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2013

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Articles 571 - 600 of 1513

Full-Text Articles in Civil and Environmental Engineering

Tied-Back Wall Failure, Boston, Ma, Theodore Von Rosenvinge Iv Apr 2013

Tied-Back Wall Failure, Boston, Ma, Theodore Von Rosenvinge Iv

International Conference on Case Histories in Geotechnical Engineering

Excavation for Boston’s Central Artery project included one of the most interesting temporary excavation support system failures in recent history (1993). The wall moved much more than predicted at a depth of 41 feet, approximately 2/3 of the final 60 foot excavation depth. Jet grouting was used to stabilize the bottom of the excavation before proceeding to the full depth. The excavation support system provided space for a cut and cover section of Interstate I-90’s Third Harbor Tunnel approach to Logan Airport. The permanent structure is a concrete box section of the tunnel. The excavation system consisted of a tied-back …

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Phytoforensics: Soil And Groundwater Sampling Without Soil Or Groundwater!, Joel G. Burken, Kendra M. Waltermire Apr 2013

Phytoforensics: Soil And Groundwater Sampling Without Soil Or Groundwater!, Joel G. Burken, Kendra M. Waltermire

International Conference on Case Histories in Geotechnical Engineering

Plants directly interact with surrounding water, air, and soil, collecting and storing chemicals and elements from the surrounding environment. Tree coring methods have shown that groundwater contamination can be assessed without directly sampling the groundwater. In this work, two new and innovative sampling methods that place sampling devices inside the plant, i.e. “in-planta”, were developed to access this valuable data that can direct and perhaps replace traditional methods for contaminated-site investigations. Traditional site assessments may be limited due to time, site access, and expense, resulting in incomplete understanding of the contaminated plumes and inefficient remedial approaches. The new techniques presented …

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Structural Damage Of A 5-Storey Building: Differential Settlement Due To Construction Of An Adjacent Building Or Because Of Construction Defects?, Ioannis Anastasopoulos Apr 2013

Structural Damage Of A 5-Storey Building: Differential Settlement Due To Construction Of An Adjacent Building Or Because Of Construction Defects?, Ioannis Anastasopoulos

International Conference on Case Histories in Geotechnical Engineering

The paper presents a case history of a 5-storey RC building in Athens (Greece), seriously damaged due to differential settlement. Built in 1968, the damaged structure is founded on spread footings, lying on very soft clayey soil. For more than 30 years, no damage had been observed. In 1999, construction of an adjacent 5-storey RC building begun, and shear cracks started appearing. Inclined at 45o, the cracks implied damage due to differential settlement. The owners of the damaged building filed a law suit, claiming that the damage was due to additional loading by the under-construction adjacent building. Measurements conducted in …

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Natural Hazard Preparedness And Mitigation In India, T. N. Gupta Apr 2013

Natural Hazard Preparedness And Mitigation In India, T. N. Gupta

International Conference on Case Histories in Geotechnical Engineering

Indian sub-continent is highly vulnerable to geological and hydro-meteorological hazards. Occurrences of hazard events like earthquakes, cyclones, floods, landslides have, more than often turned into disasters of varying severity with devastating impact on development process destroying human lives, property, livelihoods and social fabric. Efficient management of disasters, rather than mere response to their occurrence, has in recent decades, received an increasing attention of the national planners leading to the formulation of Disaster Management Act in 2005 by Government of India. The national policy enshrined in the Act marked a paradigm shift from the erstwhile post-disaster relief-centric approach to pro-active approach …

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Improvement Of Dynamic Soil Properties Induced By Preloading Verified By A Field Test And Embankment Failure, K. Stamatopoulos, P. Petridis, P. S. Allkja, G. Vatselas, A. Small Apr 2013

Improvement Of Dynamic Soil Properties Induced By Preloading Verified By A Field Test And Embankment Failure, K. Stamatopoulos, P. Petridis, P. S. Allkja, G. Vatselas, A. Small

International Conference on Case Histories in Geotechnical Engineering

The results of an elaborate field preloading study on a liquefaction-susceptible site are presented. Preloading was applied by a temporary embankment 9m high. Prior and after preloading, borings with standard penetration tests, cone penetration tests and geophysical studies were performed. During the process of embankment construction and demolition, settlements, excess pore pressures and vertical and horizontal stresses were recorded versus time at different locations. A partial embankment failure occurred during the preloading process. A method predicting failure during the construction of the preload embankment based on excess pore pressure measurements is proposed and verified.

