A pipeline protection device for underground construction

Abstract

The utility model discloses a pipeline protection device for underground construction belongs to the vertical blocking technical field of pollution site, solve the problem that the prior art is easy to cause damage to the underground pipeline during construction, the pipeline protection device for underground construction specifically includes rigid pipe cover, and the rigid pipe cover is equipped with in the periphery of pipeline, and the both ends of rigid pipe cover are fixed through two groups of pipe hoop subassembly respectively, and the bottom support of rigid pipe cover has two support subassembly, and two support subassembly are arranged respectively in the both sides of pipeline bearing position, in the utility model, after digging out pipeline, the rigid pipe cover is covered on the pipeline during construction, and the both ends of rigid pipe cover adopt pipe hoop subassembly and fix, realize the protection to pipeline, avoid damaging pipeline when building vertical blocking wall in later period, utilize support subassembly and support pipeline, enhance its carrying capacity, make it can bear the weight of vertical blocking wall.

Description

Technical Field

[0001] This utility model relates to the field of vertical barrier technology for contaminated sites, and in particular to a pipeline protection device for underground construction. Background Technology

[0002] In contaminated site risk management engineering, constructing vertical barrier walls is a crucial measure to control the spread of underground pollutants to the surrounding area. The construction plan for vertical barrier walls must be determined based on the actual site conditions; however, the complex underground structure of contaminated sites increases the difficulty of constructing vertical barrier walls.

[0003] In industrial contaminated site risk management projects, situations frequently arise where complex underground pipelines hinder the construction of vertical barrier walls. In such cases, it's crucial to achieve effective vertical barrier construction while simultaneously protecting the underground pipelines from damage. Therefore, construction processes must be tailored to the site conditions to meet specific requirements; however, this method is costly, inefficient, and impractical. Therefore, a method is needed to construct vertical barrier walls without avoiding pipelines and without causing damage to them.

[0004] Therefore, this utility model provides a pipeline protection device for underground construction projects in complex underground pipeline sites. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a pipeline protection device for underground construction, which solves the problem that underground pipelines are easily damaged during construction.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A pipeline protection device for underground construction includes a rigid sleeve, which is fitted around the pipeline; both ends of the rigid sleeve are fixed by two sets of pipe clamp assemblies; the bottom of the rigid sleeve is supported by two support assemblies, which are respectively set on both sides of the load-bearing position of the pipeline.

[0008] In this scheme, during construction, after the pipeline is excavated, a rigid pipe sleeve is placed on the pipeline, and the two ends of the rigid pipe sleeve are fixed with pipe clamp assemblies, which protects the pipeline and prevents damage to the pipeline when the vertical barrier wall is built later. Support components are used to support the pipeline, enhance its load-bearing capacity, and enable it to withstand the weight of the vertical barrier wall.

[0009] Furthermore, the rigid sleeve includes an upper sleeve and a lower sleeve, which are two symmetrical semi-circular structures; the upper sleeve and the lower sleeve are respectively fastened to the top and bottom of the pipeline.

[0010] In this solution, the upper and lower sleeves are fastened to the pipeline, which not only provides protection for the pipeline but also enhances its strength, preventing external forces from directly damaging it.

[0011] Furthermore, the pipe clamp assembly includes two semi-circular pipe clamp bodies, which are fitted onto the ends of the upper and lower pipe sleeves to fix them. Connecting plates are provided at the connection points of the two pipe clamp bodies, and the connecting plates of the two pipe clamp bodies are connected by pipe clamp bolts.

[0012] In this design, the pipe clamp assembly is designed so that during installation, only the two pipe clamp bodies need to be connected together using pipe clamp bolts, making it easy to fix.

[0013] Furthermore, a step is provided on the inner side of the pipe clamp body, and the edges of the upper and lower pipe sleeves are locked inside the step of the pipe clamp body.

[0014] Furthermore, the support assembly includes two support frames, which are respectively supported on both sides of the pipeline;

[0015] The support frame includes a base plate, a load-bearing plate vertically connected to the base plate, and a support plate connected to the top of the load-bearing plate; the support plate has an arc-shaped structure.

