PHYSICAL PROPERTIES OF SOIL PARTICLES AND THEIR EFFECT ON HYDRAULIC CONDUCTIVITY OF UNSATURATED DECOMPOSED GRANITE SOIL
PHYSICAL PROPERTIES OF SOIL PARTICLES AND THEIR EFFECT ON HYDRAULIC CONDUCTIVITY OF UNSATURATED DECOMPOSED GRANITE SOIL
复制标题
土颗粒物理性质及其对不饱和风化花岗岩土导水率的影响
DOI：
10.3208/sandf1972.21.4_1
复制
发表时间：
1981
期刊：
影响因子：
--
通讯作者：
Seiichi Sasaki
中科院分区：
文献类型：
--
作者：
Shin;K. Nishida;Seiichi Sasaki
本研究旨在探讨土壤颗粒理化性质对部分饱和风化花岗岩土壤导水率之影响。研究了渗透过程中含水量和土壤颗粒比表面积对渗透系数的影响。通过γ射线辐射法进行水含量测定，并且由使用汞压孔隙率计获得的孔径积分曲线计算比表面积。得出的结论是，比表面积可以与比重，表观比重，和50%的刻度曲线的大小。渗透性试验中测得的含水量可以通过γ射线辐射计数比立即估算。导水率与土壤的体积含水量和比表面积有关，而体积含水量和比表面积又与土壤颗粒的物理性质密切相关。（作者/TRRL）
The purpose of this study was to establish the influences of physico-chemical properties of soil particles on the hydraulic conductivity of partially saturated decomposed granite soil. The influences of water content during permeation and specific surface area of soil particles on the hydraulic conductivity were examined in detail. Water content determinations were made by a gamma ray radiation method, and specific surface area was calculated from the pore size integral curve obtained using a mercury pressure porosimeter. It was concluded that specific surface area can be correlated with specific gravity, apparent specific gravity, and the 50% size of the graduation curve. The water content measured during permeability tests can be estimated immediately by count ratio of gamma ray radiation. Hydraulic conductivity can be related to volumetric water content and specific surface area, both of which have a close relation to the physical properties of soil particles. (Author/TRRL)