摘要
佛子岭连拱坝已运行４０多年，由于坝体杆件单薄，坝基地质条件较复杂，坝体出现较多裂缝。虽经二次加固，但旧裂缝仍在扩展并有新裂缝产生，尤其在１９９３年１１月下旬，河床坝垛的水平位移超过历史最大值。为此，电力工业部提出对佛子岭大坝进行特种检查。通过对佛子岭大坝的观测资料全面分析，弄清了１９９３年１１月下旬出现“异常”变形的物理成因，并由此引出该坝稳定、变形和强度（即裂缝）的不利荷载工况，提出了运行控制水位。
The multiple arch dam in Fozhiling Reservoir has been operated for more than 40 years. With the thin dam body and complicated foundation geological conditions, many cracks have occurred in the dam body. Although two reinforcements have been conducted, the old cracks have been still extending and new cracks have been created, especially the horizontal displacement of the river bed buttress had exceeded the historial maximum recorded valve in the last ten days of November, 1993. Thus, the Ministry of Power Industry has put forward the special check on the monitoring data in Fozhiling Dam, the physical causes of abnormal deformation occured in the last ten days of November, 1993 have been found out and the unfavorable load work conditions, such as dam stability, deformation and strength (cracks), have been introduced. Some measures of operation and centrol water level have been set up.
出处
《水力发电》
北大核心
1996年第11期46-49,共4页
Water Power
关键词
水库
连拱坝
变形
异常
物理成因
Fozhiling Reservoir
multiple arch dam
deformation
abnormal
physical causes
