摘要
为检验陕西省榆林市神木县采兔沟水库大坝的灌浆加固处理效果,保证水库安全运行,采用自动监测系统对泄洪洞沉降进行了长期观测,将获得的沉降观测资料估算沉降量及其发展规律以评价大坝地基稳定性。利用蠕变经验模型与指数曲线模型对大坝地基沉降进行拟合预测,分析讨论了两种模型的适用性。结果表明:蠕变经验模型预测曲线与指数曲线模型预测曲线均与原始观测数据的拟合程度接近,能较好地反映灌浆加固处理后大坝沉降的规律,两者相互印证,提高了大坝沉降预测的可靠度。
In order verify the effect of the grout improvement and to ensure the operation safety of the Caitugou Dam of Shenmu County, Yulin City in Shaanxi Province, the automatic monitoring system was used to monitor the long term settlement at the spillway tunnel. The monitored data were also used to evaluate the stability of the dam foundation. Both the empirical creep model and the exponential creep model are used in fitting the observed dam settlement data. The results indicate that both mod- els can provide satisfactory results for the settlement prediction.
作者
胡喜艳
彭环云
李建中
HU Xiyan PENG Huanyun LI Jianzhong(School of Geosciences and Info-physics, Central South University, Changsha 410083)
出处
《土工基础》
2017年第2期193-196,共4页
Soil Engineering and Foundation
基金
国家自然科学基金项目(41572269)
关键词
蠕变经验模型
指数曲线模型
大坝沉降预测
Empirical Creep Model
Exponential Model
Dam Settlement Prediction