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A Comprehensive Model For Anaerobic Degradation In Bio-Reactor Landfills, Jay N. Meegoda, S. Bhuvaneshwari, P. A. Hettiaratchi, H. Hettiarachchi Apr 2013

A Comprehensive Model For Anaerobic Degradation In Bio-Reactor Landfills, Jay N. Meegoda, S. Bhuvaneshwari, P. A. Hettiaratchi, H. Hettiarachchi

International Conference on Case Histories in Geotechnical Engineering

A new generation of sustainable landfill was designed and constructed in the City of Calgary, Canada to achieve sustainable municipal solid waste (MSW) management. This sustainable landfill called “biocell” involves sequential operation of a landfill cell to produce methane gas during the first stage of anaerobic degradation and in-situ composting within the cell footprint. Once methane recovery is minimal, the second stage aerobic degradation initiated by injecting air through methane recovery system and finally landfill is mined for resource and space recovery in the third stage. The resources that can be recovered include compost like material and recyclables such as …

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An Assessment Of Soil Collapsibility Due Dissolution Of Salts, Omar Alhattamleh Apr 2013

An Assessment Of Soil Collapsibility Due Dissolution Of Salts, Omar Alhattamleh

International Conference on Case Histories in Geotechnical Engineering

Since the building of first dike in the Dead Sea (DS) 60 years ago, the DS harsh environment sparks new geotechnical challenges. The DS level as well as the surrounding ground water table continued to drop severely. The DS level drops 35 m from 392 mbsl in late 1950s to around 423 mbsl in 2011. Recently, the rate of descending is 1.2 m/year and is on brink to increase. The dramatically dropping of the DS level pushes fresh water brackish water divide and generates numerous sink holes in the southern part of the east coast of the DS. The thing …

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Application Of Nanomaterial To Stabilize A Weak Soil, Seyedi Gelsefidi Seyed Alireza, Mirkazemi Seyed Mohammad, Baziar Mohammad Hasan Apr 2013

Application Of Nanomaterial To Stabilize A Weak Soil, Seyedi Gelsefidi Seyed Alireza, Mirkazemi Seyed Mohammad, Baziar Mohammad Hasan

International Conference on Case Histories in Geotechnical Engineering

There are little investigations in the literature on the nanotechnology's application in the geothecnical field. Since, lots of soil and rock minerals are nanomaterial and their chemical reactions are in the nano-scale, there is a great potential for the use of this technology in different fields of geothecnical engineering such as seepage, grouting, soil stabilization and etc. In this study the stabilization of a weak soil was investigated using nanomaterial. The weak soil was obtained from Boodian Road in North of Iran and classified as low plasticity clay. Fifty CBR tests were conducted in this study. At the first step …

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Arsenic Contamination Of Groundwater At The Middle Basin Of Ganges In India, Yasunori Yano, Kenichi Ito, Hiroshi Yokota, Koichiro Shiomori, Shigeki Tomomatsu, Mitsuhiro Sezaki Apr 2013

Arsenic Contamination Of Groundwater At The Middle Basin Of Ganges In India, Yasunori Yano, Kenichi Ito, Hiroshi Yokota, Koichiro Shiomori, Shigeki Tomomatsu, Mitsuhiro Sezaki

International Conference on Case Histories in Geotechnical Engineering

This paper shows the situation and mechanism of arsenic contamination of groundwater at the worst contaminated areas in UP (Uttar Pradesh) state, India, which is obtained from the integrated arsenic mitigation project by University of Miyazaki under the Japan International Cooperation Agency (JICA) Partnership Program (JPP). The project has been executed from 2008 until now. The integrated mitigation, such as the raising awareness of villager, installing of alternative water supply units and healthcare of arsenocosis patients, have been executed at the 2 villages. The symptom of the arsenocosis patients was not so severe, which will be, therefore, improved by drinking …

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Case Studies On Application Of Coir Geotextiles For Soil Stabilization, K. S. Beena Apr 2013

Case Studies On Application Of Coir Geotextiles For Soil Stabilization, K. S. Beena

International Conference on Case Histories in Geotechnical Engineering

Coir geotextiles (Coir Bhoovastra) is one of the non-traditional highly demanded and promising coir product with multi usages as eco-friendly, sustainable and substitutable product for many Civil Engineering applications especially in Geotechnical Engineering. Coir Geo-textiles is an emerging area of coir industry. Kerala, the major coir producing state in India is fast growing in the development and application of Coir Geotextile. Coir Geotextile development program is also intended to popularize the coir products as geotextile material in National & International level and to provide internationally accepted standardization for coir geotextile. The use of Coir geotextile is well established in areas …

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Closure And Post-Closure Redevelopment Of The Mccoll Superfund Site, Edward Kavazanjian Jr. Apr 2013

Closure And Post-Closure Redevelopment Of The Mccoll Superfund Site, Edward Kavazanjian Jr.

