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2004

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Articles 1231 - 1260 of 2785

Full-Text Articles in Engineering

The New Resolution Of Foundations In Durres City, Luljeta Bozo Apr 2004

The New Resolution Of Foundations In Durres City, Luljeta Bozo

International Conference on Case Histories in Geotechnical Engineering

Albania is a country with strong earthquakes. There are observed some disastrous earthquakes in the cities of Durres, Vlora and Shkodra. Recently in the city of Durres are built many high – rise buildings in the low or bad soil-conditions. In this paper, we would like to present our experience in the calculation and constructions of foundations in this area with high seismic.

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Nonlinear Dynamic Behavior Of Pile Groups: Effects Of Plasticity Of Soil, B. K. Maheshwari, Kevin Z. Truman Apr 2004

Nonlinear Dynamic Behavior Of Pile Groups: Effects Of Plasticity Of Soil, B. K. Maheshwari, Kevin Z. Truman

International Conference on Case Histories in Geotechnical Engineering

The effects of material nonlinearity of soil on dynamic behavior of a single pile and pile groups are investigated. An advanced plasticity based soil model, HiSS, is incorporated in the finite element formulation. To simulate radiation effects, proper boundary conditions are used. The model and algorithm are verified with analytical results that are available for elastic and elasto-plastic soil models. Analyses are performed for seismic excitation as well as for loads applied on the pile cap and the effect of nonlinearity is investigated. Effects of spacing between piles are investigated. It was found that the effect of soil nonlinearity on …

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Liquefaction Susceptibility: Proposed New York City Building Code Revision, Robert Alperstein, Carl Costantino, Peter Edinger, Michael Greenman, Magued Iskander, Stephen K. Law, Sam Leifer, George Mylonakis, Sissy Nikolaou, Ray Sandiford, Thomas Thomann Apr 2004

Liquefaction Susceptibility: Proposed New York City Building Code Revision, Robert Alperstein, Carl Costantino, Peter Edinger, Michael Greenman, Magued Iskander, Stephen K. Law, Sam Leifer, George Mylonakis, Sissy Nikolaou, Ray Sandiford, Thomas Thomann

International Conference on Case Histories in Geotechnical Engineering

A simplified procedure is presented for evaluating liquefaction susceptibility of cohesionless saturated soils based on available technology. In 2001, a Committee of engineers working in the New York City (NYC) area was formed under the direction of the first Author, to review the liquefaction aspects of the 1995 New York City Building Code. The purpose was to gain consensus on a possible revision and augmentation of the exisiting regulations as part of the ongoing Code review by the Structural Engineers Association of New York (SEAoNY). This article summarizes the recommendations of the Committee, as compiled in 2002. The following topics …

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Displacement Of Bridge Abutment Under Earthquake Loading, Yulman Munaf, Shamsher Prakash Apr 2004

Displacement Of Bridge Abutment Under Earthquake Loading, Yulman Munaf, Shamsher Prakash

International Conference on Case Histories in Geotechnical Engineering

Bridge abutments may experience significant displacements during earthquakes. A two-dimensional model has been developed considering sliding and overturning displacement and 1) strain dependent soil stiffness and soil damping and 2) horizontal and vertical time dependent seismic load. The displacements are computed from the static equilibrium position where the seismic backfill force increments are considered for determining the active earth force acting behind the abutment wall. This means that the permanent displacement increment occurred if the acceleration acts towards the backfill and the abutment wall moves away from the backfill. The total displacement at the top of bridge abutment is calculated …

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Experimental And Numerical Studies On Ground Vibration Isolation By Pc Wall-Pile Barrier, Yasuyuki Nabeshima, Kiyoshi Hayakawa, Yukihiko Kani Apr 2004

Experimental And Numerical Studies On Ground Vibration Isolation By Pc Wall-Pile Barrier, Yasuyuki Nabeshima, Kiyoshi Hayakawa, Yukihiko Kani

International Conference on Case Histories in Geotechnical Engineering

PC wall-pile barrier was known to be effective to isolate ground vibration from traffic vibration sources. Filed measurement on the traffic vibration isolation by PC wall-pile barrier from a elevated road in the Higashi-Meihan Highway was performed, and field model experiments were also conducted to identify the effectiveness of PC wall-pile barrier. Factors affecting on the performance of ground vibration isolation barrier were understood from the field model experiments. Numerical analyses on both field measurement and field model experiment were carried out to identify the effectiveness of such barrier and they could quantitatively simulate and evaluate the effectiveness of PC …

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The Reflection Of Quasi Waves At Free Boundary Of A Fibre-Reinforced Medium, A. Chattopadhyay, R. L. K. Venkateswarlu, S. Saha Apr 2004

The Reflection Of Quasi Waves At Free Boundary Of A Fibre-Reinforced Medium, A. Chattopadhyay, R. L. K. Venkateswarlu, S. Saha

International Conference on Case Histories in Geotechnical Engineering

The propagation of plane waves in fibre-reinforced medium is discussed. The expressions of phase velocity of quasi-P (qP) and quasi-SV (qSV) waves propagating in plane symmetry are obtained in terms of propagation vector. We have established a relation from which displacement vector can be obtained in terms of propagation vector. The expressions for the reflection coefficients of qP and qSV waves are obtained. Numerical results of reflection coefficients are obtained and presented graphically. The partition of energy between qP and qSV waves reflected on a free boundary due to incident qP and qSV waves are also obtained and presented graphically.

