Viitteet 1-10 / 10
Stress-strain hysteresis shape estimation of different soils using deformation-history integral (DHI) model
Different soils show different nonlinear stress-strain patterns. Hence, it is difficult to come up with a general model to predict these shapes. This study investigated the suitability of the DHI model which was not ...
Artificial neural networks models for rate of penetration prediction in rock drilling
Prediction of the rate of penetration (ROP) is an important task in drilling economical assessments of mining and construction projects. In this paper, the predictability of the ROP for percussive drills was investigated ...
Greenland Geothermal Heat Flow Database and Map (Version 1)
We compile and analyze all available geothermal heat flow measurements collected in and around Greenland into a new database of 419 sites and generate an accompanying spatial map. This database includes 290 sites previously ...
Comparison of community managed projects and conventional approaches in rural water supply of Ethiopia
This study aimed to compare Community Managed Projects (CMP) approach with the conventional approaches (Non-CMP) in the case of Ethiopia. The data collection methods include a household survey (n=1806), community representative ...
Modelling of plastic culvert and road embankment interaction in 3D
A series of 3D Finite Element simulations was performed to investigate the effect of different factors influencing the distortions undergone by a plastic culvert tube while subject to external loading from a heavy truck. ...
3D Finite Element Model as a Tool for Analyzing the Structural Behavior of a Railway Track
The rising public and commercial demands on railway network increases the need to improve systems that comprise the railway network. Especially in case of mixed corridors, the demands for track smoothness and load carrying ...
Problems with Railway Track Drainage in Finland
Several studies have shown that water plays a significant role in phenomena that weaken track geometry. For instance, water may cause frost heave, thaw softening, attrition of ballast, and weakening of the load bearing ...
Measuring sustainable urban development in residential areas of the 20 biggest Finnish cities
As a result of the ongoing urbanization megatrend, cities have an increasingly critical role in the search for sustainability. To create sustainable strategies for cities and to follow up if they induce desired effects ...
Commercialising reclaimed materials in earthworks – guidelines for productization and the process of appending these materials in the Finnish national code of practice
(Icelandic Geotechnical Society, 2016)
To decrease the use of non-renewable natural resources as well as environmental effects of earth-works, natural aggregate materials can be replaced with recycled materials acquired from surplus soil, industrial by-products ...
Problems related to field vane testing in soft soil conditions and improved reliability of measurements using an innovative field vane device
In Finland, undrained shear strength is commonly measured using the field vane shear test (FV). Currently, the most commonly used field vane testers are the Nilcon vane and the electrical vane with shear rotation and ...