Construction method of foundation prefabrication for transmission line engineering

Abstract

The invention provides an electric transmission line project foundation prefabricated construction method. The electric transmission line project foundation prefabricated construction method comprisesthe steps of a construction preparation stage, foundation prefabricated construction, prefabricated foundation transporting, excavation of a foundation pit and construction of an under layer, foundation hoisting in position, foundation backfilling and the like. The construction preparation stage comprises the steps of field selection, manufacturing of a movable type construction platform, manufacturing of a template, manufacturing of a suspension center pre-buried piece, hoisting of a steel wire rope and the like. The foundation prefabricated construction comprises the steps of preparation, mounting of inserting angle iron, rib braiding and template erecting, pouring, foundation identification, transferring and maintenance of the prefabricated foundation, quality detection of raw materials and concrete and the like. The prefabricated field in the construction method is fixed, the reshipment quantity of the construction raw materials, equipment and instruments are reduced, wear and loss in the reshipment process of the materials and the instruments are reduced, interference of outside factors is eliminated, resource investment is reduced, the influence of terrain to construction iseliminated, the operation frequency and time in the foundation pit are decreased, construction potential safety hazards are lowered, and the labor condition is improved.

Description

[0001] 1. Technical field: [0002] The invention relates to a prefabricated construction method for a power transmission line engineering foundation, and belongs to the technical field of power transmission line engineering construction. [0003] 2. Background technology: [0004] In the construction of transmission line engineering, whether the foundation construction can be successfully completed is the key to whether the entire project can be completed on schedule. During the foundation construction process, a series of processes such as pit excavation, cushioning, reinforcement, formwork support, pouring, formwork removal, and backfilling will take at least 4 days to complete. During construction during the rainy period, there are certain difficulties in transporting raw materials and equipment required for foundation construction such as steel bars, ready-made concrete (or gravel, cement, water), mixers, and personnel entering and leaving the site; After severe water acc...

AI Technical Summary

Problems solved by technology

During construction during the rainy period, there are certain difficulties in transporting raw materials and equipment required for foundation construction such as steel bars, ready-made concrete (or gravel, cement, water), mixers, and personnel entering and leaving the site; After severe water accumulation or even landslide in the foundation pit, a lot of manpower and material resources need to be invested for rework; when the channel coordination is difficult, it is easy for a large number of construction workers to stop working, especially when there is a blockage during the pouring process, not only need to stop work and wait for the channel Coordination and once the concrete pouring is interrupted for too long, the quality of the concrete will inevitably decline, and even the foundation being poured needs to be scrapped and re-constructed, causing serious losses

Therefore, during the construction period, external factors such as weather and channel coordination often lead to long construction times and additional human and material resources, which in turn affect the entire construction period and cause adverse consequences such as increased construction costs.