http://www.iaeme.com/IJCIET/index.asp 66 editor@iaeme.com International Journal of Civil Engineering and Technology (IJCIET) Volume 10, Issue 11, November 2019, pp. 66-71, Article ID: IJCIET_10_11_008 Available online at http://www.iaeme.com/ijciet/issues.asp?JType=IJCIET&VType=10&IType=11 ISSN Print: 0976-6308 and ISSN Online: 0976-6316 © IAEME Publication THE CHANGES OF FRICTION CAPACITY OF THE PILE TO SUPPORT SLAB PAVEMENT DUE TO LATERAL LOADS Adolf Situmorang Ph.D Candidate Universitas Islam Sultan Agung and Lecturer in Civil Engineering Faculty, Universitas Semarang, Jalan Sukarno Hatta Central Java 50196, Indonesia Corresponding Author: situmorangadolf@usm.ac.id Pratikso, Abdul Rochim Civil Engineering Departement, Universitas Islam Sultan Agung, Jalan Raya Kaligawe, Central Java 50112, Indonesia ABSTRACT Soft soils become one of the obstacles in building roads, where the carrying capacity of soft soils is very low and can make the pavement unstable on soft soils. There are several types of pavement that can be built on soft soil, one of which is rigid pavement that is added to the pile as an anchor under the slab pavement, and it is hoped that the pile will be able to support the slab of pavement so that the pavement is not damaged. Lateral loading is one of the important things that must be calculated in the design of road pavement, especially rigid pavement or slab pavement with piles. From this study the effect of lateral loading can reduce the carrying capacity of the pile so that it is feared that it will reduce the performance of rigid pavement, which can result in failure of the pavement structure. From the results of this study, the carrying capacity of piles decreased by 28%, especially the carrying capacity of pile friction due to gap changes, so the coefficient factor in the formulation of carrying capacity for shallow foundations must be multiplied by 78%. Keywords: Gap, pile deformation, slab of pavement Cite this Article: Adolf Situmorang and Pratikso, Abdul Rochim, The Changes of Friction Capacity of the Pile to Support Slab Pavement Due to Lateral Loads. International Journal of Civil Engineering and Technology 10(11), 2019, pp. 66-71. http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=10&IType=11