黄登水电站导截流工程主要地质问题及对策
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摘要
黄登水电站导截流工程地质条件复杂,导流洞出口段分布有千枚状泥质板岩,岩性软弱;截流围堰堰基河床部位冲积层厚度较大。针对以上工程地质问题,提出了相应的处理措施。导流洞的运行状况及各项观测资料表明,对主要工程地质问题的分析判断及采取的处理措施是合适的。
The geological conditions of the diversion and closure engineering at Huangdeng hydropower station are complex.The outlet of diversion tunnel distributes breakable phyllitic argillaceous slate with weak lithology, and the thickness of alluvial layer on the foundation of closure cofferdam is larger. In response to these engineering geological problems, some treatment measures are proposed. The actual operation of diversion tunnel and the observation data indicate that the analysis and judgment on main engineering geological problems and the treatment measures are appropriate.
The geological conditions of the diversion and closure engineering at Huangdeng hydropower station are complex.The outlet of diversion tunnel distributes breakable phyllitic argillaceous slate with weak lithology, and the thickness of alluvial layer on the foundation of closure cofferdam is larger. In response to these engineering geological problems, some treatment measures are proposed. The actual operation of diversion tunnel and the observation data indicate that the analysis and judgment on main engineering geological problems and the treatment measures are appropriate.
引文
[1]王文远,黄德凡,张万奎,等.澜沧江上游黄登水电站可行性研究报告[R].昆明:中国水电顾问集团昆明勘测设计研究院,2013.
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[4]王昆,张恒,黄德凡.某水电站导流洞高边坡变形失稳模式及稳定性研究[J].云南水力发电,2013,29(4):56-59.
[2]段邦鹏,张应洪.不良地质段大断面洞室的开挖与支护[J].云南水力发电,2013,29(4):126-128.
[3]韩贝传,王思敬.边坡倾倒变形的形成机制与影响因素分析[J].工程地质学报,1999,7(3):213-217.
[4]王昆,张恒,黄德凡.某水电站导流洞高边坡变形失稳模式及稳定性研究[J].云南水力发电,2013,29(4):56-59.