Results 21 to 30 of about 9,019 (250)

Measurement of Suction Pressure Generated in the Process of Frost Heaving in Rock

Journal of MMIJ, 2017
Recently it has been found that frost heave phenomena can be seen not also in soil but also in rock. It is obvious, however, that the number of researches on frost heaving in rock is much less than that of researches on frost heaving in soil.
Dai NAKAMURA, Takayuki KAWAGUCHI, Tatsuya WATANABE, Shunzo KAWAJIRI, Shintaro YAMASAKI, Satoshi YAMASHITA   +5 more
doaj   +1 more source

A Simplified Viscoelastic Solution of the Frost Heaving Force of Cavity Water behind Tunnel Linings

Advances in Civil Engineering, 2020
With the high demand for construction of tunnels in China’s severe cold regions, the problem of frost heaving has become an important factor that endangers tunnel safety.
Jie-Tao Guo, Zhe-Ming Zhang, Yao-Lan Tang, Jian Ji   +3 more
doaj   +1 more source

Sensitivity of freezing and thawing influencing factors of pipeline foundation soils in permafrost region

You-qi chuyun, 2020
For the oil and gas pipeline operating in the permafrost regions, buckling deformation is usually caused by frost heaving and thaw settlement of the foundation soil, which affects the safety and stability of pipeline seriously.
Wei WANG, Wenyou DU, Yangang TANG, Weiyan XIA, Huanan LIU, Yan LYU   +5 more
doaj   +1 more source

Experimental Investigation on Frost Heaving Force (FHF) Evolution in Preflawed Rocks Exposed to Cyclic Freeze-Thaw Conditions

Geofluids, 2021
This work is aimed at investigating the structural deterioration and the frost heaving force evolution characteristics of flawed rocks using a self-developed frost heaving force (FHF) measurement system. Three kinds of preflawed rocks with different flaw
Yu Wang, Tao Sun, Haonan Yang, Jinfeng Lin, Hao Liu   +4 more
doaj   +1 more source

Calculation method and analysis of horizontal frost heave effect of L-shaped retaining wall in permafrost regions

Rock and Soil Mechanics, 2022
In view of the imperfection of the calculation method of horizontal frost heaving force in the design of L-shaped retaining wall in permafrost area, based on the Lifkin foundation model and the cooperative deformation principle between retaining wall and
DONG Jian-hua, WU Xiao-lei, SHI Li-jun, YU Xiao-yan, HE Peng-fei   +4 more
doaj   +1 more source

Altération des substrats rocheux et rôle du soulèvement gélival dans la formation des champs de blocaille, en Hudsonie [PDF]

, 1987
Depuis la déglaciation (7500 ans BP) et le retrait de la mer de Tyrrell, les cuestas hudsoniennes sont soumises aux agents d'érosion périglaciaires. Les surfaces rocheuses composées principalement de basalte, de dolomie et d'arkose, montrent, en moyenne,
Dionne, Jean-Claude, Michaud, Yves
core   +1 more source

Experimental Evaluation of Multiple Frost Heaving Parameters for Preflawed Granite in Beizhan Iron Mining, Xinjiang, China

Geofluids, 2021
Ice-driven mechanical weathering in cold regions is considered a main factor impacting the stability of rock mass. In this work, the response surface method (RSM) was employed to evaluate and optimize the multiple frost heaving parameters to seek the ...
Yu Wang, Dayu Long, Zulifeiya Rejuti, Huajian Wang   +3 more
doaj   +1 more source

The Dynamical Hypothesis in Situ: Challenges and Opportunities for a Dynamical Social Approach to Interpersonal Coordination

Topics in Cognitive Science, EarlyView., 2023
Abstract Over the past three decades, Van Gelder's dynamical hypothesis has been instrumental in reconceptualizing the ways in which perception‐action‐cognition unfolds over time and in context. Here, I examine how the dynamical approach has enriched the theoretical understanding of social dynamics within cognitive science, with a particular focus on ...
Alexandra Paxton
wiley   +1 more source

Experimental analysis of horizontal frost heaving force of loess in Lanzhou City of Gansu Province Area

Zhongguo dizhi zaihai yu fangzhi xuebao, 2021
In order to study the variation of temperature field and horizontal frost heaving force during the one-dimensional freezing and melting process of loess with different water content, the one-dimensional freezing and melting test under closed system was ...
Zheng ZHANG, Xuening MA, Qiyou ZHU
doaj   +1 more source

Stratification mechanisms in slope deposits in high subequatorial mountains [PDF]

, 1990
An analysis of the processes active in the frost environment of high subequatorial mountains makes it possible to propose a model for the stratification of slope deposits.
Francou, Bernard
core   +1 more source