Annoyance degree assessing method for combined effect of environmental vibration and noise of subway

Abstract

An annoyance degree assessing method for a combined effect of environmental vibration and noise of a subway. The method comprises: according to a linear correlation between a degree of vibration felt by human bodies and a vibration level, establishing an annoyance degree membership function in a subway vibration environment by using a fuzzy mathematics method; introducing a normal distribution function to describe uncertainty of a vibration reaction caused by individual differences; coupling the annoyance degree membership function and the normal distribution function, to establish an annoyance degree model of environmental vibration of a subway; obtaining an annoyance degree model of environmental noise of the subway by using the same method; and determining an annoyance degree feature of people under a joint action of vibration and noise according to a result of a sampling survey, establishing a combined annoyance degree mathematical model, and inputting measured vibration and noise data into the model, so as to calculate a combined annoyance degree in the environment of vibration and noise. The assessing method can calculate the relatively accurate annoyance degree of the people in the environment of vibration and noise, and implement environmental quantitative evaluation and grading of a subway area, so as to provide guidance for space resource exploitation and utilization, vibration preventiion and noise reduction in an area near a subway.

Description

technical field [0001] The invention relates to the field of vibration and noise environment evaluation of urban rail transit, and proposes an annoyance evaluation method for the joint effect of subway environment vibration and noise. Background technique [0002] With the development of my country's social economy, the rapid development of the subway transportation system, while bringing convenience, the problems of environmental vibration and noise caused by its operation have become increasingly prominent, which has brought certain troubles to the daily life and work of the surrounding people, and even affected to human health. A number of national standards related to environmental vibration and noise have been issued in China to guide the evaluation of environmental vibration and noise. The representative ones are "Urban Regional Environmental Vibration Standard" (GB10070-88) and "Urban Regional Environmental Noise Standard" (GB3096-93), but such standards can only make...

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Problems solved by technology

A number of national standards related to environmental vibration and noise have been issued in China to guide the evaluation of environmental vibration and noise. The representative ones are "Urban Regional Environmental Vibration Standard" (GB10070-88) and "Urban Regional Environmental Noise Standard" (GB3096-93), but such standards can only make qualitative evaluations on whether the regional environment meets the standards, and cannot quantitatively reflect the level of annoyance in vibration and noise environments; evaluation models proposed by some international scholars are all for vibration or A single evaluation index for noise, although this can also obtain a quantitative evaluation result, it is obviously unable to comprehensively and accurately analyze and evaluate the problem of annoyance under the joint action of vibration and noise caused by subway operation

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