Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Clayey soil

Strength and Consolidation Characteristics of Compacted Clayey Soil Having a Special Case of Standard Compaction Curve

Ibrahaim M. Al-Kiki; Abdulrahman H. Al-Zubaydi; Moafaq A. Al-Atalla

Engineering and Technology Journal, 2013, Volume 31, Issue 9, Pages 1791-1801

This paper deals with the results of an experimental study carried out on compacted clayey soil, to investigate the strength and consolidation characteristics of this soil. This soil having special case of standard compaction curve contain two values of maximum dry unit weight and two values of optimum moisture content between these point minimum dry unit weight was occurred.
The results show that the maximum compressive and tensile strength lies on point near the point of second peak on standard compaction curve. Also the maximum bearing capacity and minimum settlement at the same point on standards compaction curve. Finally the preferred zone to conducted the compaction in field at this point where the dry unit weight at this point was 16.5kN/m3 while the moisture content was 18%.

One Parameter Composite Semigroups of Linear Bounded Operators in Strong Operator Topology of Schatten Class Cp

Samir Kasim Hassan; Al-Taie M; Al-Malki Anam; Al-Attar Abeer; Mustafa Khaleel Ismael; Fatema Ahmed Sadeq; Radhi A .Zboon; Jehad R.Kider; Samir K .Hassan; Hussain J. M. Alalkawi; Raad H. Majid; Rawaa A. Alomairy; Luma Abdul Ghani Zghair; Hadia Kadhim J.Al-Ogili; Assifa M. Mohamad; Abbas Sheyaa Alwan; Haider L. Aneed; Assim H Yousif; Salema Sultan Salman; Abbas Hussien Miry; Abduladhem A.Ali; Mohammed Zeki Al-Faiz; Sabah N. mahmood; Khansaa Dawood Selman; Shaymaa Tareq Kadhim

Engineering and Technology Journal, 2011, Volume 29, Issue 8, Pages 1463-1470

For semigroups of linear bounded operators on Hilbert spaces, the problem of
being in Cp , 0 Keywords

Studying the Behavior of Axially Loaded Single Pile in Clayey Soil with Cavities

Shaymaa Tareq Kadhim

Engineering and Technology Journal, 2011, Volume 29, Issue 8, Pages 1619-1630

This paper deals with the interaction between cavities and adjacent axially loaded pile in clayey soil using the three dimensional finite element program (ANSYS 11.0).Three dimensional SOLID45 and SOLID65 elements were used to model the soil and the reinforced concrete pile respectively. Druger- Prager model is chosen to simulate the non-linear elastic-plastic clayey soil, concrete model is used to simulate the nonlinear behavior of concrete pile, the steel bars are assumed to be embedded in concrete section. A comparison of the behavior of load-settlement curve, shear stress on pile (τxy) and lateral soil stress on pile (σx) is made for cases of the variation in the cavity positions in the vertical direction (Z-direction) with case of no cavity. It has been found that the effect of the cavity on the shear stress along pile length (τxy) and on the lateral soil stress on pile
(σx) is ignored to the depth greater than (20%) of the pile length from the ground level. Furthermore, the load-settlement curves are quite difference if compared with reference case of no cavity due to the cavity position near the face of pile.