常水头 meaning in English
constant head permeability test
Examples
- Constant head permeability test
常水头渗透试验 - Standard test method for permeability of granular soils constant head
在常水头压力下颗粒状土壤渗水率的标准试验方法 - Constant head permeability
常水头渗透试验 - Based on the lab orthogonal tests , using self - manufactured constant head permeameter , the effect of gravel content , void ratio and particle shape on the coefficient of permeability of soil - rock - mixture was studied
本文采用室内正交实验，利用自制的常水头渗透仪，研究了砾石含量、孔隙比和颗粒形状3个因素在不同水平下对土石混合体渗透系数的影响。 - In order to understand the characteristics and mechanism of flow washout for the crevice of core wall in earth - rock dam , according to the exemple of crack washout test for the core of heihe dam , constant water level washout test and changing water level washout test are adopted differently , the process of test and the character of the flow washout for the core crack are gone into particulars
摘要为了解水流冲刷作用下反滤层对土石坝心墙裂缝发展保护作用的特点和机理，以黑河土石坝心墙裂缝冲刷试验为例，分别采用常水头和变水头两种方法，探讨了土石坝心墙裂缝在水流冲刷过程中的特点。