Prefabricated assembled cable trench and installation method thereof

Abstract

The invention discloses a prefabricated assembled cable trench and an installation method thereof; and the prefabricated assembled cable trench comprises prefabricated cable trench monomers, the cross section of each monomer is U-shaped trench body, the left and the right trench walls are symmetric and gradually shrink to become narrow from down to up, and the bottom is provided with an arc-shaped water drainage tank. The construction method comprises the following steps that: (a) the trench body is arranged on a plain concrete soil bedding layer with the thickness of 100mm, dry hard cement mortar of 30 to 50mm is paved for leveling when in installation, gaps of 5mm are pre-reserved between the cable trench monomers, and waterproof mortar is adopted for jointing; (b) a cable support is directly fixed on the trench wall by a core through bolt and an expansion bolt, grounding flat steel is put on the core through bolt, and both sides are welded with the support; and (c) a brick plastered trench body is adopted for the corner of the cable trench and T-shaped connector. The invention is characterized by convenient construction, good integrity and low cost.

Description

technical field [0001] The invention relates to the manufacture and construction method of a cable trench in a substation, in particular to the manufacture and construction method of a prefabricated assembled cable trench. Background technique [0002] At present, there are two general methods for cable trenches in substations: one is plastered cable trenches on the surface of brick masonry; the other is cast-in-place concrete cable trenches. With the continuous development of power engineering, the requirements for construction period and safe and civilized construction continue to increase. The above two types of cable trenches have shown their shortcomings: [0003] 1) The above-mentioned two types of cable trenches have many on-site construction procedures, long construction periods, and high resource consumption, resulting in site chaos and increased safety hazards, and increased management difficulties, which are not conducive to the development of safe and civilized c...

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Problems solved by technology

[0005] 3) In comparison, due to the high technical requirements of brick plastering, the quality of plastering is generally low, and common quality problems are prone to occur in brick-built cable trenches; cast-in-place reinforced concrete cable trenches are difficult to support the formwork, and the concrete in the trench body Surface flatness is difficult to guarantee;

[0006] 4) The integrity and stability of brick cable trenches are poor, and problems such as inclination, collapse, and deformation often occur;

The above two types of cable trenches can no longer meet the needs of current power engineering development due to high resource consumption, many on-site wet work procedures, long construction period, and poor safety and civilized construction.

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