International Conference on Case Histories in Geotechnical Engineering

The McColl Superfund site was one of the highest-profile hazardous waste sites in the USA in the 1980’s. The 12 unlined pits containing refinery waste from World War II presented unique challenges for closure construction and post-closure redevelopment due the caustic nature, low bearing capacity, and high odor potential of the waste, the proximity of residences, and a mandate to restore portions of a golf course over several of the pits. Closure design included special testing to demonstrate the durability of materials that could potentially come in contact with the waste and to evaluate the potential for migration of waste …

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Compaction Grouting For Seismic Retrofit Of The North Torrey Pines Bridge, James R. Gingery, Sunil Arora Apr 2013

Compaction Grouting For Seismic Retrofit Of The North Torrey Pines Bridge, James R. Gingery, Sunil Arora

International Conference on Case Histories in Geotechnical Engineering

The North Torrey Pines Road Bridge in Del Mar, California was built in 1933 and is eligible for listing in the National Register of Historic Places. As a result of its outdated design and deterioration in a corrosive saline environment, the bridge was classified as structurally and seismically deficient and functionally obsolete. The historic significance of this bridge is important to the surrounding community and thus a seismic retrofit project was initiated with the goal of improving the expected seismic performance of the bridge while preserving its aesthetic and historic character. This paper provides a brief description of the overall …

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Dynamic Compaction In Loose Granular Deposits; A Comparison Between Results From Conventional And Recent Improvement Methods, Apostolos V. Kozompolis, Panos Vettas, George Chlimintzas Apr 2013

Dynamic Compaction In Loose Granular Deposits; A Comparison Between Results From Conventional And Recent Improvement Methods, Apostolos V. Kozompolis, Panos Vettas, George Chlimintzas

International Conference on Case Histories in Geotechnical Engineering

This study presents the results of dynamic compaction in loose, saturated granular deposits. The dynamic compaction operations were conducted by (a) the conventional method of Falling Weight Treatment (a.k.a. Deep Dynamic Compaction - DDC) and (b) the more recent Rapid Impact Compaction (RIC) method. The results of either soil improvement method are being presented, normalized and compared side by side in regards to the resulting soil improvement characteristics as well as the degree of efficiency with varying depth and location. Last, but not least, the improved mean soil compressibility parameters are validated through an embankment surcharge test.

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Dynamic Properties Of Stabilized Subgrade Clay Soil, Argaw Asha Ashango, Nihar Ranjan Patra Apr 2013

Dynamic Properties Of Stabilized Subgrade Clay Soil, Argaw Asha Ashango, Nihar Ranjan Patra

International Conference on Case Histories in Geotechnical Engineering

Expansive soils are fine-grained soils that can undergo a significant volume change due to the variation of water content. A change in the water content of weak subgrade material under the roadway is a cause for the damage of the road pavement. During an earthquake, the soft clay will lose the small shear strength it possesses which causes cracks and movements of the road. In the present study, soil samples were collected from Banda, Uttar Pradesh, India. The study area is at risk for seismic damage due to Himalayan frontal fault earthquakes. The soils samples are highly expansive in nature …

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Ground Improvement And Settlement Monitoring Program For A Power Plant Project, John J. W. Lee, Ravee Raveendra, Curt Basnett, Yoga Chandran, Robert Howard, Roy Snover Apr 2013

Ground Improvement And Settlement Monitoring Program For A Power Plant Project, John J. W. Lee, Ravee Raveendra, Curt Basnett, Yoga Chandran, Robert Howard, Roy Snover

International Conference on Case Histories in Geotechnical Engineering

CH2M HILL is providing engineering, procurement, and construction services for a power plant project in Utah. Before beginning construction on the power plant, geotechnical studies were performed to characterize the subsurface conditions for the anticipated settlement and to determine a ground improvement method to accelerate the construction period. Ground improvement with wick drains and surcharge fill placement was carried out to improve the soft soil conditions at the project site. Settlement monitoring instrumentations were installed before placing structural fill and surcharge fill. An extensive settlement monitoring program was also implemented inside and around the perimeter of the project site to …

