摘要
土石坝心墙中孔隙水压力的变化常滞后于库水位的升降。通过对鲁布革坝心墙孔隙水压力的统计分析，提出一个新的统计方法，即比较不同时段内库水位平均升降速率与孔隙水压力的关联度，采用关联度最大的库水位平均升降速率和库水头为变量，进行测点孔隙水压力的统计分析。其复相关系数和标准差均得到了显著地改善。
The changes of pore water pressure in the core wall of earth - rockfill dam are generally delayed relating to that of the reservoir level. Based on statistic analysis of the pore water pressure in core wall of Lubuge dam, a new method is proposed, that is, to take the average rate of the rise and fall of reservoir level and its water head with the maximum degree of correlation as the variables, and then make statistic analysis of pore water pressure for measuring points, as a result, the coefficient of multiple correlation and standard deviation are improved significantly.
关键词
土石坝
心墙
孔隙水
压力
统计分析
statistical analysis
pore water pressure
earth-rockfill dam