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Stabilizing Building Foundations Threatened By The Pine Hills, Florida Sinkhole, Gary L. Kuhns, Mark C. Canty Apr 2004

Stabilizing Building Foundations Threatened By The Pine Hills, Florida Sinkhole, Gary L. Kuhns, Mark C. Canty

International Conference on Case Histories in Geotechnical Engineering

On June 11, 2002, a 150-foot wide and 60-foot deep sinkhole collapsed in Pine Hills, near Orlando, Florida. The Pine Hills Sinkhole was the largest sinkhole to occur in Central Florida in the past 20 years. The collapse swallowed approximately 10,000 cubic yards of earth, sidewalks, light fixtures, a sanitary sewer and several large oak trees in less than 2 hours. The rim of the sinkhole came within a few feet of the shallow foundations of 2 three-story apartment buildings. Observation and subsequent geotechnical analysis showed that the sinkhole slope supporting the buildings was subject to imminent failure, and if …

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Conditions Of Structural Stability And Vibration Damage, Arinos Xavier Tavares Apr 2004

Conditions Of Structural Stability And Vibration Damage, Arinos Xavier Tavares

International Conference on Case Histories in Geotechnical Engineering

The paper presents the investigation conducted in a one-story-house and its rear annex which suffered severe damages due to a process of differential settlements of their foundations, flowing water in the subsoil and vibrations of the traffic of vehicles on the street nearby. The house is located in the city of Curitiba in the south of Brazil. The subsoil is composed of tropical clay and sand silty soils of Guabirotuba Formation. It is formed of pleistocene sediments in Curitiba area. The foundations of the house and the annex were in excavated small 8” diameter short concrete piles. Due to the …

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On-Line Response Tests On Case History Of Earthquake Induced Deformation Of River Dykes Founded On Saturated Sandy Deposits, Masayuki Hyodo, Teruhisa Fujii, Norimasa Yoshimoto, Naoki Takahashi, Adrian F. L. Hyde Apr 2004

On-Line Response Tests On Case History Of Earthquake Induced Deformation Of River Dykes Founded On Saturated Sandy Deposits, Masayuki Hyodo, Teruhisa Fujii, Norimasa Yoshimoto, Naoki Takahashi, Adrian F. L. Hyde

International Conference on Case Histories in Geotechnical Engineering

River dykes and road embankments are frequently damaged during earthquakes. The liquefaction of foundation, the behavior of which is not yet well realized, is considered to be the main cause of the damage. Based on the results of past studies, the foundation of an embankment was divided into three zones to examine the failure modes. One-dimensional on-line earthquake tests, which were conducted by a combination of element tests and computer earthquake response analyses, were performed for such zones of actual river dykes damaged during earthquake. The cumulative horizontal displacement values obtained by the tests were compared with the measured embankment-crest …

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Foundation System For “ Akshardham” To Control Deformations Related To Probable Liquefaction, Mahesh D. Desai, Pranav L. Desai, Nehal H. Desai Apr 2004

Foundation System For “ Akshardham” To Control Deformations Related To Probable Liquefaction, Mahesh D. Desai, Pranav L. Desai, Nehal H. Desai

International Conference on Case Histories in Geotechnical Engineering

The paper presents a system of foundation for 38.0 m high monumental unique structure “ Akhsardham” on bank of “Yamuna” river at Noida ,New Delhi(India). The design is outcome of interaction of ideological requirements of Architects, Seismologist, Geotechnical and Structural engineers, as well as those empirical rules of Vastu- Shastra for religious places. The structure is typical flexible stone monument. It is located on alluvium of “Yamuna” river in seismic Zone IV of Bureau of Indian standards. The preliminary exploration report indicated liquefaction potential and suggested deep foundations. The engineering priests decided against use of steel for the structure expected …

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Prototype Piling In Soft Clay — A Case Study Of Ground Vibrations: Field Measurement, T. S. Thandavamoorthy, C. K. Madheswaran Apr 2004

Prototype Piling In Soft Clay — A Case Study Of Ground Vibrations: Field Measurement, T. S. Thandavamoorthy, C. K. Madheswaran

International Conference on Case Histories in Geotechnical Engineering

Ground vibrations are generated either by natural phenomena or by human activities. Among the natural phenomena, earthquake is the principal source of ground vibrations of most interest. Ground vibrations generated by human activities are called manmade vibrations and these vary greatly in intensity depending on the particular source of vibration. The seismic waves associated with man-made vibrations propagate in the ground and inevitably interact with structures that are above-ground or underground. This interaction induces vibrations in the structure and, in extreme cases, affect its serviceability and integrity seriously. Still, there is no method to quantify the levels of piling vibration. …

