CN213693113U

CN213693113U - Assembled cable trench type prefabricated component

Info

Publication number: CN213693113U
Application number: CN202022642332.3U
Authority: CN
Inventors: 钟维军; 金权; 巴明芳; 王建民; 贺智敏
Original assignee: Ningbo Electric Power Design Institute Co ltd
Current assignee: Ningbo Electric Power Design Institute Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-07-13
Anticipated expiration: 2030-11-16

Abstract

The utility model discloses an assembled cable trench type prefabricated component, including the component body, the component body includes through high-strength concrete one time prefabricated fashioned bottom plate and both sides board of pouring, four recesses have been seted up to the interior facade of every curb plate, four two bisymmetry settings of recess are in this curb plate length direction's both sides, every recess is close to the side reason of this curb plate, be provided with in the edge of this curb plate respectively communicating four bolt holes with four recesses, every bolt hole runs through the length direction at the edge of this curb plate, every bolt hole is pre-buried to have a nut, after the construction, adjacent prefabricated component is through two bolt pair connections. The prefabricated member is prefabricated or processed in a factory according to a standardized design, is formed by one-step prefabrication and pouring of high-strength concrete, and is high in strength and rapid and simple and convenient to construct. The reducible job site foundation ditch excavation work load of this prefabricated component effectively shortens construction cycle to reduce the influence of construction to environment and traffic, can effectively reduce the corrosion of bolt in the later stage use simultaneously.

Description

Assembled cable trench type prefabricated component

Technical Field

The utility model relates to a prefabricated component specifically is an assembled cable trench type prefabricated component.

Background

The cable trench is an underground pipeline for laying and replacing electric power or telecommunication cable facilities, is also an enclosure structure of laid cable facilities, and has pipeline structure forms of rectangle, circle, arch and the like. The groove-shaped prefabricated member is one of rectangular cable trenches. The structure of traditional assembled cable trench type prefabricated component includes bottom plate and both sides board, and it is not enough mainly to be reflected in: (1) the outer vertical surfaces of two side plates are respectively provided with 2 grooves for installing bolts, the adjacent prefabricated components are connected through the bolts, the grooves are arranged on the outer sides of the two side plates, the excavation amount of a foundation pit on site is large, the consideration factors are more, the construction is complex, the construction period is long, the soil filling process on the outer side of the outer vertical surface can be carried out after the bolts are installed to connect the adjacent prefabricated components, and the construction period is long; (2) the adjacent prefabricated components are connected through bolts, and some traditional groove-shaped prefabricated components do not have any connecting structure between the adjacent prefabricated components, so that the prefabricated components are easy to loosen before and after installation, and the overall performance is poor; (3) the side plates are of constant-section fixed size and heavy, hoisting, transportation and construction efficiency are affected, and multiple factors are involved in field construction regulation and control.

Disclosure of Invention

The utility model aims to solve the technical problem that, not enough to prior art provides an assembled cable trench type prefabricated component, and reducible job site foundation ditch excavation work load effectively shortens construction cycle to reduce the influence of construction to environment and traffic, can effectively reduce the corrosion of bolt in the later stage use simultaneously.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an assembled cable slot type prefabricated component, includes the component body, the component body include through high-strength concrete one time prefabrication pour fashioned bottom plate and both sides board, every the interior facade of curb plate seted up four recesses, four two bisymmetry settings in this curb plate length direction's both sides, every the recess be close to the side edge of this curb plate, be provided with in the edge of this curb plate with four recesses respectively communicating four bolt holes, every the bolt hole run through the length direction at the edge of this curb plate, every the downthehole pre-buried nut that has of bolt, after the construction, adjacent prefabricated component is through two bolt pair connections.

According to the prefabricated part, the four grooves for mounting the positioning bolts are arranged on the inner vertical surfaces of the two side plates, so that the workload of foundation pit excavation on a construction site can be reduced; on the other hand, the soil filling process on the outer side of the side plate and the connection operation of the adjacent prefabricated parts can be synchronously carried out, so that the construction progress is greatly accelerated, the construction period is effectively shortened, and the influence of construction on the environment and traffic is reduced; in addition, the corrosion of the bolt in the later use process can be effectively reduced.

