Unconfined Compressive Strength Comparative Experimental Research of Sintered Snow with and Without Pressure
HUO Haifeng1,2, YANG Yajing1, SUN Tao3,*, FAN Rong4, CAI Jing1, HU Biao1
1 School of Transportation Science and Engineering, Civil Aviation University of China, Tianjin 300300, China 2 Ministry of Transport Airport Engineering Safety and Long Term Performance Research Base, Tianjin 300300, China 3 Army Logistics Academy of PLA, Chongqing 401331, China 4 China People's Liberation Army National Defence University, Beijing 100091, China
Abstract: Snow sintering is an important step in the construction of snow runways in high latitude cold regions around the world, which refers to the process of increasing strength of snow over time. In order to explore the strength change law of naturally deposited snow (sinter with pressure) and compacted snow layer (sinter without pressure), the sintered snow samples were studied by using self-developed pressurized equipment for unconfined compressive strength test. It was found that the unconfined compressive stress-strain curves presented both peak and no-peak strength forms, and the case with peak was more likely to occur under high pressure and long sintering time. The density of pressurized sintered snow samples grows with sintering time and shows the characteristics of fast and then slow, while the density of unpressurized sintering basically does not change. The strength and elastic modulus of pressurized sintered snow samples are greater than that of unpressurized sintering, and the growth rate of both are also greater than that of unpressurized. During the construction of snow runways, it is recommended to take 15 d as the design sintering time for compacted snow layers, and the unpressurized sintered snow strength slows down significantly after 15 d at sintering temperatures of around -10 ℃. The research results have excellent guidance for the determination of snow layer strength index and deformation index in the construction of snow runways.
霍海峰, 杨雅静, 孙涛, 樊戎, 蔡靖, 胡彪. 有压与无压烧结雪无侧限抗压强度对比试验研究[J]. 材料导报, 2024, 38(5): 23060124-6.
HUO Haifeng, YANG Yajing, SUN Tao, FAN Rong, CAI Jing, HU Biao. Unconfined Compressive Strength Comparative Experimental Research of Sintered Snow with and Without Pressure. Materials Reports, 2024, 38(5): 23060124-6.
1 Sommerfeld R A. Journal of Glaciology, 1971, 10(60), 357. 2 Fu X. Study on the thermal characteristics and mechanical properties of seasonal snow in Northeast China. Master's Thesis, Northeast Agricultural University, China, 2020 (in Chinese). 富翔. 东北地区季节性积雪热特性及力学性质研究. 硕士学位论文, 东北农业大学, 2020. 3 Mellor M, Smith J H. Strength studies of snow, US Army Materiel Command, Cold Regions Research & Engineering Laboratory Press, USA, 1966, pp. 3. 4 Abele G. Deformation of snow under rigid plates at a constant rate of penetration, Corps of Engineers, US Army Cold Regions Research & Engineering Laboratory, USA, 1970. 5 Abele G, Ramseier R O, Wuori A F. In: DA Task 1T062112A13001, Cold Regions Research-Applied Research and Engineering. Hanover, New Hampshire, 1968, pp. 5. 6 Capelli A, Reiweger I, Schweizer J. Frontiers in Physics, 2020, 8, 236. 7 Kinosita S. Physics of Snow and Ice: Proceedings, 1967, 1(2), 911. 8 Lintzén N, Edeskär T. Journal of Cold Regions Engineering, 2015, 29(4), 04014020. 9 Hong J L, Jiao F Q, Ying Y H, et al. Journal of Glaciology and Geocr-yology, 2022, 44(1), 251 (in Chinese). 洪嘉琳, 焦凤琪, 应咏翰, 等. 冰川冻土, 2022, 44(1), 251. 10 Hobbs P V, Mason B J. Philosophical Magazine, 1964, 9(98), 181. 11 Kuroiwa D. Tellus, 1961, 13(2), 252. 12 Dash J G, Fu H, Wettlaufer J S. Reports on Progress in Physics, 1995, 58(1), 115. 13 Colbeck S C. Journal of Geophysical Research: Oceans, 1983, 88(C9), 5475. 14 Kaempfer T U, Schneebeli M. Journal of Geophysical Research: Atmospheres, 2007, 112(D24), 1. 15 Gow A J, Ramseier R O. Journal of Glaciology, 1963, 4(35), 521. 16 Pomeroy J W, Brun E. Snow Ecology: An Interdisciplinary Examination of Snow-covered Ecosystems, 2001, 45, 118. 17 Hong J, Talalay P, Man T, et al. Journal of Glaciology, 2022, 68(272), 1. 18 Sun B, Tang X Y, Xiao E Z, et al. China Engineering Science, 2021, 23(2), 161 (in Chinese). 孙波, 唐学远, 肖恩照, 等. 中国工程科学, 2021, 23(2), 161. 19 White G, Mccallum A. International Journal of Pavement Research and Technology, 2020, 11(3), 311. 20 Cui X B, Liu J X, Tian Y X, et al. Marine Geodesy, 2019, 42(5), 422. 21 Gubler H. Journal of Glaciology, 1982, 28(100), 457. 22 Szabo D, Schneebeli M. Applied Physics Letters, 2007, 90(15), 151916. 23 Li T, Huo H F, Hu B, et al. Polar Research, DOI:10. 13679/j. jdyj. 20220436 (in Chinese). 李涛, 霍海峰, 胡彪, 等. 极地研究, DOI:10. 13679/j. jdyj. 20220436. 24 Schleef S, Löwe H. Journal of Glaciology, 2013, 59(214), 233. 25 Wang X, Baker I. Journal of Geophysical Research: Atmospheres, 2013, 118(22), 12. 26 Diemand D, Klokov V. In: Cold Regions Research and Engineering Laboratory. Hanover, New Hampshire, 2001, pp. 9. 27 Maeno N, Ebinuma T. The Journal of Physical Chemistry, 1983, 87(21), 4103. 28 Huo H F, Li T, Chen Q W, et al. Polar Research, DOI:10. 13679/j. jdyj. 20220423 (in Chinese). 霍海峰, 李涛, 陈庆炜, 等. 极地研究, DOI:10. 13679/j. jdyj. 20220423. 29 General Institute of Water Conservancy and Hydropower Planning and Design, Ministry of Water Resources, Nanjing Hydraulic Research Institute. GB/T 50123-2019, Standard for soil test method, Ministry of Housing and Urban-Rural Development of the People's Republic of China, State Administration for Market Regulation, China, 2019(in Chinese). 水利部水利水电规划设计总院, 南京水利科学研究院. GB/T 50123-2019 土工试验方法标准, 中华人民共和国住房和城乡建设部, 国家市场监督管理总局, 2019.