Abstract: This paper presents a case history of earthwork quantities estimation for the construction of a large embedded box culvert in a Meishan wastewater treatment plant by using commercial software for earthwork estimation FastTFT. Based on the required excavation depth for the box culvert and the geotechnical investigation information, the earthwork for each soil stratum can be accurately estimated. The required excavation quantities of the following soil layers are estimated: topsoil, silty clay, clay, fine sandy gravel and gravel. The subsurface soil profiles and the location of culvert bottom slab can be generated based on these accurate estimations. The earthwork quantity estimation can be used for the cost estimation and for the optimization design of the box culvert locations.

Key words: Borehole Locations, Natural Ground Elevation, Design Elevation, Earthwork