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Basic Characteristics and Engineering Treatment of Dam Foundation Fault Zone of Gushan Navigation and Power Junction in Hanjiang River
Affected by regional structure and multi-stage metamorphism, the dam site area of Gushan Navigation-Power Junction in Hanjiang River has developed faults in dam foundation, with 97 faults in total, among which 9 faults are wider than 1 m, and the maximum width of fracture zone is 10 m, which has great influence on the project. Through research, the dam foundation fault zone mainly affects the dam's anti-sliding stability, settlement deformation, leakage and seepage stability. According to the scale, spatial distribution, material composition and engineering properties of the fault, and considering the layout characteristics of the hub, measures such as trench excavation and backfilling concrete plugs, consolidation grouting and local increase of anchor rods are adopted for engineering treatment. The monitoring data of more than three years show that the deformation and leakage of dam foundation are within the normal range, which shows that the engineering measures of dam foundation for fault zone are effective.
Basic Characteristics and Engineering Treatment of Dam Foundation Fault Zone of Gushan Navigation and Power Junction in Hanjiang River
Affected by regional structure and multi-stage metamorphism, the dam site area of Gushan Navigation-Power Junction in Hanjiang River has developed faults in dam foundation, with 97 faults in total, among which 9 faults are wider than 1 m, and the maximum width of fracture zone is 10 m, which has great influence on the project. Through research, the dam foundation fault zone mainly affects the dam's anti-sliding stability, settlement deformation, leakage and seepage stability. According to the scale, spatial distribution, material composition and engineering properties of the fault, and considering the layout characteristics of the hub, measures such as trench excavation and backfilling concrete plugs, consolidation grouting and local increase of anchor rods are adopted for engineering treatment. The monitoring data of more than three years show that the deformation and leakage of dam foundation are within the normal range, which shows that the engineering measures of dam foundation for fault zone are effective.
Basic Characteristics and Engineering Treatment of Dam Foundation Fault Zone of Gushan Navigation and Power Junction in Hanjiang River
Lecture Notes in Civil Engineering
Li, Dayong (editor) / Zhang, Yu (editor) / Wang, Qiguo (author) / Hu, Yi (author)
2024-12-10
16 pages
Article/Chapter (Book)
Electronic Resource
English
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