The Effect of Blast-Hole Arrangement, Delay Time, and Decoupling Charge on Rock Damage and Vibration Attenuation in Multihole Blasting
Rock damage and vibration attenuation are the basis of blasting design, which will affect rock breaking results and the safety of structures (buildings). In this paper, the effect of blast-hole arrangement, delay time, and decoupling charge on the rock damage and the vibration attenuation in multiho...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2022/2110160 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832567897741852672 |
|---|---|
| author | H.Z. Yue C. Yu H.B. Li C.B. Zhou S.H. Chen Z.S. Shao |
| author_facet | H.Z. Yue C. Yu H.B. Li C.B. Zhou S.H. Chen Z.S. Shao |
| author_sort | H.Z. Yue |
| collection | DOAJ |
| description | Rock damage and vibration attenuation are the basis of blasting design, which will affect rock breaking results and the safety of structures (buildings). In this paper, the effect of blast-hole arrangement, delay time, and decoupling charge on the rock damage and the vibration attenuation in multihole blasting were numerically investigated. Through dynamic analysis software ANSYS/LS-DYNA, the JOHNSON_HOLMQUIST_CONCRETE (JHC) rock model and fluid-solid coupling method were used to establish single-hole and multihole rock blasting models. Based on the analysis of single-hole rock damage and vibration, firstly, the effect of the above three factors on the rock damage characteristics of multihole blasting was analyzed. Then, the extracted peak particle velocity (PPV) data of multihole blasting were fitted to the United States Bureau of Mines (USBM) equation to obtain the blasting vibration attenuation parameters (the site constant K and α). It is found that the blast-hole arrangement, delay time, and decoupling charge have a much smaller effect on α than K. At the same time, a delay-time-dependent model of PPV correction coefficient was proposed, and its rationality was verified by field data. The results obtained in this paper have reference significance for optimizing the blasting design and improving the blasting effect. |
| format | Article |
| id | doaj-art-c7f14bb67cdd4b82b26de824de8306d9 |
| institution | Kabale University |
| issn | 1875-9203 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-c7f14bb67cdd4b82b26de824de8306d92025-02-03T01:00:14ZengWileyShock and Vibration1875-92032022-01-01202210.1155/2022/2110160The Effect of Blast-Hole Arrangement, Delay Time, and Decoupling Charge on Rock Damage and Vibration Attenuation in Multihole BlastingH.Z. Yue0C. Yu1H.B. Li2C.B. Zhou3S.H. Chen4Z.S. Shao5State Key Laboratory of Geomechanics and Geotechnical EngineeringState Key Laboratory of Geomechanics and Geotechnical EngineeringState Key Laboratory of Geomechanics and Geotechnical EngineeringFaculty of EngineeringCollege of Civil EngineeringSchool of Civil EngineeringRock damage and vibration attenuation are the basis of blasting design, which will affect rock breaking results and the safety of structures (buildings). In this paper, the effect of blast-hole arrangement, delay time, and decoupling charge on the rock damage and the vibration attenuation in multihole blasting were numerically investigated. Through dynamic analysis software ANSYS/LS-DYNA, the JOHNSON_HOLMQUIST_CONCRETE (JHC) rock model and fluid-solid coupling method were used to establish single-hole and multihole rock blasting models. Based on the analysis of single-hole rock damage and vibration, firstly, the effect of the above three factors on the rock damage characteristics of multihole blasting was analyzed. Then, the extracted peak particle velocity (PPV) data of multihole blasting were fitted to the United States Bureau of Mines (USBM) equation to obtain the blasting vibration attenuation parameters (the site constant K and α). It is found that the blast-hole arrangement, delay time, and decoupling charge have a much smaller effect on α than K. At the same time, a delay-time-dependent model of PPV correction coefficient was proposed, and its rationality was verified by field data. The results obtained in this paper have reference significance for optimizing the blasting design and improving the blasting effect.http://dx.doi.org/10.1155/2022/2110160 |
| spellingShingle | H.Z. Yue C. Yu H.B. Li C.B. Zhou S.H. Chen Z.S. Shao The Effect of Blast-Hole Arrangement, Delay Time, and Decoupling Charge on Rock Damage and Vibration Attenuation in Multihole Blasting Shock and Vibration |
| title | The Effect of Blast-Hole Arrangement, Delay Time, and Decoupling Charge on Rock Damage and Vibration Attenuation in Multihole Blasting |
| title_full | The Effect of Blast-Hole Arrangement, Delay Time, and Decoupling Charge on Rock Damage and Vibration Attenuation in Multihole Blasting |
| title_fullStr | The Effect of Blast-Hole Arrangement, Delay Time, and Decoupling Charge on Rock Damage and Vibration Attenuation in Multihole Blasting |
| title_full_unstemmed | The Effect of Blast-Hole Arrangement, Delay Time, and Decoupling Charge on Rock Damage and Vibration Attenuation in Multihole Blasting |
| title_short | The Effect of Blast-Hole Arrangement, Delay Time, and Decoupling Charge on Rock Damage and Vibration Attenuation in Multihole Blasting |
| title_sort | effect of blast hole arrangement delay time and decoupling charge on rock damage and vibration attenuation in multihole blasting |
| url | http://dx.doi.org/10.1155/2022/2110160 |
| work_keys_str_mv | AT hzyue theeffectofblastholearrangementdelaytimeanddecouplingchargeonrockdamageandvibrationattenuationinmultiholeblasting AT cyu theeffectofblastholearrangementdelaytimeanddecouplingchargeonrockdamageandvibrationattenuationinmultiholeblasting AT hbli theeffectofblastholearrangementdelaytimeanddecouplingchargeonrockdamageandvibrationattenuationinmultiholeblasting AT cbzhou theeffectofblastholearrangementdelaytimeanddecouplingchargeonrockdamageandvibrationattenuationinmultiholeblasting AT shchen theeffectofblastholearrangementdelaytimeanddecouplingchargeonrockdamageandvibrationattenuationinmultiholeblasting AT zsshao theeffectofblastholearrangementdelaytimeanddecouplingchargeonrockdamageandvibrationattenuationinmultiholeblasting AT hzyue effectofblastholearrangementdelaytimeanddecouplingchargeonrockdamageandvibrationattenuationinmultiholeblasting AT cyu effectofblastholearrangementdelaytimeanddecouplingchargeonrockdamageandvibrationattenuationinmultiholeblasting AT hbli effectofblastholearrangementdelaytimeanddecouplingchargeonrockdamageandvibrationattenuationinmultiholeblasting AT cbzhou effectofblastholearrangementdelaytimeanddecouplingchargeonrockdamageandvibrationattenuationinmultiholeblasting AT shchen effectofblastholearrangementdelaytimeanddecouplingchargeonrockdamageandvibrationattenuationinmultiholeblasting AT zsshao effectofblastholearrangementdelaytimeanddecouplingchargeonrockdamageandvibrationattenuationinmultiholeblasting |