Assembled cable trench composite structure

Abstract

The utility model discloses a split mounting type cable trench composite structure which comprises a plurality of prefabricated parts connected in sequence, the prefabricated parts are arranged between a cut slope and a road, and each prefabricated part comprises a first concrete body, a second concrete body and a third concrete body which are spliced together; the second concrete body is arranged between the first concrete body and the third concrete body; the first concrete body and the second concrete body are spliced to form a cable trench section, and a side trench section is formed between the third concrete body and the second concrete body; first splicing structures capable of being spliced with the second concrete body to form a complete prefabricated part are arranged below the sides, facing the second concrete body, of the first concrete body and the third concrete body, and second splicing structures corresponding to the first splicing structures are arranged on the two sides, facing the first concrete body and the third concrete body, of the second concrete body. The cable trench is arranged along a highway route, is carried out at the same time as highway engineering construction, has the functions of the cable trench and the side ditch, and avoids repeated excavation, so that the damage to the ecological environment is reduced.

Description

Technical Field

[0001] The utility model relates to an assembled cable trench combined structure and belongs to the technical field of road engineering. Background Art

[0002] When laying cables, the following laying methods are generally selected: ① Direct burial of cables, ② Cable trench laying, ③ Cable pipe laying. Combining the requirements of economy, convenience, safety and post-maintenance, direct burial of cables is cheap, but unsafe. Ordinary cables are easily corroded and inconvenient to maintain. In case of maintenance, the line needs to be excavated again or multiple times, which is not conducive to the protection of the ecological environment. Cable pipe laying is a more conventional laying method, but according to the specification requirements, it is recommended to use cable trenches for 12 to 18 cables.

[0003] Conventional side ditch construction is carried out at the foot of the slope of the road cut. The main construction procedures are: side ditch position layout, pit excavation, pit compaction and finishing, trench concrete pouring, trench maintenance and expansion joint treatment. Conventional cable trench construction method and process: measurement and layout → trench excavation → trench bottom bearing capacity detection → trench bottom acceptance → bottom plate construction → brick-built square ditch wall (and installation of brackets) → wall cement mortar → concrete top → installation of prefabricated reinforced concrete cover plate. Analyzing from their construction procedures, the construction procedures of the two are basically the same, but in the existing construction process, the cable trench and the side ditch are often constructed separately, which requires multiple excavations of the road surface, thereby increasing the construction period and reducing production efficiency. Utility Model Content

[0004] The utility model aims to provide an assembled cable trench combination structure, which combines the cable trench with the side ditch, which not only enables the normal laying of cables, but also has the side ditch drainage function, improves the construction efficiency, and avoids multiple excavations of the road surface.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A assembled cable trench combination structure comprises a plurality of prefabricated parts connected in sequence, wherein the prefabricated parts are arranged between a road cut slope and a highway, and the prefabricated parts comprise a first concrete body, a second concrete body and a third concrete body which are spliced ​​together; the second concrete body is arranged between the first concrete body and the third concrete body; the first concrete body and the second concrete body are spliced ​​together to form a cable trench section, and a side ditch section is formed between the third concrete body and the second concrete body; the first concrete body and the third concrete body both have a first splicing structure below one side of the second concrete body which can be spliced ​​with the second concrete body to form a complete prefabricated part, and the second concrete body is provided with a second splicing structure corresponding to the first splicing structure on both sides of the second concrete body facing the first concrete body and the third concrete body.

[0007] Therefore, by docking and assembling the splicing structures on the first concrete body, the second concrete body and the third concrete body, the installation of a section of cable trench and side ditch combination prefabricated parts can be realized, and then several prefabricated parts can be connected together to realize the installation of a whole cable trench and side ditch combination structure. The connected overall cable trench and side ditch combination structure has both the functions of cable trench placement and side ditch drainage. Therefore, the needs of two projects can be completed in one excavation, which improves construction efficiency while avoiding environmental pollution.

