A Multistep Method for Automatic Determination and Optimization of Microseismic P-Phase Arrival Times in a Coal Mine

المؤلفون المشاركون

Zhu, Quanjie
Liu, Xiaohui
Liu, Xiaoyun
Chai, Haitao
Shi, Jianjun

المصدر

Advances in Civil Engineering

العدد

المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-15، 15ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2019-06-19

دولة النشر

مصر

عدد الصفحات

15

التخصصات الرئيسية

هندسة مدنية

الملخص EN

We present an algorithm for P-phase arrival time automatic determination and optimization for microseismic events of a coal mine in steps.

For P-phase detection, we apply four modules: single denoising (band-filter), fast searching (STA/LTA and peak value), accurately picking (AIC), and optimization selection (time difference of arrival time and envelope circle judgment).

This method is applied for a precise determination of P-phase arrival time; in addition, an automatic quality estimate is obtained to optimize and select the effective stations and used for source location.

Through the analysis and validation of seismic data in a mine located in Hebei province, the result shows that this method can pick up the first arrival time of MS signal fast and accurately and automatically judge and remove the error station.

Comparing automatic picks with the manual method in terms of speed and accuracy, computation cost (0.828 s) is far less than manual method (15 s per set), precision of manual and automatic represented by picking error is up to 71.7% (between −5 ms and 5 ms, 190 sets), 83.4% (between −10 ms and 10 ms, 221 sets), and 90.57% (between −20 ms and 20 ms, 240 sets).

This study shows that the method presented in this paper is feasible to precise automatic P-phase determination and is a basis on automatic and precision location.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Zhu, Quanjie& Liu, Xiaohui& Liu, Xiaoyun& Chai, Haitao& Shi, Jianjun. 2019. A Multistep Method for Automatic Determination and Optimization of Microseismic P-Phase Arrival Times in a Coal Mine. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1116066

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Zhu, Quanjie…[et al.]. A Multistep Method for Automatic Determination and Optimization of Microseismic P-Phase Arrival Times in a Coal Mine. Advances in Civil Engineering No. 2019 (2019), pp.1-15.
https://search.emarefa.net/detail/BIM-1116066

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Zhu, Quanjie& Liu, Xiaohui& Liu, Xiaoyun& Chai, Haitao& Shi, Jianjun. A Multistep Method for Automatic Determination and Optimization of Microseismic P-Phase Arrival Times in a Coal Mine. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1116066

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1116066