From 2000-2006 Senior Engineer Ministry of Construction and Housing
From 2006-2009 Research Student, University of Mosul
From 2009 to 2013, Assistant Chief Engineer of the Ministry of Construction and Housing
From 2013 to 2020, a research student at the University of Mosul
From 2020 to 2021 Senior Chief Engineer Nineveh Governorate / Nineveh Housing Department
From 2021-now, teacher at the Technical Institute in Mosul
EDUCATION
Phd. in civil engineering
RESEARCH INTERESTS
technological
4
Scopus Publications
7
Scholar Citations
2
Scholar h-index
Scopus Publications
Failure Risks at the Bashtapia Castle Due to Fluctuations in Tigris River Levels Tareq H. Al-Rahal, Harith E. Ali, Yasir M. Al-Badran Engineering Technology and Applied Science Research, 2025 The current study investigates the stability of Bashtapia Castle (BC) in Mosul, northern Iraq, using two different methodological approaches. The first approach was applied during the early stages of the castle construction, before the Tigris River (TR) reaches the site. The second approach involves assessing the castle's stability under changing levels of the TR. These assessments focus on the stability of the castle trench slopes using Geo-Studio finite element software. The evaluation criteria were based on historical studies and field investigations. Unsaturated strength properties for ditch slope materials beneath the castle structure were obtained and incorporated into the Geo-Studio analysis, including water retention curves, hydraulic conductivity, modulus of elasticity, cohesion, and internal friction angle. The results indicate that the castle construction slightly decreased both the Factor of Safety (FoS) and the shear resistance of the trench slope. Meanwhile, the contact between the TR and the trench slope materials increased the Pore Water Pressure (PWP) and settlement, leading to a reduction in the FOS and shear resistance of these materials.
Strengthening the Slope Beneath Bashtapia Castle at the Highest Expected Tigris River Level Tareq H. Al-Rahal, Harith E. Ali E3s Web of Conferences, 2023 This study has been achieved using Geo-Studio Finite Element Software in two sections. First, to study the changes in pore water pressure (PWP) within the soil layers below Bashtapia Castle at different water levels of the river Tigris. The effect of these changes was in focus to check the slope stability of the Castle. On the other hand, the second section was to increase the safety factor using slope reinforcement using different spacings and lengths of the anchor’s rods. Modeling output showed that the factor of safety (FS) decreased from 2.83 to 0.838 when the water level raised from 0 to 7 m above the bottom slope layer. Accordingly, anchor bars were introduced in the model, and the safety factor increased. The slope layers were treated and strengthened using reinforcing anchor bars at different lengths and numbers. In general, the analysis results showed the positive effect of reinforcing bars on the stability of the castle slope. The FS of the slope castle increases with the increased length and number of anchors to a certain value, and then there is no effect of this increase on the FS value.
Effect of static and dynamic loadings on unsaturated soil slope stability Tareq H. Al-Rahal, Suhail I. A. Khattab, Bayer J. Al-Sulaifanie Aip Conference Proceedings, 2020 The objective of This study is to find the effect of dynamic loads on slope stability. The parameters studied in this research are horizontal displacement of vibration, frequency, suction values and the form of slope failure. A laboratory model was manufactured in the form of a box with dimensions of (2000 X 1000 X 1450) mm that slides on a rail installed on the ground and moved by a dynamically generated system. To explain the effect of dynamic load. three dynamic tests were performed. The one direction horizontal vibration displacement of the first, second and third tests are (10, 20 and 40) mm respectively. Dynamic conditions were applied as a horizontal vibration at frequencies of (0.5, 1.0 and 2.0) Hz. The time duration for each frequency value is (3) minutes. The acceleration during vibrations was measured during the test with an accelerometer that was placed inside the soil and on the shaking table. The main results showed that the dynamic load was negatively affected in its slope bearing capacity. It decreased from (408) kPa at the static test to (382.6, 306, 280.6 kPa) at the three dynamic tests, respectively. On the other hand, the measured amount of initial negative pore water pressure (suction) of the layers (upper, middle and lower) was found to be (25, 23, and 21) kPa respectively. Results also showed that the suction values were slightly changed during the tests. The experimental results were compared with that obtained from numerical simulation using Geo Studio software. Experimental results are nearly identical to that obtained from numerical analyses.
RECENT SCHOLAR PUBLICATIONS
Failure Risks at the Bashtapia Castle Due to Fluctuations in Tigris River Levels TH Al-Rahal, HE Ali, YM Al-Badran Engineering, Technology & Applied Science Research 15 (4), 25363-25368 , 2025 2025
Strengthening the Slope Beneath Bashtapia Castle at the Highest Expected Tigris River Level TH Al-Rahal, HE Ali E3S Web of Conferences 427, 01014 , 2023 2023 Citations: 1
Effect of Rainfall and Dynamic Loading Conditions on Unsaturated Soil Slopes Stability TH AL-Rahal, SI Khattab, BJ Al-Sulaifanie Modern Applications of Geotechnical Engineering and Construction … , 2020 2020 Citations: 1
Numerical Investigation the Failure Mechanism of Left Slope of Darbandikhan Dam TH AL-Rahal, SI Khattab, BJ Al-Sulaifanie Al-Rafidain Engineering Journal (AREJ) 25 (2), 1-11 , 2020 2020 Citations: 3
Effect of static and dynamic loadings on unsaturated soil slope stability TH Al-Rahal, SIA Khattab, BJ Al-Sulaifanie AIP Conference Proceedings 2213 (1), 020062 , 2020 2020 Citations: 2
MOST CITED SCHOLAR PUBLICATIONS
Numerical Investigation the Failure Mechanism of Left Slope of Darbandikhan Dam TH AL-Rahal, SI Khattab, BJ Al-Sulaifanie Al-Rafidain Engineering Journal (AREJ) 25 (2), 1-11 , 2020 2020 Citations: 3
Effect of static and dynamic loadings on unsaturated soil slope stability TH Al-Rahal, SIA Khattab, BJ Al-Sulaifanie AIP Conference Proceedings 2213 (1), 020062 , 2020 2020 Citations: 2
Strengthening the Slope Beneath Bashtapia Castle at the Highest Expected Tigris River Level TH Al-Rahal, HE Ali E3S Web of Conferences 427, 01014 , 2023 2023 Citations: 1
Effect of Rainfall and Dynamic Loading Conditions on Unsaturated Soil Slopes Stability TH AL-Rahal, SI Khattab, BJ Al-Sulaifanie Modern Applications of Geotechnical Engineering and Construction … , 2020 2020 Citations: 1
Failure Risks at the Bashtapia Castle Due to Fluctuations in Tigris River Levels TH Al-Rahal, HE Ali, YM Al-Badran Engineering, Technology & Applied Science Research 15 (4), 25363-25368 , 2025 2025
