Importance of Results Obtained from Geotechnical Monitoring for Evaluation of Reinforced Soil Structure – Case Study

Abstract

In the case of realized geotechnical monitoring (GTM) of reinforced retaining wall in difficult geological conditions is demonstrated the important role at realisation of transport infrastructures, which are often realized in insufficient quality due to inappropriate geotechnical parameters from survey works or not fitted well design of structure at certain conditions. This can result in large deformations of structure, or losing stability or structure life-time is very limited and remediation work is complicated and expensive. There was built on the modernized railway line Bratislava – Trenčín, closed to Zlatovce, overpass and connected road embankments on the route of first class I/61. Structure was designed as a bridge over the railway track before the northern portal of the railway tunnel Turecký vrch was open. A part of the embankment and overpass was a retaining wall reinforced by geosynthetics. The results of the geotechnical monitoring of this wall were afterwards simulated using finite element method (FEM) and results of this comparison are the scope of this article.

Measurement of Axial Strain of Geogrid by Optical Sensors

“…The presented innovative use of FBG sensors cannot miss the important target of research. Numerical computational models are common and popular in engineering applications but the reliability of results strongly depends on the skills and knowledge of the user, and the discretization of FEM code [ 1 ]. Therefore, comparison and validation with physical models or real measurements on built structures are necessary [ 7 , 24 ].…”

“…During the monitoring of a construction such as piled embankment, it is necessary to monitor not only the distribution of the load in the piled embankment ( Figure 1 ) but also the tensile forces acting in the basal reinforcement, which can cause axial strain of the reinforcement [ 1 ].…”

Preliminary results of dry Deep Soil Mixing soil-cement composite testing

“…To sum up, increase of binder content leads to better soil-cement properties; however it should be born in mind that such material has very random properties dependent on many factors. Hence, economic application of DSM Dry technology may require detailed testing and supervision for each one project under design [16][17][18]. The above analysis was aimed at determining of cement-soil properties.…”

Site control procedures for applicability and quality of Rapid Impulse Compaction

“…As less and less areas are available for construction activity, the work must be run close to existing structures or residential buildings. While planning to use such methods on site, their influences on surroundings need to be considered and the unwanted effects need to be monitored continuously [1], [2], [3]. Dynamic economic development, consequently the urbanization and extension of road and railway infrastructure forces development of areas which not so long ago were considered as totally useless for construction purposes.…”