Blasting Vibration Safety Criterion Analysis with Equivalent Elastic Boundary: Based on Accurate Loading Model
Joint Authors
Wang, Liping
Dong, Jianghui
Li, Qingwen
Dasgupta, Gautam
Qiao, Lan
Ma, Siwei
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-05-20
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
In the tunnel and underground space engineering, the blasting wave will attenuate from shock wave to stress wave to elastic seismic wave in the host rock.
Also, the host rock will form crushed zone, fractured zone, and elastic seismic zone under the blasting loading and waves.
In this paper, an accurate mathematical dynamic loading model was built.
And the crushed zone as well as fractured zone was considered as the blasting vibration source thus deducting the partial energy for cutting host rock.
So this complicated dynamic problem of segmented differential blasting was regarded as an equivalent elastic boundary problem by taking advantage of Saint-Venant’s Theorem.
At last, a 3D model in finite element software FLAC3D accepted the constitutive parameters, uniformly distributed mutative loading, and the cylindrical attenuation law to predict the velocity curves and effective tensile curves for calculating safety criterion formulas of surrounding rock and tunnel liner after verifying well with the in situ monitoring data.
American Psychological Association (APA)
Li, Qingwen& Qiao, Lan& Dasgupta, Gautam& Ma, Siwei& Wang, Liping& Dong, Jianghui. 2015. Blasting Vibration Safety Criterion Analysis with Equivalent Elastic Boundary: Based on Accurate Loading Model. Shock and Vibration،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1078214
Modern Language Association (MLA)
Li, Qingwen…[et al.]. Blasting Vibration Safety Criterion Analysis with Equivalent Elastic Boundary: Based on Accurate Loading Model. Shock and Vibration No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1078214
American Medical Association (AMA)
Li, Qingwen& Qiao, Lan& Dasgupta, Gautam& Ma, Siwei& Wang, Liping& Dong, Jianghui. Blasting Vibration Safety Criterion Analysis with Equivalent Elastic Boundary: Based on Accurate Loading Model. Shock and Vibration. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1078214
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1078214