Study on the seismic damage and dynamic support of roadway surrounding rock based on reconstructive transverse and longitudinal waves

• DOI: 10.46690/ager.2023.09.04
• Publication Date: 2023-09-23T07:45:50Z
• Authors: Shengquan He; Feng Shen; Tuo Chen; Hani Mitri; Ting Ren; Dazhao Song
• Keywords: Transverse wave; Particle displacement; Seismic energy

The magnitude and frequency of induced seismicity increase as mining excavation reaches greater depth, leading to the increasingly severe damage roadways caused by high-energy seismic waves. To comprehensively simulate dynamic loads, a synchrosqueezing transform empirical mode decomposition method was developed, which effectively decomposed raw wave signals into transverse longitudinal components. This novel produced more accurate results in terms velocity, displacement, rock yielding patterns, reflecting theoretically orthogonal oscillating directions waves compared using mixed at source. Under disturbance waves, vertical displacement much higher than horizontal top position roadway, while sidewalls. particle vibration zone surrounding roadway were proportional energy level seismic, inversely source-roadway distance. proportion attributed increased with level, ranging from 75.8% 85.8%. Eventually, support design optimized based on proposed processing modeling methodology. methodology offers guidance for design, goal averting excessive or insufficient strength. Document Type: Original article Cited as: He, S., Shen, F., Chen, T., Mitri, H., Ren, Song, D. Study reconstructive Advances Geo-Energy Research, 2023, 9(3): 156-171. https://doi.org/10.46690/ager.2023.09.04