Experiment study of thrust fault rupture with unloading effect under P-wave and S-wave disturbance

被引：0

作者：

Zhang N. ^{[1
,2
,3
,4
]}

Shan R. ^{[1
]}

Zhao S. ^{[2
,3
,4
]}

Guo Y. ^{[5
]}

Wang Y. ^{[2
,3
,4
]}

Zhao Y. ^{[2
,3
,4
]}

机构：

[1] School of Mechanics and Civil Engineering, China University of Ming and Technology-Beijing, Beijing

[2] Mine Safety Technology Branch, China Coal Research Institute, Beijing

[3] State Key Laboratory of Coal Mining and Clean Utilization (China Coal Research Institute), Beijing

[4] Beijing Mine Safety Engineering Technology Research Center, Beijing

[5] Institute of Geology, China Earthquake Administration, Beijing

来源：

Caikuang yu Anquan Gongcheng Xuebao/Journal of Mining and Safety Engineering | 2022年 / 39卷 / 04期

关键词：

Fault slipping model; P-wave; S-wave; Stress wave disturbance; Thrust fault;

D O I：

10.13545/j.cnki.jmse.2021.0124

中图分类号：

学科分类号：

摘要：

Based on the unloading experiment of thrust fault rupture under P-wave and S-wave disturbance, the evolution characteristics of differential stress, displacement field, deformation field and AE in the process of thrust fault slippage have been studied, and the "climbing slope" model of fault slip and the disturbance mechanism of P-wave and S-wave have been proposed and analyzed. Results have shown that: different types of stress waves have different disturbance effects on fault slip; "spurts" of differential stress and strain increase when P-wave and S-wave disturb the fault, and "spurts" induced by P-wave are more than by S-wave. P-wave disturbances can cause obvious displacement "abrupt change" of measuring points on the fault, while the S-wave induces the vibration of displacement. When disturbed by S-wave, the duration of event I, coda wave is little longer and the duration of event III is slightly shorter than P-wave. The main seismic signal of the fault consists of three stages which are open slip, main shock and coda wave. The fault interface can be regarded as a combination of numerous inter-biting micro-cutting-teeth and the fault slip, which includes main shock (consists of incubation, sliding initiation, sliding continuation and stopping) and aftershock which is the process of micro-cutting-teeth crawling from one tooth gap to the adjacent tooth gap. P-wave and S-wave have obvious differences in the disturbance mechanism of fault slip, in which P-wave mainly affects the normal stress and friction coefficient, while S-wave mainly disturbs the shear stress. © 2022, Editorial Board of Journal of Mining & Safety Engineering. All right reserved.

引用

页码：693 / 701

页数：8

共 17 条

[1]

QI Qingxin, PAN Yishan, LI Haitao, Et al., Theoretical basis and key technology of prevention and control of coal-rock dynamic disasters in deep coal mining, Journal of China Coal Society, 45, 5, pp. 1567-1584, (2020)

[2]

PAN Yishan, WANG Laigui, ZHANG Mengtao, The theoretical and testing study of fault rockburst, Chinese Journal of Rock Mechanics and Engineering, 17, 6, pp. 642-649, (1998)

[3]

ZHANG Ningbo, ZHAO Shankun, ZHAO Yang, Et al., Study on the mechanism of thrust fault rupture causing by unloading effect, Journal of China Coal Society, 45, 5, pp. 1671-1680, (2020)

[4]

LI Yizhe, ZHAO Shankun, QI Qingxin, Et al., Preliminary study on coal bump mechanism induced by co-movement of higher strata and coal bump control method between two mines, Journal of China Coal Society, 45, 5, pp. 1681-1690, (2020)

[5]

QI Qingxin, SHI Yuanwei, LIU Tianquan, Mechanism of instability caused by viscous sliding in rock burst, Journal of China Coal Society, 22, 2, pp. 140-148, (1997)

[6]

CAI Wu, DOU Linming, WANG Guifeng, Et al., Mechanism of fault reactivation and its induced coal burst caused by coal mining activities, Journal of Mining & Safety Engineering, 36, 6, pp. 1193-1202, (2019)

[7]

ZHU Guang'an, DOU Linming, WANG Hongsheng, Et al., Analysis of fault activation induced rock burst risk based on in-situ stress measurements, Journal of China Coal Society, 45, 2, pp. 533-541, (2020)

[8]

ZHANG Pingsong, LU Haifeng, HAN Biwu, Et al., Monitoring and analysis of deformation characteristics of fault structure under mining condition, Journal of Mining & Safety Engineering, 36, 2, pp. 351-356, (2019)

[9]

LI Zhonghua, BAO Siyuan, YIN Wanlei, Et al., Study on the activation condition of giant thrust fault under mining disturbance, Journal of Mining & Safety Engineering, 36, 4, pp. 762-767, (2019)

[10]

WEN Xueze, MA Shengli, The influence of Tangshan Earthquake on the earthquake recurrence of adjacent fault section, Nature and Science Advances, 16, 10, pp. 1346-1350, (2006)

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