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Economic analysis method based on omni-directional unequal-length leg tower

An economical analysis, all-round technology, applied in the direction of towers, building types, buildings, etc., can solve the problem of not considering the design of long and short legs, and achieve the effect of improving environmental protection and saving project investment.

Active Publication Date: 2016-03-30
STATE GRID CORP OF CHINA +2
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  • Description
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AI Technical Summary

Problems solved by technology

However, in the "General Design of Transmission Lines for Power Transmission and Transformation Projects of State Grid Corporation" in the same sub-module of 110kV in mountainous areas and flat areas, the same set of tower series is used, and the design of long and short legs is not considered.

Method used

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  • Economic analysis method based on omni-directional unequal-length leg tower
  • Economic analysis method based on omni-directional unequal-length leg tower
  • Economic analysis method based on omni-directional unequal-length leg tower

Examples

Experimental program
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Effect test

Embodiment approach

[0037] Economical Analysis of Using Two Forms of Connecting Legs for Different Terrain Slopes

[0038] 1. Main compilation principles and fee collection basis

[0039] 1) The project division and charging standards shall be implemented in the "Notice on Issuing the "Budget Preparation and Calculation Standards for Power Grid Project Construction" and "Budget Preparation and Calculation Standards for Thermal Power Project Construction" by CECJJ [2007] No. 139; Zong Zao [2009] No. 3 "Notice on Adjusting Power Project Construction Budget Items and Calculation Standards".

[0040] 2) The quota adopts the "Notice on Issuing the Budget Quota for Electric Power Construction Projects (2006 Edition)" issued by China Electricity Union Technical Economics [2007] No. 15; 2006 Edition) Supplement "Notice".

[0041] 3) The adjustment of regional wage subsidies shall be implemented in Dianding Zongzao [2007] No. 12 "Notice on Publishing Wage Subsidies in Various Regions". The wage subsidy...

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Abstract

The invention relates to an economical efficiency analyzing method based on a comprehensive unequal length spliced leg iron tower. The economical efficiency analyzing method is characterized by comprising the following steps that (S01) influences of comprehensive unequal length spliced legs on the weight and foundation force of the iron tower are analyzed; (S02) oriented to different terrain gradients, the difference of work amounts when the two spliced leg modes of long and short legs and flat legs is analyzed; (S03) oriented to different terrain gradients, the economical efficiency of adopting the two spliced leg modes of the long and short legs and the flat legs is analyzed. The economical efficiency analyzing method based on the comprehensive unequal length spliced leg iron tower can effectively provide a scientific and reasonable reference standard for selecting the iron tower spliced leg mode, the suitable iron tower spliced leg mode can be selected more scientifically and more conveniently, and thus the effects of saving project investment and improving environment friendliness are achieved.

Description

technical field [0001] The invention relates to an economical analysis method in power system line engineering, in particular to an economical analysis method based on omni-directional iron towers with unequal lengths. Background technique [0002] The mountains (including hills) in Fujian Province are large and widely distributed, accounting for more than 90% of the total area of ​​the province. The plains are small in size and scattered, mainly in the lower reaches of the Minjiang River, Jiulongjiang River, Jinjiang River, Mulan River and other rivers and on both sides of the same land basin along the river. The largest Zhangzhou Plain covers an area of ​​only 566.7 square kilometers. Therefore, in the design of transmission lines in Fujian Province, how to adapt to the characteristics of mountainous areas has always been the focus of line design. [0003] In June 2010, a long-lasting and heavy rainstorm occurred in the northwestern part of Fujian Province. The rainfall ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04H12/08
Inventor 柯美锋陈立闯
Owner STATE GRID CORP OF CHINA
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