A three-dimensional imaging method and system for landslides

Abstract

The disclosure provides a three-dimensional imaging method and system of a landslide body. The three-dimensional imaging method of the landslide body comprises the following steps of: using a semi-aeronautical transient electromagnetic method to detect the landslide body to obtain a rough depth and a rough distribution range of the landslide body; dividing the rough depth of the landslide body into a number of step depths within the rough distribution range of the landslide body, using different survey lines at different step depths, performing transient electromagnetic point and high-densityelectrical method point arrangements separately along the survey lines, and using the transient electromagnetic method and a high-density resistivity method correspondingly to obtain a first resistivity value data set and a second resistivity value data set; screening out the resistivity value data corresponding to geological bodies exceeding the depth of 1 / 4 of the survey line length and the geological bodies not exceeding the depth of 1 / 4 the survey line length separately from the first resistivity value data set and the second resistivity value data set to perform imaging analysis and perform fusing to generate a two-dimensional resistivity image; and performing three-dimensional slice result show on the obtained two-dimensional image, so as to provide accurate data information for thetreatment of the landslide body.

Description

technical field [0001] The disclosure belongs to the field of landslides, and in particular relates to a three-dimensional imaging method and system for landslides. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] At present, only one method is often used for landslide surveys, so that the obtained survey data is inaccurate, and the 3D imaging maps obtained are also inaccurate, which affects the disaster management in the later stage; and the inventor also found that most of the existing landslide survey data use The way of manual data collection may cause data errors and loss of data information, which also affects the accuracy of the 3D imaging map. Contents of the invention [0004] In order to solve the above problems, the present disclosure provides a method and system for three-dimensional imaging of landslides, which can improve ...

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Problems solved by technology

[0003] At present, only one method is often used for landslide surveys, so that the obtained survey data is inaccurate, and the 3D imaging maps obtained are also inaccurate, which affects the disaster management in the later stage; and the inventor also found that most of the existing landslide survey data use Manual data collection, which may cause data errors and data information loss, will also affect the accuracy of 3D imaging

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