[0016] When supported by two support frames, the two support plates of the two support frames are spliced ​​together to form a whole arc-shaped structure, which together support the bottom of the pipeline.

[0017] In this design, the support components consist of two support frames. During actual construction, the two support frames can be installed from both sides of the pipeline, so that the support plates of the two support frames are spliced ​​together to form a whole arc structure to support the pipeline. The design of the two support plates facilitates installation.

[0018] Furthermore, the load-bearing plates of the two support frames are connected by fastening bolts;

[0019] Both support frames have bolt holes on their base plates, and expansion bolts for connecting to the ground are installed in the bolt holes.

[0020] Furthermore, reinforcing ribs are also provided between the load-bearing plate and the base plate.

[0021] Furthermore, the rigid pipe sleeve is wrapped with an HDPE pipe membrane.

[0022] In this solution, an HDPE membrane is installed on the rigid pipe sleeve, which can seal the gaps in the rigid pipe sleeve. At the same time, after the vertical barrier wall is constructed, the continuity of the vertical barrier wall is ensured, avoiding gaps between the wall and the rigid pipe sleeve, which could lead to pollutant leakage.

[0023] Furthermore, the rigid sleeve is made of rigid PE.

[0024] Furthermore, the HDPE pipe membrane is hot-melt welded onto the rigid pipe sleeve.

[0025] The beneficial effects of this utility model are:

[0026] This utility model relates to a pipeline protection device for underground construction. During construction, after the pipeline is excavated, a rigid sleeve is placed over the pipeline to protect it. The two ends of the rigid sleeve are fixed with pipe clamp bodies. When fixing, the two pipe clamp bodies are connected by pipe clamp bolts, which is convenient.

[0027] The design of the support components allows two support frames to be installed from opposite sides of the pipeline during actual construction. This allows the support plates of the two support frames to be spliced ​​together into a single arc-shaped structure, supporting the pipeline and enhancing its load-bearing capacity. At the same time, it facilitates installation and avoids the problem of the support plates being unable to be installed due to the limited groove depth at the bottom of the pipeline. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a pipeline protection device for underground construction according to the present invention;

[0029] Figure 2 This is a schematic diagram of the pipeline protection device and pipeline assembly in this utility model;

[0030] Figure 3 This is an exploded view of a pipeline protection device for underground construction according to the present invention.

[0031] Figure 4 This is a schematic diagram of the pipeline protection device, pipeline, and vertical barrier wall in Example 2.

[0032] Figure label:

[0033] 1. Rigid pipe sleeve; 11. Upper pipe sleeve; 12. Lower pipe sleeve; 2. Pipeline; 3. Pipe clamp assembly; 31. Pipe clamp body; 32. Connecting plate; 33. Pipe clamp bolt; 4. Support assembly; 41. Support frame; 42. Load-bearing plate; 43. Support plate; 44. Base plate; 45. Fastening bolt; 46. Expansion bolt; 47. Reinforcing rib; 5. HDPE pipe membrane; 6. Vertical barrier wall; Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The specific embodiments of the present invention are described below to facilitate understanding by those skilled in the art. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they fall within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0035] like Figures 1-3 As shown, this embodiment provides a pipeline protection device for underground construction, solving the problem that underground pipelines are easily damaged during construction in the prior art; the pipeline protection device specifically includes:

[0036] Rigid pipe sleeve 1, pipe clamp assembly 3, support assembly 4, and HDPE pipe membrane 5;

[0037] A rigid pipe sleeve 1 is fitted around the pipeline 2; both ends of the rigid pipe sleeve 1 are fixed by two sets of pipe clamp assemblies 3; an HDPE pipe membrane 5 is wrapped around the rigid pipe sleeve 1; during construction, after the pipeline 2 is excavated, the rigid pipe sleeve 1 is fitted onto the pipeline 2, and both ends of the rigid pipe sleeve 1 are fixed by pipe clamp assemblies 3, thus protecting the pipeline 2 and preventing damage to the pipeline 2 when the vertical barrier wall 6 is constructed later. The bottom of the rigid pipe sleeve 1 is supported by two support assemblies 4, which are respectively set on both sides of the load-bearing position of the pipeline 2. The support assemblies 4 are used to support the pipeline 2, enhancing its load-bearing capacity so that it can withstand the weight of the vertical barrier wall 6.

