老挝南俄四水电站区域构造特征及稳定性评价  

Regional Structural Characteristics and Stability Evaluation of NamNgum 4 Hydropower Station in Laos

作　　者：柳旻 夏玉云 黄磊 王冉 乔建伟 LIU Min;XIA Yuyun;HUANG Lei;WANG Ran;QIAO Jianwei(China Jikan Research Institute of Engineering Investigations and Design,Co.Ltd,Xi’an,710043,China;Key Laboratory of Special Geotechnical Properties and Treatment in Shaanxi Province,xi’an 710043,China)

机构地区：[1]机械工业勘察设计研究院有限公司,西安710043 [2]陕西省特殊岩土性质与处理重点实验室,西安710043

出　　处：《华北地震科学》2023年第3期22-27,共6页North China Earthquake Sciences

基　　金：陕西省创新能力支撑计划项目(2023-CX-TD-34,2022-KJXX-05,2023-CX-PT-46);国机集团青年科技基金项目(QNJJ-PY-2022-41,QNJJ-ZD-2022-17);西安市英才计划青年项目(2022XAYC-03);CMEC科技孵化项目(CMEC-KJFH-2018-02)。

摘　　要：通过详细分析老挝南俄四水电站区域的大地构造背景、主要构造断裂带的活动性、地震活动性等,认为水电站工程区没有超过7级以上地震记录,工程区构造活动弱,处于相对稳定的构造地块中,区域构造稳定性总体较好。Nam Ngum 4 hydropower Station is located on the Nam Ngum River in Laos.It is a large(2)type RCC gravity dam.The height of the maximum dam is 74m,the length of the maximum dam is 228m,and the total installed capacity is 240MW.The engineering area crosses the junction of the East Indochinese plate and the West Indochinese plate,forming a very complex tectonic pattern.We analyzed the tectonic background,the main tectonic fault zone activity and seismic activity characteristics.The results show that there is no seismic record of magnitude 7 or above in the hydropower station engineering area,the structural activity is weak,the engineering area is in a relatively stable tectonic block,and the regional structural stability is generally good.

关 键 词：南俄四水电站 区域构造特征 地震 构造稳定性评价 

分 类 号：P315.723[天文地球—地震学]