Construction method of crossing pipelines

Abstract

The application discloses a construction method of up-and-down crossed pipelines, which comprises the following steps: S1, slope excavation to form a groove; S2, pouring a concrete cushion layer at the bottom of the groove; S3, placing a formwork at both sides of the groove and pouring concrete at both sides of the groove; S4, fixing a lower pipeline between the two formworks; S5, pouring concrete between the two formworks to cover part of the pipe wall of the lower pipeline; S6, backfilling sand between the two formworks to a specified elevation; S7, placing a cast-in-situ reinforced concrete cover plate above the sand; and S8, installing an upper pipeline. The application provides a construction method of up-and-down crossed pipelines which is stable and reliable in structure and rapid in construction.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically a construction method for vertically intersecting pipes. Background Technology

[0002] As cities develop, the number of pipelines buried under municipal roads is gradually increasing, leading to frequent pipeline intersections and conflicts. If these conflicts are not handled properly, they will not only increase construction difficulty but also negatively impact project quality.

[0003] In summary, the existing technology still lacks a construction method for vertically intersecting pipelines that is structurally stable, reliable, and quick to construct. Summary of the Invention

[0004] This invention provides a construction method for vertically intersecting pipelines that is structurally stable, reliable, and quick to construct.

[0005] To achieve this objective, the present invention provides the following technical solution:

[0006] This invention provides a construction method for intersecting pipes, comprising the following steps:

[0007] S1. Excavate on a slope to form a trench;

[0008] S2. Pour a plain concrete cushion layer at the bottom of the trench;

[0009] S3. Place templates on both sides of the trench and pour plain concrete on both sides of the trench.

[0010] S4. Install and fix the lower-level pipe between the two templates;

[0011] S5. Pour concrete between the two templates to enclose the pipe wall of the lower layer until it partially covers the pipe wall.

[0012] S6. Backfill the trench between the two templates with sand to the specified elevation;

[0013] S7. Place a cast-in-place reinforced concrete cover plate on top of the sand;

[0014] S8. Install the upper-level pipes.

[0015] Preferably, step S2 includes: pouring a 100mm thick C15 plain concrete cushion layer.

[0016] Preferably, in step S3, the template is a wooden template.

[0017] Preferably, step S4 includes: hoisting the lower-level pipe into the trench between the two templates, and fixing it with pipe supports to ensure that the pipe elevation matches the design.

[0018] Preferably, step S5 further includes: placing oil-impregnated wooden boards on the inner sides of the two templates respectively, and pouring concrete between the oil-impregnated wooden boards and the lower pipe.

[0019] Preferably, in step S6, the sand is medium-coarse sand.

[0020] Preferably, the angle formed by the vertices of the two oil-impregnated wooden boards and the center of the side of the lower pipe is 135°.

[0021] Preferably, step S6 further includes: water-compacting the backfill sand.

[0022] A preferred method for constructing intersecting pipes includes the following steps:

[0023] Step 1, Slope Excavation: First, slope excavation is carried out to form a stable trench.

[0024] Step 2, Subbase construction: Pour a 100mm thick C15 plain concrete subbase at the bottom of the trench;

[0025] Step 3: Construction of plain concrete on both sides of the trench: Place wooden formwork on both sides of the trench, and then pour C15 plain concrete on both sides of the trench.

[0026] Step 4: Install the lower layer pipe: Hoist the Φ1000 lower layer concrete pipe into the trench and fix it with pipe supports to ensure that the pipe elevation matches the design.

[0027] Step 5, Concrete Encapsulation: Place oil-impregnated wooden boards, 600mm high and 50mm thick. The oil-impregnated wooden boards serve as templates, caulking, and waterproofing. Then pour C15 concrete to encapsulate the boards at a 135° angle (the angle formed by the vertices of the two oil-impregnated wooden boards and the center of the side of the lower pipe is 135°).

[0028] Step 6: Backfilling with sand: Use medium-coarse sand to backfill the trench. After backfilling, water compaction should be carried out to ensure that the backfill sand is in a dense state. Note that the height of the reinforced concrete cover plate should be reserved.

[0029] Step 7, Cover Plate Installation: Cast-in-place reinforced concrete cover plate, with dimensions of 1800mm in length, 1400mm in width, and 80mm in thickness; the overlap length between the cover plate and the plain concrete below on both sides is 200mm.

[0030] Step 8: Install the upper-level pipe: Install the Φ800 upper-level concrete pipe.

