Effects of slaking and mechanical breakdown on disaggregation and splash erosion

2017 ◽  
Vol 68 (6) ◽  
pp. 797-805 ◽  
Author(s):  
H. Xiao ◽  
G. Liu ◽  
M. A. M. Abd-Elbasit ◽  
X. C. Zhang ◽  
P. L. Liu ◽  
...  
Keyword(s):  
Splash Erosion ◽  
Mechanical Breakdown

The methodological approach for the determination of the pressure of artificial raindrops as a question of the theory of splash soil erosion

2020 ◽  
pp. 24-28
Author(s):  
Mihail Zver'kov
Keyword(s):  
Block Diagram ◽  
Methodological Approach ◽  
Control Measures ◽  
Soil Conditions ◽  
Effective Pressure ◽  
Long Distance ◽  
Splash Erosion ◽  
Rain Drops ◽  
Artificial Rain ◽  
The Impact

To the article the results of the theoretical and experimental researches are given on questions of estimates of the dynamic rate effect of raindrop impact on soil. The aim of this work was to analyze the current methods to determine the rate of artificial rain pressure on the soil for the assessment of splash erosion. There are the developed author’s method for calculation the pressure of artificial rain on the soil and the assessment of splash erosion. The study aims to the justification of evaluation methods and the obtaining of quantitative characteristics, prevention and elimination of accelerated (anthropogenic) erosion, the creation and the realization of the required erosion control measures. The paper considers the question of determining the pressure of artificial rain on the soil. At the moment of raindrops impact, there is the tension in the soil, which is called vertical effective pressure. It is noted that the impact of rain drops in the soil there are stresses called vertical effective pressure. The equation for calculation of vertical effective pressure is proposed in this study using the known spectrum of raindrops. Effective pressure was 1.4 Pa for the artificial rain by sprinkler machine «Fregat» and 5.9 Pa for long distance sprinkler DD-30. The article deals with a block diagram of the sequence for determining the effective pressure of rain drops on the soil. This diagram was created by the author’s method of calculation of the effective pressure of rain drops on the soil. The need for an integrated approach to the description of the artificial rain impact on the soil is noted. Various parameters characterizing drop erosion are considered. There are data about the mass of splashed soil in the irrigation of various irrigation machinery and installations. For example, the rate (mass) of splashed soil was 0.28…0.78 t/ha under irrigation sprinkler apparatus RACO 4260–55/701C in the conditions of the Ryazan region. The method allows examining the environmental impact of sprinkler techniques for analyzes of the pressure, caused by raindrops, on the soil. It can also be useful in determining the irrigation rate before the runoff for different types of sprinkler equipment and soil conditions.

Splashboards: A simple field and classroom demonstration of splash erosion

1986 ◽  
Vol 15 (2) ◽  
pp. 117-118
Author(s):  
P. A. McDaniel ◽  
R. C. Graham
Keyword(s):  
Splash Erosion

SfM‐MVS Photogrammetry for Splash Erosion Monitoring under Natural Rainfall

2021 ◽  
Author(s):  
Tomáš Laburda ◽  
Josef Krása ◽  
David Zumr ◽  
Jan Devátý ◽  
Michal Vrána ◽  
...  
Keyword(s):  
Splash Erosion ◽  
Natural Rainfall

Time Dependence of Mechanical Breakdown Phenomena

1956 ◽  
Vol 27 (8) ◽  
pp. 862-866 ◽  
Author(s):  
Bernard D. Coleman
Keyword(s):  
Time Dependence ◽  
Mechanical Breakdown

A phenomenological approach to the mechanical breakdown of anodic oxide films on zirconium

1986 ◽  
Vol 26 (3) ◽  
pp. 213-221 ◽  
Author(s):  
Francesco Di Quarto ◽  
Salvatore Piazza ◽  
Carmelo Sunseri
Keyword(s):  
Oxide Films ◽  
Anodic Oxide ◽  
Phenomenological Approach ◽  
Anodic Oxide Films ◽  
Mechanical Breakdown

Usability of Water-Sensitive Papers (WSPs) for Assessing Splash Erosion

2021 ◽  
Vol 54 (5) ◽  
pp. 783-791
Author(s):  
Serdar Sari ◽  
Taşkın Öztaş
Keyword(s):  
Splash Erosion

Lessons from Emma Maersk Flooding – February 2013

2015 ◽  
Author(s):  
Chilukuri Maheshwar
Keyword(s):  
Lessons Learned ◽  
Suez Canal ◽  
Container Ship ◽  
Engine Room ◽  
Mechanical Breakdown ◽  
Engine Cylinder ◽  
The Cost ◽  
Main Engine

In February 2013, in the 2005 built 15500 TEU 397m long container ship EMMA MÆRSK a severe leakage occurred in as it was passing southbound through the Suez Canal. The leakage occurred due to mechanical breakdown of a stern thruster causing flooding of the shaft tunnel and filling up the engine room with 14000 m³ of seawater within a span of two hours, submerging the main engine cylinder heads-level equal to the outside water draft of 15.1 m. The cost of repairs and loss of revenue for six months amounted to a few million dollars. This paper highlights some of the lessons learned from this incident.

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