A corridor foundation outdoor direct buried pipeline layout structure

Abstract

The utility model discloses an outdoor direct-buried pipeline arrangement structure of a corridor foundation, comprising a foundation bearing platform, wherein the upper end of the foundation bearing platform is provided with structural columns at positions on both sides of the left and right sides, and in combination with the actual special site conditions, the corridor adopts a mechanical excavation method first and then a manual excavation method, the cross section of the direct-buried pipe groove is smaller than the cross section size of the standard groove in the horizontal and vertical directions, the slope on both sides of the groove is cancelled, the distance between the side wall of the groove and the outer wall of the direct-buried pipe is ≥100mm, the distance between the direct-buried pipe and the outer wall of the direct-buried pipe is ≥100mm, and 200mm is met when conditions permit, the bottom of the groove is filled with sand (grain size ≤2mm) with a thickness of 200mm before the direct-buried pipe is laid, and the sand (grain size ≤2mm) is filled to a height of 200mm above the outer wall of the direct-buried pipe after the direct-buried pipe is laid, and then a C20 concrete cover plate is added with a thickness of 100mm, and both ends are respectively beyond the outer sides of the columns on both sides of the corridor by one meter, the top is backfilled and compacted, and the laying of the direct-buried pipe is completed; the width, depth and slope of the direct-buried pipe groove in the area outside the corridor are excavated and laid according to standard requirements.

Description

Technical Field

[0001] The utility model belongs to the technical field related to outdoor direct-buried pipelines in corridor foundation gaps, and in particular relates to an outdoor direct-buried pipeline arrangement structure for corridor foundations. Background Art

[0002] Outdoor direct buried pipes in the gaps of corridor foundations refer to outdoor pipes buried in the gaps of building corridor foundations. These pipes can be used to transport various media such as water, electricity, gas, etc., and usually need to comply with relevant safety standards and regulations. During the design and construction process, factors such as the material, size, burial depth, and anti-corrosion measures of the pipes need to be considered to ensure the safe operation and use of the pipes.

[0003] The outdoor hot and cold water pipes of a central air-conditioning project were reconstructed and re-piped. Due to restrictions on site conditions, the air-conditioning supply and return pipes had to be laid across the corridor. Due to the spacing between columns and foundation slabs, the excavation section of the outdoor direct-buried insulation pipe trench and the local excavation width, burial depth, and slope at the corridor columns could not meet the requirements. Utility Model Content

[0004] The purpose of the utility model is to provide an outdoor direct-buried pipeline arrangement structure for a corridor foundation, so as to solve the problem that the outdoor hot and cold water pipeline reconstruction and re-piping construction of a central air-conditioning project proposed in the above-mentioned background technology is that the air-conditioning supply and return water pipes need to be laid across the corridor due to site conditions, and the outdoor direct-buried insulation pipe trench excavation section, the local excavation width, burial depth and slope at the corridor columns cannot meet the requirements due to column spacing and foundation pedestal limitations.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a corridor foundation outdoor direct buried pipeline arrangement structure, including a foundation pedestal, the upper end of the foundation pedestal is equipped with structural columns at left and right sides, the structural columns are installed with the foundation pedestal through the column foot bottom plate at the lower end, the column foot bottom plate is used to lock the structural columns and the foundation pedestal through the anchor bolts at the four corners of the upper end, the upper end of the foundation pedestal is provided with sand filling, the upper end of the sand filling is placed with a concrete slab, the upper part of the concrete slab is provided with backfill soil, and the interior of the sand filling is provided with a directly buried pipeline body.

[0006] Preferably, two directly buried pipeline bodies are provided, and the directly buried pipeline bodies are used for return water and water supply respectively.

[0007] Preferably, the structural column is fixed by means of a column foot plate and anchor bolts, and the structural column is installed at a right angle to the foundation pedestal.

[0008] Preferably, the sand filling lays two directly buried pipeline bodies at internal positions.

[0009] Preferably, the concrete slab is pressed at the upper end position of the sand filling.

[0010] Compared with the prior art, the utility model provides a corridor foundation outdoor direct buried pipeline arrangement structure, which has the following beneficial effects:

[0011] In view of the actual situation on site, the corridor adopts the method of first mechanical excavation and then manual excavation. The cross-section of the direct buried pipe trench is smaller than the standard trench cross-section in both horizontal and vertical directions. The slope on both sides of the trench is cancelled. The side wall of the trench is ≥100mm away from the outer wall of the direct buried pipe. The distance between the direct buried pipe and the outer wall of the direct buried pipe is ≥100mm, and 200mm is met when conditions permit. Before laying the direct buried pipe, the bottom of the trench is filled with sand (particle size ≤2mm) 200mm thick. After laying the direct buried pipe, fill with sand (particle size ≤2mm) to 200mm higher than the outer wall of the direct buried pipe, and then cover it with C20 concrete cover plate with a thickness of 100mm. The two ends extend one meter beyond the outside of the columns on both sides of the corridor, and the top is backfilled and compacted to complete the laying of the direct buried pipe. The width, depth and slope of the direct buried pipe trench in the area outside the corridor are excavated and laid according to standard requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the outdoor direct-buried pipeline arrangement structure of a corridor foundation of the utility model.

