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Vibration Characteristics of Water Supply Pipeline near Rock Blasting in Silt-rock Strata
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Tao YIN1a, 1b, Ling JI1a, Hong-wei LI1b, Chuan-bo ZHOU2, Zhi-wei HE1b, Chang-qing ZHENG3
Blasting | 2024, 41(3) : 222 - 231
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Blasting | 2024, 41(3): 222-231
• BLASTING SAFETY •
Vibration Characteristics of Water Supply Pipeline near Rock Blasting in Silt-rock Strata
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Tao YIN1a, 1b, Ling JI1a, Hong-wei LI1b, Chuan-bo ZHOU2, Zhi-wei HE1b, Chang-qing ZHENG3
Affiliations
  • 1a.School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
  • 1b.Anhui Engineering Laboratory of Explosive Materials and Technology, Anhui University of Science and Technology, Huainan 232001, China
  • 2.Faculty of Engineering, China University of Geosciences (Wuhan), Wuhan 430074, China
  • 3.Zhuhai Baopoxin Research & Development Co., Ltd., Zhuhai 519099, China
Published: 2024-09-01 doi: 10.3963/j.issn.1001-487X.2024.03.026
Outline
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Although the rock stratum can be blasted into blocks in advance on the ground when the shield machine bores through silt-rock strata, the vibrations generated by blasting in silt-rock strata will threaten the safety of the water supply pipeline near the blast area. Based on the blasting vibrations of field tests and numerical simulations, the physical and mechanical parameters of the materials on sites were verified, and the dynamic response of the water supply pipeline near the blast area was studied. The research results show that the peak particle velocity (PPV) decreases with the increase of the horizontal distance from the explosion source on the pipeline along the axial direction. The PPV also decreases with the increase of the horizontal distance from the explosion source on the ground surface above the pipeline along the axial direction, and there is a relationship between the PPVs of the pipeline and the PPVs of the ground surface above the pipeline. The maximum PPV of the pipeline's inner wall is 3.97 times the minimum PPV, and the PPV is the highest at 90° of the inner wall. Meanwhile, the maximum PPV of the pipeline's outer wall is 1.03 times the minimum PPV, and the PPV is the highest at 150° of the outer wall. Besides, the PPV of each node is different from that of the other, and the PPV on the pipeline's inner wall is more significant than that on the pipeline's outer wall. Although the PPV on the pipeline's inner wall changes significantly, the PPV on the pipeline's outer wall is relatively close. The maximum peak effective stress of the element is 4.06 times the minimum peak effective stress of the element, and the peak effective stress of the element is the highest at 240°~270° of the pipeline's outer wall.

vibration characteristic  /  water supply pipeline  /  rock blasting  /  silt-rock strata  /  numerical simulation
Tao YIN, Ling JI, Hong-wei LI, Chuan-bo ZHOU, Zhi-wei HE, Chang-qing ZHENG. Vibration Characteristics of Water Supply Pipeline near Rock Blasting in Silt-rock Strata[J]. Blasting, 2024 , 41 (3) : 222 -231 . DOI: 10.3963/j.issn.1001-487X.2024.03.026
Funding
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  • National Natural Science Foundation of China(41972286)
  • Fund for Talent Introduction, Anhui University of Science and Technology(13190208; 13220458)
  • Youth Fund, Anhui University of Science and Technology(QNYB2021-01)
  • Anhui Engineering Laboratory of Explosive Materials and Technology, Anhui University of Science and Technology(AHBP2022B-05)
Appendix
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Year 2024 volume 41 Issue 3
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71
33
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Article Info
doi: 10.3963/j.issn.1001-487X.2024.03.026
  • Receive Date：2023-03-14
  • Online Date：2026-03-20
  • Published：2024-09-01
Article Data
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History
  • Received：2023-03-14
Funding
National Natural Science Foundation of China(41972286)
Fund for Talent Introduction, Anhui University of Science and Technology(13190208; 13220458)
Youth Fund, Anhui University of Science and Technology(QNYB2021-01)
Anhui Engineering Laboratory of Explosive Materials and Technology, Anhui University of Science and Technology(AHBP2022B-05)
Affiliations
    1a.School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
    1b.Anhui Engineering Laboratory of Explosive Materials and Technology, Anhui University of Science and Technology, Huainan 232001, China
    2.Faculty of Engineering, China University of Geosciences (Wuhan), Wuhan 430074, China
    3.Zhuhai Baopoxin Research & Development Co., Ltd., Zhuhai 519099, China
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https://castjournals.cast.org.cn/joweb/bp/EN/10.3963/j.issn.1001-487X.2024.03.026
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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