DOWNLOAD Editorial - 2011/1 next article Ludvik Trauner

Editorial

We would like to announce that the Editorial Board of the scientific journal Acta Geotechnika Slovenica (AGS) has three new members: Prof. Dr. Devendra Narain Singh (Indian Institute of Technology, Bombay), Prof. Dr. Jianhua Yin (The Hong Kong Polytechnic University) and Prof. Dr. Nasser Khalili (The University of New South Wales, Sydney). With their help, AGS will become an even more recognized and useful journal in the broad geotechnical field. We would like to express our thanks for their active cooperation in publishing high-quality articles.

This issue of AGS brings together six interesting articles.

The authors of the first contribution, Luca Borio, Daniele Peila and Sebastiano Pelizza, deal with one of the most important procedures during the mechanized method of tunnel excavation, i.e., the instantaneous filling of the annulus that is created behind the segment lining at the end of the tail during the TBM advance. In their article, different systems of such grout back-filling are analyzed. In particular, a two-component system injection is presented together with the results and analyses of laboratory tests.

Matevž U. Pavlič and Blaž Praznik describe ground-penetrating radar measurements that were carried out for the purpose of detecting subsurface karstic features during the construction of the national highway in the south-eastern part of Slovenia. The expected highway route is located mostly in the dinaric karstic region with a high density of karstic features visible on the surface. The ground-penetrating radar method was chosen because of the heterogeneous nature of the karst, where conventional research methods are not suitable.

The third article, by Laredj Nadia, Missoum Hanifi, Bendani Karim and Maliki Mustapha, presents a numerical formulation for coupled thermo-hydro-mechanical processes in unsaturated expansive clays, especially in compacted bentonite, with a multiphase fluid flow. The implied model is applicable to two-dimensional problems with various initial and boundary conditions.

Mehrad Kamalzare and Reza Ziaie-Moayed present their test results of shear strength, performed on unreinforced and reinforced samples with different geosynthetics. The results show that the inclusion of these materials can increase or decrease the shear-strength parameters of the interface of two-layered soils.

In their paper, Djamalddine Boumezerane, Smaïn Belkacemi and Bojan Žlender introduce a fuzzy-sets decision-support system that allows an estimation of the research points needed for the necessary characterization of a site, based on qualitative and quantitative information. The cases presented show that a Fuzzy Inference System can be used as a systematic decision-support tool for engineers dealing with site characterizations.

The sixth article by Đorđe Ćosić, Srđan Popov, Dušan Sakulski and Ana Pavlović shows a risk-assessment method that includes, apart from hazards, parameters such as vulnerability, exposure and safety. It also involves the environmental and social components of risk management.

Ludvik Trauner
Editor-in-chief