[0013] In the figure: 1. Foundation pedestal; 2. Anchor bolts; 3. Direct buried pipe body; 4. Concrete slab; 5. Backfill soil; 6. Sand filling; 7. Structural column; 8. Column foot plate. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0015] The utility model provides Figure 1 The outdoor direct buried pipeline arrangement structure of a corridor foundation shown in the figure includes a foundation pedestal 1, and structural columns 7 are installed at the upper ends of the foundation pedestal 1 at the left and right sides. The structural columns 7 are installed with the foundation pedestal 1 through the column foot bottom plate 8 located at the lower end. The column foot bottom plate 8 locks the structural columns 7 and the foundation pedestal 1 through the anchor bolts 2 at the four corners of the upper end. Sand filling 6 is arranged at the upper end of the foundation pedestal 1, and a concrete slab 4 is placed at the upper end of the sand filling 6. Backfill soil 5 is arranged on the upper part of the concrete slab 4, and the direct buried pipeline body 3 is laid inside the sand filling 6.

[0016] In combination with the actual situation of the special site, the excavation method of first mechanical and then manual is adopted. The excavation section is horizontally reduced to reduce the distance between the direct-buried insulation pipe and the trench wall, and between the pipes. A concrete cover plate is added to the upper part of the sand fill 6, and the slope is cancelled at the column to complete the laying of the direct-buried pipe. The trench section is smaller than the direct-buried pipe trench section requirements both horizontally and vertically.

[0017] like Figure 1 As shown, two directly buried pipe bodies 3 are provided, which are used for return water and water supply respectively. The structural column 7 is fixed by the column foot plate 8 and the anchor bolt 2. The structural column 7 is installed at a right angle to the foundation pedestal 1. The two directly buried pipe bodies 3 are laid inside the sand filling 6, and the concrete slab 4 is pressed on the upper end of the sand filling 6.

[0018] In view of the actual situation on site, the corridor adopts the method of first mechanical excavation and then manual excavation. The cross-section of the direct buried pipe trench is smaller than the standard trench cross-section in both horizontal and vertical directions. The slope on both sides of the trench is cancelled. The side wall of the trench is ≥100mm away from the outer wall of the direct buried pipe. The distance between the direct buried pipe and the outer wall of the direct buried pipe is ≥100mm, and 200mm is met when conditions permit. Before laying the direct buried pipe, the bottom of the trench is filled with sand 6 (particle size ≤2mm) 200mm thick. After laying the direct buried pipe, fill with sand 6 (particle size ≤2mm) to 200mm higher than the outer wall of the direct buried pipe, and then cover it with C20 concrete cover plate with a thickness of 100mm, and both ends extend one meter beyond the outside of the columns on both sides of the corridor. The top is backfilled with soil 5 and compacted to complete the laying of the direct buried pipe. The width, depth and slope of the direct buried pipe trench in the area outside the corridor are excavated and laid according to standard requirements.

[0019] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A corridor foundation outdoor direct buried pipeline layout structure, characterized in that: The invention comprises a foundation support (1), wherein the upper end of the foundation support (1) is provided with structural columns (7) at positions on the left and right sides, the structural columns (7) are installed with the foundation support (1) via a column foot bottom plate (8) located at the lower end, the column foot bottom plate (8) locks the structural columns (7) with the foundation support (1) via anchor bolts (2) at the four corners of the upper end, the upper end of the foundation support (1) is provided with sand filling (6), the upper end of the sand filling (6) is provided with a concrete slab (4), the upper part of the concrete slab (4) is provided with backfill soil (5), and the interior of the sand filling (6) is provided with a directly buried pipeline body (3).

2. The outdoor direct buried pipeline arrangement structure of the corridor foundation according to claim 1 is characterized by: Two directly buried pipeline bodies (3) are provided, and the directly buried pipeline bodies (3) are used for water return and water supply respectively.

3. The outdoor direct buried pipeline arrangement structure of the corridor foundation according to claim 1 is characterized by: The structural column (7) is fixed by means of a column foot bottom plate (8) and anchor bolts (2), and the structural column (7) is installed at a right angle to the foundation support (1).

4. The outdoor direct buried pipeline arrangement structure of the corridor foundation according to claim 1 is characterized by: The sand filling (6) is used to lay two directly buried pipeline bodies (3) at internal positions.

5. The outdoor direct buried pipeline arrangement structure of the corridor foundation according to claim 4 is characterized by: The concrete slab (4) is pressed on the upper end of the sand filling (6).

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