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Method for establishing pulse seismic oscillation response model taking mountain terrain effect into consideration

A response model and establishment method technology, applied in seismology, seismic signal processing, geophysical measurement, etc., can solve the problem of inaccurate seismic model establishment

Pending Publication Date: 2019-11-01
SOUTHWEST JIAOTONG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies in the prior art, a method for establishing an impulse ground motion response model considering mountain topographical effects provided by the present invention solves the problem of inaccurate seismic model establishment

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  • Method for establishing pulse seismic oscillation response model taking mountain terrain effect into consideration
  • Method for establishing pulse seismic oscillation response model taking mountain terrain effect into consideration
  • Method for establishing pulse seismic oscillation response model taking mountain terrain effect into consideration

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Embodiment Construction

[0041]The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0042] Such as figure 1 As shown, a method for establishing an impulse ground motion response model considering the effect of mountain topography includes the following steps:

[0043] S1. Initialize pulse seismic record data serial number i=1, model serial number n=1;

[0044] S2, use FLAC3D software to build m models, set model parameters, and set monitoring points on the models, the models include mountain models and fre...

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Abstract

The invention discloses a method for establishing a pulse seismic oscillation response model taking a mountain terrain effect into consideration. A near-fault area tends to generate strong pulse seismic oscillation, and the mountain terrain can cause obvious amplification effect on pulse earthquake. According to the method, by comparing the acceleration spectrums of a trapezoid mountain model anda free field model under the action of pulse seismic oscillation, the obvious amplification effect of mountain terrains on pulse seismic oscillation is verified. Therefore, when the mountainous area is subjected to near-fault region earthquake risk evaluation, the amplification effect of mountain terrain on pulse seismic oscillation needs to be considered, so that pre-seismic disaster prevention and evaluation, earthquake-time emergency response and post-earthquake reconstruction planning can be realized in a manner of being closer to the actual situations.

Description

technical field [0001] The invention relates to the technical field of mountain terrain effects, in particular to a method for establishing a pulse ground motion response model considering mountain terrain effects. Background technique [0002] Large-scale earthquake disasters will induce thousands of landslides, which cause huge loss of life and property to human beings, and even the losses caused by landslides account for more than half of the entire earthquake loss. In my country, earthquake landslides are a common secondary disaster in earthquake disasters, and are also a common type of disaster in seismic activities. They not only occur on a large scale, but also pose a huge threat to human life. In addition, earthquake landslides are highly random, It is difficult to prevent and control, and it often brings great damage to buildings and traffic lines in mountainous areas, endangering the safety of life and property in the affected area. It is a type of geological disast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/28G01V1/30
CPCG01V1/282G01V1/307
Inventor 张迎宾王庆栋富海鹰魏江涛柳静相晨琳
Owner SOUTHWEST JIAOTONG UNIV
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