Abstract
Foundation design must satisfy limited values of settlement. Settlement is an essential criterion in the design process of shallow foundations. To calculate the settlement under different types of shallow foundations, 79 samples were taken from twenty-three sites distributed in three regions: Mosul, Baghdad and Basrah in the northern, central and southern parts of Iraq. Field and laboratory tests were performed to obtain the strength parameters to calculate the bearing capacity. The results obtained for the bearing capacity were used in SAFE software. The software was used to design and analyze the foundation and to calculate the settlements under two types of foundations (raft and continuous) for the three regions. Average and minimum values of bearing capacity were used. The software used subgrade reaction modules values for the design and analysis. According to the results, the suitable, safe and economical type of foundation to be used in Mosul, Baghdad and Basrah regions for the average value of bearing capacity is the continuous type for the first two regions while the raft type is recommended for Basrah region. In case that the minimum bearing capacity values are used, raft foundation is recommended for Mosul and Baghdad. While deep foundation is the suitable type of foundation for Basrah region.
Highlights
The design of foundations must satisfy limiting values of the settlement
The results were illustrated in the form of contours as follows: The displacement under foundation for the average value of bearing capacity in Mosul region is shown in Figure 3 for both raft and continuous types; the displacement value was 5.2 mm and 6 mm respectively
SAFE software was applied on a hypothetical building on three regions in Iraq (Mosul, Baghdad and Basrah at the northern, central and southern parts of Iraq) to find out the most suitable foundation required in each region
Summary
The design of foundations must satisfy limiting values of the settlement. Settlement is an essential criterion inHow to cite this paper: Al-Taie, E., Al-Ansari, N. and Knutsson, S. (2015) Estimation of Settlement under Shallow Foundation for Different Regions in Iraq Using SAFE Software. The two major criteria which control the design of shallow foundations on cohesion and cohesionless soils are the settlement and the bearing capacity of the soil beneath the foundation. Settlement usually controls the design process more than bearing capacity, especially when the width of foundation (B) exceeds 1 meter. Estimation of settlement of shallow foundations on soil facing problem related to uncertainty associated with the factors which affect the value of the settlement. These factors are: the history of the stress-strain of the soil, the distribution of applied stresses, the effect of soil compressibility, and the difficulty in obtaining undisturbed samples of cohesionless soil [1]. Uniform settlement will not cause any damages in the structure but damages can be noticed in the drainage or at interface with utilities
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
