混凝土面板堆石坝坝基深厚覆盖层处理设计与试验研究分析

将混凝土面板堆石坝坝基建在深厚覆盖层上,可减少开挖工程量,对降低工程成本和缩短工期是有益的。坝基河床覆盖层是否挖除,要视其工程地质特性和变形量级而定。采用高能级强夯处理,施工方便,可有效提高覆盖层承载能力,减小坝体的后期变形,保证大坝安全运行。

Test, analysis and treatment design of deep foundation overburden for CFRD

The excavation quantity may be reduced if a CFRD foundation is set on deep overburden,which is benificial for reducing project cost and shortening construction period.Whether the river bed overburden of dam foundation should be removed depends on engineering geological features and deformation magnitudes.High intensive tamping is easy for construction,which can increase the bearing capacity of the overburden effectively,reduce the late deformation of the dam and ensure its safe operation.