Abstract:
Transient seepage analysis in unsaturated soils requires the soil-water characteristic curves (SWCCs) and permeability functions. Very often, the soil-water characteristic of a soil at high suction range (>500 kPa) is obtained by extrapolating laboratory-determined SWCC at low suction range (0 to 500 kPa) using semi-empirical fitting methods. Relatively few measurements of SWCCs have been made on decomposed soils at high suctions. In this study, SWCC at low suctions of a completely decomposed tuff (CDT) in Hong Kong was measured using pressure plate apparatus, whereas the SWCC at high suctions was measured using the relative humidity (RH) control technique. Hence, the SWCC of CDT at "full suction range" is obtained by combining the measured data at low and high suctions. Comparisons and evaluations are then made with the extrapolated data using several existing semi-empirical fitting methods.
Full Context:
https://drive.google.com/file/d/0B4hiGhsfDllxX1FLaW4yZDB2X1k/view
主站蜘蛛池模板: 商城县| 韶关市| 龙岩市| 大姚县| 大余县| 西乌珠穆沁旗| 朝阳县| 乡宁县| 蒙自县| 彭泽县| 康乐县| 烟台市| 斗六市| 莎车县| 太湖县| 五指山市| 安国市| 桐柏县| 扎囊县| 安平县| 宁海县| 吴川市| 剑河县| 隆子县| 贵阳市| 高邑县| 扎赉特旗| 海盐县| 内丘县| 突泉县| 阳泉市| 宁强县| 永川市| 全州县| 偃师市| 浦城县| 平山县| 澄迈县| 天等县| 龙南县| 家居|