Municipal drainage pipeline groove support blank area reinforcing device

Abstract

The utility model provides a municipal drainage pipeline groove support blank area reinforcing device, a supported groove is provided with an existing pipeline staggered with a newly-built pipeline, the supporting device comprises a plurality of fixing piles, enclosing purlins, a support, a supporting plate, a cross beam and slings, the fixing piles are inserted into the two sides of the groove side by side, the enclosing purlins are fixed on the fixing piles on the two sides of the blank area, and the supporting plate is fixed on the cross beam. The supports are fixed on the fixing piles and the surrounding purlins on the two sides of the blank area in a plane mode, the supporting plates are arranged between the supports and the side walls of the groove and used for surrounding the retaining wall, the cross beams are erected on the side walls of the two sides of the groove and located on the existing pipeline, and the slings are arranged on the cross beams and the existing pipeline in a sleeving mode and used for fixing the existing pipeline. The bracket is fixed on the fixed piles and the enclosing purlins and is matched with the supporting plate, so that the retaining wall can be effectively enclosed, and soil collapse is prevented; the cross beams are erected on the side walls of the two sides of the groove and located above the existing pipeline, the existing pipeline is fixed in cooperation with the slings, displacement and damage of the existing pipeline caused by soil disturbance in the construction process are avoided, and the safety of the existing pipeline is guaranteed.

Description

A reinforcement device for blank areas in the trench support of municipal drainage pipelines Technical Field

[0001] This utility model relates to the field of municipal engineering technology, and in particular to a reinforcement device for blank areas of municipal drainage pipeline trench support. Background Technology

[0002] During the construction of municipal drainage pipelines, it is common to encounter existing pipelines intersecting with the new pipelines within the trench. The presence of these existing pipelines creates gaps in the trench support, where the soil stability is poor and prone to collapse. Traditional trench support methods are insufficient for effectively reinforcing these special areas. During construction, this not only increases the risk of safety accidents, threatening the lives of construction workers, but may also damage existing pipelines, affecting the normal drainage function of the city and the operation of other municipal facilities, increasing construction costs and timelines. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a reinforcement device for blank areas in municipal drainage pipeline trench support. To achieve the above objectives, this utility model adopts the following technical solution:

[0004] A reinforcement device for blank areas in municipal drainage pipeline trenches is disclosed. The trench being reinforced has existing pipelines intersecting with newly constructed pipelines, resulting in blank areas. The device includes several fixed piles, walers, supports, support plates, crossbeams, and slings. The fixed piles are inserted side-by-side into both sides of the trench. The walers are fixed to the fixed piles on both sides of the blank areas. The supports are fixed in a planar manner to the fixed piles and walers on both sides of the blank areas. The support plates are placed between the supports and the trench sidewalls to form a retaining wall. The crossbeams are erected on the sidewalls of the trench and located above the existing pipelines. The slings are fitted onto the crossbeams and the existing pipelines to secure them.

[0005] Furthermore, the fixed piles are Larsen IV sheet piles.

[0006] Furthermore, the waler includes steel brackets and steel purlins, the steel brackets are spaced apart and welded to the fixed piles, and the steel purlins are horizontally arranged and welded to the steel brackets and the fixed piles.

[0007] Furthermore, the walers are provided in at least one layer, erected according to the depth of the trench excavation.

[0008] Furthermore, steel pipe supports are welded between the walers, and the steel pipe supports are spaced apart.

[0009] Furthermore, the support includes horizontal steel pipe braces and vertical steel pipe braces, which are welded in a grid pattern and are both welded to the fixed piles and walers.

[0010] Furthermore, when there is a gap between the steel pipe horizontal brace and the steel pipe vertical brace and the fixed pile, steel bars are welded on them.

[0011] Furthermore, the support plate is made of steel or wood.

[0012] Furthermore, the crossbeam is made of I-beams, and supports are placed at the bottom of both ends of the crossbeam.

[0013] Furthermore, the sling is made of steel cable, and a rubber pad is placed between the sling and the existing pipeline.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By inserting fixed piles on both sides of the trench, a stable foundation support is provided for the entire reinforcement structure. Walers are fixed to the fixed piles on both sides of the blank area, enhancing the connection and integrity between the fixed piles. Supports are fixed to the fixed piles and walers, working in conjunction with the retaining plates to effectively retain the soil wall and prevent soil collapse. Crossbeams are erected on the side walls of the trench above existing pipelines, and, in conjunction with slings, secure the existing pipelines, preventing displacement or damage due to soil disturbance during construction and ensuring the safety of the existing pipelines. This device effectively solves the reinforcement problem of blank areas in trench support, improves construction safety, protects existing pipelines, and reduces construction risks and costs. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 is a top view of the trench structure according to an embodiment of the present invention;

[0018] Figure 2 is a schematic diagram of the AA section structure in Figure 1;

[0019] Figure 3 is a schematic diagram of the cross-sectional structure of BB in Figure 1.

