Comprehensive pipe ditch protection device

Abstract

The utility model discloses a comprehensive pipe ditch protection device which comprises a pipe ditch gallery, a plurality of cast-in-place piles vertically arranged at the bottom of the pipe ditch gallery and a backfill protection structure arranged at the top of the pipe ditch gallery. The backfill protection structure comprises a backfill layer wrapping the top of the pipe ditch gallery and a protection plate horizontally arranged on the top face of the backfill layer. The cast-in-place piles are arranged at the bottom of the pipe ditch gallery, the pipe ditch gallery is supported, the situation that the road surface collapses or sinks under the geological condition of surrounding garbage soil is prevented, and a guarantee is provided for stability of the pipe ditch gallery; the backfilling protection structure at the top of the pipe ditch gallery is combined, the whole pipe ditch gallery is protected, plain soil replacement and filling do not need to be conducted on all areas of the foundation at the bottom of the pipe ditch gallery, the problem that the replacement and filling amount is too large is avoided, and the construction cost is effectively saved while the construction quality is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of integrated pipe trench foundation construction technology, and in particular relates to an integrated pipe trench protection device. Background Technology

[0002] A utility tunnel is a channel that can accommodate several public utility pipelines. It is typically located under roads and is used to house two or more public and municipal pipelines and their ancillary equipment (also known as a common trench or integrated corridor). Traditional utility pipeline construction methods include direct burial, which requires repeated road excavation, severely impacting urban traffic and appearance, and disrupting residents' normal lives and work; and consolidating multiple underground pipelines, some or all, into a common underground tunnel for joint maintenance and centralized management. This type of construction generally has good geological conditions and relatively flat terrain, preventing road collapse or subsidence. However, if the construction site contains a large area of ​​backfill soil, and the soil is uneven due to layering of construction waste, coarse sand, clay, etc., resulting in loose and uneven soil, the soil conditions at the construction site, as a natural foundation, may not meet the construction requirements if an underground tunnel is used for protection. Furthermore, if an excavation and replacement foundation method is used, it may result in excessive replacement volume, increasing construction costs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a comprehensive trench protection device to address the shortcomings of the prior art. By setting cast-in-place piles at the bottom of the trench, the trench is supported, preventing road collapse or subsidence under the geological conditions of surrounding garbage soil, thus ensuring the stability of the trench. Combined with the backfill protection structure at the top of the trench, the entire trench is protected without the need for soil replacement in all areas of the foundation at the bottom of the trench, avoiding the problem of excessive replacement volume. This effectively saves construction costs while ensuring construction quality.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a comprehensive trench protection device, characterized in that: it includes a trench gallery, a plurality of cast-in-place piles that are vertically arranged at the bottom of the trench gallery, and a backfill protection structure arranged at the top of the trench gallery;

[0005] The pipe trench is laid out along the extension direction of the pipeline. The pipe trench is a cuboid structure and a reinforced concrete structure. The interior of the pipe trench is hollow and serves as the installation area for the pipeline.

[0006] A trench wall cushion layer is horizontally provided at the connection between the cast-in-place pile and the trench wall, and the trench wall cushion layer is horizontally arranged at the bottom of the trench wall; a plurality of cast-in-place piles are arranged along the extension direction of the trench wall, and the plurality of cast-in-place piles are arranged in a wave shape, the cast-in-place piles are concrete piles, and the top steel bars of the cast-in-place piles extend into the trench wall.

[0007] The backfill protection structure includes a backfill layer covering the top of the pipe trench and a protective plate horizontally disposed on the top surface of the backfill layer.

[0008] The aforementioned integrated trench protection device is characterized in that the height range of the cast-in-place piles is 12m to 15m.

[0009] The aforementioned integrated trench protection device is characterized in that: the backfill layer is a plain soil layer, and the height of the backfill layer is not less than 2m.

[0010] The above-mentioned integrated pipe trench protection device is characterized in that: the protective plate is a reinforced concrete plate, and the protective plate is arranged along the extension direction of the pipeline.

[0011] The beneficial effects of this utility model are that by setting cast-in-place piles at the bottom of the pipe tunnel, the pipe tunnel is supported, preventing road collapse or subsidence under the geological conditions of surrounding garbage soil, thus ensuring the stability of the pipe tunnel; combined with the backfill protection structure at the top of the pipe tunnel, the entire pipe tunnel is protected, eliminating the need for soil replacement in all areas of the foundation at the bottom of the pipe tunnel, avoiding the problem of excessive replacement volume, and effectively saving construction costs while ensuring construction quality.

[0012] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram showing the connection relationship between the cast-in-place pile and the pipe trench gallery of this utility model.

