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Book Chapter

An Experiment on High-resolution Seismic Exploration at Shallow Depth in the Yuanbaoshan Open-pit Coal Mine

By
Zhang Shihong
Zhang Shihong
Institute of Geophysical and Geochemical Exploration, Ministry of Geology and Mineral Resources, Langfang, Hebei.
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Published:
January 01, 1989

Abstract

A high-resolution seismic survey has been completed in the Yuanbaoshan open-pit coal mine in the Inner Mongolia Autonomous Region. To overcome the problems in transmitting and receiving caused by the morain-gravel cover, the data acquisition techniques, such as shallow depth shot, small volume of charge, and geophone grouping, have been selected through tests. Predictive deconvolution and two-dimensional (2-D) filtering have been successfully used in data processing to suppress the shallow multi-reflected waves and improve the signal-to-noise (S/N) ratio.

Fault F2 in the east side slope of the coal mine which was missed by drilling, has been delineated by the seismic survey. This fault exerts a great influence on the stability of the side slope of the coal mine. Fault F1, the east boundary of the open-pit mine, is clearly recorded on seismic profiles. Some small faults in the coal measures of the Yuanbaoshan group have also been found by the seismic survey. Since the reliability of the seismic data has been proven by drilling, the geologic map of the area has been modified on the basis of the seismic data.

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Contents

Society of Exploration Geophysicists Geophysical References Series

An Overview of Exploration Geophysics in China — 1988

Zhao Jingxiang
Zhao Jingxiang
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Wang Yanjun
Wang Yanjun
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Fu Xuexin
Fu Xuexin
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Stanley H. Ward
Stanley H. Ward
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Society of Exploration Geophysicists
Volume
3
ISBN electronic:
9781560802662
Publication date:
January 01, 1989

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