[0020] In the above attached diagram: 1. Trench; 11. Existing pipeline; 12. New pipeline; 2. Fixed pile; 3. Support plate; 4. Waler; 41. Corbel; 42. Steel purlin; 43. Steel pipe support; 5. Bracket; 51. Steel pipe horizontal brace; 52. Steel pipe vertical brace; 6. Beam; 61. Pier; 7. Lifting cable. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0022] As shown in Figures 1-3, this utility model embodiment proposes a reinforcement device for the blank area of ​​a municipal drainage pipeline trench. The trench 1 being reinforced has an existing pipeline 11 that intersects with a newly built pipeline 12, and there is a blank area to be reinforced. The device includes several fixed piles 2, walers 4, supports 5, support plates 3, crossbeams 6, and slings 7. The fixed piles 2 are inserted side by side into both sides of the trench 1. The walers 4 are fixed to the fixed piles 2 on both sides of the blank area. The supports 5 are fixed in a planar manner to the fixed piles 2 and walers 4 on both sides of the blank area. The support plates 3 are set between the supports 5 and the side walls of the trench 1 to form a retaining wall. The crossbeams 6 are erected on the side walls of both sides of the trench 1 and are located above the existing pipeline 11. The slings 7 are sleeved on the crossbeams 6 and the existing pipeline 11 to fix the existing pipeline 11.

[0023] During construction, several fixed piles 2 are first inserted side-by-side into the soil on both sides of the trench 1, firmly rooting them in the foundation to form foundation support points. Next, walers 4 are fixed to the fixed piles 2 on both sides of the empty area, connecting the fixed piles 2 to enhance overall stability. Then, planar supports 5 are fixed to the fixed piles 2 and walers 4 on both sides of the empty area. Subsequently, support plates 3 are installed between the supports 5 and the sidewalls of the trench 1 to form a retaining wall, preventing soil slippage and collapse. For existing pipelines 11 that intersect with the newly constructed pipeline 12 within the trench 1, crossbeams 6 are erected on the sidewalls of both sides of the trench 1 and positioned above the existing pipelines 11. Suspension cables 7 are then fitted onto the crossbeams 6 and the existing pipelines 11, using the tension of the suspension cables 7 to fix the existing pipelines 11 in a stable position, preventing soil disturbance during construction from affecting the existing pipelines 11 and ensuring the safety and stability of the entire construction process.

[0024] In this embodiment, the fixed pile 2 is a Larsen IV sheet pile. Larsen IV sheet piles have a high section modulus and interlock strength, which can provide good resistance to lateral displacement and stability after being inserted into the soil.

[0025] In this embodiment, as shown in Figures 2 and 3, the waler 4 includes steel brackets and steel purlins 42. The steel brackets are spaced apart and welded to the fixed piles 2, and the steel purlins 42 are horizontally arranged and welded to the steel brackets and fixed piles 2. The waler 4 is composed of steel brackets and steel purlins 42. The steel brackets are spaced apart and welded to the fixed piles 2 as a supporting structure, and the steel purlins 42 are horizontally welded to the steel brackets and fixed piles 2, forming a continuous load-bearing system. This structure can transfer the pressure of the soil on the support structure to the fixed piles 2. This improves the bearing capacity of the waler 4 and the connection stability to the fixed piles 2, enabling the entire reinforcement device to better resist soil pressure and ensure the stability of the unsupported area of ​​the trench 1.

[0026] In this embodiment, as shown in Figure 3, the walers 4 are provided in at least one layer, erected according to the excavation depth of the trench 1. By erecting at least one layer of walers 4 according to the excavation depth of the trench 1, the soil pressure increases with the increase in excavation depth. By increasing the number of waler layers 4, the soil pressure can be distributed to different layers of walers 4 and fixed piles 2. This can adapt to the construction needs of trenches 1 at different depths, effectively cope with the changes in soil pressure caused by changes in excavation depth, and ensure that the reinforcement device can play a good support role under various working conditions.

[0027] In this embodiment, as shown in Figure 1, steel pipe supports 43 are welded between the walers 4, and the steel pipe supports 43 are spaced apart. The spaced steel pipe supports 43 welded between the walers 4 can form a stable supporting structure between the walers 4, enhancing the mutual support force and overall stability between the walers 4.

