Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental Study on the Effect on Stress Release Holes to Decrease Frost Heaves of Fine Particle Fillers in Northern China
Seasonal frozen ground is mainly distributed in the north of 30°N, with an area of 5.137 million km2, covering approximately 53.5% of the national territory in China. In recent years, with the rapid development of Chinese railway, many lines have been built passing through seasonal frozen areas. At the same time, with the increase of traffic volume, transport capacity would become larger year by year, so the requirements of low frost heave for the subgrades would also be made more stringent. Based on the stress release holes (SRHs), several special experiments are designed and implemented in a one-dimensional freezing condition from a sample’s top to bottom, which are targeted to verify the effectiveness and feasibility of SRHs on decreasing frost heaves. Also, a measure to decrease frost heave of subgrade filler in seasonal frozen area is proposed. There are seven laboratory tests carried out in the open system. And the frost heave effect of saturated soil samples within 72 h was explored with a certain HRA set as 4% and SRHs filling materials.
Experimental Study on the Effect on Stress Release Holes to Decrease Frost Heaves of Fine Particle Fillers in Northern China
Seasonal frozen ground is mainly distributed in the north of 30°N, with an area of 5.137 million km2, covering approximately 53.5% of the national territory in China. In recent years, with the rapid development of Chinese railway, many lines have been built passing through seasonal frozen areas. At the same time, with the increase of traffic volume, transport capacity would become larger year by year, so the requirements of low frost heave for the subgrades would also be made more stringent. Based on the stress release holes (SRHs), several special experiments are designed and implemented in a one-dimensional freezing condition from a sample’s top to bottom, which are targeted to verify the effectiveness and feasibility of SRHs on decreasing frost heaves. Also, a measure to decrease frost heave of subgrade filler in seasonal frozen area is proposed. There are seven laboratory tests carried out in the open system. And the frost heave effect of saturated soil samples within 72 h was explored with a certain HRA set as 4% and SRHs filling materials.
Experimental Study on the Effect on Stress Release Holes to Decrease Frost Heaves of Fine Particle Fillers in Northern China
Lecture Notes in Civil Engineering
Tutumluer, Erol (Herausgeber:in) / Nazarian, Soheil (Herausgeber:in) / Al-Qadi, Imad (Herausgeber:in) / Qamhia, Issam I.A. (Herausgeber:in) / Tang, Tianxiao (Autor:in) / Shen, Yupeng (Autor:in) / Liu, Xin (Autor:in) / Zuo, Ruifang (Autor:in)
17.09.2021
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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