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Innovative Ground Improvement For Liquefaction Control Near Charleston, South Carolina, Brian Metcalfe, Kord Wissmann, Kenneth Zur Apr 2013

Innovative Ground Improvement For Liquefaction Control Near Charleston, South Carolina, Brian Metcalfe, Kord Wissmann, Kenneth Zur

International Conference on Case Histories in Geotechnical Engineering

Liquefaction remediation solutions often encompass high prevailing costs particularly in heterogeneous soil profiles. Common liquefaction control measures consist of deep foundations, soil mixing, and stone columns. Rammed Aggregate Pier methods have been used in the past two decades to support structures in cohesive and cohesionless soil profiles and control foundation settlements to building tolerances. These methods have recently been adapted to treat liquefiable soil profiles by improving the soil through densification, drainage, and shear stress redistribution. This paper focuses on a case history on Daniel Island, SC where a new variation of RAP methods, called the Rammed Compaction Point™ (RCP) …

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Investigation On Geosynthetic Reinforced Two Layered Soil System, P. B. Ullagaddi, T. K. Nagaraj Apr 2013

Investigation On Geosynthetic Reinforced Two Layered Soil System, P. B. Ullagaddi, T. K. Nagaraj

International Conference on Case Histories in Geotechnical Engineering

Use of geosynthetics for flexible pavements founded on expansive soil subgrade is one of feasible and economic solution to minimize the undulation and required pavement thickness. In this present investigation the effect of inclusion of the geosynthetic reinforcement on California Bearing Ratio (CBR) value of a two layered soil system with black cotton soil at bottom and granular soil at top as a buffer layer, with different thickness configuration and geotextiles of different physical and mechanical properties was studied by laboratory and field California bearing ratio tests. Thickness of flexible pavement over the two layer soil system of different thickness …

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Offshore Stone Columns Under Embankment With Embedded Pipes, Mohab Sabry, Mohamed A. Mostafa Apr 2013

Offshore Stone Columns Under Embankment With Embedded Pipes, Mohab Sabry, Mohamed A. Mostafa

International Conference on Case Histories in Geotechnical Engineering

A breakwater embankment was constructed as part of a settling basin for the intake of a thermal power plant in the north of Egypt. The 440-m long breakwater surrounds the intake basin which has an area of about 18000 m2. Sea water is supplied to the intake basin through 50 concrete pipes embedded in the breakwater. Subsurface soil conditions in the area indicated that the embankment would be founded on soft silty clay underlain by a layer of silty sand. Results from the settlement analysis showed that the embedded pipes could not tolerate the predicted differential settlement in …

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Reducing Static Settlement Potential Using Prefabricated Wick Drains – A Case History, Judd J. King Apr 2013

Reducing Static Settlement Potential Using Prefabricated Wick Drains – A Case History, Judd J. King

International Conference on Case Histories in Geotechnical Engineering

Soft fine-grained soils subjected to heavy loads, such as those imposed by rigid structures or fill, have a high potential to consolidate over time. Depending upon subsurface conditions, soil consolidation can take many years to occur. This consolidation results in settlement, and subsequent differential settlement of the ground surface, which can have damaging consequences to structures. To reduce the potential for damage to structures due to consolidation settlement, various solutions have been devised by geoprofessionals. Such solutions include pile foundations, rigid mat/raft foundations, chemical stabilization, and over-excavation/replacement. Another method is the use of prefabricated wick drains in combination with a …

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Selection Activity Optimization For A Geotextile-Ash System From Filtration Function Point Of View, Raluca Ioana Chirică, Liviu Tit Taloş Apr 2013

Selection Activity Optimization For A Geotextile-Ash System From Filtration Function Point Of View, Raluca Ioana Chirică, Liviu Tit Taloş

International Conference on Case Histories in Geotechnical Engineering

The paper presents a complex study concerning the fly ash deposits. It is known that the fly ash is an industrial by-product which is stored in landfills, with important implications on the environment. On this line, the general stability problem under different hydraulic and mechanical conditions was studied. Experimental and numerical analysis results are presented. The paper is about a fly ash embankment protected against erosion with different geotextile types. In order to obtain the main parameters of this compatibility problem, before performing a numerical analysis, some laboratory tests were undertaken. Conclusions were drawn regarding the optimum geotextile-fly ash filtration …

