Calculation Model and Decoupling Coefficient Sensitivity Study of Periphery Hole for Eccentric Decoupled Charge in Highway Tunnels
On the basis of the eccentric decoupled charge form on site and borehole concentric decoupled computational theory, the calculation model of eccentric decoupling charge would be established in the present study. The calculation model takes into account the influence factors such as damage to the sur...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/9734529 |
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| _version_ | 1832549489743757312 |
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| author | Yuanqing Wang Junfeng Liu |
| author_facet | Yuanqing Wang Junfeng Liu |
| author_sort | Yuanqing Wang |
| collection | DOAJ |
| description | On the basis of the eccentric decoupled charge form on site and borehole concentric decoupled computational theory, the calculation model of eccentric decoupling charge would be established in the present study. The calculation model takes into account the influence factors such as damage to the surrounding rock, air, and water decoupled media. Besides, based on the proposed calculation model, blasting effect of a small-diameter EJ-102 emulsion explosive is calculated by using ANSYS LS-DYNA. The influence of decoupling coefficient, different rock grade, and different RQD value on blasting effect is obtained by sensitivity analysis of the simulated parameters. Then the calculated results are compared with the empirical results. The blasting parameters of fractured rock mass are also optimized by numerical simulation. |
| format | Article |
| id | doaj-art-1185f7787a7340a69a45eecbe6753fb4 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-1185f7787a7340a69a45eecbe6753fb42025-02-03T06:11:04ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/97345299734529Calculation Model and Decoupling Coefficient Sensitivity Study of Periphery Hole for Eccentric Decoupled Charge in Highway TunnelsYuanqing Wang0Junfeng Liu1The 5th Engineering Ltd., The 11th Engineering Bureau of China Railway, Chongqing 400037, ChinaSchool of Civil Engineering, Chongqing University, Chongqing 400045, ChinaOn the basis of the eccentric decoupled charge form on site and borehole concentric decoupled computational theory, the calculation model of eccentric decoupling charge would be established in the present study. The calculation model takes into account the influence factors such as damage to the surrounding rock, air, and water decoupled media. Besides, based on the proposed calculation model, blasting effect of a small-diameter EJ-102 emulsion explosive is calculated by using ANSYS LS-DYNA. The influence of decoupling coefficient, different rock grade, and different RQD value on blasting effect is obtained by sensitivity analysis of the simulated parameters. Then the calculated results are compared with the empirical results. The blasting parameters of fractured rock mass are also optimized by numerical simulation.http://dx.doi.org/10.1155/2018/9734529 |
| spellingShingle | Yuanqing Wang Junfeng Liu Calculation Model and Decoupling Coefficient Sensitivity Study of Periphery Hole for Eccentric Decoupled Charge in Highway Tunnels Shock and Vibration |
| title | Calculation Model and Decoupling Coefficient Sensitivity Study of Periphery Hole for Eccentric Decoupled Charge in Highway Tunnels |
| title_full | Calculation Model and Decoupling Coefficient Sensitivity Study of Periphery Hole for Eccentric Decoupled Charge in Highway Tunnels |
| title_fullStr | Calculation Model and Decoupling Coefficient Sensitivity Study of Periphery Hole for Eccentric Decoupled Charge in Highway Tunnels |
| title_full_unstemmed | Calculation Model and Decoupling Coefficient Sensitivity Study of Periphery Hole for Eccentric Decoupled Charge in Highway Tunnels |
| title_short | Calculation Model and Decoupling Coefficient Sensitivity Study of Periphery Hole for Eccentric Decoupled Charge in Highway Tunnels |
| title_sort | calculation model and decoupling coefficient sensitivity study of periphery hole for eccentric decoupled charge in highway tunnels |
| url | http://dx.doi.org/10.1155/2018/9734529 |
| work_keys_str_mv | AT yuanqingwang calculationmodelanddecouplingcoefficientsensitivitystudyofperipheryholeforeccentricdecoupledchargeinhighwaytunnels AT junfengliu calculationmodelanddecouplingcoefficientsensitivitystudyofperipheryholeforeccentricdecoupledchargeinhighwaytunnels |