4) the effect of soil compacting 挤土影响 1. Analyze how the effect of soil compacting is brought and how much area is affected by the effect in the process of driving pile in the soft foundation soil disuss the measures to reduce the effect of soil compacting and protect the pipe ...
Therefore, permafrost effect cannot be neglected in seismic design of railway bridge pile foundations with elevated cap.doi:10.1142/S0219455422410024Zhang, XiyinGuan, JiadaChen, XingchongPei, WanshengYu, ShengshengWang, YiWang, WanpingWorld Scientific Publishing CompanyInternational journal of structural ...
Then there is thawing permafrost’s effect on the planet’s carbon: Arctic permafrost alone holds an estimated 1,700 billion metric tons of carbon, including methane and carbon dioxide. That’s roughly 51 times the amount of carbon the world released as fossil fuel emissions in 2019. Plant ma...
Analysis on Cooling Effect of Crushed-Rocks Embankment of Qinghai-Tibet High-Grade Road In order to study the cooling effect of the crushed-rocks embankment, the permeability and the inertial resistance coefficient were measured by the wind tunnel test of spheres with a diameter of 20cm, and then...
2003 flooded much of the study area, which may have had a dampening effect on respiration. A seasonal shift in the flux-temperature relationship was not evident at the PP sites, where a single exponential relationship was main- tained throughout the study period. Soil respiration responded most...
aEffect of permafrost thawing on organic carbon and trace element colloidal speciation in the thermokarst lakes of western Siberia 解冻在有机碳和痕量元素胶质物种形成的永冻土的作用在西西伯利亚的thermokarst湖 [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 西班牙语翻译 ...
of the effect of snow cover on the ground surface temperature demonstrates the importance of active layer freezeback on the freezing n factor, as well as the importance of the mean annual temperature at the base of the active layer... Riseborough, Daniel Ward. - Carleton University (Canada)....
Bodies of water,lakes, rivers, and the sea, have a profound effect on the distribution of permafrost. A deeplakethat does not freeze to the bottom during the winter will be underlain by a zone of thawed material. If the minimum horizontaldimensionof the deep lake is about twice as much ...
S . E . Brown . 1961 . . Effect of 'a lake on distribu- tion of permafrost in the Mackenzie River . delta . Nature 1972 (4799) : 251-252 .Johnston, G., and R. Brown (1961), Effect of a lake on distribution of permafrost in the mackenzie river delta, Nature, 192, 251-252....
展开 摘要: Small-scale polygonal patterns have been observed on Mars and may have been formed by thermal contraction in ice-cemented permafrost. The seasonal tensile stress in martian permafrost is calculated at various climatic conditions to evaluate polygon formation. 展开 年份: 1999 收藏...