Comparative Study on the Field- and Lab-Based Soil-Water Characteristic Curves for Expansive Soils
Expansive soils are problematic and viewed as a potential hazard for buildings and structures due to swell and shrink phenomena. The damaging effect of these soils is strongly correlated with the soil-water characteristics of expansive soils present in the shallow depth. The seasonal wetting-drying...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/6390442 |
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| author | Bakht Zamin Hassan Nasir Muhammad Ali Sikandar Waqas Ahmad Beenish Jehan Khan Mahmood Ahmad Muhammad Tariq Bashir |
| author_facet | Bakht Zamin Hassan Nasir Muhammad Ali Sikandar Waqas Ahmad Beenish Jehan Khan Mahmood Ahmad Muhammad Tariq Bashir |
| author_sort | Bakht Zamin |
| collection | DOAJ |
| description | Expansive soils are problematic and viewed as a potential hazard for buildings and structures due to swell and shrink phenomena. The damaging effect of these soils is strongly correlated with the soil-water characteristics of expansive soils present in the shallow depth. The seasonal wetting-drying cycle is vital in fluctuating moisture content in the surficial soils. As such, soils remain unsaturated most of the time due to high absorption capacity. Therefore, it is crucial to assess them as unsaturated soil, and the soil-water characteristic curve (SWCC) is an essential tool for measuring unsaturated soils’ mechanical and hydraulic properties. The main objective of this study was to establish both field- and lab-based SWCCs for the expansive soils and compare them for determining the possible difference between them. For this purpose, eight sites of expansive soils were selected for sampling and in situ testing. These sites include three locations of Karak, three locations of Kohat, and two locations of D.I areas. Based on the experimental results, Karak’s expansive soil indicated a high suction value of 705 kPa, while D. I Khan’s soil showed the least suction equal to 595 kPa. The comparison of field and lab SWCCs for the potential sites presented a close agreement in the matric suction values beyond the air entry values (AEVs), particularly in the residual suction zones. It was also concluded that for expansive soils, the field- and lab-based SWCCs are comparable beyond the AEVs. The established curves can be successfully utilized to assess local expansive soils in the framework of unsaturated soils. |
| format | Article |
| id | doaj-art-39a7e7a05ecf4885851f6bb9ba657e4a |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-39a7e7a05ecf4885851f6bb9ba657e4a2025-02-03T01:22:27ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/6390442Comparative Study on the Field- and Lab-Based Soil-Water Characteristic Curves for Expansive SoilsBakht Zamin0Hassan Nasir1Muhammad Ali Sikandar2Waqas Ahmad3Beenish Jehan Khan4Mahmood Ahmad5Muhammad Tariq Bashir6Civil Engineering DepartmentWater and Sanitation Services Peshawar, (WSSP)Civil Engineering DepartmentNational Centre of Excellence in Geology (NCEG)Civil Engineering DepartmentDepartment of Civil EngineeringCivil Engineering DepartmentExpansive soils are problematic and viewed as a potential hazard for buildings and structures due to swell and shrink phenomena. The damaging effect of these soils is strongly correlated with the soil-water characteristics of expansive soils present in the shallow depth. The seasonal wetting-drying cycle is vital in fluctuating moisture content in the surficial soils. As such, soils remain unsaturated most of the time due to high absorption capacity. Therefore, it is crucial to assess them as unsaturated soil, and the soil-water characteristic curve (SWCC) is an essential tool for measuring unsaturated soils’ mechanical and hydraulic properties. The main objective of this study was to establish both field- and lab-based SWCCs for the expansive soils and compare them for determining the possible difference between them. For this purpose, eight sites of expansive soils were selected for sampling and in situ testing. These sites include three locations of Karak, three locations of Kohat, and two locations of D.I areas. Based on the experimental results, Karak’s expansive soil indicated a high suction value of 705 kPa, while D. I Khan’s soil showed the least suction equal to 595 kPa. The comparison of field and lab SWCCs for the potential sites presented a close agreement in the matric suction values beyond the air entry values (AEVs), particularly in the residual suction zones. It was also concluded that for expansive soils, the field- and lab-based SWCCs are comparable beyond the AEVs. The established curves can be successfully utilized to assess local expansive soils in the framework of unsaturated soils.http://dx.doi.org/10.1155/2022/6390442 |
| spellingShingle | Bakht Zamin Hassan Nasir Muhammad Ali Sikandar Waqas Ahmad Beenish Jehan Khan Mahmood Ahmad Muhammad Tariq Bashir Comparative Study on the Field- and Lab-Based Soil-Water Characteristic Curves for Expansive Soils Advances in Civil Engineering |
| title | Comparative Study on the Field- and Lab-Based Soil-Water Characteristic Curves for Expansive Soils |
| title_full | Comparative Study on the Field- and Lab-Based Soil-Water Characteristic Curves for Expansive Soils |
| title_fullStr | Comparative Study on the Field- and Lab-Based Soil-Water Characteristic Curves for Expansive Soils |
| title_full_unstemmed | Comparative Study on the Field- and Lab-Based Soil-Water Characteristic Curves for Expansive Soils |
| title_short | Comparative Study on the Field- and Lab-Based Soil-Water Characteristic Curves for Expansive Soils |
| title_sort | comparative study on the field and lab based soil water characteristic curves for expansive soils |
| url | http://dx.doi.org/10.1155/2022/6390442 |
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