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Seepage Causes and Treatment of Structural Joints in Foundation Corridor of Qiaoqi Dam
Author(s): 
Pages: 72-76
Year: Issue:  2
Journal: Hydropower Automation and Dam Monitoring

Keyword:  dam safety monitoringfoundation corridorstructural jointseepageBP neural network model;
Abstract: 从变形和测压管水位2个方面对硗碛大坝坝基廊道纵0+168.12结构缝渗漏原因进行了分析,结果表明结构缝变形过大是造成渗漏的根本原因。对结构缝进行水溶性聚氨酯灌浆处理后,渗漏现象消失,结构缝左侧、防渗体下游的测压管水位仍与库水位相关,但呈逐年下降的趋势;采用BP神经网络模型对坝后渗流量进行分析和预报,结果表明坝后渗流量基本稳定,从而得出水溶性聚氨酯灌浆处理对于改善该结构缝的防渗性能具有明显效果,但结...
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