A Method for Quantitative Evaluation of Landslide Hazard Risk
A quantitative evaluation and risk technology, applied in data processing applications, instruments, design optimization/simulation, etc., can solve the problems that the evaluation results cannot be directly applied to risk evaluation management
Active Publication Date: 2020-11-03
SOUTHWEST JIAOTONG UNIV
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[0004] The current regional geological disaster risk assessment methods mainly include analytic hierarchy process, logistic regression method, and information quantity method. It has different motion characteristics from the damage mechanism, and the evaluation results obtained often cannot be directly applied to large-scale risk assessment management.
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[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0022] Refer to figure 1 The embodiment of the present invention provides a method for quantitatively evaluating the risk of a landslide disaster, the method includes the following steps:
[0023] Step 100, field investigation and data collection: first conduct a field investigation of the landslide area, determine the landslide boundary, landslide source area, landslide type and movement form, etc., use ArcGIS software to organize and unif...
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The invention discloses a method for quantitatively evaluating landslide hazard dangerousness, and belongs to the field of landslide hazard risk evaluation. The method is characterized in that a landslide influence area is taken as a research object on the basis of RAMMS ((Rapid Mass Movement Simulation) and a GIS (Geographic Information System); under the supporting of RAMMS software, the movement process of the landslide is simulated; the movement characteristic parameter of the landslide is obtained; and a landslide pressure intensity parameter is applied to serve as a landslide dangerousness distinguishing index to obtain the influence range and the dangerousness partition map of the landslide. By use of the method, the RAMMS is applied to obtain the influence dangerous range and the dangerousness partition calculation of the landslide, and a new method is provided for quantitatively evaluating the landslide hazard dangerousness.
Description
Technical field [0001] The invention relates to the technical field of geological disaster risk assessment, in particular to a method for quantitatively evaluating the risk of landslide disasters. Background technique [0002] Landslide disasters have a greater impact, and the dangers of population and houses under landslide stress are even more cause for concern. In actual research, there are many problems that still cannot be judged and resolved. If under the stress of a landslide, which houses are dangerous? How to reduce the risk? This series of problems need to be faced and resolved. [0003] With the continuous advancement of my country's inter-regional industrial transfer, rapid economic growth in the central and western regions, and rapid progress in urbanization in mountainous areas, higher requirements have been placed on the accuracy of geological disaster risk assessment. There were about 15,000 geological hazards induced by the 5.12 earthquake in 2008, of which lan...
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IPC IPC(8): G06F30/20G06Q10/06G06Q50/26
Inventor 丁明涛黄涛李昱陆王英杰王青
Owner SOUTHWEST JIAOTONG UNIV