混合岩风化土作为心墙防渗料的研究及应用

Application of Weathering Rock Mixed Soil as Core Wall Impervious Material

混合岩风化土是一种成分比较复杂的粗粒土,天然状态下颗粒组成包括软弱的风化岩块、砂粒、细粒土等,级配范围分布较广。经过碾散、击实后颗粒组成以砂粒、粉粒、粘粒为主,级配变化较大。结合工程需要,对其作为心墙防渗料的特性进行了试验研究,论证了混合岩风化土可作为心墙防渗料的可行性,并在施工中得到进一步验证,工程运行效果良好。

Weathered rock mixed soil is complex composition of the coarse-grained soil,the natural state of particles,including weak weathered rock,sand,fine-grained soil,etc.,distribute over a wider range of gradation.Particles with sand,silt,clay-based after compaction greatly change grade distribution.With engineering needs,as its core wall impervious material characteristics are studied,demonstrating its impervious material can be used as the feasibility of the core wall.It verifies in the construction.