This paper addresses the problem of quantifying the mechanical contribution of rockbolts installed systematically around tunnels (regularly spaced around the tunnel) excavated in rock masses. Assuming that the mechanical contribution of grouted rockbolts is that of increasing internal pressure within a broken rock mass, a new procedure for computation of ground response curves for a circular tu...

A Decision Support System (DSS) in tunnelling domain deals with identifying pathologies based on disorders present in various tunnel portions and contextual factors affecting a tunnel. Another key area in diagnosing pathologies is to identify regions of interest (ROI). In practice, tunnel experts intuitively abstract regions of interest by selecting tunnel portions that are susceptible to the s...

objectives in order to increase the classification accuracy of airs, this study introduces a new hybrid system that incorporates a support vector machine into airs for diagnosing tuberculosis. background tuberculosis (tb) is a major global health problem, which has been ranked as the second leading cause of death from an infectious disease worldwide. diagnosis based on cultured specimens is the...

Although subterranean termite (Isoptera: Rhinotermitidae) foraging behavior involves the construction of gallery systems in soil, few studies have examined how colony size or soil environmental factors influence rates of construction and morphology of gallery systems. In this study, we investigated the effects of soil texture, soil moisture, and termite density on the rate of tunnel constructio...

The paper introduces the potentiality of wireless communications in road safety improvement. New systems based on Vehicle/infrastructure and vehicle/vehicle cooperation are enabled. The results of a recent project “SAFE TUNNEL” and new projects like “SAFESPOT”, “GOODROUTE”,”WATCHOVER”, are described. All these research projects are co-funded by European Commission (EC) and witness the strong co...

In this paper, the author studies about the traffic safety technology of highway tunnel group. In this study measured traffic safety technology in the access zone of tunnels including tunnel luminance under diverse climate conditions were measured and luminance of the threshold zone were estimated. Then operating traffic safety technology of tunnel in China was compared and analyzed and, based ...

in management accounting information systems, managers use accounting information systems to be able to predict or have the data structured by the use of decision support systems and business intelligence. so, the use of management accounting information systems is necessary in management decision-making process based on decision support and business intelligence. this paper reviews the liter...

The potential of machine learning (ML) tools for enhancing geotechnical analysis has been recognized by several researchers. However, obtaining a sufficiently large digital dataset is major technical challenge. This paper investigates the use transfer learning, powerful ML technique, used overcoming size limitations. study examines two scenarios where applied to tunnel support analysis. first s...

According to construction scheme of some weak surrounding rock large span double and multi-arch tunnel works, finite element value simulation method is adopted to research weak surrounding rock deformation characteristic, anchor bolt mechanics characteristic, preliminary support and secondary lining structure mechanical characteristics, etc, and the research result shows that: repeatedly distur...