Innovative Infrastructure Solutions

http://link.springer.com/journal/41062

List of Papers (Total 103)

Finite element slope stability analysis of Souk Tleta dam by shear strength reduction technique

Slope stability analysis of earth dam is very important to ascertain the stability of the structure. The stability of earth dam depends on its geometry, components materials, water pressure and the forces to which it is subjected. Souk Tleta earth dam, currently under construction, is located on Bougdoura River, in north Algeria. The main purpose of the dam is to store surface ...

Effect of geogrid reinforcement on flexible pavements

Effectiveness of geogrids in flexible pavement reinforcement was investigated throughout laboratory testing and finite-element analysis (FEA). The laboratory testing involved routine material characterization, resilient modulus testing, and five pavement prototype sections. These sections consisted of a 5 cm asphalt concrete (AC) layer, 15 cm granular base layer, and a 30 cm clay ...

River embankment strengthening by non-metallic nails: overview on a permanent soil nailing for flood protection

River embankments, levees, and coastal dikes are often subject to important remediation and ground improvement works. Such actions will become increasingly important in the future: we have to consider the strategic position of such structures along urban shorelines and waterways together with the ongoing sea-level rising process. In this paper, the application of a permanent soil ...

Minimizing the use of concrete in tunnels and caverns: comparing NATM and NMT

For many decades, a tunnelling method has been in use which effectively minimizes the use of concrete, which should be one of the goals in our CO2-producing planet. We call the method NMT (Norwegian Method of Tunnelling) and emphasize its ‘single-shell’ characteristics, to distinguish it clearly from double-shell NATM (the so-called New Austrian Tunnelling Method), which is ...

Utilization of weathered rock mass as the China Three Gorges Project Dam foundation

The utilization of the weathered rock mass in the Three Gorges Dam Area is one of the key geotechnical issues for the China Three Gorges Project (CTGP) construction. Engineering geological investigations and tests had been carried out to study the physical, chemical, mineral and mechanical properties and distribution characteristics in detail for more than 30 years. The ...

Behaviour of model footing resting on sand reinforced with number of layers of coir geotextile

Several methods of ground improvement techniques were developed and tried for stabilizing weak soils. The technique of reinforcing the soil becomes one of the important methods. The performance of granular soils which are strong in compression and shear, but weak in tension can be substantially improved by introducing reinforcing element in the direction of tensile strain. Compared ...

Risk analysis-driven design in tunnelling: the state-of-the-art, learnt from past experiences, and horizon for future development

Risk management became an integral part of most underground construction projects during the late 1990s, also considering the increasing requests in term of safety, and environmental and socio-economic sustainability coming from citizens, owners, lenders, and insurers. The application of risk management procedures, today widely applied, ensures that design’s team efforts can be ...

A convergence criterion for water conveyance tunnels

One of the important methods used by tunnel construction engineers to examine the design, construction safety factor, and tunnel boring procedures is convergence measurement. Larger convergences may lead to safety problems such as rock destruction, boring machines jamming, delays in projects, or even geological disasters, in which case convergence measurement is considered the best ...

Modified clays for barriers: a review

The aim of this Specialized Lecture is to present the recent advances and issues, as well as original research, on Modified Clays for Barriers. Topics of interest include: (1) long-term hydraulic performance of modified clays for GCLs, (2) chemico-osmotic and diffusion efficiency of modified clays, (3) modeling coupled chemical-hydraulic-mechanical behavior of modified clays, (4) ...

Hydraulic conductivity and leachate removal rate of genetically different compacted clays

Genetically different clays were compacted, contaminated and cured for 21 days with natural leachate from an old active waste disposal site and subsequently remolded at both West Africa (WA) and Modified AASHTO (MA) energies of compaction. The clays were thereafter investigated with a view to understanding the effect of contamination on hydraulic conductivity and mineralogy of the ...

Recent advances in physical modeling and remote sensing of civil infrastructure systems

Natural and man-made hazards are often associated with costly damages to civil infrastructure systems, such as buildings, bridges, Levees, dams, pipelines and offshore structures of all types. The lack of high-quality field and lab data of soil system response have eluded researchers and practitioners until recently. Recent advancements in physical modeling facilities (centrifuge ...

Rheological behavior of cold recycled asphalt materials with different contents of recycled asphalt pavements

In Québec, for more than 20 years, cold in-place recycling (CIR) and full-depth reclamation (FDR) have been reliable rehabilitation techniques; restoring pavement condition at an affordable cost with a lower footprint on the environment. Experience reveals that CIR and FDR interventions effectively address the issues of reflective cracking and respect Québec’s Ministry of ...

