吉林水利
吉林水利
길림수리
JI LIN WATER RESOURCES
2014年
2期
1-2,6
,共3页
黄珊%秦卫星%黎峰%蒋春艳
黃珊%秦衛星%黎峰%蔣春豔
황산%진위성%려봉%장춘염
反演分析%BP神经网络%防渗加固
反縯分析%BP神經網絡%防滲加固
반연분석%BP신경망락%방삼가고
inversion analysis%the BP neural network%anti-seepage reinforcements
准确获取石牛水库防渗加固后大坝渗透系数是评价其防渗加固效果的基础。结合石牛水库典型剖面的监测水头数据,利用BP神经网络反分析得出防渗加固后大坝各区域的渗透系数,并基于该组渗透系数采用有限单元法确定坝体浸润线的位置。计算所得的浸润线与实测浸润线位置接近,这表明反演所得渗透系数具有较高精度,能够为后续评估石牛水库的防渗加固效果提供可靠数据。
準確穫取石牛水庫防滲加固後大壩滲透繫數是評價其防滲加固效果的基礎。結閤石牛水庫典型剖麵的鑑測水頭數據,利用BP神經網絡反分析得齣防滲加固後大壩各區域的滲透繫數,併基于該組滲透繫數採用有限單元法確定壩體浸潤線的位置。計算所得的浸潤線與實測浸潤線位置接近,這錶明反縯所得滲透繫數具有較高精度,能夠為後續評估石牛水庫的防滲加固效果提供可靠數據。
준학획취석우수고방삼가고후대패삼투계수시평개기방삼가고효과적기출。결합석우수고전형부면적감측수두수거,이용BP신경망락반분석득출방삼가고후대패각구역적삼투계수,병기우해조삼투계수채용유한단원법학정패체침윤선적위치。계산소득적침윤선여실측침윤선위치접근,저표명반연소득삼투계수구유교고정도,능구위후속평고석우수고적방삼가고효과제공가고수거。
Getting accurate permeability coefficients of Shiniu reservoir after anti-seepage reinforcements is the basis to evaluate the reinforcements effects.The BP neural network is used to inverse the permeability coeffi-cients of Shiniu reservoir after anti-seepage reinforcements according to observed head data of the typical pro-file,and the saturation line position which simulated with the inversed permeability coefficients and finite ele-ment method.The calculated saturation line is close to the measured saturation line;it indicates that the per-meability coefficients of Shiniu reservoir after anti-seepage reinforcements through the inversion are precise;It can provide reliable data to evaluate the reinforcements effects of Shiniu reservoir.