Abstract
An express analysis of the ecological state of the soil during construction works is proposed. The algorithm is considered, which is the first approximation for describing the quality of the soil mixture, serving to build a system of operational recognition of the component composition of the soil mixture and the percentage of its main components. It is based on the analysis of the forced acoustic emission signal in the frequency domain to obtain the Fourier spectrum. From the general spectrum of the signal, consisting of a set of basic and higher (timbre) harmonics, subspectrs of significant basic harmonics corresponding to certain elements of the soil mixture are distinguished. To isolate the sub-spectra, a sequence of modal harmonics is used. The composition of the set of modal harmonics determines the qualitative composition of the soil in the first approximation.
Highlights
Известно, что, точность определения физико – химических свойств почвенных горизонтов существенно зависит от правильного выбора рабочей частоты и формы сигналов возбудителя колебаний [5, 6]
which is the first approximation for describing the quality of the soil mixture
It is based on the analysis of the forced acoustic emission signal
Summary
Что, точность определения физико – химических свойств почвенных горизонтов существенно зависит от правильного выбора рабочей частоты и формы сигналов возбудителя колебаний [5, 6]. При этом в качестве результатов используются оценки физико – химических параметров почв и электрических характеристик сигналов, генерируемых измерительными приборами. Что выбор конструкции установки для исследования почвенно – грунтовой смеси и параметры генерируемого ею возбуждающего сигнала, а также способ регистрации сигнала вынужденной акустической эмиссии во многом определяют успех эксперимента по исследованию почв и достоверность его результатов.
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