[0015] Explanation of reference numerals in the attached figures:

[0016] 1—Pipe tunnel; 2—Cast-in pile; 3—Pipe tunnel bedding layer;

[0017] 4—Backfill layer; 5—Protective board; 6—Road surface. Detailed Implementation

[0018] like Figure 1 and Figure 2As shown, this utility model includes a pipe trench 1, a plurality of cast-in-place piles 2 all vertically arranged at the bottom of the pipe trench 1, and a backfill protection structure arranged at the top of the pipe trench 1.

[0019] The pipe trench 1 is laid out along the extension direction of the pipeline. The pipe trench 1 is a cuboid structure and a reinforced concrete structure. The interior of the pipe trench 1 is hollow and serves as the installation area for the pipeline.

[0020] A trench wall cushion layer 3 is horizontally provided at the connection between the cast-in-place pile 2 and the trench wall 1. The trench wall cushion layer 3 is horizontally arranged at the bottom of the trench wall 1. A plurality of cast-in-place piles 2 are arranged along the extension direction of the trench wall 1. The plurality of cast-in-place piles 2 are arranged in a wave-like pattern. The cast-in-place piles 2 are concrete piles. The top steel bars of the cast-in-place piles 2 extend into the trench wall 1.

[0021] The backfill protection structure includes a backfill layer 4 covering the top of the trench 1 and a protective plate 5 horizontally disposed on the top surface of the backfill layer 4.

[0022] In actual use, by setting cast-in-place piles 2 at the bottom of the pipe corridor 1, the pipe corridor 1 is supported, preventing road collapse or subsidence under the geological conditions of the surrounding garbage soil, thus ensuring the stability of the pipe corridor 1. Combined with the backfill protection structure on the top of the pipe corridor 1, the entire pipe corridor 1 is protected, eliminating the need for soil replacement in all areas of the foundation at the bottom of the pipe corridor 1, avoiding the problem of excessive replacement volume, and effectively saving construction costs while ensuring construction quality.

[0023] It should be noted that after the protective plate 5 is constructed, the road surface 6 is laid on the protective plate 5. During the construction of the entire pipe trench 1, the area between the two expansion joints constitutes a section of the pipe trench 1. If the cast-in-place piles 2 at both ends of the section are not kept horizontally aligned during the construction of the section, it will cause eccentric settlement at the ends of the section, such as... Figure 2 As shown, the cast-in-place piles 2 at both ends of the corridor are horizontally aligned, while the cast-in-place piles 2 in the middle of the corridor are arranged in a wave-like pattern.

[0024] In this embodiment, the height of the cast-in-place pile 2 ranges from 12m to 15m.

[0025] In actual use, the height of the cast-in-place pile 2 is preferably 12m, and the diameter of the cast-in-place pile 2 is 700mm; 20 cast-in-place piles 2 are required for every 100m long pipe trench 1. In addition, the diameter and length of the cast-in-place piles can be determined according to the actual geological conditions, actual load values, and technical data such as the survey report.

[0026] In this embodiment, the backfill layer 4 is a plain soil layer, and the height of the backfill layer 4 is not less than 2m.

[0027] In this embodiment, the protective plate 5 is a reinforced concrete plate, and the protective plate 5 is arranged along the extension direction of the pipeline.

[0028] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A utility tunnel protection device, characterized by: It includes a pipe gallery (1), multiple cast-in-place piles (2) that are vertically installed at the bottom of the pipe gallery (1), and a backfill protection structure installed at the top of the pipe gallery (1); The pipe trench (1) is laid out along the extension direction of the pipeline. The pipe trench (1) is a cuboid structure and a reinforced concrete structure. The interior of the pipe trench (1) is hollow and the interior of the pipe trench (1) is the installation area of ​​the pipeline. A trench cushion layer (3) is horizontally provided at the connection between the cast-in-place pile (2) and the trench corridor (1). The trench cushion layer (3) is horizontally arranged at the bottom of the trench corridor (1). Multiple cast-in-place piles (2) are arranged along the extension direction of the trench corridor (1). Multiple cast-in-place piles (2) are arranged in a wave-like pattern. The cast-in-place piles (2) are concrete piles. The top steel bars of the cast-in-place piles (2) extend into the trench corridor (1). The backfill protection structure includes a backfill layer (4) covering the top of the trench (1) and a protective plate (5) horizontally arranged on the top surface of the backfill layer (4).

2. The utility tunnel protection device according to claim 1, wherein: The height range of the cast-in-place pile (2) is 12m to 15m.

3. The utility tunnel protection device according to claim 1, wherein: The backfill layer (4) is a plain soil layer, and the height of the backfill layer (4) is not less than 2m.

4. The utility tunnel protection system of claim 1, wherein: The protective plate (5) is a reinforced concrete plate, and the protective plate (5) is laid along the extension direction of the pipeline.

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