Patents by Inventor Tahar Ayadat
Tahar Ayadat has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11846082Abstract: The foundation system includes a below ground rigid raft foundation to bear a load for an above ground structure, and granular cushions and piles formed below the raft foundation. The granular cushions are configured for uniform load distribution of the raft foundation and the piles are configured to bear a load of the above ground structure and the raft foundation. The foundation system further includes stone columns encapsulated with a non-woven geofabric and configured to stabilize the raft foundation. The raft foundation is disposed adjacent and above the stone columns, the granular cushions are present between neighboring stone columns, and the granular cushions are present between the stone columns and the piles. The stone columns have a cementing agent for stabilization.Type: GrantFiled: June 14, 2022Date of Patent: December 19, 2023Assignee: Prince Mohammad Bin Fahd UniversityInventors: Tahar Ayadat, Danish Ahmed
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Publication number: 20230399808Abstract: The foundation system includes a below ground rigid raft foundation to bear a load for an above ground structure, and granular cushions and piles formed below the raft foundation. The granular cushions are configured for uniform load distribution of the raft foundation and the piles are configured to bear a load of the above ground structure and the raft foundation. The foundation system further includes stone columns encapsulated with a non-woven geofabric and configured to stabilize the raft foundation. The raft foundation is disposed adjacent and above the stone columns, the granular cushions are present between neighboring stone columns, and the granular cushions are present between the stone columns and the piles. The stone columns have a cementing agent for stabilization.Type: ApplicationFiled: June 14, 2022Publication date: December 14, 2023Applicant: Prince Mohammad Bin Fahd UniversityInventors: Tahar AYADAT, Danish AHMED
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Patent number: 11702814Abstract: The foundation system includes a below ground rigid raft foundation to bear a load for an above ground structure, and granular cushions and piles formed below the raft foundation. The granular cushions are configured for uniform load distribution of the raft foundation and the piles are configured to bear a load of the above ground structure and the raft foundation. The foundation system further includes stone columns encapsulated with a non-woven geofabric and configured to stabilize the raft foundation. The raft foundation is disposed adjacent and above the stone columns, the granular cushions are present between neighboring stone columns, and the granular cushions are present between the stone columns and the piles. The stone columns have a cementing agent for stabilization.Type: GrantFiled: October 19, 2022Date of Patent: July 18, 2023Assignee: Prince Mohammad Bin Fahd UniversityInventors: Tahar Ayadat, Danish Ahmed
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Patent number: 11686062Abstract: The foundation system includes a below ground rigid raft foundation to bear a load for an above ground structure, and granular cushions and piles formed below the raft foundation. The granular cushions are configured for uniform load distribution of the raft foundation and the piles are configured to bear a load of the above ground structure and the raft foundation. The foundation system further includes stone columns encapsulated with a non-woven geofabric and configured to stabilize the raft foundation. The raft foundation is disposed adjacent and above the stone columns, the granular cushions are present between neighboring stone columns, and the granular cushions are present between the stone columns and the piles. The stone columns have a cementing agent for stabilization.Type: GrantFiled: October 19, 2022Date of Patent: June 27, 2023Assignee: Prince Mohammad Bin Fahd UniversityInventors: Tahar Ayadat, Danish Ahmed
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Patent number: 11661709Abstract: A flexible pavement structure comprises a surface layer, a base layer, a sub-base layer, and a subgrade layer. Herein, the surface layer is adjacent to and above the base layer, and the sub-base layer is adjacent to and above the subgrade layer. The flexible pavement structure further comprises a layered system composed of first, second, and third materials different from each other, and is disposed as an interface layer between the base layer and the sub-base layer. The first material is a geotextile fabric selected from a group consisting of polypropylene and polyethylene, providing ground stabilization or reinforcement properties. The second material is a waterproof heat insulation material selected from a group consisting of cross-linked polyethylene foam and laminated aluminum foil, providing waterproofing or impermeability properties. The third material is a glass foamed insulation material.Type: GrantFiled: October 21, 2022Date of Patent: May 30, 2023Assignee: Prince Mohammad Bin Fahd UniversityInventor: Tahar Ayadat
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Patent number: 11661710Abstract: A flexible pavement structure comprises a surface layer, a base layer, a sub-base layer, and a subgrade layer. Herein, the surface layer is adjacent to and above the base layer, and the sub-base layer is adjacent to and above the subgrade layer. The flexible pavement structure further comprises a layered system composed of first, second, and third materials different from each other, and is disposed as an interface layer between the base layer and the sub-base layer. The first material is a geotextile fabric selected from a group consisting of polypropylene and polyethylene, providing ground stabilization or reinforcement properties. The second material is a waterproof heat insulation material selected from a group consisting of cross-linked polyethylene foam and laminated aluminum foil, providing waterproofing or impermeability properties. The third material is a glass foamed insulation material.Type: GrantFiled: October 27, 2022Date of Patent: May 30, 2023Assignee: Prince Mohammad Bin Fahd UniversityInventor: Tahar Ayadat
