Results 31 to 40 of about 57,676 (303)

Precision planter monitoring system based on mobile communication network

open access: yesIET Networks, EarlyView., 2022
Abstract Sowing is an important link in agricultural production and the basis for ensuring high yields and bumper harvests. Agriculture requires precision plows with good performance and stable work. However, the seeding process is in a completely closed state, and the operator relies mainly on experience to judge the operating state and performance of
Bing Li, Jiyun Li
wiley   +1 more source

Field instrumentation for real-time measurement of soil-water characteristic curve

open access: yesInternational Soil and Water Conservation Research, 2022
Suction measurement has a vital role in unsaturated soil analysis. However, measuring soil suction remains a challenging task due to a number of issues such as the limited range of suction measurement, cavitation, or long equilibrium time.
Abdul Halim Hamdany   +5 more
doaj   +1 more source

Soil desiccation cracks as a suction–contraction process [PDF]

open access: yesGéotechnique Letters, 2017
Recent macro- and particle-scale advances in unsaturated soil behaviour have led to an enhanced understanding of the effects of moisture changes on soil response. This research examines desiccation cracks as a suction–contraction-coupled process using sand–clay mixtures.
Cordero Arias, Josbel Andreina   +4 more
openaire   +3 more sources

Comparative study on suction obtained using the membrane filter method from triaxial apparatus and pressure plate apparatus [PDF]

open access: yesE3S Web of Conferences
To investigate the stability of the earth embankments and slope failures during natural disasters, it is necessary to consider that soil is naturally unsaturated.
Chowdepalli Bhargavi, Watanabe Kenji
doaj   +1 more source

Behaviour of compacted silt used to construct flood embankment [PDF]

open access: yes, 2011
This paper investigates the unsaturated mechanical behaviour of a fill material sampled from flood embankments located along the Bengawan Solo River in Indonesia.
El Mountassir, G.   +3 more
core   +1 more source

Strength and dilatancy of an unsaturated expansive soil at high suction levels

open access: yesJournal of Rock Mechanics and Geotechnical Engineering
A series of suction-controlled triaxial tests was conducted on Nanyang expansive clay to investigate the effects of dry density and suction on dilatancy and strength.
Ke Chen   +3 more
doaj   +1 more source

Preliminary study on the contribution of osmotic effects for the electrical resistivity of sands [PDF]

open access: yesE3S Web of Conferences, 2020
Electrical resistivity of soils can be used to evaluate the level of contamination in soils in geophysical prospection tests. The chemical composition of pore fluid also corresponds to a given water potential, named as osmotic suction.
Borges Inês   +2 more
doaj   +1 more source

A ssessment of Various Methods to Measure the Soil Suction

open access: yesInternational Journal of Innovative Technology and Exploring Engineering, 2020
The foundation of the lightweight structures is commonly in unsaturated state conditions because located above the ground-water table. The matric suction governs the hydro-mechanical behaviour of unsaturated soils. Soil suction estimation is challenging both in the field and lab.
Armand Augustin Fondjo   +2 more
openaire   +2 more sources

Review and research on osmotic suction of saturated saline soils

open access: yesYantu gongcheng xuebao, 2020
In order to accurately calculate the osmotic suction in saturated saline soils under different salt contents, salt types and temperature conditions, firstly, a brief review is made of the research results of osmotic suction from the test and theoretical ...
ZHOU Feng-xi 1, 2, WANG Li-ye 1, LAI Yuan-ming 2
doaj   +1 more source

The Seepage and Soil Plug Formation in Suction Caissons in Sand Using Visual Tests

open access: yesApplied Sciences, 2020
The rapid development of offshore wind energy in China is becoming increasingly relevant for movement toward green development. This paper presents the results of visual tests of a suction caisson used as foundation for offshore wind turbines.
Liquan Xie, Shili Ma, Tiantian Lin
doaj   +1 more source

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