Laboratory Investigation and Modelling of the Thermal-Mechanical Properties of Soil in Shallow Mineralized Groundwater Area
المؤلفون المشاركون
Liu, Xiao-ming
Xia, Zhao
Gu, Jiali
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-21، 21ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-11-04
دولة النشر
مصر
عدد الصفحات
21
التخصصات الرئيسية
الملخص EN
The capillary rise of shallow mineralized groundwater can contribute to the salinization of the soil layers.
The excessive salt amounts adversely affect soil physical and mechanical properties, as well as the heat transfer performance, all of which are key factors with regard to the design of geothermal-related earth structures such as geothermal energy piles (GEP), ground source heat pumps (GSHP), and earth-air tunnel heat exchangers (EATHE).
Therefore, in this study, the thermal-mechanical properties of saline soils are systematically investigated.
A series of thermal and mechanical response tests were carried out under different salinity conditions, and the shear wave velocity-stress behavior of saline soil was measured using a modified oedometric cell coupled with an anchored bender element pair.
Experimental results showed that saline soils generally have higher dry density and lower optimum moisture content at higher salt contents.
The shear strength of saline soil increased about 5% while the salt concentrations of bulk solution increased from 0 mol/kg to 6 mol/kg, and the shear wave velocity increased by 50% to 83% when the normal load increased from 12.5 kPa to 250 kPa for sodium chloride- (NaCl-) treated soil and 39% to 52% for calcium chloride- (CaCl2-) treated soil.
In addition, the thermal conductivity decreased by 0.121 W m-1 K-1 for NaCl-treated soil and 0.129 W m-1 K-1 for CaCl2-treated soil on average when the salt concentration increased from 0 mol/kg to 6 mol/kg.
Finally, an elastic shear modulus (G0) model and a thermal conductivity (K) model were formulated for saline soil for the first time, and the effectiveness and feasibility of the proposed models were validated by comparisons of the model predicted values and experimental data.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Xia, Zhao& Liu, Xiao-ming& Gu, Jiali. 2019. Laboratory Investigation and Modelling of the Thermal-Mechanical Properties of Soil in Shallow Mineralized Groundwater Area. Geofluids،Vol. 2019, no. 2019, pp.1-21.
https://search.emarefa.net/detail/BIM-1153684
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Xia, Zhao…[et al.]. Laboratory Investigation and Modelling of the Thermal-Mechanical Properties of Soil in Shallow Mineralized Groundwater Area. Geofluids No. 2019 (2019), pp.1-21.
https://search.emarefa.net/detail/BIM-1153684
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Xia, Zhao& Liu, Xiao-ming& Gu, Jiali. Laboratory Investigation and Modelling of the Thermal-Mechanical Properties of Soil in Shallow Mineralized Groundwater Area. Geofluids. 2019. Vol. 2019, no. 2019, pp.1-21.
https://search.emarefa.net/detail/BIM-1153684
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1153684
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر