Stress transmission coefficient: A soil stress transmission property for a loading process

He, Tingfeng; Ding, Qishuo; Yinian, Li; He, Ruiyin; Xue, Jinlin; Qiu, Wei

doi:10.1016/j.still.2016.09.013

Cited by 9 publications

(6 citation statements)

References 41 publications

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“…The soils were collected from the plowed layer (0–20 cm), air‐dried for 2 wk, crumbled, and sieved using a 4‐mm sieve (He et al., 2017). Water content of soil samples were then determined using the sieved soil, and Equation () was used to calculate the water to add to each sample to achieve the required water content:

\begin{equation}{m_{\rm{w}}} = \frac{{{m_0}({w_{\rm{i}}} - {w_0})}}{{1 + {w_0}}}\end{equation}

where m w represents the water to add to the sample (g), m 0 represents the weight of each sample (g), w 0 represents the determined water content (g −1 ), and w i represents the required water content (g −1 ).…”

Section: Methodsmentioning

confidence: 99%

“…Soil samples were adjusted to five water contents ( w ; i.e., 0.15, 0.20, 0.25, 0.30, and 0.35 g −1 ), using a spray to add distilled water to the soil. The samples were mixed well and stored in a plastic bag for one day to reach uniform water content (He et al., 2017).…”

Section: Methodsmentioning

confidence: 99%

“…The remolded soils were poured into cylinders (50 mm high, 50 mm in diameter) and compressed with a manually operated compactor (He et al., 2017). The dry bulk density (ρ) was controlled to be 1.1, 1.2, 1.3, 1.4, and 1.5 Mg m −3 , respectively.…”

Section: Methodsmentioning

confidence: 99%

“…The soils were collected from the plowed layer (0-20 cm), air-dried for 2 wk, crumbled, and sieved using a 4-mm sieve (He et al, 2017). Water content of soil samples were then determined using the sieved soil, and Equation ( 1) was used to calculate the water to add to each sample to achieve the required water content:…”

Section: Soil Preparationmentioning

confidence: 99%

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Effects of dry bulk density and water content on compressive characteristics of wet clayey paddy soil

et al. 2022

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The application of soil compaction models is limited by the lack of soil compression properties and their variations as a function of different physical parameters. This study aimed to explore the effect of dry bulk density and water content on the characteristics of the soil compression curves and compression properties for wet clayey paddy soil. In order to investigate large‐scale soil initial conditions, uniaxial compression tests were conducted on a total of 25 soil states by controlling five soil water contents and five dry bulk densities. Soil compression curves were obtained from fitting uniaxial compression test results, and the swelling index, compression index, and precompression stress were measured. The swelling index of paddy soil ranged from 0.003 to 0.138 and showed a significant positive dependence on water content and a significant negative correlation with dry bulk density. The compression index ranged from 0.115 to 0.839. A quadratic polynomial function was established between water content and compression index, whereas the compression index showed a significant negative correlation with dry bulk density. The precompression stress ranged from 33 to 127 kPa. The precompression stress showed a prominent negative dependence on water content and a significant positive correlation with dry bulk density. The pedo‐transfer functions of the swelling index, compression index, and precompression stress could be used in soil compaction models as input parameters for risk evaluation of compaction damage of wet clayey paddy soil.

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\begin{equation}{m_{\rm{w}}} = \frac{{{m_0}({w_{\rm{i}}} - {w_0})}}{{1 + {w_0}}}\end{equation}

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Soil Preparationmentioning

confidence: 99%

See 2 more Smart Citations

Effects of dry bulk density and water content on compressive characteristics of wet clayey paddy soil

et al. 2022

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“…At present, there is no uniform standard for the selection of concentration factor ξ, which is generally chosen by experience. Previous studies (Horn & Fleige, 2003;He et al, 2017) show that the value of ξ ranged from 2.0 to 14.3. The concentration factor of five was used in our simulation according to the recommendation by Lamandé et al (2007).…”

Section: Magnitude Of Soil Stress Under the Tire And Rubber Trackmentioning

confidence: 98%

Vertical and horizontal soil stresses beneath a modern combine harvester: Measurements and modelling

et al. 2022

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Vehicle traffic-induced subsoil compaction has negative influences on soil functions and ecosystems, which may cause the degradation of farmland. Rubber tracks are recommended for use on modern large agricultural vehicles due to its low ground pressure as compared to tyres. However, few studies have discussed the potential of the rubber tracks to reduce subsoil stress. In this study, we investigated the magnitude and distribution of soil stress below a rubber track and a tyre for a range of traffic velocities. The vertical and horizontal soil stresses were measured under the centrelines of the rubber track and tyre paths at a depth of 0.35 m by transducers buried in the soil. The SoilFlex model was adopted to simulate soil stress in the soil profile. Vertical stress was distributed with one peak under the tyre and multiple peaks under the rubber track. Horizontal stress exhibited one peak before and one peak after the passing of the axle. The maximum vertical and horizontal stresses were approximately 3.4-and 2.0-times higher, respectively, under the tyre than under the rubber track, indicating greater effectiveness of the rubber track in reducing the vertical stress than reducing horizontal stress. Both vertical and horizontal stresses presented a downward trend as the vehicle velocity increased.

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Experimental Determination of Permeability Coefficient

Gabitova

Zaborova

Barinov

2017

International Scientific Conference Energy Management of Municipal Transportation Facilities and Transport EMMFT 2017

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Stress transmission coefficient: A soil stress transmission property for a loading process

Cited by 9 publications

References 41 publications

Effects of dry bulk density and water content on compressive characteristics of wet clayey paddy soil

Effects of dry bulk density and water content on compressive characteristics of wet clayey paddy soil

Vertical and horizontal soil stresses beneath a modern combine harvester: Measurements and modelling

Experimental Determination of Permeability Coefficient

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