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从施工材料、施工方式、施工质量、施工管理和安全环保等方面综合考虑

网址:www.dianli.au08.cn  2021-04-27  作者:admin    阅读:

预制式电缆沟是基于以上两种施工方式,从施工材料、施工方式、施工质量、施工管理和安全环保等方面综合考虑,提出的一种从各方面满足现代电力建设要求的一种新型施工方案[2]。预制式电缆沟由一个一个单体组成,每个单体的断面为“U”型,横向宽约60~80cm,“U”型底部设有一个半圆形排水槽,有利于沟道中积水的排出,侧壁上预制膨胀螺栓孔用于固定支架和焊接接地扁钢。施工时,只需要先挖好路径坑道,现场具备施工条件时,预制式电缆沟入场,在之前挖好的路径坑中做好素混凝土垫层,使每个电缆沟单体基本保持水平,单体之间预留3~5cm缝隙,用于防水砂浆勾缝,敷设过程中用水泥砂浆调节平整,上面铺设盖板,施工完成。这种施工方式在市区线路迁改项目中应用尤为明显,具有施工速度快、整体性好、环保等优点。
Based on the above two construction methods, the prefabricated cable trench is a new construction scheme which meets the requirements of modern power construction from various aspects, including construction materials, construction methods, construction quality, construction management and safety and environmental protection. The prefabricated cable trench is composed of a single body. The cross section of each unit is "U" shape, with a transverse width of about 60-80cm. A semicircular drainage channel is set at the bottom of the "U" shape, which is conducive to the drainage of water in the channel. The prefabricated expansion bolt holes on the side wall are used to fix the support and weld the grounding flat steel. During the construction, only the path tunnel needs to be excavated first. When the construction conditions are met, the prefabricated cable trench shall enter the site, and the plain concrete cushion shall be made in the previously excavated path pit to keep each cable trench unit basically horizontal. A gap of 3 ~ 5cm shall be reserved between the monomer for waterproof mortar pointing. During the laying process, the cement mortar shall be used for leveling, and the cover plate shall be laid on the surface to complete the construction. This construction method is particularly obvious in the urban line relocation project, with the advantages of fast construction speed, good integrity and environmental protection.

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