2018
DOI: 10.1155/2018/4567258
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Stability Assessment of the Excavated Rock Slope at the Dagangshan Hydropower Station in China Based on Microseismic Monitoring

Abstract: A high-resolution microseismic (MS) monitoring system was implemented at the right bank slope of the Dagangshan hydropower station in May 2010 to analyse the slope stability subjected to continuous excavation. e MS monitoring system could real-time capture a large number of seismic events occurring inside the rock slope. e identification and delineation of rock mass damage subject to excavation and consolidation grouting can be conducted based on the analysis of tempospatial distribution of MS events. However,… Show more

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Cited by 5 publications
(3 citation statements)
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“…During the construction of highways and railways, slope excavation will not only change the original stress state of a slope, but also accelerate the weathering speed of new exposed rock mass [1][2][3][4]; therefore, it is necessary to support the excavated slope along the road to improve the stability of the excavated slope, so as to ensure the operation safety of the road. There are many kinds of slope support methods, commonly used slope support structures include retaining wall [5][6][7], anti-slide pile [8,9], prestressed anchor rod [10,11] and prestressed anchor cable [12,13], among them, the prestressed anchor cable has been widely used in slope support engineering due to its advantages of reliable strength, simple construction and economic benefits.…”
Section: Introductionmentioning
confidence: 99%
“…During the construction of highways and railways, slope excavation will not only change the original stress state of a slope, but also accelerate the weathering speed of new exposed rock mass [1][2][3][4]; therefore, it is necessary to support the excavated slope along the road to improve the stability of the excavated slope, so as to ensure the operation safety of the road. There are many kinds of slope support methods, commonly used slope support structures include retaining wall [5][6][7], anti-slide pile [8,9], prestressed anchor rod [10,11] and prestressed anchor cable [12,13], among them, the prestressed anchor cable has been widely used in slope support engineering due to its advantages of reliable strength, simple construction and economic benefits.…”
Section: Introductionmentioning
confidence: 99%
“…Based on the slope around the flood discharge tunnel at Yangqu Hydropower Station, a complicated three-dimensional (3D) numerical simulation and safety assessment were implemented in FLAC3D, while 3D slide arcs of good shape were obtained [26]. Taking the right bank slope in Dagangshan Hydropower Station in Sichuan province of China as the research background, the FLAC3D numerical simulation method was utilized to analyze its stability [27][28][29].…”
Section: Introductionmentioning
confidence: 99%
“…The keys to studying the stability of a slope are as follows: Correctly determine the mechanical parameters of the disturbed rock mass, and quantitatively analyze the rock mass damage. The feedback analysis method has thus emerged as a main trend in studies of the slope security and stability [8,9].…”
Section: Introductionmentioning
confidence: 99%