An Experimental Study of a Nailed Soil Slope: Effects of Surcharge Loading and Nails Characteristics
The earth nailing system is a ground improvement technique used to stabilize earth slopes. The behavior of the earth nailing system is dependent on soil and nailing characteristics, such as the spacing between nails, the orientation, length, and method of installation of nails, soil properties, slop...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-05-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/11/11/4842 |
| _version_ | 1797532768079446016 |
|---|---|
| author | Mahmoud H. Mohamed Mohd Ahmed Javed Mallick Pham V. Hoa |
| author_facet | Mahmoud H. Mohamed Mohd Ahmed Javed Mallick Pham V. Hoa |
| author_sort | Mahmoud H. Mohamed |
| collection | DOAJ |
| description | The earth nailing system is a ground improvement technique used to stabilize earth slopes. The behavior of the earth nailing system is dependent on soil and nailing characteristics, such as the spacing between nails, the orientation, length, and method of installation of nails, soil properties, slope height and angle, and surcharge loading, among others. In the present study, a three-dimensional physical model was built to simulate a soil nailed slope with a model scale of 1:10 with various soil nail characteristics. The simulated models consist of Perspex strips as facing and steel bars as a reinforcing system to stabilize the soil slope. Sand beds in the model were formed, using a sand raining system. The performance of nailed soil slope models under three important nails characteristics, i.e., length, spacing and orientation, with varying surcharge loading were studied. It was observed that there is a reduction in the lateral movement of slope and footing settlements with an increase in length. It was found that the slope face horizontal pressure is non-linear with different nail characteristics. The increase in length and inclination of the soil nails decreased the vertical, horizontal stress and footing settlement, while the increase in spacing of the nails increased the vertical and horizontal stress behind the soil mass. |
| first_indexed | 2024-03-10T11:04:59Z |
| format | Article |
| id | doaj.art-ffc5eb4c5a5946f081a3c34e13cd884e |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T11:04:59Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-ffc5eb4c5a5946f081a3c34e13cd884e2023-11-21T21:16:53ZengMDPI AGApplied Sciences2076-34172021-05-011111484210.3390/app11114842An Experimental Study of a Nailed Soil Slope: Effects of Surcharge Loading and Nails CharacteristicsMahmoud H. Mohamed0Mohd Ahmed1Javed Mallick2Pham V. Hoa3Civil Engineeg Department, College of Engineering, K. K. University, Abha 61421, Saudi ArabiaCivil Engineeg Department, College of Engineering, K. K. University, Abha 61421, Saudi ArabiaCivil Engineeg Department, College of Engineering, K. K. University, Abha 61421, Saudi ArabiaHo Chi Minh City Institute, Vietnam Academy of Science and Technology, Ho Chi Minh City 008428, VietnamThe earth nailing system is a ground improvement technique used to stabilize earth slopes. The behavior of the earth nailing system is dependent on soil and nailing characteristics, such as the spacing between nails, the orientation, length, and method of installation of nails, soil properties, slope height and angle, and surcharge loading, among others. In the present study, a three-dimensional physical model was built to simulate a soil nailed slope with a model scale of 1:10 with various soil nail characteristics. The simulated models consist of Perspex strips as facing and steel bars as a reinforcing system to stabilize the soil slope. Sand beds in the model were formed, using a sand raining system. The performance of nailed soil slope models under three important nails characteristics, i.e., length, spacing and orientation, with varying surcharge loading were studied. It was observed that there is a reduction in the lateral movement of slope and footing settlements with an increase in length. It was found that the slope face horizontal pressure is non-linear with different nail characteristics. The increase in length and inclination of the soil nails decreased the vertical, horizontal stress and footing settlement, while the increase in spacing of the nails increased the vertical and horizontal stress behind the soil mass.https://www.mdpi.com/2076-3417/11/11/4842soil nailing systemnails characteristicssoil slopesurcharge loadingnails orientation |
| spellingShingle | Mahmoud H. Mohamed Mohd Ahmed Javed Mallick Pham V. Hoa An Experimental Study of a Nailed Soil Slope: Effects of Surcharge Loading and Nails Characteristics Applied Sciences soil nailing system nails characteristics soil slope surcharge loading nails orientation |
| title | An Experimental Study of a Nailed Soil Slope: Effects of Surcharge Loading and Nails Characteristics |
| title_full | An Experimental Study of a Nailed Soil Slope: Effects of Surcharge Loading and Nails Characteristics |
| title_fullStr | An Experimental Study of a Nailed Soil Slope: Effects of Surcharge Loading and Nails Characteristics |
| title_full_unstemmed | An Experimental Study of a Nailed Soil Slope: Effects of Surcharge Loading and Nails Characteristics |
| title_short | An Experimental Study of a Nailed Soil Slope: Effects of Surcharge Loading and Nails Characteristics |
| title_sort | experimental study of a nailed soil slope effects of surcharge loading and nails characteristics |
| topic | soil nailing system nails characteristics soil slope surcharge loading nails orientation |
| url | https://www.mdpi.com/2076-3417/11/11/4842 |
| work_keys_str_mv | AT mahmoudhmohamed anexperimentalstudyofanailedsoilslopeeffectsofsurchargeloadingandnailscharacteristics AT mohdahmed anexperimentalstudyofanailedsoilslopeeffectsofsurchargeloadingandnailscharacteristics AT javedmallick anexperimentalstudyofanailedsoilslopeeffectsofsurchargeloadingandnailscharacteristics AT phamvhoa anexperimentalstudyofanailedsoilslopeeffectsofsurchargeloadingandnailscharacteristics AT mahmoudhmohamed experimentalstudyofanailedsoilslopeeffectsofsurchargeloadingandnailscharacteristics AT mohdahmed experimentalstudyofanailedsoilslopeeffectsofsurchargeloadingandnailscharacteristics AT javedmallick experimentalstudyofanailedsoilslopeeffectsofsurchargeloadingandnailscharacteristics AT phamvhoa experimentalstudyofanailedsoilslopeeffectsofsurchargeloadingandnailscharacteristics |