Water and soil conservation method of electric power transmission line engineering construction

Abstract

The invention discloses a water and soil conservation method of an electric power transmission line engineering construction, belongs to the technical field of agriculture, and in particular, relates to the water and soil conservation method of the electric power transmission line engineering construction. The method comprises the following steps: (1) optimizing item design and reducing water and soil loss: a path is optimized; a tower position is optimized; the selection of the tower position in such places of easily causing the water and soil loss as cragged slopes or channel river sides is prevented through a line-position combining mode by fully using the advantages of aerial photo path selection in field positioning; an universal iron tower with different long legs, a high-low foundation and a deep-shallow foundation are used, so that the excavated volume of earthworks, the destruction of vegetation and the water and soil loss can be reduced to the greatest extent; the excavated volume is reduced by a slope folding method in the slope treatment; the optimal design is performed for slope toes of upper slopes; the distances from the slope toes of the upper slopes to a foundation pit in the inner side of the tower position are reduced by combining with actual conditions of the site construction; and the slope toes forward move to reduce a large quantity of the earthworks.

Description

technical field [0001] The invention belongs to the field of agricultural technology, in particular, the invention relates to a water and soil conservation method for power transmission line engineering construction. Background technique [0002] According to the economic and social development, the electricity market demand growth rate is expected to reach 8% during the forecast analysis period of the Electric Power Co., Ltd. [0003] In 2005, the power consumption was 59 billion kwh, with a maximum load of 400MW. Fuzhou power grid is an important load center of the province's power grid and one of the areas with relatively stable power market demand. In 2000, the power consumption was 64.7 billion kwh, with a maximum load of 1178MW. The annual load is 1920MW, and the electricity consumption is 10 billion kwh. [0004] Quanzhou Putian Fuzhou 500kV line project, this project is a new single-circuit AC 500kV line, the construction unit is Fujian Electric Power Co., Ltd., the...

AI Technical Summary

Problems solved by technology

[0007]The route of this project passes through mostly mountainous and hilly landforms with high mountains and steep slopes, which have great potential instability. Larger impacts may cause water and soil loss hazards: vegetation damage reduces the function of water and soil conservation in mountains. A large number of discarded earth and rocks are dumped along the slope. Under the impact of heavy rain, geological disasters such as landslides and mud-rock flows will easily occur, posing a threat to the lives and properties of downstream people. Vegetation damage The exposed surface and the green hills formed by the abandoned soil and rock piles will affect the natural landscape. The amount of water and soil loss in the abandoned soil and rock piles will be large, and the sediment produced will enter the downstream farmland, riverbed and reservoir with the water from the hillside, destroying farmland and affecting agricultural production. Silted river course - reduces reservoir storage capacity, affects river and reservoir water storage and flood control capacity. Bare surface, especially abandoned earth and rock piles, is prone to cut trenches and trace back erosion, endangering the safety of tower foundations