收藏切换
Experimental Study on Mechanical Properties of Marble After Damage Caused by Dynamic and Static Combined Loads
收藏切换
Kui ZHAO1, 2, Zeliang YAN2, Peng ZENG1, 2, Daoxue YANG2
Mining Research and Development | 2025, 45(3) : 128 - 136
Less
收藏切换
Mining Research and Development | 2025, 45(3): 128-136
Experimental Study on Mechanical Properties of Marble After Damage Caused by Dynamic and Static Combined Loads
Full
Kui ZHAO1, 2, Zeliang YAN2, Peng ZENG1, 2, Daoxue YANG2
Affiliations
  • 1.School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China
  • 2.School of Civil Engineering and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China
Published: 2025-03-25
Outline
收藏切换

To study the mechanical properties of marble after damage caused by dynamic and static combined loads, the improved split Hopkinson pressure bar device was used to carry out dynamic and static combined load damage tests on marble at four axial compression levels (0, 18 MPa, 36 MPa, 54 MPa) and three impact velocity levels (8 m/s, 9 m/s, 10 m/s). The uniaxial compression acoustic emission tests on the damaged marble was carried out. The results show that under the action of static and dynamic combination, with the increase of axial static pressure, the dynamic peak stress, dynamic elastic modulus and wave velocity of marble increase firstly and then decrease. The absorption energy is closely related to the axial static pressure. When the axial static pressure is low, the energy required for the closure of microcracks in the rock is mainly obtained from the impact bar. With the increase of axial static pressure, the proportion of energy obtained from the impact bar gradually decreases. With the increase of axial static pressure, the uniaxial compressive strength and elastic modulus of rock after damage caused by dynamic and static combined load increase firstly and then decrease. When the axial static pressure is 18 MPa, the uniaxial compressive strength and elastic modulus of rock reach the maximum value. Appropriate axial static pressure can effectively improve the ability of rock to resist dynamic load and reduce rock damage. In the middle and later stages of the uniaxial loading failure process, the less the number of high-frequency acoustic emission signals (>400 kHz) of the rock with small damage degree, the more the number of medium and low-frequency acoustic emission signals (165 - 205 kHz). The proportion of acoustic emission signals at 165−205 kHz increases firstly and then decreases during the whole loading process, which can be used as a precursory feature of rock failure.

Static and dynamic combined load  /  Mechanical property  /  Axial static pressure  /  Impact velocity  /  Acoustic emission signal
赵奎, 闫泽亮, 曾鹏, 杨道学. 动静组合载荷致损后大理岩力学特性试验研究. 矿业研究与开发, 2025 , 45 (3) : 128 -136 .
Kui ZHAO, Zeliang YAN, Peng ZENG, Daoxue YANG. Experimental Study on Mechanical Properties of Marble After Damage Caused by Dynamic and Static Combined Loads[J]. Mining Research and Development, 2025 , 45 (3) : 128 -136 .
Year 2025 volume 45 Issue 3
54
27
Cite this Article
BibTeX
Article Info
  • Receive Date:2024-04-28
  • Online Date:2026-10-29
  • Published:2025-03-25
Article Data
Affiliations
History
  • Received:2024-04-28
Funding
Affiliations
    1.School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China
    2.School of Civil Engineering and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China
References
Share
https://castjournals.cast.org.cn/joweb/kyyjykf/EN/
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT