矿震震源时空分布的分形特性与活动性预测——以新疆阿舍勒铜矿为例

doi:10.13722/j.cnki.jrme.2018.0855

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摘要基于分形理论的分形维数与岩体破坏活动规律之间有着密切联系。为研究岩体破坏时空分维值变化规律，揭示岩体破坏的实质，达到预测预报的目的，利用盒维数计算的方法分析阿舍勒铜矿微震监测系统的震源定位数据并聚类分析其时空分布规律与生产活动、开拓工程等之间的关系。首先，震源定位时空分布特征与分维值存在显著相关性；其次，在球覆盖半径为5时，时间空间分维值和无标度区间拟合程度最优，即根据分维值变化趋势预测预判岩体破坏过程的准确性最高。最后，时间、空间分维变化具有同趋势性并且和能量释放情况联系密切，更有利于实际工程应用。

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	赵聪聪
	唐绍辉
	覃敏
	郭晓强
	焦文宇
	刘畅

关键词 ：采矿工程, 震源定位, 分形理论, 盒维数, 前兆信息, 对比分析, 微地震活动性

Abstract：There is a close relationship between the fractal dimension based on fractal theory and the law of rock mass failure activity. In order to study the variation law of space-time fractal dimension of rock mass failure，reveal the essence of rock mass failure and achieve the purpose of forecasting，this paper uses box dimension calculation method to analyze the source location data of the Ashele copper mine microseismic monitoring system and the relationship between its spatial-temporal distribution law and production activities，development projects，etc. Firstly，there is a significant correlation between the temporal and spatial distribution characteristics of the source location and the fractal dimension. Secondly，when the sphere coverage which radius is 5，the time-space fractal dimension and the no-scale interval fit optimally. That is to say，according to the fractal dimension，Predicting the prediction of rock failure process is the most accurate. Finally，changes of the time and space fractal dimension which are closely related to the energy release have the same trend，which is more conducive to practical engineering applications.

Key words： minimg engineering source location fractal theory box dimension precursory information comparative analysis microseismicity

引用本文:

赵聪聪，唐绍辉，覃敏，郭晓强，焦文宇，刘畅. 矿震震源时空分布的分形特性与活动性预测——以新疆阿舍勒铜矿为例[J]. 岩石力学与工程学报, 2019, 38(S1): 3036-3044.
ZHAO Congcong，TANG Shaohui，QIN Min，GUO Xiaoqiang，JIAO Wenyu，LIU Chang. Fractal characteristics of spatiotemporal distribution and activity prediction based on mine earthquake—Taking the Ashele copper mine in Xinjiang as an example. , 2019, 38(S1): 3036-3044.

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http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2018.0855 或 http://rockmech.whrsm.ac.cn/CN/Y2019/V38/IS1/3036

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