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Mechanical Properties and Failure Characteristics of Argillaceous Weathered Dolomite Under Different Stress Paths
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Wei WEI, Chong CHEN, Xiaojie SHEN, Bing CUI, Tianhao CHEN
Mining and Metallurgical Engineering | 2026, 46(2) : 66 - 72
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Mining and Metallurgical Engineering | 2026, 46(2): 66-72
• MINING •
Mechanical Properties and Failure Characteristics of Argillaceous Weathered Dolomite Under Different Stress Paths
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Wei WEI, Chong CHEN, Xiaojie SHEN, Bing CUI, Tianhao CHEN
Affiliations
  • Norin Mining Co., Ltd., Beijing 100035, China
doi: 10.3969/j.issn.0253-6099.2026.02.010
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To investigate the mechanical response of argillaceous weathered dolomite and its effect on engineering stability, the weathered dolomite from a mining area was taken for research. Laboratory tests including uniaxial compression, uniaxial splitting and conventional triaxial compression were carried out to systematically analyze its mechanical properties and failure modes under different stress paths. The results show that: Compared with non-argillaceous weathered dolomite, the compressive strength and tensile strength of argillaceous weathered dolomite decrease significantly, while the deformation capacity is enhanced; the compressive strength of weathered dolomite decreases obviously under water-bearing conditions, and argillaceous weathered dolomite is more sensitive to water; in triaxial compression tests, the increase of confining pressure can effectively improve the strength and toughness of rock; argillaceous weathered dolomite is prone to plastic deformation and shear failure, whereas non-argillaceous weathered dolomite tends to brittle failure under high confining pressure.

dolomite  /  mechanical property  /  failure characteristics  /  stress path  /  failure criterion  /  triaxial compression  /  uniaxial compression  /  argillaceous matter  /  weathering  /  water saturation
魏威, 陈冲, 沈晓杰, 崔冰, 陈天浩. 不同应力路径下含泥质风化白云岩的力学特性和破坏特征. 矿冶工程杂志, 2026 , 46 (2) : 66 -72 . DOI: 10.3969/j.issn.0253-6099.2026.02.010
Wei WEI, Chong CHEN, Xiaojie SHEN, Bing CUI, Tianhao CHEN. Mechanical Properties and Failure Characteristics of Argillaceous Weathered Dolomite Under Different Stress Paths[J]. Mining and Metallurgical Engineering, 2026 , 46 (2) : 66 -72 . DOI: 10.3969/j.issn.0253-6099.2026.02.010
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Year 2026 volume 46 Issue 2
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Article Info
doi: 10.3969/j.issn.0253-6099.2026.02.010
  • Receive Date：2025-11-03
  • Online Date：2026-10-08
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  • Received：2025-11-03
Funding
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    Norin Mining Co., Ltd., Beijing 100035, China
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https://castjournals.cast.org.cn/joweb/kygczz/EN/10.3969/j.issn.0253-6099.2026.02.010
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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
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