Problems and solutions for GCLs used in waste containment facilities: temperature concerns and polymer treatment related to GCLs used in waste containment areas

In this study, first, various geosynthetic clay liner (GCL) application areas were briefly defined and afterwards, the details of GCL usage in mine applications were given. GCLs are barrier materials that are preferred in mining facilities such as heap leach pads, tailing dams or waste landfills. In these applications, GCLs might be in contact with aggressive leachates that could ...

Applications of sustainable post-tensioned concrete slabs

Post-tensioning is used for the last decades for different concrete elements such as slabs, beams, walls and mat foundations. For industrial and office buildings with large spans, application of post-tensioned, (PT), concrete floors is competitive to reinforced concrete. Use of PT slabs results in small sections, better serviceability, durable structures and faster construction ...

Seismic isolation of buildings using devices based on sliding between surfaces with variable friction coefficient

Base isolators are effective tools that favor a high level of building performance under lateral load, providing protection to both structural and non-structural elements. In this context, this paper discusses the possibility of employing materials with different frictional properties to enhance the response of flat- and curved-surface base isolators. Two innovative devices, ...

Challenges due to problematic soils: a case study at the crossroads of geotechnology and sustainable pavement solutions

Geotechnical characteristics of subsoils should be adequately incorporated in the rehabilitation strategies of existing pavements which have performed poorly due to problematic subsurface conditions. However, there appears to be a disconnect between the advances in our understanding of the mechanics of soft or problematic soils and the rehabilitation design of the overlying ...

Effects of different stress regimes on hydraulic fracture geometry: a particle flow code approach

Hydraulic fracturing decisions are closely tied to quantitative description of rock mechanical properties and in situ stresses in the subsurface. Geomechanics plays a critical role in successfully optimizing hydraulic fracturing, especially in different stress regimes. For those stress regimes that are not normal, the hydraulic fracture geometry is usually more complex and more ...

Development of rubberized asphalt binder specification

The use of ground rubber from scrap tires has long been supported by environmental and government agencies to reduce the disposal problem associated with waste tires. In 2008, Louisiana turned to the use of crumb rubber in asphalt mixtures to address a shortage in polymer-modified asphalt binder. As a result, the state developed new specifications for rubberized asphalt binder, ...

Transferring innovative research into practical wisdom: the case of permeation grouting

For decades, permeation grouting has been used as a cost-effective low disturbance ground improvement technology that allowed geotechnical engineers to help strengthening the soils and provide proper control of water flow. While permeation grouting can be a very useful solution, the design of an appropriate grouting program can be the difference between a successful job and an ...

A material which started a new era in geotechnical engineering: geosynthetics

In this paper, the opportunities that can be provided by using geosynthetics are introduced. Many examples mentioned in the text show explicitly that geosynthetics can provide effective engineering solutions for a variety of projects ranging from extremely important to very simple projects. In order to illustrate the benefits of the geosynthetics, two applications were chosen as ...

Getting high-quality samples in ‘sensitive’ soils for advanced laboratory tests

Laboratory tests are well recognized as highly appropriate for defining the engineering properties of geomaterials, in terms of constitutive law parameters for modeling geotechnical engineering problems. The strong development of advanced techniques, both in equipment and in data interpretation, has increased the confidence in laboratory testing, while on the other hand the ...

The first William Selim Hanna honor lecture from failure to success: lessons from geotechnical failures

An engineering failure may be defined as an unforeseen, substandard, performance of an engineered element. It can materialize in the forms of a catastrophic incident or just as a slight functional shortcoming. Failures are not all evil despite our natural aversion to encounter them. In fact, they are both our greatest enemy and, ironically, our foremost educator. Our ancestors who ...

Load–settlement response of shallow foundations resting on granular soil

Proper estimation of settlement of shallow foundations resting on granular soil deposits has a significant role in the design and construction of buildings and other related structures. While several procedures are available in the literature, discrepancies still exist between the predicted and observed responses. Furthermore, there is a decoupling between bearing capacity and ...

Distributed analysis of interacting soil and structural systems under dynamic loading

Accurate, verifiable, and efficient analytical models for interacting soil and structure systems are still very challenging. While geotechnical software usually has limited capacity for structural analysis in the inelastic response range, the converse is true for structural analysis packages. In this paper, a multi-platform analytical approach is developed and verified. The ...

Some aspects of research and practice for pile design in France

This paper summarises some aspects of the methods used in France for designing pile foundations under axial and transverse loadings. These methods mostly use the results of Ménard pressuremeter (MPM) tests and concern the determination of the bearing capacity, as well as the prediction of axial and transverse displacements. The prediction of the bearing capacity from CPT results is ...