The prefabricated member is prefabricated or processed in a factory according to a standardized design, is formed by one-step prefabrication and pouring of high-strength concrete, and is high in strength and rapid and simple and convenient to construct. Before construction, all prefabricated components are transported to a project site, after foundation pits are excavated on site, all the prefabricated components are hoisted and placed into the foundation pits, and the front and the back of the adjacent prefabricated components are assembled and connected, so that construction and installation can be completed.

Preferably, one side of the length direction of the member body is provided with a tenon, the other side of the member body is provided with a mortise matched with the tenon, and after construction, the adjacent prefabricated members are connected through a mortise-tenon structure and two bolt pairs. After construction, all the prefabricated parts are connected end to end in sequence through the tenon-and-mortise connection and bolt connection dual connection positioning mode, construction is convenient, connection and positioning between the adjacent prefabricated parts are firm, loosening is prevented, the front and rear connection assembly effects of the prefabricated parts are guaranteed, and the overall performance of a cable trench is improved. In addition, the mortise and tenon structure has a good waterproof effect.

Furthermore, the tenon and the mortise are respectively arranged along the side edges of two sides of the component body so as to ensure the tenon-and-mortise connection strength.

Preferably, a water stop strip is arranged at the joint of the adjacent prefabricated parts in a pressing mode. During construction, water stop bars are placed at the joints of the adjacent prefabricated components, and then the bolts are locked, so that the tenons and the mortises are tightly matched and connected and the water stop bars are tightly pressed, and the integral waterproof performance of the cable trench is ensured to meet the requirement.

Preferably, a water collecting groove is formed in the middle of the upper surface of the bottom plate, and the water collecting groove penetrates through the length direction of the bottom plate. The water collecting tank is used for facilitating water drainage in the ditch.

Preferably, the outer vertical surface of each side plate is a vertical plane, and the inner vertical surface is an inclined surface inclined from top to bottom to the inner side of the member body. The side plates adopt the top-down continuous variable cross-section design, so that the dead weight of the prefabricated part can be reduced on the premise of ensuring the sufficient strength of the prefabricated part, and the hoisting, transportation and construction are facilitated.

Preferably, a concave platform is arranged at the upper end of the inner vertical surface of each side plate, and the concave platform penetrates through the length direction of the side plate. The concave platform arranged at the upper ends of the inner vertical surfaces of the two side plates is convenient for placing and positioning the cover plate.

Compared with the prior art, the utility model has the advantages of as follows: the utility model discloses prefabricated component is according to standardized design, at mill's prefabrication or processing component, once prefabricated the shaping of pouring by high-strength concrete, and intensity is high, and the construction is swift simple and convenient. According to the prefabricated part, the four grooves for mounting the positioning bolts are arranged on the inner vertical surfaces of the two side plates, so that the workload of foundation pit excavation on a construction site can be reduced; on the other hand, the soil filling process on the outer side of the side plate and the connection operation of the adjacent prefabricated parts can be synchronously carried out, so that the construction progress is greatly accelerated, the construction period is effectively shortened, and the influence of construction on the environment and traffic is reduced; in addition, the corrosion of the bolt in the later use process can be effectively reduced.

Drawings

FIG. 1 is a front view of a member body in an embodiment;

fig. 2 is a sectional view taken along line a-a of fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

The prefabricated component of the assembled cable groove type in embodiment 1, as shown in fig. 1 to 2, includes a component body 1, the component body 1 includes a bottom plate 2 and two side plates 3 which are formed by casting high-strength concrete through one-step prefabrication, a water collection tank 21 is disposed in the middle of the upper surface of the bottom plate 2, the water collection tank 21 penetrates through the length direction of the bottom plate 2, four grooves 31 are disposed on an inner vertical surface 35 of each side plate 3, the four grooves 31 are symmetrically disposed on two sides of the length direction of the side plate 3 in pairs, each groove 31 is close to the side edge of the side plate 3, four bolt holes 32 respectively communicated with the four grooves 31 are disposed in the edge of the side plate 3, each bolt hole 32 penetrates through the length direction of the edge of the side plate 3, a nut (not shown in the figure) is pre-buried in each bolt hole 32, and after construction.

