Comparative Analysis of Basic and Extended Power Models of Boreholes Expansion Dependence on Explosive Charge in Blasting in Clay Soil
Spherical cavities made by explosive charge activation in a clay soils differ in size and shape. The mass of explosive charge lowered on the bottom of the borehole in a one-time blasting is typically relatively small and is calculated by a desired and planned performace. The effect of smaller explos...
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MDPI AG
2020-04-01
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| Series: | Geosciences |
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| Online Access: | https://www.mdpi.com/2076-3263/10/4/151 |
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| author | Ivan Kovač Denis Težak Josip Mesec Ivica Markovinović |
| author_facet | Ivan Kovač Denis Težak Josip Mesec Ivica Markovinović |
| author_sort | Ivan Kovač |
| collection | DOAJ |
| description | Spherical cavities made by explosive charge activation in a clay soils differ in size and shape. The mass of explosive charge lowered on the bottom of the borehole in a one-time blasting is typically relatively small and is calculated by a desired and planned performace. The effect of smaller explosive charge for spherical cavities is in principle different than continuously filled borehole in mining and blasting operations. Detonation of smaller explosive charge crushes the material in proximity of activated explosive charge. With the increase of distance from the explosive charge, the released energy in not enough for crushing of the materials, but instead compacts it. This paper is an extension of the previous research, which resulted in a smallest error of estimated in a model shown as the sum of square residuals (SS), largest value of determination coefficient (R<sup>2</sup>) and smallest loss of information through Akaike’s Information Criteria (AIC and AIC<sub>c</sub>). This paper presents an extended power model of dependence of spherical cavity volume expansion on explosive charge. Extended model is a basic model with an additional parameter to ensure more precise mathematical description and further decrease of error of estimate for all efficiency indicators and for both types of explosive used. |
| first_indexed | 2024-03-10T20:23:11Z |
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| id | doaj.art-65b97aa7408c4d96a9b22d8faf5894e9 |
| institution | Directory Open Access Journal |
| issn | 2076-3263 |
| language | English |
| last_indexed | 2024-03-10T20:23:11Z |
| publishDate | 2020-04-01 |
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| series | Geosciences |
| spelling | doaj.art-65b97aa7408c4d96a9b22d8faf5894e92023-11-19T22:01:16ZengMDPI AGGeosciences2076-32632020-04-0110415110.3390/geosciences10040151Comparative Analysis of Basic and Extended Power Models of Boreholes Expansion Dependence on Explosive Charge in Blasting in Clay SoilIvan Kovač0Denis Težak1Josip Mesec2Ivica Markovinović3Faculty of Geotechnical Engineering, University of Zagreb, Hallerova aleja 7, 42000 Varaždin, CroatiaFaculty of Geotechnical Engineering, University of Zagreb, Hallerova aleja 7, 42000 Varaždin, CroatiaFaculty of Geotechnical Engineering, University of Zagreb, Hallerova aleja 7, 42000 Varaždin, CroatiaIndependent Researcher, Vidikovac 29, 43000 Bjelovar, CroatiaSpherical cavities made by explosive charge activation in a clay soils differ in size and shape. The mass of explosive charge lowered on the bottom of the borehole in a one-time blasting is typically relatively small and is calculated by a desired and planned performace. The effect of smaller explosive charge for spherical cavities is in principle different than continuously filled borehole in mining and blasting operations. Detonation of smaller explosive charge crushes the material in proximity of activated explosive charge. With the increase of distance from the explosive charge, the released energy in not enough for crushing of the materials, but instead compacts it. This paper is an extension of the previous research, which resulted in a smallest error of estimated in a model shown as the sum of square residuals (SS), largest value of determination coefficient (R<sup>2</sup>) and smallest loss of information through Akaike’s Information Criteria (AIC and AIC<sub>c</sub>). This paper presents an extended power model of dependence of spherical cavity volume expansion on explosive charge. Extended model is a basic model with an additional parameter to ensure more precise mathematical description and further decrease of error of estimate for all efficiency indicators and for both types of explosive used.https://www.mdpi.com/2076-3263/10/4/151spherical cavityclay soilexplosive chargeexpansion dependency modelpower model |
| spellingShingle | Ivan Kovač Denis Težak Josip Mesec Ivica Markovinović Comparative Analysis of Basic and Extended Power Models of Boreholes Expansion Dependence on Explosive Charge in Blasting in Clay Soil Geosciences spherical cavity clay soil explosive charge expansion dependency model power model |
| title | Comparative Analysis of Basic and Extended Power Models of Boreholes Expansion Dependence on Explosive Charge in Blasting in Clay Soil |
| title_full | Comparative Analysis of Basic and Extended Power Models of Boreholes Expansion Dependence on Explosive Charge in Blasting in Clay Soil |
| title_fullStr | Comparative Analysis of Basic and Extended Power Models of Boreholes Expansion Dependence on Explosive Charge in Blasting in Clay Soil |
| title_full_unstemmed | Comparative Analysis of Basic and Extended Power Models of Boreholes Expansion Dependence on Explosive Charge in Blasting in Clay Soil |
| title_short | Comparative Analysis of Basic and Extended Power Models of Boreholes Expansion Dependence on Explosive Charge in Blasting in Clay Soil |
| title_sort | comparative analysis of basic and extended power models of boreholes expansion dependence on explosive charge in blasting in clay soil |
| topic | spherical cavity clay soil explosive charge expansion dependency model power model |
| url | https://www.mdpi.com/2076-3263/10/4/151 |
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