钱塘江南岸西江塘海塘现场渗透试验观测成果分析

该文根据钱塘江南岸西江塘海塘现场渗透试验观测资料成果,结合标准塘建设及地质勘察资料,对试验堤段现有抗渗透能力进行了评估分析。分析发现围堰长时间维持高水位后,海塘的出渗会引起堤身发生渗漏和土体软化,增大了透水性,使渗流量剧增,海塘填筑的闭气土体防渗性能差异较大。文章还将测压管水位实测值与有限元计算值进行对比,对理论计算采用的渗透系数予以校验。

Analysis on Field Permeability Test Results of Xijiang Dyke at South Bank of Qiantang River

According to the field permeability test results of the Xijiang Dyke at the south bank of Qiantang River,and combined with the typical dyke construction and geological survey data,the article estimates and analyzes the existing anti-seepage capability of the test dyke section.The article finds found that the seepage will cause the dyke leakage and soil softening if the cofferdam maintains the high water level for long time,which increases the water permeability to make seepage runaway.There are greater diff...