摘要
根据常水头渗透试验原理及参考TST-70常水头渗透仪,在考虑侧壁渗漏、套筒尺寸及测压管位置等因素的基础上,设计了一种简单实用的常水头多孔混凝土渗透仪。通过试验,提出大孔混凝土渗透系数测定的试验操作过程及数据处理方法 ,测试了大孔混凝土在不同配合比时的渗透系数。结果表明多孔混凝土具有良好的排水性能并初步验证了该装置的有效性。
According to the measurement principle of constant head permeability test and the design principle of TST-70 constant head permeability apparatus, a simple and practicable constant head permeability apparatus of porous concrete is developed on the basis of consideration of side wall leakage, sleeve dimension and location of pressure meters. Test result shows that porous concrete has fine drainage perfor mance and preliminary validate the effectiveness of the device.
出处
《公路》
北大核心
2012年第1期152-156,共5页
Highway
关键词
大孔混凝土
渗透系数
常水头
porous concrete
permeability coefficient
constant head permeability
