Large-Scale Model Testing of High-Speed Railway Subgrade under Freeze-Thaw and Precipitation Conditions
المؤلفون المشاركون
Zhang, Shasha
Wang, Yantao
Xiao, Fei
Chen, Weizhi
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-14، 14ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-06-23
دولة النشر
مصر
عدد الصفحات
14
التخصصات الرئيسية
الملخص EN
To determine whether coarse-grained saline soil meets the deformation requirements of the DY high-speed railway subgrade, a study was conducted by a combination of field-monitoring and laboratory tests.
First, several temperature sensors were buried vertically in the ground of a typical section, and the temperature at different depths was monitored for nearly one year and analysed dynamically.
It was determined that a depth of 4.8 m can be set as the constant-temperature layer.
Then, based on the field-monitoring results, laboratory tests were carried out on a large-scale subgrade model under freeze-thaw and precipitation conditions.
The change of temperature, moisture content, and soil deformation of the subgrade under long-term freeze-thaw and precipitation conditions were obtained.
The results show that the temperature changes periodically with a V shape during the entire cycle.
Twenty centimetres below the top surface is the sensitive depth of the sample, and salinity has little effect on temperature change.
In the process of cycles, the average moisture content of soils with higher salinity is about 0.5% lower than that of soils with lower salinity.
After nine freeze-thaw cycles, the sample finally shows dissolved settlement deformation.
Precipitation mainly affects the deformation of the sample; however, the influence on salt-expansion and frost-heave deformation is less significant.
Finally, by predicting the deformation of coarse saline soil, it is proven that the soil can meet the deformation requirements of high-speed railway foundations.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Zhang, Shasha& Wang, Yantao& Xiao, Fei& Chen, Weizhi. 2019. Large-Scale Model Testing of High-Speed Railway Subgrade under Freeze-Thaw and Precipitation Conditions. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1116175
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Zhang, Shasha…[et al.]. Large-Scale Model Testing of High-Speed Railway Subgrade under Freeze-Thaw and Precipitation Conditions. Advances in Civil Engineering No. 2019 (2019), pp.1-14.
https://search.emarefa.net/detail/BIM-1116175
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Zhang, Shasha& Wang, Yantao& Xiao, Fei& Chen, Weizhi. Large-Scale Model Testing of High-Speed Railway Subgrade under Freeze-Thaw and Precipitation Conditions. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1116175
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1116175
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