摘要 To simplify the testing process soil compaction caused by agricultural machinery,mechanical field operations on of th... 关键词 wheeled model agricultural machinery / soil parameter / simulation of soil compaction / experime...
Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3(2,700 kN-m/m3)). ASTM ... A Arulrajah,MM Disfani,S Horpibulsuk,... - 《Construction & Building Materials》 被引量: 106发表: 2014年 Manual of Soil Laboratory Testing Extract...
and is compacted in the condition of some compaction way,water content of soil and mass ratio and length of wheat straw is selected as effect factors for compaction effectiveness in heavy compaction test.The results indicate that: (1) Maximum dry density of reinforced soil is smaller than that...
In fact, wet soils are more prone to soil compaction [17,23]. Therefore, trafficability maps are generally developed based on soil wetness indices, and among these, one of the most applied in the last years has been the depth-to-water (DTW) index. The depth-to-water (DTW) concept was...
[44]. The steps followed to perform the measurement are indicated inFigure 3. Bulk density was measured in a laboratory as an indicator of soil compaction. For its assessment, three soil samples from topsoil (10–20 cm) and three soil samples from subsoil (40–50 cm) per experimental ...
Hebei, China Brand Name OBRK Model Number OBRK Product name Manual Soil Proctor Compaction Test Soil Proctor Test Application Soil, Road Test Apparatus Keyword Soil Compaction Proctor Model OBRK Material Platen heavy duty steel Standard ASTM/AASHTO/ BS ...
The significantly higher BD in LS zones compared to HS zones, suggests potential compaction or a reduced topsoil depth due to erosion93. Overall, and particularly in terms of increased water and nutrient holding capacity, our findings indicate that YSZ can effectively integrate the relationships ...
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Midwest41 were to experience (due to various changes in management practice) a reduction in soil compaction as prescribed here (i.e., a decrease in BD from 1.5 to 1.1 g cm−3), then estimates of SOC stock change would indicate a loss of 0.62 gigatons (fixed depth) or a gain of ...
Thus, damage to soil in form of compaction and displacement is reported to be becoming more widespread. The prediction of trafficability has become one of the most central issues in planning of mechanized harvesting operations. The work presented looks at methods to model field measured spatio-...