and the structural column on the corresponding side is greater than 100 mm, and the spacing between the water supply pipe assembly and the structural column on the corresponding side is greater than 100 mm.

5. The structure of arranging outdoor direct buried pipes in the gap of the corridor foundation according to claim 1, characterized in that: The yellow sand layer specifically contains yellow sand particles with a particle size of ≤8 mm.

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