Landslide depth inversion method using InSAR elevating track deformation data

A lifting rail and deformation technology, applied in the direction of re-radiation, radio wave reflection/re-radiation, and measuring devices, can solve problems such as inability to accurately reflect the depth distribution of landslides, improve reliability and applicability, and improve The effect of accuracy

Pending Publication Date: 2021-12-28
CHENGDU UNIVERSITY OF TECHNOLOGY +1
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above-mentioned deficiencies in the prior art, the landslide depth inversion method using InSAR lifting rail deformation data provided by the pr

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Landslide depth inversion method using InSAR elevating track deformation data
  • Landslide depth inversion method using InSAR elevating track deformation data
  • Landslide depth inversion method using InSAR elevating track deformation data

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0050] Example 1:

[0051] like figure 1 As shown in a slide rail InSAR depth deformation data inversion method using the lift, comprising the steps of:

[0052] Sl, using the timing technique InSAR landslide lifting rail radar image area is processed to obtain time series data of deformation of the slide region;

[0053] S2, timing deformation data, the spatial region geometric relationship landslides and DEM data, solving a two-dimensional deformation data and the landslide slope along the surface normal direction;

[0054] S3, constructed in the mass conservation criteria based on two-dimensional depth of the landslide model inversion deformation, and calculates the depth of the landslide deformation data models of the 2D inversion, to obtain the depth of the landslide inversion calculation.

[0055] The present embodiment considers the small Baseline Interferometry (SBAS-InSAR) technology can be better overcome the conventional temporal decorrelation DInSAR faced problems and ...

Example Embodiment

[0090] Example 2:

[0091] In this embodiment landslide depth inversion by the above method as in Example 1 to ancient landslide area Tsubosato peach, peach Xiang Li County, Sichuan ancient landslide located Tsubosato peach, north western Sichuan genus mountains and high mountain region, located mountain monsoon climate zone, the area elevation height difference between, complex terrain. Affected by climate in the region each year 7 - October more rainfall in winter is relatively little precipitation, annual rainfall of between 650mm ~ 1000mm. Peach Tsubosato overall presentation slide chair shape ancient, low-lying southwest NE high, narrow width on the slope, the average slope of about 27 ° ~ 53 °, landslide bound to slow steep slope is approximately the leading edge height of 1480m, the edge elevation of about 2710m, relative height of ~ 1230m, 2700m longitudinal length, lateral width ~ 2000m, is a large landslide.

[0092] In this embodiment the collection region Sentinel-1 sa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a landslide depth inversion method using InSAR elevating track deformation data, and the method comprises the following steps: S1, carrying out the processing of an elevating track radar image of a landslide region through employing a time sequence InSAR technology, and obtaining the time sequence deformation data of the landslide region; s2, according to the time sequence deformation data, the spatial geometrical relationship of the landslide area and DEM data, obtaining two-dimensional deformation data of the landslide surface in the slope direction and the normal direction through calculation; and S3, constructing a landslide depth inversion model based on two-dimensional deformation under a mass conservation criterion, and calculating the landslide depth inversion model according to the two-dimensional deformation data to obtain an inversion calculation result of the landslide depth. The method is suitable for successfully extracting and obtaining the landslide mass of the InSAR deformation field of the ascending and descending orbit of the satellite, in addition, the landslide depth can be subjected to significant image inversion through the rheological parameters of the slope body substances, and the reliability and applicability of the method are significantly improved through the accuracy of the parameters.

Description

technical field [0001] The invention belongs to the technical field of landslide depth detection, and in particular relates to a landslide depth inversion method using InSAR lifting rail deformation data. Background technique [0002] Landslide disasters are characterized by strong suddenness, great harm, and difficulties in early identification, monitoring and early warning. Since the 1950s, at least 22 provinces, municipalities, and autonomous regions in my country have suffered landslide disasters of varying degrees, causing huge disasters. Casualties and property losses, and a direct threat to the safety of major human engineering facilities such as roads, railways, water conservancy and hydropower, and mines. Therefore, early identification, monitoring and early warning, and risk assessment of landslide disasters have become important tasks in the field of disaster prevention and mitigation in my country. Among them, landslide surface deformation velocity, landslide dep...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01S13/90
CPCG01S13/9023
Inventor 杨莹辉郭劲松许强范宣梅刘威黎浩良刘本银陶鑫鑫
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap