Distribution pattern of soil bearing capacity on the island of Sumatra using field testing data from standard penetration test (SPT) method

Abstract

Construction of a structure, whether in the form of buildings, bridges and roads, begins with planning. Planning comprise of foundation and the main structure above the ground. Particularly within planning such foundation require data related to the bearing capacity of the soil. This data is obtained from the results of soil testing in the field, one of which is by using the Standard Penetration Test (SPT) method. The test data are then analysed and interpreted into a value that describes the strength of the soil based on the origin. In the development of infrastructure such as toll roads, a large amount of data specifying bearing capacity of the soil is required. The more data that is known, the design planning and construction implementation in the field will be better and have better quality. Acquiring the bearing capacity data in the field requires no small fee and also a relatively long testing time. One solution that can be used is to map the distribution pattern of the bearing capacity of the soil in a very large area, for example the island of Sumatra. The island of Sumatra is part of Indonesia, where infrastructure development in the form of toll roads is currently underway. The infrastructure construction of this toll road is carried out continuously, starting from Aceh to Lampung. The distribution pattern of the soil bearing capacity on the island of Sumatra can be used as initial data and an overview of the local soil bearing capacity for better pre-design and budget planning.