The concept of construction time has been mentioned by most researchers as one of the key factors of a successful project. Time-cost model for rapid estimation of construction time appeared in the world some fifty years ago and the most mentioned is model developed by Bromilow. The purpose of submitted research is to validate Bromilow´s time-cost (BTC) model and identify constants in BTC model in context with residential construction projects in Slovak construction conditions. The data for the study were obtained from 28 residential projects completed within the period 2010-2013 in regions of Slovakia. The data were analyzed using classical correlation and regression analysis
In the paper the numerical modelling of ensuring slope stability and their analysing with using of different numerical methods are presented. We have designed the cutting walls with earth nails and anchors securing for modelling of slope stability ensuring. The calculate and the mechanism of failure process of the reinforced slopes were studied using the different methods for slope stability. The nailing significantly increased the stability level for using Spencer method. The anchors increased the stability level for using Spencer method. Increasing the nail or anchors length improved the stability of the reinforced slopes. The reinforced slope exhibited a significant the stability level.
The slope stability of a water construction in four cross-profiles is analyzed in the article and the factors of safety reviewed. The GEO 5 software package for slope stability calculations is an essential component of work. The computer software was employed to simulate and calculate the stability in the particular profiles of the downstream and upstream slopes of the Domaša Dam. Bishop, Petterson and Sarma methods were applied to determine the critical factors of safety.
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