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Settlement Of Large Embankment Construction Adjacent To A Buried Gas Pipeline — A Case History In Settlement Mitigation Using Lightweight Fill, Bret N. Lingwall, Scott Anderson Apr 2013

Settlement Of Large Embankment Construction Adjacent To A Buried Gas Pipeline — A Case History In Settlement Mitigation Using Lightweight Fill, Bret N. Lingwall, Scott Anderson

International Conference on Case Histories in Geotechnical Engineering

As part of the $1.7 Billion I-15 CORE highway reconstruction project in Utah, several new or enlarged large embankments were constructed adjacent to existing buried utilities. Lightweight fill was selected as the technology to limit distress to the adjacent utilities. In order to estimate the impact from new construction to the utilities, settlement estimates for the lightweight embankment were performed using traditional settlement estimating techniques. Numerical models using FLAC3D were then performed to refined estimates. Estimates of lightweight embankment foundation settlements from this construction were obtained from the finite difference modeling. Three-dimensional numerical modeling was used in order to evaluate …

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Simulation Of Inorganic And Organic Contaminants Transport In Sanitary Landfills, R. P. Singh Apr 2013

Simulation Of Inorganic And Organic Contaminants Transport In Sanitary Landfills, R. P. Singh

International Conference on Case Histories in Geotechnical Engineering

The modelling of leachate generation and transport is important for estimating the possible groundwater pollution below the sanitary landfills. The numerical solution of the mathematical models for the total solids (inorganic) and chemical oxygen demand (organic) transport is presented. The existing one dimensional leachate transport model which accounts for advection and diffusion is modified with the addition of desorption term and the simulation results are compared for different case studies from the literature. The maximum error is reduced to 28.24 % with modified inorganic model against 38.93 % with the existing model for the TS concentration when simulated with literature …

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Soil Property Improvement Using Slag Binder, Gennadii Boldyrev, Ilya Idrisov Apr 2013

Soil Property Improvement Using Slag Binder, Gennadii Boldyrev, Ilya Idrisov

International Conference on Case Histories in Geotechnical Engineering

In the majority of cases this is cement, which is used for soil improvement both for sandy soils and clays in order to increase its strength and reduce its compressibility. However this effect could be reached by using lime or in some cases slag binder for soil improvement. Comparing with cement and lime blast furnace slag used for improvement of soft clays prove more effective. Soils can be improved by means of wet soil mixing or dry soil mixing. The result is that we get a new composite material and its strength is much higher when comparing with natural soils. …

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Stabilization Of Contaminated Soil By Dicalcium Phosphate, Amin Falamaki, Hossein Tavallali, Sharbanoo Rezanejad Farahmand Apr 2013

Stabilization Of Contaminated Soil By Dicalcium Phosphate, Amin Falamaki, Hossein Tavallali, Sharbanoo Rezanejad Farahmand

International Conference on Case Histories in Geotechnical Engineering

Stabilization of heavy metals contaminated soils using phosphate amendments is relatively a simple, quick and cheap method to reduce the transport of contaminants in the environment. The objective of this study is to stabilize the polluted soil using dicalcum phosphate (DCP). In this study a series of leachate column tests were conducted to find out the effect of DCP on Pb and Cu polluted soil. In addition, to understand the concentration of DCP on the efficiency of the method, different samples with different polluted soils were tested. DCP with 0.1, 0.2 and 0.5 mg/kg dry soil were added to the …

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The Investigation Of Salinity Effects On Behavioral Parameters Of Fine-Grained Soils, Hadiseh Mansouri, Rassoul Ajalloeian, Amir Hossein Sadeghpour Apr 2013

The Investigation Of Salinity Effects On Behavioral Parameters Of Fine-Grained Soils, Hadiseh Mansouri, Rassoul Ajalloeian, Amir Hossein Sadeghpour

International Conference on Case Histories in Geotechnical Engineering

The present paper aims at investigating the effect of water salinity on engineering properties of fine-grain soil. Saline water used in this study was obtained from half saline water of Ajichay River (with TDS more than 1877 ppm) and saline branch of Korchay (with TDS more than 97000 ppm) located in Northwestern of Iran. Fine-grain soil studied is from Korchay dam core. Due to the high hardness of water in this river, the feasibility of using saline water as the water required in clay core of the dam process has been studied in this research. The experiments were performed including …

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The Use Of High Strength Geosynthetics In Deep Soil Mixed Levee Foundations, Brian C. Baillie Apr 2013

The Use Of High Strength Geosynthetics In Deep Soil Mixed Levee Foundations, Brian C. Baillie

