Search Results - "Long, Dayu"

Influence of rock bridge length on geomechanical behaviors of granite containing a hole and fissures under uniaxial increasing-amplitude decreasing-frequency cyclic loads by Wang, Yu, Long, Dayu, Han, Jianqiang

“…This work aims to reveal the influence of rock bridge length on fracture and energy evolution of granite containing a circular hole and two fissures exposed to…”
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X-Ray CT Investigation on Fractal Characteristics of Fine-Grained Tailing Sand in Fujian’s Makeng: Insight into the Mesoscopic Seepage Failure by Long, Dayu, Li, Changhong, Wang, Yu, Shi, Yueqi

“…This work is aimed at revealing the mesophysical process and mechanical behaviors of fine-grained tailing sand during seepage failure. The macroscopic seepage…”
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Investigation on the Prevention and Treatment Measures of Seepage Failure of the Fine-Grained Tailings Dam: A Case of Iron Tailings Reservoir in China by Long, Dayu, Li, Changhong, Hu, Yongyue, Li, Juzhou, Wang, Yu

“…To address the problem of seepage failure that affects the stability of the fine-grained tailings dam, two kinds of prevention and treatment measures were…”
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Experimental Evaluation of Multiple Frost Heaving Parameters for Preflawed Granite in Beizhan Iron Mining, Xinjiang, China by Wang, Yu, Long, Dayu, Rejuti, Zulifeiya, Wang, Huajian

“…Ice-driven mechanical weathering in cold regions is considered a main factor impacting the stability of rock mass. In this work, the response surface method…”
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Energy Mechanism and Acoustic Emission Characteristics in Rock-Backfill Composite Structure Specimens under Multi-Level Cyclic Loads: Cement-Tailings Ratio Effect by Dayu Long, Yu Wang, Changhong Li, Yunfeng Wu, Yongyue Hu

“…This study aimed to investigate the effects of the cement-tailings ratio (CTR) on the fatigue properties, acoustic emission (AE) activities, energy…”
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A Slope Stability Based Realm Optimization Analysis for an Open Pit Mine in Cold Region: Taking Jiguanshan Molybdenum Mine for Example by Hu, Yongyue, Li, Changhong, Li, Juzhou, Long, Dayu, Wang, Yu

“…Open pit mines have a direct impact on the production efficiency and sustainable development of the enterprise by realm optimization. In the case of changing…”
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Experimental investigation of fatigue crack propagation in interbedded marble under multilevel cyclic uniaxial compressive loads by Wang, Yu, Meng, Huajun, Long, Dayu

“…Multilevel cyclic loading–unloading uniaxial compressive testing combined with real‐time acoustic emission monitoring (AE) and post‐test computed tomography…”
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New insights into the fracture evolution and instability warning predication for fissure-contained hollow-cylinder granite with different hole diameter under multi-stage cyclic loads by Wang, Yu, Han, Jianqiang, Xia, Yingjie, Long, Dayu

“…•The influence of the hole diameter on fracture and instability of fissure-contained rock was investigated.•Volumetric deformation, hysteresis damping and…”
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On the fracture and energy characteristics of rock–backfill composite structure specimens exposed to fatigue–creep interaction loading by Wang, Yu, Yi, Xuefeng, Long, Dayu, Mao, Tianqiao

“…A series of stress‐controlled fatigue–creep interaction loading tests were performed on rock–backfill composite structure (RBCS) samples. The testing results…”
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Macro-meso fracture and instability of rock-backfill composite structure (RBCS) specimens subjected to fatigue-creep interaction loading: Cement-tailing ratio effect by Wang, Yu, Yi, Xuefeng, Long, Dayu, Li, Peng, Cai, Meifeng

“…The mechanical responses of rock-backfill composite structure (RBCS) material under fatigue-creep interaction loading is critical to the stability of mine…”
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Macro-meso fatigue fracture and instability of rock-backfill composite structure under increasing-amplitude cyclic loading by Long, Dayu, Wang, Yu, Li, Changhong, Wu, Yunfeng

“…The rock-backfill composite structure (RBCS) material in mine stopes is often subjected to stress disturbance. In order to reveal the fracture and instability…”
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Macro‐meso damage cracking and energy dissipation of rock‐backfill composites: Effect of cyclic disturbance frequency by Wang, Yu, Chen, Zhenzhen, Yi, Xuefeng, Long, Dayu

“…This work aims to reveal the effect of cyclic disturbance frequency, i.e., 0.01, 0.1, 0.5, and 1.0 Hz, on damage cracking and energy dissipation…”
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Alternative fatigue–creep performance of rock‐backfill composite structure material in mine stopes under high static stress: Disturbed amplitude effect by Wang, Yu, Long, Dayu, Yi, Xuefeng, Mao, Tianqiao

“…This work aims to investigate the dynamic stress amplitude on the mechanical responses of rock‐backfill composite structure material under alternative…”
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Study of the Microstructure Characteristics of Three Different Fine-grained Tailings Sand Samples during Penetration by Shi, Yueqi, Li, Changhong, Long, Dayu

“…This paper explores the microstructural evolution characteristics of tailings sand samples of different types of infiltration failure during the infiltration…”
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Energy-Based Fatigue–Creep Damage and Failure Pattern of Rock–Backfill Composite Structure Material in Mine Stopes Under High Static Stress: Disturbed Amplitude Effect by Wang, Yu, Yi, Xuefeng, Long, Dayu, Xia, Yingjie, Li, Peng, Cai, Meifeng

“…It is not uncommon that the rock–backfill composite structure (RBCS) material in underground mine stopes being exposed to alternative fatigue and creep loading…”
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Investigation of the Macro-Meso Seepage Failure Characteristics of Tailing Sand and Seepage Stability of Tailings Dam in Makeng Mine, Fujian, China by Long, Dayu, Wang, Yu, Li, Changhong, Hu, Yongyue, Shi, Yueqi

“…This research aims to study the seepage failure characteristics of the tailing sand, as well as the seepage stability of the tailings dam in the Makeng mine,…”
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