综合勘察与分析法在某特大桥中的应用研究

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Abstract Research purposes: A bridge is located in structural suture zone, with developed faults, high seismic intensity, extremely complex geological conditions. Therefore, major geological problems such as slope stability, dangerous rocks, collapses, and rockfalls are prominent. The "ground" survey method has the characteristics of strong intuition and high accuracy. However, due to the adverse climate, high altitude, large elevation difference, steep terrain andother factors in the site, it is difficult to implement and has high safety risk in the difficult sections of the bridge. According to the environmental characteristics and geological conditions, it is necessary to introduce new technologies and methods combined with ground means to form a comprehensive survey and analysis technology, so as to find out the engineering geological and hydrogeological characteristics, especially structural plane and unloading zone needed for the slope stability analysis.
Research conclusions: (1) Many survey problems of the bridge site have been solved by using the integrated comprehensive survey method of the "air-space-ground". (2) The survey results of "air", "space" and "ground" are in good agreement. (3) The comprehensive survey and analysis method can improve the survey precision and accuracy under complex terrain and geological conditions. (4) The comprehensive survey and analysis method have been well applied and verified in the bridge, and can be popularized and applied in similar bridge projects.

Key words： comprehensive survey and analysis air-space-ground slope stability unfavorable geological condition structural plane unloading zone

Received: 13 September 2021

PACS:

U212.22

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	Articles by authors
	FENG Zhiguo
	HAO Jiangtao
	QIU Youyou

Cite this article:

FENG Zhiguo,HAO Jiangtao,QIU Youyou. Applied Research on the Comprehensive Survey and Analysis Method in a Bridge[J]. Journal of Railway Engineering Society, 2023, 40(11): 58-63.

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https://tdgcxb.crec.cn/EN/ OR https://tdgcxb.crec.cn/EN/Y2023/V40/I11/58

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