Random Dynamic Response Characteristics of Pipeline Subjected to Blasting Cylindrical SH Waves
It is essential to investigate the influence of blasting vibrations on pipelines, and the dynamic response is the crux in the safety issues. At present, the blasting seismic wave is usually regarded as a plane wave. However, there is little research about the dynamic response characteristics of unde...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/5592858 |
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| _version_ | 1850175379424149504 |
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| author | Shiwei Lu Heng Zhang Ling Ji |
| author_facet | Shiwei Lu Heng Zhang Ling Ji |
| author_sort | Shiwei Lu |
| collection | DOAJ |
| description | It is essential to investigate the influence of blasting vibrations on pipelines, and the dynamic response is the crux in the safety issues. At present, the blasting seismic wave is usually regarded as a plane wave. However, there is little research about the dynamic response characteristics of underground structures subjected to nonplane waves. The analytical solution to dynamic stress concentration factor (DSCF) of pipelines subjected to cylindrical SH wave was derived. Besides, the randomness of the shear modulus of soil was considered, and the statistical analysis of DSCF was carried out by the Monte Carlo simulation method. Results show that the variability of the shear modulus of soil has a significant influence on the probability distribution of DSCF. The larger the variation coefficient of the shear modulus is, the more obvious the skewness of DSCF is. The influence of low-frequency wave on pipeline increases with the reducing normalized distance r∗, while the influence of high-frequency wave reduces and the variation amplitude of DSCF increases. Compared with the DSCF of pipe subjected to a plane wave, a lower dominant frequency or larger normalized distance for the cylindrical SH wave will generate a more similar statistical characteristic of DSCF. |
| format | Article |
| id | doaj-art-cea6396bc7594fbd9752d907c1fee14b |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-cea6396bc7594fbd9752d907c1fee14b2025-08-20T02:19:29ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/55928585592858Random Dynamic Response Characteristics of Pipeline Subjected to Blasting Cylindrical SH WavesShiwei Lu0Heng Zhang1Ling Ji2School of Urban Construction, Yangtze University, Jingzhou 434023, ChinaSchool of Urban Construction, Yangtze University, Jingzhou 434023, ChinaFaculty of Engineering, China University of Geosciences, Wuhan 430074, ChinaIt is essential to investigate the influence of blasting vibrations on pipelines, and the dynamic response is the crux in the safety issues. At present, the blasting seismic wave is usually regarded as a plane wave. However, there is little research about the dynamic response characteristics of underground structures subjected to nonplane waves. The analytical solution to dynamic stress concentration factor (DSCF) of pipelines subjected to cylindrical SH wave was derived. Besides, the randomness of the shear modulus of soil was considered, and the statistical analysis of DSCF was carried out by the Monte Carlo simulation method. Results show that the variability of the shear modulus of soil has a significant influence on the probability distribution of DSCF. The larger the variation coefficient of the shear modulus is, the more obvious the skewness of DSCF is. The influence of low-frequency wave on pipeline increases with the reducing normalized distance r∗, while the influence of high-frequency wave reduces and the variation amplitude of DSCF increases. Compared with the DSCF of pipe subjected to a plane wave, a lower dominant frequency or larger normalized distance for the cylindrical SH wave will generate a more similar statistical characteristic of DSCF.http://dx.doi.org/10.1155/2021/5592858 |
| spellingShingle | Shiwei Lu Heng Zhang Ling Ji Random Dynamic Response Characteristics of Pipeline Subjected to Blasting Cylindrical SH Waves Shock and Vibration |
| title | Random Dynamic Response Characteristics of Pipeline Subjected to Blasting Cylindrical SH Waves |
| title_full | Random Dynamic Response Characteristics of Pipeline Subjected to Blasting Cylindrical SH Waves |
| title_fullStr | Random Dynamic Response Characteristics of Pipeline Subjected to Blasting Cylindrical SH Waves |
| title_full_unstemmed | Random Dynamic Response Characteristics of Pipeline Subjected to Blasting Cylindrical SH Waves |
| title_short | Random Dynamic Response Characteristics of Pipeline Subjected to Blasting Cylindrical SH Waves |
| title_sort | random dynamic response characteristics of pipeline subjected to blasting cylindrical sh waves |
| url | http://dx.doi.org/10.1155/2021/5592858 |
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