An Energy-Based Safety Evaluation Index of Blast Vibration
The combined peak particle velocity (PPV) and frequency safety criterion for blast vibration is widely used in blasting engineering. However, some field investigations are inconsistent with this criterion. On the basis of field investigations, it is found that there are two failure modes of structur...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2015/698193 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849396063240192000 |
|---|---|
| author | Mingsheng Zhao Dong Huang Maosen Cao En-an Chi Jun Liu Qiang Kang |
| author_facet | Mingsheng Zhao Dong Huang Maosen Cao En-an Chi Jun Liu Qiang Kang |
| author_sort | Mingsheng Zhao |
| collection | DOAJ |
| description | The combined peak particle velocity (PPV) and frequency safety criterion for blast vibration is widely used in blasting engineering. However, some field investigations are inconsistent with this criterion. On the basis of field investigations, it is found that there are two failure modes of structures subjected to blasting seismic waves, that is, first-excursion failure and cumulative plastic damage failure. Moreover, the nature of structural responses under blast vibrations is a process of energy input, transformation, and dissipation. Therefore, an energy-based dual safety standard is proposed in this work to more comprehensively explain all failure modes of structures under blast vibrations. To this end, structures are simplified into elastic-plastic single degree of freedom (SDOF) systems with bilinear restoring force models, and energy responses of SDOF systems are then determined using the Newmark-β method. From the energy responses, the maximum instantaneous input energy and hysteretic energy are selected as the basis of the dual safety criterion, because they can reflect first-excursion failure and cumulative plastic damage failure, respectively. Finally, field investigations in a blasting site in Zunyi, Guizhou province, China, are used to prove that compared to the PPV-frequency criterion the proposed energy-based dual safety criterion is more capable of assessing the damage potential of blast vibrations. |
| format | Article |
| id | doaj-art-b566b3c4f491467db47608aaefad2e6a |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-b566b3c4f491467db47608aaefad2e6a2025-08-20T03:39:26ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/698193698193An Energy-Based Safety Evaluation Index of Blast VibrationMingsheng Zhao0Dong Huang1Maosen Cao2En-an Chi3Jun Liu4Qiang Kang5Guizhou Xinlian Blasting Engineering Group Co. Ltd., 78 Xinhua Road, Fuzhong Building 17, Guiyang, Guizhou 550002, ChinaKey Laboratory of Mountain Hazards and Surface Process and Institute of Mountain and Environment, Chinese Academy of Science and Ministry of Water Conservancy, Chengdu, Sichuang 610041, ChinaCollege of Mechanics and Materials, Hohai University, 1 Xikang Road, Nanjing, Jiangsu 210098, ChinaGuizhou Xinlian Blasting Engineering Group Co. Ltd. and Mining College, Guizhou University, 78 Xinhua Road, Fuzhong Building 17, Guiyang, Guizhou 550002, ChinaKey Laboratory of Ministry of Education for Geomechanics and Embankment Engineering and Institute of Engineering Safety and Disaster Prevention, Hohai University, 1 Xikang Road, Nanjing, Jiangsu 210098, ChinaInstitute of Geotechnical Engineering, Hohai University, 1 Xikang Road, Nanjing, Jiangsu 210098, ChinaThe combined peak particle velocity (PPV) and frequency safety criterion for blast vibration is widely used in blasting engineering. However, some field investigations are inconsistent with this criterion. On the basis of field investigations, it is found that there are two failure modes of structures subjected to blasting seismic waves, that is, first-excursion failure and cumulative plastic damage failure. Moreover, the nature of structural responses under blast vibrations is a process of energy input, transformation, and dissipation. Therefore, an energy-based dual safety standard is proposed in this work to more comprehensively explain all failure modes of structures under blast vibrations. To this end, structures are simplified into elastic-plastic single degree of freedom (SDOF) systems with bilinear restoring force models, and energy responses of SDOF systems are then determined using the Newmark-β method. From the energy responses, the maximum instantaneous input energy and hysteretic energy are selected as the basis of the dual safety criterion, because they can reflect first-excursion failure and cumulative plastic damage failure, respectively. Finally, field investigations in a blasting site in Zunyi, Guizhou province, China, are used to prove that compared to the PPV-frequency criterion the proposed energy-based dual safety criterion is more capable of assessing the damage potential of blast vibrations.http://dx.doi.org/10.1155/2015/698193 |
| spellingShingle | Mingsheng Zhao Dong Huang Maosen Cao En-an Chi Jun Liu Qiang Kang An Energy-Based Safety Evaluation Index of Blast Vibration Shock and Vibration |
| title | An Energy-Based Safety Evaluation Index of Blast Vibration |
| title_full | An Energy-Based Safety Evaluation Index of Blast Vibration |
| title_fullStr | An Energy-Based Safety Evaluation Index of Blast Vibration |
| title_full_unstemmed | An Energy-Based Safety Evaluation Index of Blast Vibration |
| title_short | An Energy-Based Safety Evaluation Index of Blast Vibration |
| title_sort | energy based safety evaluation index of blast vibration |
| url | http://dx.doi.org/10.1155/2015/698193 |
| work_keys_str_mv | AT mingshengzhao anenergybasedsafetyevaluationindexofblastvibration AT donghuang anenergybasedsafetyevaluationindexofblastvibration AT maosencao anenergybasedsafetyevaluationindexofblastvibration AT enanchi anenergybasedsafetyevaluationindexofblastvibration AT junliu anenergybasedsafetyevaluationindexofblastvibration AT qiangkang anenergybasedsafetyevaluationindexofblastvibration AT mingshengzhao energybasedsafetyevaluationindexofblastvibration AT donghuang energybasedsafetyevaluationindexofblastvibration AT maosencao energybasedsafetyevaluationindexofblastvibration AT enanchi energybasedsafetyevaluationindexofblastvibration AT junliu energybasedsafetyevaluationindexofblastvibration AT qiangkang energybasedsafetyevaluationindexofblastvibration |