THE EFFECT OF SOIL TYPE ON SOIL-WATER AND UNSATURATED HYDRAULIC CHARACTERISTICS

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Aliashrafzadeh h.; BADV K.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Sharif Journal of Civil Engineering Year:2019 | Volume:35-2 | Issue:3.2 Page(s): 149-156

Download Full-Text

Persian Verion

View:

570

Download:

Cites:

Information Journal Paper

Title

THE EFFECT OF SOIL TYPE ON SOIL-WATER AND UNSATURATED HYDRAULIC CHARACTERISTICS

Author(s)

Aliashrafzadeh h. | BADV K. | Issue Writer Certificate

Keywords

Soil typeQ1

soil water characteristics curveQ1

unsaturated hydraulic conductivityQ1

pressure plate apparatusQ1

Abstract

In most parts of the planet including Iran, soil layers are above the groundwater level and in unsaturated state. Various activities associated with soils, such as subsurface explorations, foundation engineering and building constructions in unsaturated soils, etc., necessitate the study of the properties of unsaturated soils. Historically, the studies and activities were associated with the precedence of saturated soils over the saturated soils owing to the strong theoretical basis and low cost of saturated soils. Consequently, the need for understanding the behavior and properties of the unsaturated soils is a great concern for engineers and professionals when dealing with that type of soils. Important issues for predicting geotechnical behavior of unsaturated soils include the determination of the soil water characteristic curves (SWCCs) and unsaturated hydraulic conductivities. The SWCCs has been found to be a conceptual and interpretative tool by which the behavior of unsaturated soils can be understood. The SWCCs define the relationship between soil matric suction (the difference between the air and water pressure in the soil) and the gravimetric water content. In this study, in order to ac-curately analyze the geotechnical behavior and recognize the effect of Soil type on soil-water and hydraulic characteristics of unsaturated soils including sand, silt and clay, three types of soil with different particle sizes were studied from the Nazlo region of Urmia city. To achieve SWCCs, a pressure plate apparatus with a pressure control panel was designed and built. Laboratory results were analyzed with Brooks-Corey and Van Genuchten models implemented in RETC computer code. The suction-hydraulic conductivity relationships of the soil samples were analyzed with the Brooks-Corey and Burdine model as well as the Van Genuchten and Mualem model. By analyzing the results of laboratory SWCCs up to 200 kPa matric suction, it was verified that as fine grained particles of the soil samples increased, the water holding capacity of the soils also increased. Consequently, the air-entry value, residual water content, and saturated water content increased. This finding shows the important effect of texture and particle size of the soils.

Multimedia

No record.

Cites

No record.

References

No record.

Cite

APA: Copy

Aliashrafzadeh, h., & BADV, K.. (2019). THE EFFECT OF SOIL TYPE ON SOIL-WATER AND UNSATURATED HYDRAULIC CHARACTERISTICS. SHARIF: CIVIL ENINEERING, 35-2(3.2 ), 149-156. SID. https://sid.ir/paper/127981/en

Vancouver: Copy

Aliashrafzadeh h., BADV K.. THE EFFECT OF SOIL TYPE ON SOIL-WATER AND UNSATURATED HYDRAULIC CHARACTERISTICS. SHARIF: CIVIL ENINEERING[Internet]. 2019;35-2(3.2 ):149-156. Available from: https://sid.ir/paper/127981/en

IEEE: Copy

h. Aliashrafzadeh, and K. BADV, “THE EFFECT OF SOIL TYPE ON SOIL-WATER AND UNSATURATED HYDRAULIC CHARACTERISTICS,” SHARIF: CIVIL ENINEERING, vol. 35-2, no. 3.2 , pp. 149–156, 2019, [Online]. Available: https://sid.ir/paper/127981/en

Related Journal Papers