[0028] In this embodiment, as shown in Figure 3, the support 5 includes horizontal steel pipe supports 51 and vertical steel pipe supports 52. The horizontal and vertical steel pipe supports 51 and 52 are welded in a grid pattern and are both welded to the fixed piles 2 and the walers 4. The support 5 is formed by welding the horizontal and vertical steel pipe supports 51 and 52 in a grid pattern, and all are welded to the fixed piles 2 and the walers 4, forming a robust planar frame structure. This structure can effectively transfer soil pressure to the fixed piles 2 and the walers 4, while also possessing good resistance to deformation. This enhances the support of the support 5 for the retaining plate 3, improves the overall strength and stability of the support 5, and better retains the earth wall, preventing soil collapse.

[0029] In this embodiment, steel bars are welded to the horizontal steel pipe support 51 and the vertical steel pipe support 52 when there is a gap between them and the fixed pile 2. When there is a gap between the horizontal steel pipe support 51 and the vertical steel pipe support 52 and the fixed pile 2, the welded steel bars connect the steel pipe to the fixed pile 2, forming a unified whole. This allows the soil pressure borne by the steel pipe to be better transmitted to the fixed pile 2. This ensures an effective connection between the support 5 and the fixed pile 2, enhances the cooperative force-bearing capacity between the support 5 and the fixed pile 2, and improves the stability and reliability of the entire reinforcement device.

[0030] In this embodiment, the support plate 3 is either a steel plate or a wooden board. Steel plates have high strength and rigidity, enabling them to withstand significant soil pressure; wooden boards offer flexibility and cost-effectiveness. Selecting the appropriate support plate 3 based on actual construction needs can effectively retain the earth wall.

[0031] In this embodiment, as shown in Figure 3, the crossbeam 6 is made of I-beam steel, and supports 61 are provided at both ends of the crossbeam 6. The crossbeam 6 is made of I-beam steel, which has high bending strength and load-bearing capacity. The supports 61 at both ends of the crossbeam 6 can evenly transfer the load borne by the crossbeam 6 to the sidewall of the trench 1.

[0032] In this embodiment, the sling 7 is made of steel cable, and a rubber pad is placed between the sling 7 and the existing pipeline 11. The steel cable 7 has high strength and tensile strength, and can withstand the weight of the existing pipeline 11 and the tension during construction. The rubber pad placed between the sling 7 and the existing pipeline 11 has a certain degree of elasticity and cushioning performance, which can reduce the wear and pressure concentration on the existing pipeline 11 caused by the steel cable.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A municipal sewer pipeline trench shoring blank area reinforcement device, the shored trench having an existing pipeline that is staggered with a new pipeline, a shoring blank area being present, characterized by, The system includes several fixed piles, walers, supports, retaining plates, crossbeams, and slings. The fixed piles are inserted side by side into both sides of the trench. The walers are fixed to the fixed piles on both sides of the empty area. The supports are fixed in a planar manner to the fixed piles and walers on both sides of the empty area. The retaining plates are set between the supports and the sidewalls of the trench to form a retaining wall. The crossbeams are erected on the sidewalls of both sides of the trench and located above the existing pipelines. The slings are sleeved on the crossbeams and the existing pipelines to fix the existing pipelines.

2. The reinforcement device for blank areas of municipal drainage pipeline trench support as described in claim 1, characterized in that: The fixed piles are Larsen IV sheet piles.

3. The reinforcement device for blank areas of municipal drainage pipeline trench support as described in claim 2, characterized in that: The waler includes steel brackets and steel purlins. The steel brackets are spaced apart and welded to fixed piles, and the steel purlins are horizontally arranged and welded to the steel brackets and fixed piles.

4. The reinforcement device for blank areas of municipal drainage pipeline trench support as described in claim 3, characterized in that: The walers are provided in at least one layer and are erected according to the depth of the trench excavation.

5. The reinforcement device for blank areas of municipal drainage pipeline trench support as described in claim 4, characterized in that: Steel pipe supports are welded between the walers, and the steel pipe supports are spaced apart.

6. The reinforcement device for blank areas of municipal drainage pipeline trench support as described in claim 5, characterized in that: The support includes horizontal steel pipe bracing and vertical steel pipe bracing, which are welded in a grid pattern and are both welded to the fixed piles and walers.

7. The reinforcement device for blank areas of municipal drainage pipeline trench support as described in claim 6, characterized in that: When there is a gap between the steel pipe horizontal brace and the steel pipe vertical brace and the fixed pile, steel bars are welded on them.

8. The reinforcement device for blank areas of municipal drainage pipeline trench support as described in claim 1, characterized in that: The support plate is made of steel or wood.

9. The reinforcement device for blank areas of municipal drainage pipeline trench support as described in claim 1, characterized in that: The crossbeam is made of I-beams, and supports are placed at both ends of the crossbeam.

10. The reinforcement device for blank areas of municipal drainage pipeline trench support as described in claim 1, characterized in that: The slings are made of steel cables, and rubber pads are placed between the slings and the existing pipelines.

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