Subarea assessment and early warning method and system of geological disasters of power transmission lines

Abstract

The invention provides a subarea assessment and early warning method and system of geological disasters of power transmission lines. The method comprises the following steps: obtaining a plurality ofindex subarea distribution maps based on assessment index data of risk assessment areas of the geological disasters of the power transmission lines and pre-divided a plurality of subareas; performingcalculation on the index subarea distribution maps on a geographical information system by using a risk assessment model to obtain a risk distribution map of the geological disasters of the power transmission lines; and performing power transmission line area risk assessment and power transmission line tower risk assessment in the risk distribution map of the geological disasters of the power transmission lines based on the assessed area. According to the subarea assessment and early warning method provided by the invention, the assessed area is divided into a plurality of subareas, respectiverisk assessment systems are respectively determined according to the geological environment features of the subareas, differentiated subarea assessment is carried out, and especially for the risk assessment of large-area geological disasters, the assessment results can be more accurate.

Description

technical field [0001] The invention relates to the field of risk assessment of transmission lines, in particular to a method and system for regional assessment and early warning of geological disasters in transmission lines. Background technique [0002] The transmission line is an important part of the power grid, and the safe and stable operation of the transmission line directly affects the stability of the power grid and the reliability of power supply. With the rapid development of the economy, the demand for electricity continues to grow, and the construction of electricity is developing accordingly. The transmission line covers a wide range and has a long transmission distance. The impact of various construction and mining activities can easily lead to deformation and damage of towers and foundations, threatening the safe operation of the line. According to the statistical results of the Ministry of Land and Resources on China's six types of hidden dangers of geolog...

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Problems solved by technology

[0003] However, there are many types of geological disasters, and the occurrence factors and processes are complex. The causes are not only related to the rainfall in the area, but also closely related to many factors such as topography, rock mass structure, vegetation status, and human activities. It is unscientific to use one set of risk assessment system for early warning of regional risk assessment. How to conduct more accurate risk assessment of geological hazards in transmission lines needs to be solved urgently

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