搜索结果: 1-11 共查到“工学 Compaction”相关记录11条 . 查询时间(0.078 秒)
Prediction of the effectiveness of rolling dynamic compaction using artificial neural networks and cone penetration test data
soil mechanics rolling dynamic compaction artificial neural networks cone penetration test ground improvement
2018/12/25
Rolling Dynamic Compaction (RDC)，which is a ground improvement technique involving non-circular modules drawn behind a tractor，has provided the construction industry with an improved ground compaction...
Conditions for instabilities in collapsible solids including volume implosion and compaction banding
Compaction band Deformation band Material instability Volume implosion
2015/7/1
We review conditions for material instabilities in porous solids induced by a bifurcation of solution into non-unique strain rate fields. Bifurcation modes considered include jumps in the strain rate ...
农田土壤含水率和坚实度采集仪设计与试验（Design and Test on the Field Soil Moisture and Compaction Acquisition Instrument）
土壤 含水率 坚实度
2010/12/28
设计了可以定位、快速、同步测量农田土壤含水率和坚实度的采集仪。在探讨该仪器测量原理和软硬件设计的基础上,对其测量的准确性进行了试验分析。某苗圃地,选定5m×5m的30个采样点,用农田信息采集仪和烘干法分别测量各点的土壤含水率,并对测量值进行简单相关分析，其相关系数为0.9179,达到极显著性相关。以同样的方式,采用农田信息采集仪和SC900型数字土壤坚实度仪,分别测量30个采样点10cm和...
Impact of soil compaction in sowing on development and crops of sugar beet
sowing sugar beet soil compaction combination of working operations
2014/2/26
Putting together work operations minimizes the number of machine passes across the plot, which helps to reduce negative soil compaction and to save fuels. However, the combination of working operation...
Compaction of the diamond – Ti3SiC2 graded material by the high – speed centrifugal compaction process
High-speed centrifugal compaction process Sedimentation Barnea-Mizrahi equation
2009/12/1
Purpose: Sedimentation of particles in a viscous fluid is a main physical problem in fluid mechanics.
Sedimentation is benchmark of one of the technica; methods to produce the functionally graded mat...
Investigation of Parameters of Compaction Testing
Compaction control Nuclear density test Sand cone test, Correlation
2009/9/30
Compaction is one of the most efficient and practical soil improvement techniques that can be applied to earthworks. In the field, compaction control is commonly carried out by sand-cone and nuclear g...
Assessment of core sands suitability for filling the core box and for compaction – by blowing methods
core production core blowing core shooting core sand
2011/3/29
The obtained effects of filling the core box cavity and moulding sand compaction in processes of core production by blowing methods (blowing, shooting) depend on several factors. The most important ar...
Assessment of core sands suitability for filling the core box and for compaction – by blowing methods
core production core blowing core shooting core sand
2011/3/29
The obtained effects of filling the core box cavity and moulding sand compaction in processes of core production by blowing methods (blowing, shooting) depend on several factors. The most important ar...
Reducing Soil Compaction of Tennessee Valley Soils in Conservation Tillage Systems
Tennessee Valley Soils Conservation Tillage Systems
2008/5/13
Inadequate rooting systems due to excessive soil compaction have prevented farmers in the Tennessee Valley region of northern Alabama from adopting conservation tillage systems. Cotton (Gossypium hirs...
Using In-Row Subsoiling to Minimize Soil Compaction Caused by Traffic
Minimize Soil Compaction In-Row Subsoiling
2008/5/5
Soil compaction due to traffic and natural reconsolidation limits the ability of crop roots to expand into deep zones of moisture availability. This study was conducted to determine whether the total ...
3D model of impulse compaction of moulding sands model
Moulding sand Impulse compaction process Rheological model 3D mathematical model
2011/3/15
A mathematical 3D model is presented, fully describing the impulse compaction process of moulding sands. The model is based on the models of the impulse head dynamics as well as of the deformation and...