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A distributed flexible edge intelligent early warning system and method for karst ground subsidence

A forecasting system, distributed technology, applied in the fields of alarms, electromagnetic measurement devices, machine learning, etc., can solve problems such as positioning, timing, and quantification

Active Publication Date: 2022-06-21
NANJING UNIV
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Problems solved by technology

[0006] Purpose of the invention: Aiming at the problems existing in the above-mentioned background technology, the present invention provides a distributed flexible edge intelligent early warning and forecasting system and method for karst ground subsidence to solve the "positioning, timing, Quantitative" bottleneck problem

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  • A distributed flexible edge intelligent early warning system and method for karst ground subsidence
  • A distributed flexible edge intelligent early warning system and method for karst ground subsidence
  • A distributed flexible edge intelligent early warning system and method for karst ground subsidence

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[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] The invention provides a distributed flexible edge intelligent early warning and forecasting method and system for karst ground collapse, and the specific application scenarios are as follows: image 3 shown.

[0037] The intelligent early warning and forecasting system adopted by the present invention is as follows: Figure 7As shown, it includes a polymer measuring tube, a flexible conductive film, a signal processing module, a multi-source data fusion module and an early warning and forecasting module. The polymer measuring tube is laid below the critical depth of the soil hole by horizontal directional drilling. The surface of the polymer measuring tube is provided with multiple conductive films and metal electrodes on both sides. The electrodes are connected to the signal acquisition and processing module through wires. The signal processing module obtain...

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Abstract

The invention discloses a distributed flexible edge intelligent early warning and forecast system and method for karst ground subsidence. The system includes a polymer measuring tube, a flexible conductive film, a signal processing module, a multi-source data fusion and an early warning and forecast module; The measuring pipe is laid below the critical depth of the karst soil cave by horizontal directional drilling, and the surface is covered with multiple flexible conductive films and metal electrodes on both sides; the metal electrodes are connected to the signal processing module through wires; the signal processing module acquires Measure the resistance signal of each flexible conductive film on the measuring tube and calculate the bending and shearing deformation of the measuring tube, and estimate the soil deformation field distribution around the measuring tube and the boundary of the soil hole through the multivariate Taylor series expansion Kalman filter algorithm in the multi-source data fusion module, The soil cave depth and boundary development rate are predicted by the Bayesian optimized random forest Kalman filter algorithm in the early warning and prediction module. When the predicted soil cave development depth reaches the critical depth of the soil cave, an early warning signal of karst ground subsidence is triggered.

Description

technical field [0001] The invention relates to the technical field of geological disaster monitoring and early warning, and mainly relates to a distributed flexible edge intelligent early warning and forecast system and method for karst ground collapse. Background technique [0002] Ground subsidence is one of the most widely distributed and most frequent geological disasters in China. The widespread distribution of karst strata is one of the main reasons for the frequent occurrence of ground collapse in my country. According to statistics, the karst area in my country accounts for more than 1 / 3 of the country's land area. The filling of the overlying soil in the underground karst cave causes the gradual development of the soil cave in the overburden layer, and eventually leads to the overall collapse of the roof of the soil cave to the surface, which is the most important damage form of karst ground collapse. Urban karst ground subsidence often occurs in densely populated...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B21/10G01B7/16E02D1/08G06N20/00
CPCG08B21/10G01B7/18E02D1/08G06N20/00
Inventor 张巍马佳骏辛韫潇朱雨辰许文涛马建朱鸿鹄
Owner NANJING UNIV
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