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Monitoring and early warning method of transmission tower under rainfall-induced landslide disaster

A technology for transmission towers and disasters, which is applied in the field of monitoring and early warning of transmission towers under rainfall-induced landslide disasters, and can solve problems such as reduced measurement accuracy and loss of locks

Active Publication Date: 2019-11-22
国家电网公司西南分部 +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the signals released by GPS will be subject to irregular short-term interference, which will cause the carrier phase difference technology (Real-time kinematic, RTK) of GPS to often lose lock, which greatly reduces the measurement accuracy.

Method used

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  • Monitoring and early warning method of transmission tower under rainfall-induced landslide disaster
  • Monitoring and early warning method of transmission tower under rainfall-induced landslide disaster
  • Monitoring and early warning method of transmission tower under rainfall-induced landslide disaster

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Embodiment Construction

[0077] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0078] Such as figure 1 As shown, the present invention discloses a monitoring and early warning method for transmission towers under rainfall-induced landslide disasters, including the following steps:

[0079] S1. Obtain historical rainfall information and rainfall forecast information, and determine the rainfall impact factor F based on the probability density function of rainfall-induced landslides R grade;

[0080] S2. Obtain the relative positional relationship between the landslide body and the transmission tower. If the transmission tower is located on the upper side of the landslide, determine the initial state influence factor F of the transmission tower. G ; If the transmission tower is located at the lower side of the landslide, determine the damage difference factor F of the transmission tower T ;

[0081] S3. If the transmission tower is loc...

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Abstract

The invention discloses a monitoring and early warning method of a transmission tower under a rainfall-induced landslide disaster. The method comprises a step of obtaining historical rainfall information and rainfall forecast information and determining the level of a rainfall impact factor FR, a step of determining an initial state impact factor FG of the transmission tower if the transmission tower is located on an upper side of a landslide body, a step of determining a damage differential impact factor FT of the transmission tower if the transmission tower is located on a lower side of thelandslide body, a step of calculating a danger index of the transmission tower, and a step of determining a landslide hazard warning level of the transmission tower based on the danger index F of thetransmission tower and issuing disaster warning information. The invention provides a new technical method for the failure early warning of the transmission tower induced by a rainfall landslide, andthe accuracy and effectiveness of the early warning are improved.

Description

technical field [0001] The invention relates to the technical field of power transmission equipment safety, in particular to a monitoring and early warning method for power transmission towers under rainfall-induced landslide disasters. Background technique [0002] In recent years, under the general trend of global climate change, the frequency and intensity of severe weather and extreme natural disasters tend to increase, and power grids exposed to the atmospheric environment are more likely to fail or even suffer damage, which has a greater impact on public life and social economy. big impact. Especially in Southwest China, due to torrential rain and continuous heavy rainfall, hills, ridges and steep slopes are prone to geological disasters such as rock landslides and debris flows. [0003] As an important part of the transmission network, high-voltage transmission towers will inevitably be erected on ridges, steep slopes and other areas, and may suffer short-term heavy ...

Claims

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Application Information

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IPC IPC(8): G08B21/10G08B21/18G08B25/10G08B29/18
CPCG08B21/10G08B21/182G08B25/10G08B29/188
Inventor 蒋航王建钟璐熊小伏张茜陈强熊俊冯长有马超
Owner 国家电网公司西南分部
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