ANALYSIS OF FACTORS INFLUENCING THE PROPAGATION OF MINING BLASTING VIBRATION WAVE IN KARST AREA

CHEN Xuejun; YU Sizhe; SONG Yu; LI Jiaming; CHEN Yicheng; CHEN Lijie; ZHAO Zhiyong; YANG Yue

doi:10.12090/j.issn.1006-6616.2018.24.05.070

Volume 24 Issue 5

Oct. 2018

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Article Navigation > Journal of Geomechanics > 2018 > 24(5): 692-698

CHEN Xuejun, YU Sizhe, SONG Yu, et al., 2018. ANALYSIS OF FACTORS INFLUENCING THE PROPAGATION OF MINING BLASTING VIBRATION WAVE IN KARST AREA. Journal of Geomechanics, 24 (5): 692-698. DOI: 10.12090/j.issn.1006-6616.2018.24.05.070

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ANALYSIS OF FACTORS INFLUENCING THE PROPAGATION OF MINING BLASTING VIBRATION WAVE IN KARST AREA

doi: 10.12090/j.issn.1006-6616.2018.24.05.070

CHEN Xuejun^{1, 2, 3
,},
YU Sizhe^{1, 3},
SONG Yu^{1, 3
,
,},
LI Jiaming^{1, 3},
CHEN Yicheng^{1, 3},
CHEN Lijie^{1, 3},
ZHAO Zhiyong⁴,
YANG Yue^{1, 3}

1.
College of Civil Engineering and Architecture, Guilin University of Technology, Guilin 541004, Guangxi, China
2.
Open Research Fund of Guangxi Karst Dynamics Laboratory, Guilin 541004, Guangxi, China
3.
Guangxi Key Laboratory of Geotechnical Engineering, Guilin 541004, Guangxi, China
4.
Guangxi Hualan Design(Group) Co., Ltd., Nanning 530011, Guangxi, China

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Received: 2018-05-21
Revised: 2018-08-04
Published: 2018-10-01

Abstract

Abstract

The field blasting vibration test was carried out on the Pb-Zn mining area of Shuikoushan in Hunan, and the measured data of Gudan Pb-Zn mine were used for comparison and analysis. Four test lines were set up in the area and eight sets of blasting vibration data were received. The collected data were calculated by Sodev's regression correction formula. Vibration wave frequency and vibration velocity were used as test indexes. Based on the measured data, the frequency of blasting vibration wave, the transmission speed in the medium and the peak particle vibration velocity of seismic wave caused by the decay of rule and influencing factors were determined, so as to study the influence of the decay regularity and vibration of blasting vibration on karst collapse under different condition, providing reliable basis for reasonable exploitation of local mines and reducing the occurrence of ground collapse disaster. The experimental results show that mining activity is the main influencing factor of karst ground collapse. The frequency of blasting vibration wave attenuation is related to its propagation distance and fault in the rock mass strength. The wave propagation velocity is influenced by factors such as characteristics of rock and soil, rock stratum and rock strata direction.
- Pb-Zn mine,
- blasting vibration,
- mining activity,
- karst collapse

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References(16)

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ANALYSIS OF FACTORS INFLUENCING THE PROPAGATION OF MINING BLASTING VIBRATION WAVE IN KARST AREA

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ANALYSIS OF FACTORS INFLUENCING THE PROPAGATION OF MINING BLASTING VIBRATION WAVE IN KARST AREA

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