A Review of Shear Resistance of Rockfill Using Large Scale Shear Tests.

Autor: Dehghanian, Kaveh, ZAFAR, Sayed Mansoor, ÇALTILI, Emrah, KOÇAK DİNÇ, Beste, SOYSAL, Hakan Murat
Předmět:
Zdroj: International Journal of Electronics, Mechanical & Mechatronics Engineering; 2019, Vol. 9 Issue 1, p1647-1656, 10p
Abstrakt: Earth and rockfill dams, because of their special characteristics compared to concrete dams, are widely used in construction throughout the world. Rockfill dams are more flexible, have capacity to absorb large seismic energy, and adaptability to various foundation conditions. The use of modern earth and rock equipment and locally available materials make such dams economical as well. Therefore, improving the knowledge of experts about the design and maintenance of these dams are vital. Different reports of settlement and deformation of operating rockfill dams depict the importance of technique improvements and designing new test apparatus to monitor them. The behavior of these materials, specifically their shear strength are not fully understood. Several types of laboratory devices have been developed to estimate the of these materials. Among these devices, direct shear test has been employed most commonly owing to its simplicity and low-cost compared to triaxial and other methods. Traditional laboratory direct shear tests are not appropriate for investigation of rockfill materials which have large-sized particles. In this case, laboratory large scale direct shear tests are required to be performed on these materials. In this paper, a brief review of parameters affecting shear resistance of these particles and a history of large scale tests are presented. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index