论文部分内容阅读
小浪底水库于 1999年 10月 2 5日下闸蓄水 ,10月 2 7日～ 11月下旬右岸 1号排水洞、左岸 2号排水洞与F2 3 6断层交汇处相继出现渗水现象。由于岩层渗透性能与勘探结果有较大差异 ,加之 2 0 0 0年 2月至 2 0 0 1年 5月又取得了一定数量的渗压观测及渗漏量观测资料 ,因此特提出对 2 0 6 .0m库水位情况下左、右两岸各岩层的渗透系数值进行反馈分析。反馈分析采用复合形法对渗流的逆问题进行求解 ,即根据实际观测的渗流资料反馈各岩层的渗透系数 ,从而推得小浪底水库右岸主要岩层的最佳渗透系数值 ,并利用反馈计算结果预测高水位情况下的渗流量
The Xiaolangdi Reservoir was closed for water storage on the 25th of October, 1999, and water seepage occurred one by one on the right bank of No. 1 drainage tunnel on the 2nd of 27th of October to the late of 2nd of November. Due to the great difference between rock permeability and exploration results, and from February 2000 to May 2001, a certain amount of seepage pressure observation and leakage observation data have been obtained. Therefore, Under the conditions of 6.0m reservoir water level, the permeability coefficients of each rock strata on the left and right sides of the strait are analyzed by feedback analysis. The feedback analysis uses the complex method to solve the inverse problem of seepage flow. That is, the optimal permeability coefficient of the main rock strata of the right bank of Xiaolangdi Reservoir is fed back according to the observed seepage data and the permeability coefficient of each rock strata is estimated. Seepage at water level