[0008] According to the embodiments of the present invention, the present invention can be further optimized. The following is the technical solution formed after optimization:

[0009] In the utility model, specifically, the first concrete body is arranged close to the highway, and the third concrete body is arranged close to the side slope of the road cut; the first concrete body and the second concrete body are spliced ​​to form a cable trench section, and a side trench section is formed between the third concrete body and the second concrete body.

[0010] Specifically, the first splicing structure includes a first boss arranged on the bottom surface of the first concrete body and the third concrete body, and a first groove arranged on one side of the first boss; the second splicing structure includes a second boss arranged on the bottom surface of the second concrete body and corresponding to the first groove of the first concrete body and the third concrete body, and a second groove arranged corresponding to the first boss of the first concrete body and the third concrete body.

[0011] Specifically, the second bosses are staggeredly arranged on both sides of the second concrete body facing the first concrete body and the third concrete body.

[0012] The first boss on the first concrete body is butted together with the second groove on the second concrete body, and the first groove on the first concrete body is also butted together with the second boss on the second concrete body. Similarly, the third concrete body and the second concrete body are also connected together in this way to assemble into a complete prefabricated part. The first boss and the second boss are butted together to form a complete side ditch bottom surface or cable ditch bottom surface. Since only one boss for splicing is provided on the first concrete body, the third concrete body and the second concrete body, the structure of the first concrete body and the second concrete body is more stable, and the difficulty of assembly is also reduced.

[0013] Specifically, a cover plate is arranged above the prefabricated part, and the cover plate includes a cable trench cover plate arranged above the first concrete body and a side ditch cover plate arranged above the third concrete body. The side ditch cover plate is provided with a water leakage hole.

[0014] Specifically, the upper parts of the first concrete body and the third concrete body are provided with clearance grooves for installing the cable trench cover plate and the side trench cover plate.

[0015] Specifically, the side wall thickness of the first concrete body is greater than the side wall thickness of the third concrete body.

[0016] Under the existing excavation roadbed width, the trench wall on the road side of the cable trench will be used as part of the shoulder. Since the cable trench is close to the road side, it is inevitable that vehicles will roll over it in the later stage. Therefore, the cable trench cover will adopt a load-bearing type cover, which can effectively protect the cable trench. The side ditch adopts a reinforced cover, which can also ensure the temporary rolling of vehicles. At the same time, the water on the road surface flows down through the leaking holes to have a drainage function. Both the load-bearing cover and the reinforced cover can be prefabricated in the prefabrication yard, which can also greatly reduce the difficulty of construction and improve the convenience of construction.

[0017] Specifically, the plurality of prefabricated parts connected together are fixedly connected by cement mortar; the joint surfaces between the first concrete body and the second concrete body, and the joint surfaces between the second concrete body and the third concrete body are connected and fixed by cement mortar.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1) The assembled cable trench structure of the utility model is laid out along the highway route and carried out simultaneously with the highway engineering construction. It has the functions of a cable trench and a side ditch, avoiding multiple excavations, thereby reducing damage to the ecological environment.

[0020] 2) The assembled cable trench combination structure of the utility model has simple assembly steps and only requires small construction equipment to complete the installation. While ensuring the requirements for maintaining access, it also speeds up the construction progress and reduces the overall construction difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model after the prefabricated parts are assembled;

[0022] Figure 2 It is an exploded view of the prefabricated part of the utility model;

[0023] Figure 3 It is a top view of the cover plate of the utility model.