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Patent number: 11661711Abstract: A flexible pavement structure comprises a surface layer, a base layer, a sub-base layer, and a subgrade layer. Herein, the surface layer is adjacent to and above the base layer, and the sub-base layer is adjacent to and above the subgrade layer. The flexible pavement structure further comprises a layered system composed of first, second, and third materials different from each other, and is disposed as an interface layer between the base layer and the sub-base layer. The first material is a geotextile fabric selected from a group consisting of polypropylene and polyethylene, providing ground stabilization or reinforcement properties. The second material is a waterproof heat insulation material selected from a group consisting of cross-linked polyethylene foam and laminated aluminum foil, providing waterproofing or impermeability properties. The third material is a glass foamed insulation material.Type: GrantFiled: October 28, 2022Date of Patent: May 30, 2023Assignee: Prince Mohammad Bin Fahd UniversityInventor: Tahar Ayadat
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Patent number: 11542667Abstract: A flexible pavement structure comprises a surface layer, a base layer, a sub-base layer, and a subgrade layer. Herein, the surface layer is adjacent to and above the base layer, and the sub-base layer is adjacent to and above the subgrade layer. The flexible pavement structure further comprises a layered system composed of first, second, and third materials different from each other, and is disposed as an interface layer between the base layer and the sub-base layer. The first material is a geotextile fabric selected from a group consisting of polypropylene and polyethylene, providing ground stabilization or reinforcement properties. The second material is a waterproof heat insulation material selected from a group consisting of cross-linked polyethylene foam and laminated aluminum foil, providing waterproofing or impermeability properties. The third material is a glass foamed insulation material.Type: GrantFiled: June 28, 2022Date of Patent: January 3, 2023Assignee: Prince Mohammad Bin Fahd UniversityInventor: Tahar Ayadat
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Patent number: 11225767Abstract: The present disclosure discloses an earthen dam structure including a core wall that includes a homogeneous mixture of clay, sand, powdered tire rubber and Portland cement. Additionally, the core wall contains the powdered tire rubber in an amount sufficient to increase a modulus of elasticity of the core wall to over 10 MPa while keeping a hydraulic conductivity of the core wall under 100 feet/year. The earthen dam structure further includes an upstream embankment portion and a downstream embankment portion, each positioned adjacent to the core wall, and a spillway configured to prevent water from overtopping a crest of the core wall.Type: GrantFiled: September 1, 2021Date of Patent: January 18, 2022Assignee: Prince Mohammad Bin Fahd UniversityInventors: Tahar Ayadat, Andi Asiz
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Patent number: 11215549Abstract: A permeameter apparatus and method of measuring hydraulic permeability of porous samples, that includes multiple tube manometers stacked vertically at equal intervals on the same side wall of a compression cell containing the sample. The levels of the water menisci in the stacked manometers characterize the temporal and spatial profile of hydraulic conductivity, which can be measured in the constant and falling head regimes in the same apparatus. The apparatus is enabled with a sample compression system imitating the geostatic pressure profiles at different depths of the sample extraction. The apparatus and method allow measurement of time-dependent hydraulic conductivity in anisotropic media at variable pressures.Type: GrantFiled: September 16, 2020Date of Patent: January 4, 2022Assignee: Prince Mohammad Bin Fahd UniversityInventor: Tahar Ayadat
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Publication number: 20210381946Abstract: A permeameter apparatus and method of measuring hydraulic permeability of porous samples, that includes multiple tube manometers stacked vertically at equal intervals on the same side wall of a compression cell containing the sample. The levels of the water menisci in the stacked manometers characterize the temporal and spatial profile of hydraulic conductivity, which can be measured in the constant and falling head regimes in the same apparatus. The apparatus is enabled with a sample compression system imitating the geostatic pressure profiles at different depths of the sample extraction. The apparatus and method allow measurement of time-dependent hydraulic conductivity in anisotropic media at variable pressures.Type: ApplicationFiled: September 16, 2020Publication date: December 9, 2021Applicant: Prince Mohammad Bin Fahd UniversityInventor: Tahar AYADAT
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Patent number: 10809175Abstract: A permeameter apparatus and method of measuring hydraulic permeability of porous samples, that includes multiple tube manometers stacked vertically at equal intervals on the same side wall of a compression cell containing the sample. The levels of the water menisci in the stacked manometers characterize the temporal and spatial profile of hydraulic conductivity, which can be measured in the constant and falling head regimes in the same apparatus. The apparatus is enabled with a sample compression system imitating the geostatic pressure profiles at different depths of the sample extraction. The apparatus and method allow measurement of time-dependent hydraulic conductivity in anisotropic media at variable pressures.Type: GrantFiled: June 4, 2020Date of Patent: October 20, 2020Assignee: Prince Mohammad Bin Fahd UniversityInventor: Tahar Ayadat