Waveform Characteristics of Tunnel Blast Waves and a Wave-Blocking Method
The impact of blast wave air overpressure (AOp) may cause damage to nearby structures and significant noise pollution. In order to minimize the impact of the blast wave on the buildings around the tunnel, a new wave-blocking trolley (NWBT) was proposed to control the AOp during the construction of t...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2022/3013130 |
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| _version_ | 1832551187205849088 |
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| author | Xianshun Zhou Xuemin Zhang Tianhe Ren Xuefeng Ou Wenchao Xiong Liming Zhang Lei Zhang |
| author_facet | Xianshun Zhou Xuemin Zhang Tianhe Ren Xuefeng Ou Wenchao Xiong Liming Zhang Lei Zhang |
| author_sort | Xianshun Zhou |
| collection | DOAJ |
| description | The impact of blast wave air overpressure (AOp) may cause damage to nearby structures and significant noise pollution. In order to minimize the impact of the blast wave on the buildings around the tunnel, a new wave-blocking trolley (NWBT) was proposed to control the AOp during the construction of the Baitacun tunnel, as the nearby villages were located less than 100 m from the tunnel portal. In the study, the characteristics of the blast wave pressure profiles were studied by field measurements and numerical simulations and the Friedlander equation parameters were obtained. Second, the controlling effect and working mechanism of the NWBT were verified to be effective. The measured peak AOp was weakened from 2.49 kPa to 0.55 kPa with the operating NWBT, which meets the requirements of Chinese specifications. Furthermore, a numerical simulation for the impact process of the NWBT was established using the ANSYS/LS-DYNA software. Finally, it was found that a shorter distance from the NWBT to the source of the blast makes a better contribution to its wave-blocking effect. The waveform characteristics obtained in the study contribute to the design of tunnel surrounding structures; the application of the NWBT is a successful wave-blocking method for tunnels adjacent to environmentally sensitive areas. |
| format | Article |
| id | doaj-art-5d372e15cfda492a941cd5121ce475e2 |
| institution | Kabale University |
| issn | 1875-9203 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-5d372e15cfda492a941cd5121ce475e22025-02-03T06:04:39ZengWileyShock and Vibration1875-92032022-01-01202210.1155/2022/3013130Waveform Characteristics of Tunnel Blast Waves and a Wave-Blocking MethodXianshun Zhou0Xuemin Zhang1Tianhe Ren2Xuefeng Ou3Wenchao Xiong4Liming Zhang5Lei Zhang6School of Civil EngineeringSchool of Civil EngineeringGuizhou Highway Engineering Group Co., Ltd.School of Civil EngineeringSchool of Civil EngineeringGuizhou Highway Engineering Group Co., Ltd.Guizhou Highway Engineering Group Co., Ltd.The impact of blast wave air overpressure (AOp) may cause damage to nearby structures and significant noise pollution. In order to minimize the impact of the blast wave on the buildings around the tunnel, a new wave-blocking trolley (NWBT) was proposed to control the AOp during the construction of the Baitacun tunnel, as the nearby villages were located less than 100 m from the tunnel portal. In the study, the characteristics of the blast wave pressure profiles were studied by field measurements and numerical simulations and the Friedlander equation parameters were obtained. Second, the controlling effect and working mechanism of the NWBT were verified to be effective. The measured peak AOp was weakened from 2.49 kPa to 0.55 kPa with the operating NWBT, which meets the requirements of Chinese specifications. Furthermore, a numerical simulation for the impact process of the NWBT was established using the ANSYS/LS-DYNA software. Finally, it was found that a shorter distance from the NWBT to the source of the blast makes a better contribution to its wave-blocking effect. The waveform characteristics obtained in the study contribute to the design of tunnel surrounding structures; the application of the NWBT is a successful wave-blocking method for tunnels adjacent to environmentally sensitive areas.http://dx.doi.org/10.1155/2022/3013130 |
| spellingShingle | Xianshun Zhou Xuemin Zhang Tianhe Ren Xuefeng Ou Wenchao Xiong Liming Zhang Lei Zhang Waveform Characteristics of Tunnel Blast Waves and a Wave-Blocking Method Shock and Vibration |
| title | Waveform Characteristics of Tunnel Blast Waves and a Wave-Blocking Method |
| title_full | Waveform Characteristics of Tunnel Blast Waves and a Wave-Blocking Method |
| title_fullStr | Waveform Characteristics of Tunnel Blast Waves and a Wave-Blocking Method |
| title_full_unstemmed | Waveform Characteristics of Tunnel Blast Waves and a Wave-Blocking Method |
| title_short | Waveform Characteristics of Tunnel Blast Waves and a Wave-Blocking Method |
| title_sort | waveform characteristics of tunnel blast waves and a wave blocking method |
| url | http://dx.doi.org/10.1155/2022/3013130 |
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