[0024] In the figure

[0025] 1-prefabricated part; 1a-cable trench section; 1b-side ditch section; 11-first concrete body; 12-second concrete body; 13-third concrete body; 14-gap groove; 2-cut slope; 3-highway; 4-first splicing structure; 41-first boss; 42-first groove; 5-second splicing structure; 51-second boss; 52-second groove; 6-cover plate; 61-cable trench cover plate; 62-side ditch cover plate; 621-leakage hole. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following text, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0027] like Figure 1 As shown, the assembled cable trench combination structure of this embodiment includes a plurality of prefabricated parts 1 connected in sequence, the prefabricated parts 1 are arranged between the road cut slope 2 and the highway 3, and the prefabricated parts 1 include a first concrete body 11, a second concrete body 12 and a third concrete body 13 spliced ​​together; the plurality of prefabricated parts 1 connected together are fixedly connected by cement mortar; the splicing surfaces between the first concrete body 11 and the second concrete body 12, and the splicing surfaces between the second concrete body 12 and the third concrete body 13 are connected and fixed by cement mortar. In order to reduce the difficulty of construction, we prefabricate the cable trench and the side ditch combination in the prefabrication yard, and we divide the prefabricated parts 1 into sections of 0.5 meters, each section is composed of three prefabricated concrete bodies, and the gaps between the assembling are filled with cement mortar.

[0028] The second concrete body 12 is arranged between the first concrete body 11 and the third concrete body 13; the first concrete body 11 and the second concrete body 12 are spliced ​​to form a cable trench section 1a, and the third concrete body 13 and the second concrete body 12 form a side trench section 1b, and the two share a trench wall, the cable trench is located close to the road side, and the side trench is arranged along the foot of the mountain. The side wall of the first concrete body 11 close to the highway is used as a shoulder, so it is often crushed by passing vehicles. In order to improve the bearing strength of the first concrete body 11, the side wall of the first concrete body 11 is thickened, and the thickness of the side wall of the first concrete body 11 is greater than the thickness of the side wall of the third concrete body 13.

[0029] In order to facilitate the laying of prefabricated parts, in the present embodiment, the prefabricated parts are divided into three sections of prefabricated concrete bodies that can be assembled together, and the first concrete body 11 and the third concrete body 13 have a first splicing structure 4 below the side facing the second concrete body 12, which can be spliced ​​with the second concrete body 12 to form a complete prefabricated part 1, and the second concrete body 12 is provided with a second splicing structure 5 corresponding to the first splicing structure 4 on both sides of the first concrete body 11 and the third concrete body 13.

[0030] The first splicing structure 4 includes a first boss 41 arranged on the bottom surface of the first concrete body 11 and the third concrete body 13 and a first groove 42 arranged on one side of the first boss 41; the second splicing structure 5 includes a second boss 51 arranged on the bottom surface of the second concrete body 12 and corresponding to the first groove 42 of the first concrete body 11 and the third concrete body 13, and a second groove 52 arranged corresponding to the first boss 41 on the first concrete body 11 and the third concrete body 13. In order to make the weight on both sides of the second concrete body 12 more even and enhance the structural stability after splicing, the second bosses 51 are staggeredly arranged on both sides of the second concrete body 12 facing the first concrete body 11 and the third concrete body 13. In some embodiments, they can also be arranged at the same position on the opposite side, which requires the first concrete body 11 and the second concrete body 12 to adaptively change the relative position of the first bosses. The installation of a section of cable trench and side ditch combination prefabricated parts can be realized by docking and assembling the splicing structures on the first concrete body 11, the second concrete body 12 and the third concrete body 13, and then the installation of a whole cable trench and side ditch combination structure can be realized by connecting several prefabricated parts together. The connected whole cable trench and side ditch combination structure has two functions of cable trench for placing cables and side ditch for drainage.

[0031] A cover plate 6 is arranged above the prefabricated part 1, and the cover plate 6 includes a cable trench cover plate 61 arranged above the first concrete body 11 and a side ditch cover plate 62 arranged above the third concrete body 13, and a water leakage hole 621 is opened on the side ditch cover plate 62. A clearance groove 14 for installing the cable trench cover plate 61 and the side ditch cover plate 62 is opened above the first concrete body 11 and the third concrete body 13.

