Remote sensing quick surveying method of landslide glide quantity parameter
A technology of remote sensing and parameters, applied in measuring devices, surveying and navigation, height/horizontal measurement, etc., can solve problems such as difficulty in engineering construction and cost accounting, and inability to measure landslide parameters, so as to save and prevent risks, The effect of saving treatment cost and high reliability
Active Publication Date: 2012-09-12
CHINA RAILWAY DESIGN GRP CO LTD
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However, this method can only perform simple judgment and qualitative analysis on landslides, and cannot measure the parameters of landslide sliding volume, so it is difficult to meet the requirements of engineering construction and cost accounting
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[0032] The technical solution of the present invention will be further described in conjunction with the accompanying drawings. like figure 1 As shown in the present invention, a remote sensing rapid survey method for landslide volume parameters, the technical steps include: obtaining two phases of remote sensing images and digital elevation data S1 before and after the landslide slide, constructing a three-dimensional remote sensing interpretation theme and delineating the landslide perimeter S2 , Judging whether the landslide body is completely separated from the landslide perimeter after sliding S3, obtaining the trailing edge of the landslide body and the shear outlet information S4, calculating the digital elevation model of the underlying sliding bed surface of the part of the landslide body that has not separated S5, obtaining the underlying sliding surface of the part of the landslide body that has completely separated Bed surface digital elevation model S6, extract la...
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The invention discloses a remote sensing quick surveying method of landslide glide quantity parameter. The method is characterized by comprising the following steps: obtaining remote sensing images and digital altitude data in two stages around landslide glide, constructing three-dimensional remote sensing interpretation theme, demarcating landslide perimeter, judging the theme according to three-dimensional sensing after slide, judging whether a landslide body completely breaks away from the periphery of the landslide after the slide, extracting a digital altitude model on the surface of the landslide before slide on yes judgment, obtaining back edge and shearing opening information of a landslide body and calculating a digital altitude model on the surface of an underlying sliding bed of the portion of the landslide body which does not break away from the landslide body on no judgment, extracting the digital altitude model on the surface of the landslide around the slide, and conducting geological information system space analysis on extracted digital altitude model on the surface of the landslide around the slide to obtain accurate landslide sliding quantity parameter. The remote sensing quick surveying method can be effectively used for comparison, selection and cost accounting of landslide treatment scheme.
Description
technical field [0001] The invention relates to unfavorable geological survey technology, in particular to a rapid survey method for landslide sliding quantity parameters using three-dimensional remote sensing technology. Background technique [0002] With the increasing frequency of human activities, the construction of railways, highways, mines, water conservancy, factories and other projects has increased the probability of landslide disasters. For landslide disasters induced by engineering construction, it is often necessary to quickly and accurately survey the parameters of landslide slide volume to provide reliable basis for landslide hazard assessment, selection of post-processing schemes, design of support structures, and calculation of treatment costs. At present, the parameters of landslide sliding volume are mainly obtained through estimation, and the error is relatively large, especially in difficult and dangerous mountainous areas. In recent years, a two-dimens...
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IPC IPC(8): G01B11/02G01C5/00
Inventor 刘桂卫李国和韩祖杰
Owner CHINA RAILWAY DESIGN GRP CO LTD