Physical Simulation Test on Temperature Field Distribution of Artificial Vertical Straight Multirow Freezing Inclined Shaft
| العنوان: | Physical Simulation Test on Temperature Field Distribution of Artificial Vertical Straight Multirow Freezing Inclined Shaft |
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| المؤلفون: | Jianxi Ren, Jielong Sun |
| المصدر: | Geofluids, Vol 2021 (2021) |
| بيانات النشر: | Hindawi-Wiley, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | QE1-996.5, Materials science, Field (physics), Article Subject, 0211 other engineering and technologies, Geology, 02 engineering and technology, Mechanics, Test method, 010502 geochemistry & geophysics, 01 natural sciences, Heat capacity, Compressive strength, Data acquisition, Thermal conductivity, Cohesion (geology), General Earth and Planetary Sciences, Elastic modulus, 021101 geological & geomatics engineering, 0105 earth and related environmental sciences |
| الوصف: | This study investigated the temperature field distribution of a freezing inclined shaft. Thus, a three-dimensional physical simulation test system was developed, and the system consists of six parts, which are simulation box and shaft model, loading system, freezing system, external environment simulation system, and data acquisition system. From the results of physical and mechanical property test of artificially frozen sand, in the range of 25°C to -20°C, the heat capacity of sand decreases first, then increases, decreases, and finally tends to be stable; the thermal conductivity of sand gradually increases and finally becomes stable; and the cohesion, internal friction angle, uniaxial compressive strength, and elastic modulus of artificially frozen sand all increase as the freezing temperature decreases. The three-dimensional physical simulation test and field measurement showed that the distance from the freezing pipe is the main factor affecting freezing wall temperature, and the closer to the freezing pipe, the faster the cooling rates. Comparison of theoretical calculation results and field measurement results shows that the calculation formula of freezing wall temperature with time of the inclined shaft can reflect the general law of freezing wall temperature cooling. Therefore, the 3D physical simulation test system is reliable and the test method is feasible. |
| وصف الملف: | text/xhtml |
| اللغة: | English |
| تدمد: | 1468-8123 1468-8115 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::561161203c7ce9a4982803fc1b835377 https://doaj.org/article/84fd574ba81c4627b484fd81cc0cf560 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....561161203c7ce9a4982803fc1b835377 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14688123 14688115 |
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