Handling of rock- and soil masses at construction projects

Abstract: This report describes how the handling of excavation residues is conducted in Stockholm. The report is the result of a thesis that is done during 2010 at Linköpings Universitet, in conjunction with NCC Construction Sverige. The report aims to see how NCC works with the masses that arise in production. The report focuses on how excavation residues is handled in Stockholm and in two construction projects that NCC conducts in Stockholm, “Citybanan” and the expansion of “Henriksdals sewage treatment plant”. The report makes a comparison between the two projects where the differences and similarities are described. The report is based on fact finding and also interviewing and consulting with people familiar with the subject. In major construction projects are often large quantities of excavation masses. The masses can be either soil or crushed rock. To handle these loads in an efficient manner is important in many aspects. To have an effective management of excavation residues is an important part of the stage to get an efficient build process. Construction of “Citybanan” and the expansion of “Henriksdals sewage treatment plant” are two projects in which the handling of loads plays an important role. Both projects are conducted in an urban environment where the free space around the workplace is very limited. The work has shown that NCC has good procedures for mass handling and in both the investigated projects the mass handling proceeded without major problems. Another conclusion is that the recycling rate of materials has increased in recent years.