[0038] like Figure 3 As shown, the rigid sleeve 1 includes an upper sleeve 11 and a lower sleeve 12. The upper sleeve 11 and the lower sleeve 12 are two symmetrical semi-circular structures. The upper sleeve 11 and the lower sleeve 12 are respectively fastened to the top and bottom of the pipeline 2, which not only provides protection for the pipeline 2, but also enhances the strength of the pipeline 2 and avoids external forces from directly acting on the pipeline 2 and causing damage to it.

[0039] The pipe clamp assembly 3 includes two semi-circular pipe clamp bodies 31, which are fitted onto the ends of the upper pipe sleeve 11 and the lower pipe sleeve 12 to fix them in place. Connecting plates 32 are provided at the connection points of the two pipe clamp bodies 31, and the connecting plates 32 of the two pipe clamp bodies 31 are connected by pipe clamp bolts 33. The design of the pipe clamp assembly 3 allows for easy installation; simply connect the two pipe clamp bodies 31 together using pipe clamp bolts 33.

[0040] The inner side of the pipe clamp body 31 is provided with a step, and the edges of the upper pipe sleeve 11 and the lower pipe sleeve 12 are locked in the step of the pipe clamp body 31.

[0041] like Figure 3 As shown, the support assembly 4 includes two support frames 41, which are respectively supported on both sides of the pipeline 2.

[0042] The support frame 41 includes a base plate 44, a load-bearing plate 42, and a support plate 43. The load-bearing plate 42 is vertically connected to the base plate 44, and the support plate 43 is connected to the top of the load-bearing plate 42. The support plate 43 has an arc-shaped structure. When two support frames 41 are in operation, the two support plates 43 of the two support frames 41 are spliced ​​together to form a complete arc-shaped structure, which together supports the bottom of the pipeline 2. In actual construction, the two support frames 41 can be installed from both sides of the pipeline 2, so that the support plates 43 of the two support frames 41 are spliced ​​together to form a complete arc-shaped structure to support the pipeline 2. The design of the two support plates 43 facilitates installation.

[0043] The load-bearing plates 42 of the two support frames 41 are connected by fastening bolts 45; bolt holes are provided on the base plates 44 of the two support frames 41, and expansion bolts 46 for connecting to the ground are installed in the bolt holes.

[0044] A reinforcing rib 47 is also provided between the load-bearing plate 42 and the base plate 44.

[0045] The rigid sleeve 1 is made of rigid PE.

[0046] HDPE pipe membrane 5 is hot-melt welded onto rigid pipe sleeve 1; HDPE pipe membrane 5 can seal the gaps in rigid pipe sleeve 1; at the same time, after the vertical barrier wall 6 is constructed, the continuity of the vertical barrier wall 6 is ensured, and gaps between the wall and rigid pipe sleeve 1 are avoided, which could lead to pollutant leakage.

[0047] Example 2

[0048] This embodiment, based on the pipeline 2 protection device for underground construction provided in the embodiment, provides a construction method for building a vertical barrier wall 6 underground in a contaminated site, specifically including the following steps:

[0049] Step 1: After confirming the location of underground pipeline 2 by manual trenching, a guide trench is excavated in the vertical direction of pipeline 2. The guide trench is excavated for 5m on each side of pipeline 2, so as to form a 10m protection zone for pipeline 2 in the vertical direction. The bottom width of the trench is about 1.2m.

[0050] Step 2: The excavation depth is determined based on the burial depth of pipeline 2. After excavating until pipeline 2 is exposed, continue excavating downwards to 50cm below pipeline 2.

[0051] Step 3: Fasten the upper sleeve 11 and lower sleeve 12 onto the top and bottom of the pipeline 2 respectively. Install pipe clamp bodies 31 at both ends of the upper sleeve 11 and lower sleeve 12, and connect the two pipe clamp bodies 31 together using pipe clamp bolts 33. Figure 2 As shown.

[0052] Step 4: Wrap the HDPE membrane 5 around the rigid pipe sleeve 1 and fix the HDPE membrane 5 to the rigid pipe sleeve 1 by hot welding to ensure the continuity of the seepage barrier wall.

