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With the increase in mineral resources demand and exhaustion of shallow resources, exploitations of deep underground resources have gradually become necessity and deeper excavations have been carried out in recent years (Mazaira and Konicek in Can Geotech J 52(10):1426–1439, 2015; Li et al. in J Rock Mech Geotech Eng 9(4):767–782, 2017). However, the loading states of rock in deep-buried excavations have different characteristics from “conventional loading” in the laboratory (Zhou et al. in Rock Mech Rock Eng 47(2):495–505, 2014; Gischig et al. in Rock Mech Rock Eng 49(6):2457–2478, 2016). Specifically, the deep-buried rock is generally not in a monotonous loading condition, but may experience external disturbance loads (such as blasting and drilling vibration, overburden fracture, groundwater pressure changes, rock bursts, etc.) and bear overstress simultaneously in the process of free surfaces formation of excavations.

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Experimental Study on the Influence of Dynamic Disturbance on Progressive Damage and Failure of Rock

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  • 发表日期：

    2025年

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  • Xu Chen

摘要

With the increase in mineral resources demand and exhaustion of shallow resources, exploitations of deep underground resources have gradually become necessity and deeper excavations have been carried out in recent years (Mazaira and Konicek in Can Geotech J 52(10):1426–1439, 2015; Li et al. in J Rock Mech Geotech Eng 9(4):767–782, 2017). However, the loading states of rock in deep-buried excavations have different characteristics from “conventional loading” in the laboratory (Zhou et al. in Rock Mech Rock Eng 47(2):495–505, 2014; Gischig et al. in Rock Mech Rock Eng 49(6):2457–2478, 2016). Specifically, the deep-buried rock is generally not in a monotonous loading condition, but may experience external disturbance loads (such as blasting and drilling vibration, overburden fracture, groundwater pressure changes, rock bursts, etc.) and bear overstress simultaneously in the process of free surfaces formation of excavations.