吉林水利
吉林水利
길림수리
JI LIN WATER RESOURCES
2011年
9期
40-43
,共4页
监测数据%扬压力%时效因子%回归分析
鑑測數據%颺壓力%時效因子%迴歸分析
감측수거%양압력%시효인자%회귀분석
monitoring data%uplift pressure%time factor%regression analysis
影响坝基扬压力大小的因素众多,如上、下游水位、排水系统、降雨及渗透作用等。综合某流域的水电站工程概况及气候特征和地形条件,采用逐步回归的方法建立统计模型来分析水位分量、温度分量和时效分量对扬压力的影响,得到各测点扬压力的极值、年变化率、年变幅和回归值、时效因子等图表。通过计算分析,运用该模型分析实测资料,其分析结果与实测值拟合较好,说明该坝基防渗效果良好。
影響壩基颺壓力大小的因素衆多,如上、下遊水位、排水繫統、降雨及滲透作用等。綜閤某流域的水電站工程概況及氣候特徵和地形條件,採用逐步迴歸的方法建立統計模型來分析水位分量、溫度分量和時效分量對颺壓力的影響,得到各測點颺壓力的極值、年變化率、年變幅和迴歸值、時效因子等圖錶。通過計算分析,運用該模型分析實測資料,其分析結果與實測值擬閤較好,說明該壩基防滲效果良好。
영향패기양압력대소적인소음다,여상、하유수위、배수계통、강우급삼투작용등。종합모류역적수전참공정개황급기후특정화지형조건,채용축보회귀적방법건립통계모형래분석수위분량、온도분량화시효분량대양압력적영향,득도각측점양압력적겁치、년변화솔、년변폭화회귀치、시효인자등도표。통과계산분석,운용해모형분석실측자료,기분석결과여실측치의합교호,설명해패기방삼효과량호。
there are many factors affect the foundation uplift pressure,such as the water table of upstream and downstream,drainage system,rainfall and infiltration,etc.It comprehensively overviews a hydropower project in a basin and climate characteristics and terrain conditions,with stepwise regression method,and establishes a statistical model to analyze water quantity,temperature,and time components of the impact of the uplift pressure,and gets the extreme uplift pressure measuring point,the annual change rate,the annual amplitude and return value,time factor and other charts.Through computational analysis,using the model analyses the measured data,the results fit well with the measured values,it indicates that the foundation has a good anti-leakage effect.