[0031] Compared with the prior art, the beneficial effects and significant progress of the present invention are as follows:

[0032] 1. No need to change the pipeline's burial elevation or cross-section;

[0033] 2. No additional structures such as inverted siphons and inspection wells are required, resulting in lower extra costs;

[0034] 3. The structure is stable and reliable, avoiding mutual interference and damage to pipes with short vertical clearance. Attached Figure Description

[0035] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the embodiments of the present invention will be briefly introduced below.

[0036] Obviously, the accompanying drawings described below are only some of the drawings of the embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort, but these other drawings are also within the scope of the drawings required for the embodiments of the present invention.

[0037] Figure 1 This is a flowchart illustrating a construction method for vertically intersecting pipelines according to an embodiment of the present invention.

[0038] Figure 2 This is a construction effect diagram of a construction method for an intersecting pipeline according to an embodiment of the present invention;

[0039] The attached diagram shows the following labels: 1. Wooden formwork; 2. Oil-impregnated wooden board; 3. Plain concrete bedding layer; 4. Plain concrete on both sides of the trench; 5. Concrete encapsulation; 6. Lower concrete pipe; 7. Backfill sand; 8. Reinforced concrete cover plate; 9. Upper concrete pipe. Detailed Implementation

[0040] To make the objectives, technical solutions, beneficial effects, and significant advancements of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention.

[0041] Obviously, all the embodiments described are only some embodiments of the present invention, and not all embodiments; based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] It should be noted that the terms "first," "second," and "third" (if any) in the specification and claims of this invention are used only to distinguish different objects and not to describe a specific order. Furthermore, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0043] What needs to be understood is:

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "installation", "connection", "fixation" and the like should be interpreted broadly. For example, it can be a fixed connection, a detachable connection or a movable connection, or it can be an integral part; it can be a direct connection, an indirect connection through an intermediate medium, or an invisible signal connection, or even an optical connection; it can be the internal connection of two elements or the interaction between two elements, unless otherwise explicitly limited.

[0045] Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] It should also be noted that the following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0047] The technical solution of the present invention will now be described in detail with reference to specific embodiments.

[0048] Example 1

[0049] like Figure 1 The diagram shows a flowchart of a construction method for intersecting pipes, including:

[0050] S1. Excavate on a slope to form a trench;

[0051] S2. Pour a plain concrete cushion layer at the bottom of the trench;

[0052] S3. Place templates on both sides of the trench and pour plain concrete on both sides of the trench.

[0053] S4. Install and fix the lower-level pipe between the two templates;

[0054] S5. Pour concrete between the two templates to enclose the pipe wall of the lower layer until it partially covers the pipe wall.

[0055] S6. Backfill the trench between the two templates with sand to the specified elevation;

[0056] S7. Place a cast-in-place reinforced concrete cover plate on top of the sand;

[0057] S8. Install the upper-level pipes.

[0058] Preferably, step S2 includes: pouring a 100mm thick C15 plain concrete cushion layer.

[0059] Preferably, in step S3, the template is a wooden template.

[0060] Preferably, step S4 includes: hoisting the lower-level pipe into the trench between the two templates, and fixing it with pipe supports to ensure that the pipe elevation matches the design.

[0061] Preferably, step S5 further includes: placing oil-impregnated wooden boards on the inner sides of the two templates respectively, and pouring concrete between the oil-impregnated wooden boards and the lower pipe.

[0062] Preferably, the sand is medium to coarse sand.

[0063] Preferably, the angle formed by the vertices of the two oil-impregnated wooden boards and the center of the side of the lower pipe is 135°.

[0064] Preferably, step S6 further includes: water compacting the backfill sand.

[0065] Example 2

[0066] like Figure 2 The diagram shows the construction effect of a method for constructing intersecting pipes. The method includes wooden formwork 1, oil-impregnated wooden boards 2, plain concrete bedding 3, plain concrete on both sides of the trench 4, concrete enclosure 5, lower concrete pipe 6, backfill sand 7, reinforced concrete cover 8, and upper concrete pipe 9. The wooden formwork 1 is placed on both sides of the trench, the oil-impregnated wooden boards 2 are placed inside the wooden formwork 1, the lower concrete pipe 6 (lower pipe) is placed between two wooden formworks 1, the upper wall of the lower concrete pipe 6 (lower pipe) is embedded in the backfill sand 7, and the lower wall is embedded in the concrete enclosure 5. The outside of the trench is filled with plain concrete on both sides of the trench 4, the bottom of the trench is filled with plain concrete bedding 3, the reinforced concrete cover 8 is placed on the backfill sand 7, and the upper concrete pipe 9 is placed on the concrete cover 8.

[0067] In this embodiment, the plain concrete cushion layer 3 is 100mm thick C15.

