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6. Ecohealth Chair in Urban Air Pollution and Its Impact on Non-communicable Respiratory Diseases in West Africa

Author

Kêdoté, Nonvignon Marius, Darboux, Aymeric Joaquin, Tiembre, Issaka, Lompo, Sandrine, Fall, Mamadou, Pisello, Anna Laura, Editorial Board Member, Hawkes, Dean, Editorial Board Member, Bougdah, Hocine, Editorial Board Member, Rosso, Federica, Editorial Board Member, Abdalla, Hassan, Editorial Board Member, Boemi, Sofia-Natalia, Editorial Board Member, Mohareb, Nabil, Editorial Board Member, Mesbah Elkaffas, Saleh, Editorial Board Member, Bozonnet, Emmanuel, Editorial Board Member, Pignatta, Gloria, Editorial Board Member, Mahgoub, Yasser, Editorial Board Member, De Bonis, Luciano, Editorial Board Member, Kostopoulou, Stella, Editorial Board Member, Pradhan, Biswajeet, Editorial Board Member, Abdul Mannan, Md., Editorial Board Member, Alalouch, Chaham, Editorial Board Member, Gawad, Iman O., Editorial Board Member, Nayyar, Anand, Editorial Board Member, Amer, Mourad, Series Editor, Fomba, Khanneh Wadinga, editor, Tchanche Fankam, Bertrand, editor, Mellouki, Abdelwahid, editor, Westervelt, Daniel M., editor, and Giordano, Michael R., editor

Published
2024
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7. Joint Application of Drilling, Geophysical, and Remote Sensing Methods to Characterize Uncertainties on the Geometry of Phosphate Deposits (Senegal)

Author

Fall, Mamadou, Ndiaye, Abdoul Aziz, Thiam, Mohamadou Moustapha, Gueye, Mamadou, Pisello, Anna Laura, Editorial Board Member, Hawkes, Dean, Editorial Board Member, Bougdah, Hocine, Editorial Board Member, Rosso, Federica, Editorial Board Member, Abdalla, Hassan, Editorial Board Member, Boemi, Sofia-Natalia, Editorial Board Member, Mohareb, Nabil, Editorial Board Member, Mesbah Elkaffas, Saleh, Editorial Board Member, Bozonnet, Emmanuel, Editorial Board Member, Pignatta, Gloria, Editorial Board Member, Mahgoub, Yasser, Editorial Board Member, De Bonis, Luciano, Editorial Board Member, Kostopoulou, Stella, Editorial Board Member, Pradhan, Biswajeet, Editorial Board Member, Abdul Mannan, Md., Editorial Board Member, Alalouch, Chaham, Editorial Board Member, Gawad, Iman O., Editorial Board Member, Nayyar, Anand, Editorial Board Member, Amer, Mourad, Series Editor, Khomsi, Sami, editor, Bezzeghoud, Mourad, editor, Banerjee, Santanu, editor, Eshagh, Mehdi, editor, Benim, Ali Cemal, editor, Merkel, Broder, editor, Kallel, Amjad, editor, Panda, Sandeep, editor, Chenchouni, Haroun, editor, Grab, Stefan, editor, and Barbieri, Maurizio, editor

Published
2024
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42. Physical Model Tests of Piles under Freeze–Thaw Cycles Subjected to Individual and Combined Loads.

Author

Singh, Harshdeep and Fall, Mamadou

Subjects
*FREEZE-thaw cycles, *BUILDING foundations, *LATERAL loads, *COMBINED cycle power plants, *SANDY soils, *GLOBAL warming, *POWER plants, COLD regions
Abstract

Seasonal freeze–thaw (F–T) cycles significantly affect the mechanical properties of soils and the behavior of pile foundations in soils subjected to F–T cycles under different loading conditions. Soils exposed to F–T cycles can impact the performance of pile foundations. Consequently, the effects of F–T cycles should be taken into account when designing piles, particularly in cold regions such as Canada. In recent years, climatic conditions in Canada have changed due to global warming, increasing the number of F–T cycles in many regions each year. This study aimed to investigate the influence of different numbers of F–T cycles on the behavior of piles in sandy soils. Laboratory experiments were conducted on physical models of piles subjected to axial (uplift) and lateral loads combined with F–T cycles. The model was scaled using standard scaling principles, and the test apparatus was equipped with various sensors to measure temperatures, forces, and displacements. The results showed that as the number of F–T cycles increased, the lateral capacities of the piles under individual and combined loads increased steadily. The lateral load capacity increased from 350 to 430 N after five F–T cycles under individual loading and from 225 to 455 N after five F–T cycles under combined loading. However, the pile's uplift load capacity remained constant under individual and combined loads and there was no change due to F–T cycles. The results of this experimental study will be useful for understanding the behavior of piles subjected to seasonal F–T cycles and for improving the design of pile foundations in cold regions. [ABSTRACT FROM AUTHOR]

Published
2024
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