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Reinforced concrete assembly type cable duct and manufacturing method

A reinforced concrete and cable trench technology, which is applied in cable installation, ground cable installation, cable laying equipment and other directions to achieve the effect of reducing the weight of the hoisting unit, convenient and quick installation, and improving the degree of processing.

Inactive Publication Date: 2015-03-25
ZHEJIANG ELECTRIC POWER DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a method that focuses on solving the problems of transportation space, installation weight, joint point waterproof, longitudinal slope, etc., without the need for secondary internal painting and slope finding work; to achieve convenient transportation and splicing. Reinforced concrete prefabricated cable trench and its manufacturing method that are simple, waterproof, reliable, smooth drainage, and can be assembled on site

Method used

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  • Reinforced concrete assembly type cable duct and manufacturing method
  • Reinforced concrete assembly type cable duct and manufacturing method
  • Reinforced concrete assembly type cable duct and manufacturing method

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Embodiment

[0037] Embodiment: What the present invention adopts is two-piece type assembling scheme, and left and right are symmetrical, and its processing drawing sees figure 1 , 2 As shown, the weight of a single piece is 0.6 tons, and it can be stacked during transportation and installation, occupying a small amount of transportation and storage space, and can transport 50 tons at a time, forming a 25m long ditch. Rebar connection sleeves are reserved on the bottom plate, and Φ14 short steel bars are inserted during installation for positioning and connection. A 4x40 groove is reserved on the wall of the cable trench and the bottom plate, and the water-swellable waterproof strip is inserted during installation to prevent water seepage at the connection. There is a 1 / 4 circle in the prefabricated ditch unit, and the two pieces are spliced ​​to form a 1 / 2 circle with a radius of 50mm. The water level difference is used to achieve longitudinal drainage, and there is no need for secondar...

specific Embodiment approach

[0038] The implementation steps of the cable trench of the present invention are: factory prefabrication → positioning and setting out → earthwork excavation → cushion layer construction → hoisting in place → pouring connection nodes → fixing cable supports → laying cables → laying slabs.

[0039] The invention is applicable to projects requiring prefabricated cable trench arrangement, such as substations, converter stations, and power plants.

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Abstract

A reinforced concrete assembly type cable duct is formed by connecting sections of U-shaped duct bodies, each U-shaped duct body is formed by splicing two half L-shaped duct bodies in left-and-right symmetry, a plurality of steel bar connection sleeves arranged inwards respectively are correspondingly and transversely reserved on the spliced edges, at the spliced parts, of bottom plates, and when every two half L-shaped duct bodies are spliced together, short steel bars performing the functions of positioning and connecting are inserted in the steel bar connection sleeves corresponding to the two half L-shaped duct bodies. The manufacturing method comprises the steps of factory fabrication, positioning paying off, earth excavation, bedding layer construction, in-place hoisting, connecting joint pouring, cable support fixation, cable laying and cover plate laying. The reinforced concrete assembly type cable duct has the advantages of being convenient to convey, easy and convenient to splice, reliable in water resistance, smooth in water drainage, capable of being assembled on site and the like.

Description

technical field [0001] The invention relates to a reinforced concrete assembled cable trench and a manufacturing method thereof, which are suitable for power transmission and transformation projects such as substations, converter stations, power plants and the like that require the arrangement of assembled cable trenches. Background technique [0002] Cable trenches are an integral part of substations. With the increasing degree of modular construction of domestic substations, the modularization of cable trenches has been further put on the agenda. Due to the complex construction process and long construction period of the traditional cable trench, and the cable trench is often vertical and horizontal across the entire substation, improving the construction process of the cable trench can quickly increase the construction progress of the project. [0003] The design of prefabricated smart substations should follow the construction principles of "standardized design, factory ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G9/02H02G1/06E02D29/045
Inventor 甘伟昌吴亮黄达余安春秀梅狄克沈青松况骄庭
Owner ZHEJIANG ELECTRIC POWER DESIGN INST
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