Triaxial Permeability Testing on the sythetic Leachate Effect on the Hydraulic Conductivity of Clayey Soil
Publish place: 7th International Congress on Civil Engineering
Publish Year: 1385
نوع سند: مقاله کنفرانسی
زبان: English
View: 1,335
This Paper With 8 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
ICCE07_595
تاریخ نمایه سازی: 29 دی 1384
Abstract:
Triaxial permeability apparatus with the fabricated bladder accumulators were used to examine the effect of synthetic leachate on the change of hydraulic conductivity of clayey Soil . A silty clayey sand sample was obtained from Urmia City landfill site and mixed with 12% clayey soil to obtain a soil with optimal characteristics suitable as a liner material for landfill. The synthetic leachate was prepared with there different Ca++ concentrations concentrations were used is synthetic leachate and the hydraulic conductivities of 1.33*10-8 cm/s, 1.81*10-8 cm/s, and 1.77*10-8 cm/s were obtained for the soil permeated with synthetic leachate, compared with the average hydraulic conductivity of Ca++ contraction caused about 13% reduction in hydraulic conductivity in the first test which could be due to decrease in void ratio because of consolidation of the sample induced by osmotic flow. The percentages of increase of hydraulic conductivity for two other tests in comparison with the values for tap water permeation were 18% and 20% respectively. This increase is attributed to double layer contraction and increased pore space, resulting from the adsorption on divalent cations into the soil matrix.
Keywords:
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :