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Experimental study of thaw settlement and internal structural changes in frozen soil during the thawing process
Published 2025-07-01“…Additionally, the packing density exhibited a favourable correlation with the water content, and the following size relationship for the packing density of the different soil types at the same water content could be established: ST (sand) > HB (silty loam) > SL (sandy loam) > YC (silty clay). …”
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42
Recycling Waste Soils for Stability Enhancement in Bored Pile Construction
Published 2025-01-01“…Instability in the hole wall of bored pile may cause serious environmental problems. Therefore, using the small hole expansion theory and elastic–plastic theory, we studied the instability mechanism of the hole wall of bored pile, determined the stress expansion solution of the soil layer after the excavation of pile holes in the semi-infinite elastic soil layer, and established a mechanical model. …”
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43
Study on Application Effect of Sand Consolidating Agent for the Slope of Highway Subgrade in Season Frozen Zone
Published 2019-01-01“…In deep season frozen areas, the solidified layer is easy to be destroyed due to the influence of freeze-thaw cycles after the surface layer of the sandy slope is solidified by chemical methods. …”
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44
Analysis of the Development Characteristics and Influencing Factors of Freezing Temperature Field in the Cross Passage
Published 2021-01-01“…When the soil freezes for 45 days, the temperatures of the sandy silt and gray silt layers of the same cross passage drop to −8.25°C and −6.91°C, respectively, indicating that the freezing effect of the sandy silt layer is better than that of the gray silt layer. …”
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45
Denitrification in Seepage-Irrigated Vegetable Fields in South Florida
Published 2005-02-01“… Seepage irrigation is the most common irrigation method in south Florida on muck and sandy soils, and consists of maintaining a water table perched on an impermeable layer. …”
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46
Denitrification in Seepage-Irrigated Vegetable Fields in South Florida
Published 2005-02-01“… Seepage irrigation is the most common irrigation method in south Florida on muck and sandy soils, and consists of maintaining a water table perched on an impermeable layer. …”
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Variations in the physicochemical properties of soil, enzyme activities, and the characteristics of bacterial communities within algal biocrusts and subsoils across different plant...
Published 2025-04-01“…., Salix psammophila and Hedysarum scoparium), in the Hobq Desert, as well as from mobile sandy lands. We collected soil from the 0–2 cm (including the crust layer), 2–5 cm, and 5–10 cm soil layers, and measured and analyzed the soil physicochemical properties, enzyme activity and soil bacterial community characteristics. …”
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48
Study on Construction Technology of Rock-socketed Pile Group for Offshore Wind Turbine Generators
Published 2020-01-01“…This paper simulates and analyzes the driveability of steel pipe pile under complex geological conditions by the GRLWEAP software,and studies the construction technology of integrated rock-socketed pile group based on the statistical analysis of the construction efficiency of different rock-socketed equipment,such as percussion drill,rotary drill and auger drill.The results show that:When the bottom of the steel pipe pile in the granular strong weathered rock exceeds a certain depth,it is necessary to adopt the secondary pile sinking technology,which can effectively improve the efficiency of pile sinking.Under the engineering geological condition,the drilling efficiency of the rotary drill in the strong weathered rock layer is about 1.75~3.00 times that of the percussion drill,and the drilling efficiency in the weak weathered rock layer is relatively high.The drilling efficiency of auger drill increases obviously in most of the soil and rock layers such as sandy soil and strong weathered layers.The efficiency of the percussion drill in the covering layer is about 120% of that of the rotary drill.The successful construction of a high-power offshore test wind field shows that the optimized construction technology of rock-socketed piles has achieved good results in practical engineering applications.…”
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49
SEASONAL LIFE HISTORY PLASTICITY OF THE GROUP OF WINTER WHEAT AND TRITICALE ACCESSIONS
Published 2018-05-01“…Variability in performance was observed between these plants in spite of sandy soil (low humidity content) and May-June strong drought. …”
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50
