In deep underground mine engineering, the critical warning signals before the sudden failure of coal are crucial to predict coal or rock dynamic catastrophes and to help the coal industry grow sustainably. Therefore, with the objective of accurately identifying the precursor signals of coal fracture, a uniaxial compression test was adopted. Tests were performed on multiple sets of raw coal samples, and acoustic emission (AE) technology was used to capture the deformation and destruction courses of the coal samples. Furthermore, the signal intensity of AE energy was discussed. Based on the critical slowing down theory, the AE energy sequence was processed. The results indicate that there are significant discrepancies in the strength of coal affected by initial pore fissures. During the whole loading process, the AE energy signals showed obvious stage characteristics, and there was a high risk of rapid coal energy storage during the unstable rupture development (URD) stage, which predicted the imminent destruction of the coal. The variance mutation point that was not affected by the lag step selection was easier to identify than that of the autocorrelation coefficient, and the precursor points were all in the URD stage, which is more accurate than using the AE cumulative energy curve slope.
机构:
Wageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, NetherlandsWageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, Netherlands
Dakos, Vasilis
Scheffer, Marten
论文数: 0引用数: 0
h-index: 0
机构:
Wageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, NetherlandsWageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, Netherlands
Scheffer, Marten
van Nes, Egbert H.
论文数: 0引用数: 0
h-index: 0
机构:
Wageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, NetherlandsWageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, Netherlands
van Nes, Egbert H.
Brovkin, Victor
论文数: 0引用数: 0
h-index: 0
机构:
Potsdam Inst Climate Impact Res, D-14412 Potsdam, GermanyWageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, Netherlands
Brovkin, Victor
Petoukhov, Vladimir
论文数: 0引用数: 0
h-index: 0
机构:
Potsdam Inst Climate Impact Res, D-14412 Potsdam, GermanyWageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, Netherlands
Petoukhov, Vladimir
Held, Hermann
论文数: 0引用数: 0
h-index: 0
机构:
Potsdam Inst Climate Impact Res, D-14412 Potsdam, GermanyWageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, Netherlands
机构:
China Univ Min & Technol, Sch Mech Architecture & Civil Engn, Beijing 100083, Peoples R China
State Key Lab GeoMech & Deep Underground Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol, Sch Mech Architecture & Civil Engn, Beijing 100083, Peoples R China
He, M. C.
Miao, J. L.
论文数: 0引用数: 0
h-index: 0
机构:
China Univ Min & Technol, Sch Mech Architecture & Civil Engn, Beijing 100083, Peoples R China
State Key Lab GeoMech & Deep Underground Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol, Sch Mech Architecture & Civil Engn, Beijing 100083, Peoples R China
Miao, J. L.
Feng, J. L.
论文数: 0引用数: 0
h-index: 0
机构:
China Univ Min & Technol, Sch Mech Architecture & Civil Engn, Beijing 100083, Peoples R China
State Key Lab GeoMech & Deep Underground Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol, Sch Mech Architecture & Civil Engn, Beijing 100083, Peoples R China
机构:
Wageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, NetherlandsWageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, Netherlands
Dakos, Vasilis
Scheffer, Marten
论文数: 0引用数: 0
h-index: 0
机构:
Wageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, NetherlandsWageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, Netherlands
Scheffer, Marten
van Nes, Egbert H.
论文数: 0引用数: 0
h-index: 0
机构:
Wageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, NetherlandsWageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, Netherlands
van Nes, Egbert H.
Brovkin, Victor
论文数: 0引用数: 0
h-index: 0
机构:
Potsdam Inst Climate Impact Res, D-14412 Potsdam, GermanyWageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, Netherlands
Brovkin, Victor
Petoukhov, Vladimir
论文数: 0引用数: 0
h-index: 0
机构:
Potsdam Inst Climate Impact Res, D-14412 Potsdam, GermanyWageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, Netherlands
Petoukhov, Vladimir
Held, Hermann
论文数: 0引用数: 0
h-index: 0
机构:
Potsdam Inst Climate Impact Res, D-14412 Potsdam, GermanyWageningen Univ, Dept Aquat Ecol & Water Qual Management, NL-6700 AA Wageningen, Netherlands
机构:
China Univ Min & Technol, Sch Mech Architecture & Civil Engn, Beijing 100083, Peoples R China
State Key Lab GeoMech & Deep Underground Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol, Sch Mech Architecture & Civil Engn, Beijing 100083, Peoples R China
He, M. C.
Miao, J. L.
论文数: 0引用数: 0
h-index: 0
机构:
China Univ Min & Technol, Sch Mech Architecture & Civil Engn, Beijing 100083, Peoples R China
State Key Lab GeoMech & Deep Underground Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol, Sch Mech Architecture & Civil Engn, Beijing 100083, Peoples R China
Miao, J. L.
Feng, J. L.
论文数: 0引用数: 0
h-index: 0
机构:
China Univ Min & Technol, Sch Mech Architecture & Civil Engn, Beijing 100083, Peoples R China
State Key Lab GeoMech & Deep Underground Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol, Sch Mech Architecture & Civil Engn, Beijing 100083, Peoples R China