【摘要】 按SL 274—2020《碾压式土石坝设计规范》,反滤层设计推荐采用谢拉德反滤层设计准则,根据被保护土特征粒径,全面介绍了反滤料特征粒径与包线的计算及拟定方法,给出了防渗体的裂缝渐行淤塞修复相应特征粒径约束条件,使土石坝坝体反滤层设计更合理、可靠。更多还原

【Abstract】 According to SL 274—2020 Design Code for Rolled Earth-rock Fill Dams, Sherard inverted layer design criteria are recommended. Based on the characteristic particle size of protected soil, the characteristic particle size of filter material and the envelope are calculated, and constraint condition for the closure and recovery of the crack in impervious body is presented, which make the inverted layer more reliable and reasonable.更多还原