Spatial Distribution Characteristics of Microplastics in Multiple Types of Beach Sediments in Pearl River Estuary
Published 2024-05-01“…A total of 57 sediment column samples are collected, and microplastics in different sediment layers are analyzed in detail. The abundance of microplastics in the surface layer (0~5 cm) and deep layer (5~15 cm) of sediments is 1 107.6 and 821.94 n/kg from Tangjiawan beach, 694.0 and 457.0 n/kg from Jinsha Beach, and 835.0 and 556.7 n/kg from the mangrove forest of Qi'ao Island, respectively. …”
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51
Application of 2D and 3D Electrical Resistivity Tomography (ERT) in Predicting Soil Erodibility in Oredide Village, Auchi in Etsako West LGA of Edo State, Southern Nigeria
Published 2021-11-01“…A total of 10 traverses, 200 m long each were occupied in grid format using the Dipole - Dipole electrode configuration. 2D results indicate topsoil with resistivity value range of 309 to 40130 Ωm within the depth range of 0 to 5 m. The second layer corresponds to sandy, lateritic sand, sand and sandstone having resistivity values ranging from 2186 to 60350Ωm to a depth of 10.0 m. …”
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52
Application of 2D and 3D Electrical Resistivity Tomography (ERT) in Predicting Soil Erodibility in Oredide Village, Auchi in Etsako West LGA of Edo State, Southern Nigeria
Published 2021-11-01“…A total of 10 traverses, 200 m long each were occupied in grid format using the Dipole - Dipole electrode configuration. 2D results indicate topsoil with resistivity value range of 309 to 40130 Ωm within the depth range of 0 to 5 m. The second layer corresponds to sandy, lateritic sand, sand and sandstone having resistivity values ranging from 2186 to 60350Ωm to a depth of 10.0 m. …”
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53
Network security situation awareness technology in smart substation
Published 2015-12-01“…On the basis of analyzing the security threats in smart substation,a security situation awareness framework was proposed,combined with integrated physical security,network security,system security,protocol security,data security and so on.And a network security monitoring solution for substations was provided.It was a special intelligent substation network security situation awareness device which could collect the security events,analyze them and generate situation analysis results.Further more,everal key technologies used in our frameworks were focused on.Finally,a design scheme including hardware and software for the smart substation network security awareness system and its implementation architecture were described,in which a multi-layer software architecture was adopted by the system,and a combinatory of the Intel Sandy Bridge,the bus structure and a modular design technology,was adopted in order to meet the need of high performance.…”
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A Study of Superficial Sediments and Aquifers in Parts of Uyo Local Government Area, Akwa Ibom State, Southern Nigeria, Using Electrical Sounding Method
Published 2010-01-01“…Within the maximum electrode spread, the area studied show sandy beds with five layers of various thicknesses. …”
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A Study on the Seismic Response Characteristics of an Oblique Pile Group-Soil-Structure with Different Pile Caps
Published 2019-01-01“…The results indicate that under the action of earthquake, the distribution of pore water pressure in the soil layer increases gradually from top to bottom. …”
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56
Liquefaction and Reliquefaction Characteristics of Aeolian Sand Foundation Reinforced by Precast Cement Piles Based on Shaking Table Test
Published 2022-01-01“…In addition, there may be more than one liquefaction of aeolian sand foundation in areas with frequent earthquakes. …”
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57
Soil moisture partitioning strategies in blowouts in the Hulunbeier grassland and response to rainfall
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58
Is Ridge Cultivation Sustainable? A Case Study from the Haean Catchment, South Korea
Published 2013-01-01“…The artificial layering induced by spreading sandy material supported lateral downhill water flow. …”
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ANNUAL GROWTH OF MOSSES IN MIDDLE-TAIGA PINE FORESTS WITH UNDERGROWTH IN THE REPUBLIC OF KARELIA
Published 2024-12-01“…It was found that Pleurozium schreberi contributes the most to the total annual production of the moss layer in the surveyed pine forests (41.4±6.3 g/m²). …”
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60
A Case Study on Stratified Settlement and Rebound Characteristics due to Dewatering in Shanghai Subway Station
Published 2013-01-01“…The soil model was composed of three layers, and the dewatering process was simulated by self-invention of decompressing devise. …”
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