[0053] Step 5: Install a support frame 41 at the bottom of the guide channel to prevent settlement. The specific operation is as follows:

[0054] First, place the two support frames 41 on both sides perpendicular to the direction of the pipeline 2. Then, move the two support frames 41 towards each other so that the support plates 43 of the two support frames 41 are spliced ​​into a whole arc structure to support the pipeline 2. After splicing, connect the load-bearing plates 42 of the two support frames 41 with fastening bolts 45, and then fix the base plate 44 to the bottom of the trench with expansion bolts 46.

[0055] When setting up the support frame 41, it should be symmetrically set on both sides of the vertical barrier wall 6, that is, two sets of support components 4 should be set on each side of the vertical barrier wall 6, such as... Figure 4 As shown.

[0056] Step 6: High-pressure jet grouting is used to inject clay-bentonite slurry into the guide channel, and the slurry fills the bottom and top of pipeline 2. After the slurry solidifies, it forms a vertical barrier wall 6.

[0057] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of this invention, and should be understood that the scope of protection of this invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on these technical teachings disclosed in this invention without departing from the essence of this invention, and these modifications and combinations are still within the scope of protection of this invention.

Claims

1. A pipeline protection device for use in underground construction, characterized by: Includes a rigid sleeve (1), which is fitted around the pipeline (2); both ends of the rigid sleeve (1) are fixed by two sets of pipe clamp assemblies (3); the bottom of the rigid sleeve (1) is supported by two support assemblies (4), which are respectively set on both sides of the load-bearing position of the pipeline (2).

2. A pipeline protector for use in underground construction according to claim 1, characterized in that: The rigid sleeve (1) includes an upper sleeve (11) and a lower sleeve (12), which are two symmetrical semi-circular structures. The upper sleeve (11) and the lower sleeve (12) are respectively fastened to the top and bottom of the pipeline (2).

3. A pipeline protector for use in underground construction according to claim 2, characterized in that: The pipe clamp assembly (3) includes two semi-circular pipe clamp bodies (31), which are fitted onto the ends of the upper pipe sleeve (11) and the lower pipe sleeve (12) to fix the upper pipe sleeve (11) and the lower pipe sleeve (12); a connecting plate (32) is provided at the connection position of the two pipe clamp bodies (31), and the connecting plates (32) of the two pipe clamp bodies (31) are connected by pipe clamp bolts (33).

4. A pipeline protector for use in underground construction according to claim 3, characterized in that: The inner side of the clamp body (31) is provided with a step, and the edges of the upper sleeve (11) and the lower sleeve (12) are locked in the step of the clamp body (31).

5. The pipeline protector for use in underground construction of claim 1, wherein: The support assembly (4) includes two support frames (41), which are respectively supported on both sides of the pipeline (2); The support frame (41) includes a base plate (44), on which a load-bearing plate (42) is vertically connected, and a support plate (43) is connected to the top of the load-bearing plate (42); the support plate (43) is an arc-shaped structure; when the two support frames (41) support each other, the two support plates (43) of the two support frames (41) are spliced ​​together to form a whole arc-shaped structure, which together support the bottom of the pipeline (2).

6. A pipeline protector for use in underground construction according to claim 5, characterized in that: The load-bearing plates (42) of the two support frames (41) are connected by fastening bolts (45); Bolt holes are provided on the base plates (44) of both support frames (41), and expansion bolts (46) for connecting to the ground are installed in the bolt holes.

7. A pipeline protector for use in underground construction as defined in claim 5, wherein: A reinforcing rib (47) is also provided between the load-bearing plate (42) and the base plate (44).

8. A pipeline protector for use in underground construction according to any one of claims 1 to 7, characterized in that: The rigid sleeve (1) is wrapped with an HDPE pipe membrane (5).

9. A pipeline protector for use in underground construction according to claim 8, characterized in that: The rigid sleeve (1) is made of rigid PE.

10. A pipeline protector for use in underground construction as defined in claim 9, characterized by: The HDPE pipe membrane (5) is hot-melt welded onto the rigid pipe sleeve (1).

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