Loess flow
WitrynaErratum for ‘Rapid loess flow slides in Heifangtai terrace, Gansu, China’ Quarterly Journal of Engineering Geology and Hydrogeology , 50, 106–110. Article. Nov 2024; Jianbing Peng; WitrynaThe Yellow River’s basin area is 752,443 km 2 (290,520 mi 2 ), containing about 200,000 km 2 (77,000 mi 2) of arable land and over 100 million people. The average flow rate of the Yellow River is 1,800 cubic meters per second. Its biggest tributary is the Wei River, which flows past Xi'an. The Upper Reaches of the Yellow River
Loess flow
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WitrynaPerched water table was significantly raised and resulted in many loess flow failures in the past 30 years. This type of landslide was often featured by long runout distance, high speed and recurrence. Laboratory tests along ICU and CSD stress paths were performed. It is shown that the loess has a strong strain-softening behavior and ... Witryna1 lis 2013 · The loess flows initiated at the contact between loess and underlying clay and can travel a distance of more than 300 m at a speed of up to 5 m/s. Controlled by …
WitrynaThe structural evolution, hydro-mechanical behavior, and failure mechanism of loess soil and its impacts on the landslides in loess landscape systems. 2. Modeling the … Witryna27 lis 2024 · Loess is very widely distributed, and the unsaturated hydraulic conductivity of loess is related to many engineering issues. To determine the unsaturated hydraulic conductivity of remoulded loess more conveniently and at a lower cost, filter paper test and soil column seepage test were carried out.
Witryna22 lut 2011 · Loess flow failure. The clay underlying the loess acts as an impermeable layer at Heifangtai. Long-term irrigation has raised the perched water table … Witryna14 gru 2024 · The dry loess flowing on excavation face. After the loess with a large porosity ratio is immersed and saturated, the original structure of the loess Q3 and upper Q2 is destroyed largely by subjecting to collapsing deformation disturbance. When the deformation is caused by excavating, the loess structure will change further.
WitrynaLi Luo's 3 research works with 18 citations and 62 reads, including: Unique landslides (loess slide-flows) induced by an extreme rainstorm in 2024 on the Loess Plateau: A …
WitrynaSoil erosion in sloping cropland is a major water and soil conservation issue in the Loess Plateau region, one of the main areas with sloping cropland in China. However, the effect of crop root systems, a major factor potentially influencing soil and water conservation in cropland, on farmland erosion, remains unclear. In the present study, soil erosion was … cdl training janesville wiWitryna16 paź 2024 · The types of landslides include loess-bedrock planar slide, loess flow, loess flowslide, and loess slide . Several scholars have reported that rising groundwater levels aggravate the saturated area of loess and that the matrix suction inside a slope decreases under saturated water conditions [3,4]. cdl training ivy techWitryna13 kwi 2024 · Specifically, the permeability coefficient of the loess with low compaction degree (1.35 g/cm 3) decreases by 87% after the addition of 3% SHP. Moreover, the permeability coefficient of the loess with a compaction degree of 1.50 g/cm 3 decreases from 1.58 × 10 −6 to 7.9 × 10 −8 cm/s. butter bean recipes hambutter bean recipesWitryna22 gru 2024 · Loess flow slide are usually 1.5–3 m thick, while clayey flow slides can be 8–10 m thick. Study of the eroded landslide dams produced by the flow slides show that their volume can comprise up to 30% of the entire flow slide volume if it crosses the dammed valley, and up to 80% if the flow slide moves along the valley. ... cdl training jamestown nyWitrynaIn the Loess Plateau, the effects of run-on may be significant, because of the deep and loose surface soil layer. In this study, the role of run-on for overland flow in the Upper Wei River basin, located in the Loess Plateau, is evaluated by means of a simple numerical model at the hillslope scale. butter bean recipes healthyWitrynaLoess slide-flows have become a new geological hazard and erosion process on the Loess Plateau. Loess slide-flows are a prominent ecological and environmental … butter bean recipes greek