International Conference on Case Histories in Geotechnical Engineering

The construction and design of flood protection embankment levees within coastal areas has become a focal point for infrastructure management. The levees are usually constructed over soils with very poor bearing capacity due to their proximity to flood plains. The foundation soils create issues with long-term settlement, changing the protection height and creating the need to periodically build the levee back to the design height. In order to reduce settlements and the maintenance required to preserve design height protection, a deep foundation is needed for proper long term load transfer. Deep soil mixing (DSM) has become a popular deep foundation …

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Treating The Expansive Soil Subgrade On The Goaf Of Middle-Shallow Layer By Dynamic Compaction With Geogrid Reinforcement, Yang He-Ping, Zhang Bin, Yin Jin-Tao, Zhang Jin Apr 2013

Treating The Expansive Soil Subgrade On The Goaf Of Middle-Shallow Layer By Dynamic Compaction With Geogrid Reinforcement, Yang He-Ping, Zhang Bin, Yin Jin-Tao, Zhang Jin

International Conference on Case Histories in Geotechnical Engineering

Middle-shallow layer goaf left after the excavation of small coal mines in expansive soil areas always brings much trouble to expressway construction, the section of K21 +400~K22 +550 of Nanning outer ring expressway under construction faces such a situation. Based on the grasp of geological condition of the goaf, related national technical specifications and existing technical research about treatment, the dynamic compaction with geogird reinforcement method is applied to settle the roadbed with a good result showed in the field testing. This paper introduces the geological condition and stability evaluation of the goaf, and emphatically presents the technical note, construction …

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Use Of Porous Concrete And Scoria Bases To Clean Groundwater Recharge, Kevin T. Harker, James Mahar Apr 2013

Use Of Porous Concrete And Scoria Bases To Clean Groundwater Recharge, Kevin T. Harker, James Mahar

International Conference on Case Histories in Geotechnical Engineering

The City of Pocatello, Idaho does not currently treat its storm water, but rather collects runoff in detention basins or discharges it into the Portneuf River. Nitrates from fertilizers and petroleum products enter local waterways and ultimately groundwater supplies. Porous concrete is regarded as a green product and has storm water filtering capabilities. Idaho State University (ISU) has been studying the use of scoria (vesicular basalt) to retain petroleum contaminants which migrate through porous concrete collection systems placed on driving surfaces. At present, ISU is conducting laboratory experiments using a physical model consisting of a porous concrete slab made with …

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Wsasw Application For Soil Dynamic Properties In Soft Soil Investigation At Kelang, Malaysia, Sri Atmaja P. Rosyidi Apr 2013

Wsasw Application For Soil Dynamic Properties In Soft Soil Investigation At Kelang, Malaysia, Sri Atmaja P. Rosyidi

International Conference on Case Histories in Geotechnical Engineering

In seismic wave measurements, soil dynamic parameters, i.e., shear wave velocity and shear modulus are determined from a dispersion curve of phase velocity with employing the theory of elasticity of soils. In this paper, a developed technique from Spectral Analysis of Surface Waves (SASW), namely as the Wavelet Spectrogram Analysis of Surface Waves (WSASW) is introduced for measurement of the soil dynamic properties at soft marine clay soils sites. This technique has capability to localize the interested response spectrum of surface waves, to reconstructed spectrograms of noisy seismic waves and produces the enhanced phase data to develop the phase velocity …

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Ground Engineering For The Autoroute 30 Ppp Project, Montréal Canada, Chris Barker, Alan Phear, Romeo Ciubotariu, Robert Talby, Paul Quigley, Richard Deakin, Andrew Cushing Apr 2013

Ground Engineering For The Autoroute 30 Ppp Project, Montréal Canada, Chris Barker, Alan Phear, Romeo Ciubotariu, Robert Talby, Paul Quigley, Richard Deakin, Andrew Cushing

International Conference on Case Histories in Geotechnical Engineering

At CAD $1.54B, the Nouvelle Autoroute 30 project is the largest and second Public Private Partnership (PPP) transportation project procured in the province of Québec, Canada. It will operate as a tolled two-lane 42km divided highway with 31 bridges including two major bridge crossings of the St Lawrence River and Beauharnois Canal and a short tunnel. The project is located approximately 30km south-west from downtown Montréal and will relieve traffic congestion on Montréal Island by providing the final section of an alternative southern bypass route. The project is located in a seismic cold climate region and is underlain by deep …

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