[0032] Considering the existing width of the excavated roadbed, the trench wall on the road side of the cable trench will be used as part of the shoulder. Since the cable trench is close to the road side, it is inevitable that vehicles will roll over it in the later stage. Therefore, the cable trench cover will adopt a load-bearing type cover, which can effectively protect the cable trench. The side ditch cover adopts a reinforced cover, which can ensure water leakage while also preventing temporary rolling of vehicles. Both the load-bearing cover and the reinforced cover can be prefabricated in the prefabrication yard, which can also greatly reduce the difficulty of construction and improve the convenience of construction.

[0033] The assembled cable trench and side ditch combined structure of the present embodiment combines the cable trench and the side ditch, which not only solves the problem of cable laying, but also allows the side ditch to drain normally. It is particularly suitable for power station road reconstruction projects in mountainous areas. The combination of cable trench and side ditch has obvious advantages in economy, construction convenience, construction period, etc., avoids multiple road excavations, and also protects the ecological environment to a great extent.

[0034] The contents explained in the above embodiments should be understood as these embodiments are only used to more clearly illustrate the present invention, and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art fall within the scope defined by the claims attached to this application.

Claims

1. An assembled cable trench structure, characterized in that: The invention comprises a plurality of prefabricated parts (1) connected in sequence, wherein the prefabricated parts (1) are arranged between a road cut slope (2) and a highway (3), and the prefabricated parts (1) comprise a first concrete body (11), a second concrete body (12) and a third concrete body (13) which are spliced ​​together; the second concrete body (12) is arranged between the first concrete body (11) and the third concrete body (13); the first concrete body (11) and the second concrete body (12) are spliced ​​together to form a cable trench section (1a), and the third concrete body (13) and the second concrete body (12) form a side trench section (1b); The first concrete body (11) and the third concrete body (13) are provided with a first splicing structure (4) on the lower side of the side facing the second concrete body (12) and capable of being spliced ​​with the second concrete body (12) to form a complete prefabricated component (1), and the second concrete body (12) is provided with a second splicing structure (5) corresponding to the first splicing structure (4) on both sides facing the first concrete body (11) and the third concrete body (13).

2. The assembled cable trench structure according to claim 1 is characterized in that: The first splicing structure (4) comprises a first boss (41) arranged on the bottom surface of the first concrete body (11) and the third concrete body (13), and a first groove (42) arranged on one side of the first boss (41); the second splicing structure (5) comprises a second boss (51) arranged on the bottom surface of the second concrete body (12) and corresponding to the first groove (42) of the first concrete body (11) and the third concrete body (13), and a second groove (52) arranged corresponding to the first boss (41) on the first concrete body (11) and the third concrete body (13).

3. The assembled cable trench structure according to claim 2 is characterized in that: The second bosses (51) are arranged alternately on both sides of the second concrete body (12) facing the first concrete body (11) and the third concrete body (13).

4. The assembled cable trench structure according to claim 1 is characterized in that: A cover plate (6) is arranged above the prefabricated component (1), and the cover plate (6) comprises a cable trench cover plate (61) arranged above the first concrete body (11) and a side trench cover plate (62) arranged above the third concrete body (13).

5. The assembled cable trench structure according to claim 4 is characterized in that: The side ditch cover plate (62) is provided with a water leakage hole (621).

6. The assembled cable trench structure according to claim 4 is characterized in that: A clearance groove (14) for installing the cable trench cover plate (61) and the side trench cover plate (62) is provided on the top of each of the first concrete body (11) and the third concrete body (13).

7. The assembled cable trench structure according to claim 1 is characterized in that: The side wall thickness of the first concrete body (11) is greater than the side wall thickness of the third concrete body (13).

8. The assembled cable trench structure according to claim 1 is characterized in that: The plurality of prefabricated parts (1) connected together are fixedly connected by cement mortar; the joint surfaces between the first concrete body (11) and the second concrete body (12), and the joint surfaces between the second concrete body (12) and the third concrete body (13) are connected and fixed by cement mortar.

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