[0068] In this embodiment, the plain concrete 4 on both sides of the trench is C15.

[0069] In this embodiment, the lower concrete pipe 6 is a Φ1000 pipe.

[0070] In this embodiment, the oil-impregnated wood board 2 is 600mm high and 50mm thick.

[0071] In this embodiment, the backfill sand 7 is medium-coarse sand.

[0072] In this embodiment, the reinforced concrete cover plate 8 has dimensions of 1800mm in length, 1400mm in width, and 80mm in thickness.

[0073] In this embodiment, the upper concrete pipe 9 is a Φ800 pipe.

[0074] This embodiment uses the following construction method:

[0075] Step 1, Slope Excavation: First, slope excavation is carried out to form a stable trench.

[0076] Step 2, Subbase construction: Pour a 100mm thick C15 plain concrete subbase 3 at the bottom of the trench;

[0077] Step 3, plain concrete construction on both sides of the trench: place wooden formwork 1 on both sides of the trench, and then pour C15 plain concrete 4 on both sides of the trench;

[0078] Step 4: Install the lower layer pipe: Hoist the Φ1000 lower layer concrete pipe 6 into the trench and fix it with pipe supports to ensure that the pipe elevation matches the design.

[0079] Step 5, Concrete Encapsulation: Place oil-impregnated wooden board 2, which is 600mm high and 50mm thick. The oil-impregnated wooden board serves as a template, caulking material, and waterproofing material. Then pour C15 concrete to encapsulate 5, with the concrete encapsulation angled at 135°.

[0080] Step 6: Backfilling with sand: Use medium-coarse sand 7 to backfill the trench. After backfilling, water compaction should be carried out to ensure that the backfill sand is in a dense state. Note that the height of the reinforced concrete cover plate 8 should be reserved.

[0081] Step 7, Cover plate installation: Cast-in-place reinforced concrete cover plate 8, the cover plate dimensions are 1800mm long, 1400mm wide, and 80mm thick, and the overlap length with the plain concrete below on both sides is 200mm.

[0082] Step 8: Install the upper layer pipe: Install the Φ800 upper layer concrete pipe 9.

[0083] In the description process of the above instruction manual:

[0084] The terms "this embodiment," "an embodiment of the present invention," "as shown," "further," and "further improved technical solutions," etc., indicate that the specific features, structures, materials, or characteristics described in the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms are not necessarily directed at the same embodiment or example, and the specific features, structures, materials, or characteristics described can be combined or combined in any suitable manner in one or more embodiments or examples. Furthermore, without causing contradiction, those skilled in the art can combine or combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.

[0085] Finally, it should be noted that:

[0086] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them;

[0087] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. Non-essential improvements, adjustments or substitutions made by those skilled in the art based on the content of this specification are all within the scope of protection claimed by the present invention.

Claims

1. A construction method for vertically intersecting pipes, characterized in that, Includes the following steps: S1. Excavate on a slope to form a trench; S2. Pour a plain concrete cushion layer at the bottom of the trench; S3. Place templates on both sides of the trench and pour plain concrete on both sides of the trench. S4. Install and fix the lower-level pipe between the two templates; Step S4 includes: hoisting the lower-level pipe into the trench between the two templates and fixing it with pipe supports to ensure that the pipe elevation matches the design. S5. Pour concrete between the two templates to enclose the pipe wall of the lower layer until it partially covers the pipe wall. S6. Backfill the trench between the two templates with sand to the specified elevation; S7. Place a cast-in-place reinforced concrete cover plate on top of the sand; S8. Install the upper-level pipes on the concrete cover slab.

2. The construction method for vertically intersecting pipelines as described in claim 1, characterized in that, Step S2 includes: pouring a 100mm thick C15 plain concrete foundation.

3. The construction method for vertically intersecting pipelines as described in claim 1, characterized in that, In step S3, the template is a wooden template.

4. The construction method for vertically intersecting pipelines as described in claim 1, characterized in that, Step S5 also includes: placing oil-impregnated wooden boards on the inside of the two templates respectively, and pouring concrete between the oil-impregnated wooden boards and the lower pipe.

5. The construction method for vertically intersecting pipelines as described in claim 1, characterized in that, In step S6, the sand is medium to coarse sand.

6. The construction method for an intersecting pipeline as described in claim 4, characterized in that, The angle formed by the vertices of the two oil-impregnated wooden boards and the center of the side of the lower pipe is 135°.

7. The construction method for vertically intersecting pipelines as described in claim 1, characterized in that, Step S6 also includes: water compacting the backfill sand.

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