Microseismic event monitoring of highly stressed rock mass around underground oil storage caverns

Hong, Jia-Min; Lee, H.S.; Lee, D.H.; Kim, H.Y.; Choi, Young-Chul; Park, Y.J.

doi:10.1016/j.tust.2005.12.151

Cited by 20 publications

(3 citation statements)

References 2 publications

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“…Meanwhile, it cannot monitor the development and evolution of microfractures inside the rock mass, so it cannot capture the precursor information of the macroscopic failure of the rock mass. Microseismic monitoring technology, as a space monitoring technology capable of capturing microfractures in the rock masses, is widely used in various tunnels [36][37][38][39][40][41][42][43], mines [44][45][46][47][48], rock slopes [49,50], and unconventional oil and gas exploration [51], carbon dioxide storage [52], and other fields. It is used to identify potential failure zones in rock mass engineering, so as to achieve the early warning and forecast of rock mass damage [53][54][55].…”

Section: Stability Of the Surrounding Rock Of The Deep Tunnelmentioning

confidence: 99%

Rockburst Precursors and the Dynamic Failure Mechanism of the Deep Tunnel: A Review

Chen

Zhang

et al. 2021

Energies

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With the rapid development of underground caverns in the fields of hydraulic engineering, mining, railway and highway, the frequency, and intensity of rockburst and dynamic instability have gradually increased, which has become a bottleneck restricting the safe construction of deep caverns. This paper presents a review of the current understanding of rockburst precursors and the dynamic failure mechanism of the deep tunnel. Emphasis is placed on the stability of the surrounding rock of the deep tunnel, the rockburst prediction method, and the dynamic failure characteristics of the surrounding rock of the deep tunnel. Throughout the presentation, the current overall gaps in understanding rockburst precursors and the dynamic failure mechanism of deep tunnels are identified in an attempt to stimulate further research in these promising directions by the research community.

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Section: Stability Of the Surrounding Rock Of The Deep Tunnelmentioning

confidence: 99%

Rockburst Precursors and the Dynamic Failure Mechanism of the Deep Tunnel: A Review

Chen

Zhang

et al. 2021

Energies

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“…Microseismic (MS) monitoring techniques have been successfully used to accurately and effectively monitor the micro-cracks within surrounding rock masses in many engineering projects (e.g., Hong et al, 2006;Kaiser, 2009;Tang et al, 2011;Xu et al, 2011;Ma et al, 2013;Cai et al, 2015;Feng et al, 2015Feng et al, , 2016. In this study, an advanced Microseismic Monitoring System (Engineering Seismology Group, Canada) is applied, which consists of microseismic sensors installed in rock masses, a Paladin data acquisition system and a data analysis center.…”

Section: Contents Lists Available At Sciencedirectmentioning

confidence: 99%

Stability analysis of underground oil storage caverns by an integrated numerical and microseismic monitoring approach

Tang

Wang

et al. 2016

Tunnelling and Underground Space Technology

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a b s t r a c tUnderground storage in unlined caverns is of great significance for storing energy resources. Construction of underground storage caverns is an extremely complex process, involving extensive multi-bench excavation and strong unloading. Excavation-induced damage of surrounding rock masses may lead to instability of underground storage caverns. The aim of this paper is to put forward a method by integrating numerical simulation and microseismic monitoring for evaluation of cavern stability. A novel numerical method called Continuous-Discontinuous Element Method (CDEM) is applied to simulate micro-cracks under excavation-induced unloading conditions. Meanwhile, a microseismic (MS) monitoring system is employed to monitor real-time MS events during construction of storage caverns. Numerical results are validated using the monitoring data from the MS monitoring system. The integrated method is proved to be successful in capturing micro-cracks in underground storage caverns. Local instability, potential unstable zones and micro-crack evolution are analyzed, and cracking mechanisms are also discussed.

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“…size, density, and concentration of the microfractures, the development trend of the macrofractures may be deduced and the potential risk of the dam can be forecasted [3]. In the past two decades, as a three-dimensional, realtime monitoring technique, the MS monitoring technique has been widely applied to assess engineering hazards that involve rock slopes [3][4][5], deep mining [6][7][8][9][10][11][12][13], tunnels [14][15][16], underground powerhouse caverns [17,18], oil and gas storage [19,20], and nuclear waste disposal [21,22]. For example, Xu et al [3] established a dynamic relationship between geological structures and the spatial distribution of MS events and assessed the stability of a high rock slope based on MS activities.…”

Section: Zeuzier Arch Dam In Switzerlandmentioning

confidence: 99%

Integrated Analysis of the Formation Mechanism of Cracks in a Concrete Dam Using Microseismic Monitoring and Numerical Simulation

Wang

et al. 2016

Journal of Sensors

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The dam of Guanyinyan hydropower station is composed of a concrete gravity dam in the left bank and a rockfill dam in the right bank. During the operation of the hydropower station, several surface cracks occurred in the concrete gravity dam, which threatened the stability of the dam. To evaluate the evolution trend of the cracks and forecast the potential risk of the dam, the microseismic (MS) monitoring technique and finite-element method were used. First, the concrete three-point bending field test was performed to prove the reliability of the MS technique in monitoring the concrete cracks. The MS monitoring results were consistent with the simulation results. Then, the MS monitoring system was installed in the dam body. By analysing the MS activities before and after the impoundment, the evolution trend of the cracks and potential risk of the dam were evaluated and forecasted. The simulation results were also consistent with the monitoring results. These results can provide significant references for the operation safety of the dam and also present a new thought for the risk evaluation of similar dam engineering.

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Microseismic event monitoring of highly stressed rock mass around underground oil storage caverns

Cited by 20 publications

References 2 publications

Rockburst Precursors and the Dynamic Failure Mechanism of the Deep Tunnel: A Review

Rockburst Precursors and the Dynamic Failure Mechanism of the Deep Tunnel: A Review

Stability analysis of underground oil storage caverns by an integrated numerical and microseismic monitoring approach

Integrated Analysis of the Formation Mechanism of Cracks in a Concrete Dam Using Microseismic Monitoring and Numerical Simulation

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