主辦單位：蘇州科技大學(xué)37000cm威尼斯

　　　　　37000cm威尼斯青年教師發(fā)展委員會

　　　　　37000cm威尼斯關(guān)工委

報告內(nèi)容簡介：

The study evaluates the reliability of the WP4C chilled-mirror dew-point hygrometer, commonly used for measuring soil total suction using the vapor equilibrium technique. It found discrepancies between the WP4C measurements for soil specimens and those for the corresponding vapor equilibrium saline solution, particularly when measuring suctions below 10 MPa. This variance was attributed to differences in vapor diffusion, arising from the presence of both liquid and solid evaporation surfaces in soil, unlike the solely liquid surface in saline solutions.

To address this, the study altered the WP4C sample cups to expose varying solution surface areas, which represent different volumetric water contents in soil. Findings indicated that total suction measurements increased as the solution surface area decreased. Using these observations, a new correction equation for the WP4C was developed and validated with experimental data and literature review, significantly enhancing the device’s measurement precision.

主講人簡介：

Hossam Abeul-Naga 教授，現(xiàn)任澳大利亞拉籌伯大學(xué)土木工程系主任，重慶大學(xué)兼職教授。曾擔(dān)任英國曼徹斯特大學(xué)巖士工程系系主任、新西蘭奧克蘭大學(xué)高級講師、澳大利亞莫納什大學(xué)研究員。二十五年來，主要從事多場耦合下的土體物理力學(xué)特性研究，具體方向包括:核廢料處理技術(shù)、甲烷水合物開采技術(shù)能源地下結(jié)構(gòu)與工程、土體改良技術(shù)、填埋襯砌系統(tǒng)等。擔(dān)任匹個國際或地區(qū)學(xué)報編委。先后主持科研基金9項，研究經(jīng)費(fèi)超過100萬澳元，在巖土領(lǐng)域國際著名期刊上發(fā)表論文100余篇，被引用超過2000次。其中，2007年于Canadian Geotechnical Journal 期刊上發(fā)表的飽和土體熱力學(xué)本構(gòu)模型被國際公認(rèn)為該領(lǐng)域的先進(jìn)模型之一，2008年于Geotextilesand Geomembranes 期刊上發(fā)表的論文被評為該期刊最優(yōu)秀的五篇論文之一。