一、监测的由来天福庙拱坝是湖北省重点险坝之一。该坝为浆砌块石双曲拱坝,坝高63.3米,总库容0.6亿立米1974年仓促上马,1978年建成。建成后坝肩稳定分析结果是安全系数均小于1,最低的只有0.69,因此,被迫降低蓄水位运行(蓄水量减少1/3～1/4),等待加固。1982年进行了工程地质与水文地质勘测、岩体力学试验和分析计算,两坝肩稳定安全系数也均小于1,即使维持低水位运行,也须适当加固(加固费用约6～7百万元)。这一结论是否符合实际情况,需要通过可靠的检测加以验证。为此,中国科学院武汉岩土力学研究所计划结合加固 First, the origin of the monitoring Tianfu Temple arch dam is one of the key dams in Hubei Province. The dam is a masonry stone double arch dam, dam height of 63.3 meters, total storage capacity of 0.6 billion cubic meters was hasty launched in 1974, completed in 1978. After the completion of the dam abutment stability analysis results are less than 1 safety factor, the lowest is only 0.69, therefore, was forced to reduce the water level operation (water storage reduced 1/3 ~ 1/4), waiting for reinforcement. In 1982, engineering geology and hydrogeology investigation, rock mechanics test and analysis calculation were carried out. The stability safety factor of both abutments was also less than 1, and should be properly reinforced (the cost of reinforcement was about 6-7 million yuan ). Whether this conclusion is true or not needs to be verified through reliable testing. To this end, the Institute of Rock and Soil Mechanics, Chinese Academy of Sciences plans to combine reinforcement