Haiwang Ye, Rui Li, Xingwang Li, Menghao Yu, Tao Lei
{"title":"基于岩石动破碎能耗密度的台阶爆破粉因子计算方法","authors":"Haiwang Ye, Rui Li, Xingwang Li, Menghao Yu, Tao Lei","doi":"10.1007/s10064-025-04318-8","DOIUrl":null,"url":null,"abstract":"<div><p>In order to study the relationship between rock mass dynamic parameters and blasting parameters, a calculation model of graphite ore bench blasting powder factor considering rock dynamic fragmentation energy consumption density is established based on dimensional analysis method. The dynamic compression tests of five types graphite ores with different grades under different impact pressure were designed and carried out with split Hopkinson pressure bar (SHPB) test system, combining with crushing screening tests, the reasonable range of strain rate and energy consumption density were obtained when the specimens were crushed. Through the field blasting test of Yunshan graphite mine in Luobei County, China, the reasonable powder factor of ore rock with different grades were explored. It is found that there is a Boltzmann-function relationship between the reasonable powder factor and 1/2 power of reasonable energy consumption density of ore rock dynamic fragmentation, and the calculation formula of powder factor is established accordingly. In practical mine production blasting, the powder factor values calculated with this formula highly satisfy the demands of the mine rock blasting, which verified the rationality and reliability of the functional relationship between the powder factor and energy consumption density.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 6","pages":""},"PeriodicalIF":3.7000,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Calculation method of bench blasting powder factor based on rock dynamic fragmentation energy consumption density\",\"authors\":\"Haiwang Ye, Rui Li, Xingwang Li, Menghao Yu, Tao Lei\",\"doi\":\"10.1007/s10064-025-04318-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In order to study the relationship between rock mass dynamic parameters and blasting parameters, a calculation model of graphite ore bench blasting powder factor considering rock dynamic fragmentation energy consumption density is established based on dimensional analysis method. The dynamic compression tests of five types graphite ores with different grades under different impact pressure were designed and carried out with split Hopkinson pressure bar (SHPB) test system, combining with crushing screening tests, the reasonable range of strain rate and energy consumption density were obtained when the specimens were crushed. Through the field blasting test of Yunshan graphite mine in Luobei County, China, the reasonable powder factor of ore rock with different grades were explored. It is found that there is a Boltzmann-function relationship between the reasonable powder factor and 1/2 power of reasonable energy consumption density of ore rock dynamic fragmentation, and the calculation formula of powder factor is established accordingly. In practical mine production blasting, the powder factor values calculated with this formula highly satisfy the demands of the mine rock blasting, which verified the rationality and reliability of the functional relationship between the powder factor and energy consumption density.</p></div>\",\"PeriodicalId\":500,\"journal\":{\"name\":\"Bulletin of Engineering Geology and the Environment\",\"volume\":\"84 6\",\"pages\":\"\"},\"PeriodicalIF\":3.7000,\"publicationDate\":\"2025-05-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bulletin of Engineering Geology and the Environment\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10064-025-04318-8\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, ENVIRONMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of Engineering Geology and the Environment","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10064-025-04318-8","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
Calculation method of bench blasting powder factor based on rock dynamic fragmentation energy consumption density
In order to study the relationship between rock mass dynamic parameters and blasting parameters, a calculation model of graphite ore bench blasting powder factor considering rock dynamic fragmentation energy consumption density is established based on dimensional analysis method. The dynamic compression tests of five types graphite ores with different grades under different impact pressure were designed and carried out with split Hopkinson pressure bar (SHPB) test system, combining with crushing screening tests, the reasonable range of strain rate and energy consumption density were obtained when the specimens were crushed. Through the field blasting test of Yunshan graphite mine in Luobei County, China, the reasonable powder factor of ore rock with different grades were explored. It is found that there is a Boltzmann-function relationship between the reasonable powder factor and 1/2 power of reasonable energy consumption density of ore rock dynamic fragmentation, and the calculation formula of powder factor is established accordingly. In practical mine production blasting, the powder factor values calculated with this formula highly satisfy the demands of the mine rock blasting, which verified the rationality and reliability of the functional relationship between the powder factor and energy consumption density.
期刊介绍：
Engineering geology is defined in the statutes of the IAEG as the science devoted to the investigation, study and solution of engineering and environmental problems which may arise as the result of the interaction between geology and the works or activities of man, as well as of the prediction of and development of measures for the prevention or remediation of geological hazards. Engineering geology embraces:
• the applications/implications of the geomorphology, structural geology, and hydrogeological conditions of geological formations;
• the characterisation of the mineralogical, physico-geomechanical, chemical and hydraulic properties of all earth materials involved in construction, resource recovery and environmental change;
• the assessment of the mechanical and hydrological behaviour of soil and rock masses;
• the prediction of changes to the above properties with time;
• the determination of the parameters to be considered in the stability analysis of engineering works and earth masses.
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