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Causes and Prevention of High-position Collapse in Highways
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Song CHEN1, Xu YANG1, Jiang SHAO2, Qing ZHOU2, Haisong ZHAO2
Science Technology and Industry | 2025, 25(14) : 173 - 178
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Science Technology and Industry | 2025, 25(14): 173-178
• Regional Practice •
Causes and Prevention of High-position Collapse in Highways
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Song CHEN1, Xu YANG1, Jiang SHAO2, Qing ZHOU2, Haisong ZHAO2
Affiliations
  • 1 Aba Prefecture Construction Investment Co. Ltd., Wenchuan 623000, Sichuan, China
  • 2 Sichuan Highway Planning, Survey, Design and Research Institute Ltd., Chengdu 610041, China
Published: 2025-07-25
Outline
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With the rapid development of mountain highway construction, frequent high-positioned collapse disasters have posed serious threats to road traffic safety. Based on a typical high-positioned collapse case along a highway in the western Sichuan Plateau, geological surveys and numerical simulation analysis were employed to reveal the formation mechanisms of high-positioned collapses, analyze collapse energy, and propose a hierarchical passive protection combined with monitoring prevention method. The results indicate that unfavorable topographic and geological conditions serve as fundamental factors, with long-term weathering exacerbating structural plane deterioration. Rainfall acts as a triggering factor, where rainwater infiltration induces creep deformation of unstable rock masses leading to collapse development. The prevention method utilizing passive nets, open-cut tunnels, and intelligent monitoring systems proves effective for collapse control. This protection scheme can be promoted for application in canyon geomorphological regions.

high-position collapse  /  formation mechanism  /  prevention and control methods
Song CHEN, Xu YANG, Jiang SHAO, Qing ZHOU, Haisong ZHAO. Causes and Prevention of High-position Collapse in Highways[J]. Science Technology and Industry, 2025 , 25 (14) : 173 -178 .
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Year 2025 volume 25 Issue 14
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Article Info
  • Receive Date：2025-03-05
  • Online Date：2025-09-15
  • Published：2025-07-25
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  • Received：2025-03-05
Funding
Affiliations
    1 Aba Prefecture Construction Investment Co. Ltd., Wenchuan 623000, Sichuan, China
    2 Sichuan Highway Planning, Survey, Design and Research Institute Ltd., Chengdu 610041, China
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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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