In embodiment 1, a tenon 11 is arranged on one side of the member body 1 in the length direction, a mortise 12 matched with the tenon 11 is arranged on the other side of the member body 1, the tenon 11 and the mortise 12 are respectively arranged along the side edges of two sides of the member body 1, after construction, adjacent prefabricated members are connected through a tenon-and-mortise structure and two bolt pairs, and a water stop bar (not shown in the figure) is arranged at the joint of the adjacent prefabricated members in a compression manner.

The prefabricated component of the assembled cable trench type in embodiment 2 is different from embodiment 1 in that in embodiment 2, an outer vertical surface 34 of each side plate 3 is a vertical plane, and an inner vertical surface 35 is an inclined surface inclined from top to bottom to the inner side of the component body 1; the upper end of the inner vertical surface 35 of each side plate 3 is provided with a concave platform 36, and the concave platform 36 penetrates through the length direction of the side plate 3.

The prefabricated component is prefabricated or processed in a factory according to a standardized design, is formed by one-step prefabrication and pouring of high-strength concrete, and is high in strength and rapid and simple and convenient to construct. Before construction, each prefabricated part is transported to a project site, after a foundation pit is excavated on site, during construction, each prefabricated part is only required to be hoisted and placed into the foundation pit, a water stop bar is placed at the joint of the adjacent prefabricated parts, and then the bolt 33 is locked, so that the tenon 11 and the mortise 12 are tightly matched and connected and tightly pressed on the water stop bar, the adjacent prefabricated parts are assembled and connected front and back, the soil filling process outside the side plate 3 and the connection operation of the adjacent prefabricated parts can be synchronously carried out, the construction progress is greatly accelerated, the construction period is effectively shortened, and the influence of construction on environment and traffic is reduced.

Claims

1. The utility model provides an assembled cable trench type prefabricated component, its characterized in that, includes the component body, the component body include through high-strength concrete one-time prefabrication pouring fashioned bottom plate and both sides board, every the interior facade of curb plate seted up four recesses, four recess bisymmetry settings in this curb plate length direction's both sides, every the recess be close to the side edge of this curb plate, be provided with in the edge of this curb plate with four recesses respectively communicating four bolt holes, every the bolt hole run through the length direction at the edge of this curb plate, every the bolt hole in pre-buried nut, after the construction, adjacent prefabricated component is through two bolt pair connections.

2. The prefabricated component of claim 1, wherein a tenon is disposed on one side of the component body in the length direction, and a mortise matched with the tenon is disposed on the other side of the component body, and after construction, the adjacent prefabricated components are connected through a mortise and tenon structure and two bolt pairs.

3. The prefabricated member for an assembled cable trench according to claim 2, wherein the tenon and mortise are respectively provided along side edges of both sides of the member body.

4. An assembled cable trough-type prefabricated part according to claim 2 or 3, wherein a water stop strip is arranged at the joint of the adjacent prefabricated parts in a pressing mode.

5. The prefabricated unit of claim 1, wherein a water collection groove is formed in a central portion of an upper surface of the base plate, and the water collection groove extends along a length direction of the base plate.

6. The prefabricated member of claim 1, wherein each of said side plates has an outer surface which is a vertical plane, and an inner surface which is a slope inclined from top to bottom toward an inner side of said member body.

7. The prefabricated unit of claim 1, wherein each side plate has a recessed portion formed at an upper end of an inner surface thereof, the recessed portion extending along a longitudinal direction of the side plate.