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A Prediction Method of Underground Earthquake Amplitude Parameters

A prediction method and ground motion technology, applied in neural learning methods, special data processing applications, biological neural network models, etc., can solve the problem of lack of ground motion amplitude variation along the depth and so on.

Active Publication Date: 2022-05-17
HARBIN INST OF TECH
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Problems solved by technology

[0004] The purpose of the present invention is to propose a method for predicting the amplitude parameter of underground earthquakes in view of the lack of methods in the prior art that can predict the law of the amplitude of the earthquake along the depth.

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  • A Prediction Method of Underground Earthquake Amplitude Parameters
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  • A Prediction Method of Underground Earthquake Amplitude Parameters

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specific Embodiment approach 1

[0022] Specific implementation mode one: refer to figure 1 Specifically illustrate this embodiment, a kind of underground earthquake amplitude parameter prediction method described in this embodiment, comprises the following steps:

[0023] Step 1: Obtain underground and surface records, and establish an underground earthquake data set, and then use the magnitude, epicentral distance, station depth, surface amplitude parameters, quality factor, and soil layer shear wave velocity distribution as the input parameters of the deep neural network, The underground peak acceleration PUA, underground peak velocity PUV and underground peak plus displacement PUD are used as the output parameters of the deep neural network;

[0024] Step 2: Divide the earthquake data set into training set, verification set and test set according to the ratio of 8:1:1;

[0025] Step 3: First, normalize the input parameters to the range [0,1], then construct three deep neural network models based on PUA, ...

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Abstract

A method for predicting amplitude parameters of underground earthquakes, which relates to the technical field of earthquake engineering. In view of the lack of methods in the prior art that can predict the law of the amplitude of ground motions along the depth, the present invention provides a method for predicting the amplitude parameters of underground earthquakes. Prediction is to improve the seismic design method of underground structures, that is, the selection of amplitude parameters in the response displacement method, and then simulate the impact of horizontal earthquake action on underground structures. The invention reflects the potential damage potential of earthquake motions through the adjusted earthquake motion parameters. . The present invention reflects the law of the variation of the amplitude of the earthquake along the depth through the prediction result of the underground earthquake. The invention can quantitatively obtain the amplitude parameter at any depth underground according to the amplitude parameter of the ground surface and the effective information of the site, and then quantitatively measure the error caused by the prediction method.

Description

technical field [0001] The invention relates to the technical field of earthquake engineering, in particular to a method for predicting amplitude parameters of underground earthquakes. Background technique [0002] With the large-scale development of urban underground space, people pay more and more attention to the seismic resistance of underground structures. For the most commonly used seismic design method of underground structures - the response displacement method, it is necessary to select appropriate amplitude parameters, which involves underground earthquakes. The problem of the variation law of the dynamic amplitude along the depth. [0003] So far, the seismic design of underground structures usually takes the amplitude parameters of the surface, or according to the "Code for Seismic Design of Underground Structures": the seismic action at the bedrock can take 1 / 2 of the surface, and the different depths from the surface to the bedrock can be Determined by interpo...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/13G06N3/04G06N3/08
CPCG06F30/13G06N3/08G06N3/045Y02A90/10
Inventor 温卫平翟长海籍多发董凯月
Owner HARBIN INST OF TECH
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