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Soil Improvement Of Soft Soil Under Dynamic And Static Loading — Case History Of A Geotechnical Field Experiment Under A Railway Line, Rolf Katzenbach, Marc Ittershagen Apr 2004

Soil Improvement Of Soft Soil Under Dynamic And Static Loading — Case History Of A Geotechnical Field Experiment Under A Railway Line, Rolf Katzenbach, Marc Ittershagen

International Conference on Case Histories in Geotechnical Engineering

To get informations about the deformation and bearing behaviour of a soil improvement by the use of Lime-Cement Columns under a railway line on soft soil large scale field tests were performed. The tests were observed by various static and dynamic measurement devices and over a period of 3 months 1200 train crossings were recorded. During the test stage the train speed varies from 30 km/h to 90 km/h to analyse the influence of the train speed on the dynamic behaviour and the stabilizing effect of the soil improvement. The measurements show that the large and heavy goods trains are …

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Pile Driving Vibration Energy-Attenuation Relationships In The Charleston, South Carolina Area, Edward L. Hajduk, Donovan L. Ledford, William B. Wright Apr 2004

Pile Driving Vibration Energy-Attenuation Relationships In The Charleston, South Carolina Area, Edward L. Hajduk, Donovan L. Ledford, William B. Wright

International Conference on Case Histories in Geotechnical Engineering

Vibrations generated by driven pile installation often affect adjacent and surrounding buildings in tightly spaced urban environments. These vibrations can lead to complaints from neighboring residents and businesses and/or cause structural damage to adjacent structures, especially older and historic buildings. Pile driving vibrations are of particular interest in the Charleston, South Carolina area since the majority of new structures are founded on driven pile foundations bearing within the underlying Cooper Marl Formation. By knowing the vibration attenuation relationship of a project area (i.e. the decrease in vibration amplitude with distance), it is possible to develop pile installation plans that minimize …

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Field Investigation On Ground And Structural Vibrations During Prototype Pile Driving, C. K. Madheswaran, T. S. Thandavamoorthy Apr 2004

Field Investigation On Ground And Structural Vibrations During Prototype Pile Driving, C. K. Madheswaran, T. S. Thandavamoorthy

International Conference on Case Histories in Geotechnical Engineering

As the land is very precious in urban areas and coastal regions, many structures are built in close proximity. When the soil is weak and heavy loads are to be carried, pile foundation is adopted for such structures. The impact caused by pile driving is a potential hazard to neighbourhood structures. Berthing structures are constructed using piles and the effect of pile driving on already installed adjacent piles is important. To predict the effect of pile driving on neighbourhood piles, measurement of ground and structural vibrations during prototype pile driving was carried out at a site in the city of …

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Landslide Mitigation On The Sonoma Coast In Northern California, Mahmood Momenzadeh, Grant Wilcox, Hooshmand Nikoui, Tim Pokrywka Apr 2004

Landslide Mitigation On The Sonoma Coast In Northern California, Mahmood Momenzadeh, Grant Wilcox, Hooshmand Nikoui, Tim Pokrywka

International Conference on Case Histories in Geotechnical Engineering

Heavy rains in late December 2001 and January 2002 caused approximately 100 meters of roadway to settle approximately 0.5 meters within a week along Highway 1 on the Sonoma County Coast (Post Mile 30.3). This area has a complex landslide history involving two active landslides. These landslides coalesce on a narrow section of Highway 1 approximately 130 meters above the Pacific Ocean. A tieback wall, sheet piles and a lightweight fill embankment had previously been constructed at this location to try to stabilize and maintain the roadway. The subsurface material at the site is composed of a matrix of very …

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Failure Of A Rigidly Framed Concrete Parking Structure Due To Thermally Induced Earth Pressure, Walid Aboumoussa, Magued Iskander Apr 2004

Failure Of A Rigidly Framed Concrete Parking Structure Due To Thermally Induced Earth Pressure, Walid Aboumoussa, Magued Iskander

International Conference on Case Histories in Geotechnical Engineering

An instrumentation program was undertaken to monitor the movements of a multi-story underground parking-structure exhibiting signs of large deformation and severe structural distress including the failure of a column. The structure is a four-story reinforced concrete building with a rectangular footprint measuring 52.42 m by 71.32 m. The building’s structural system consists of reinforced concrete waffle slabs supported by rectangular reinforced-concrete columns. The instrumentation plan included the installation of eight vibrating-wire displacement transducers to monitor displacements, and twenty-four electrolytic tiltmeters to monitor inclinations. The instrument data was recorded hourly and read via a remote site modem connected to a datalogger …

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Two Case Histories Of Blast- & Traffic-Induced Vibrations On The Stability Of Burrows Of Endangered Sensitive Ground Dwelling Animals, John A. Barneich, Jay Arabshshi, Steven K. Duke Apr 2004

Two Case Histories Of Blast- & Traffic-Induced Vibrations On The Stability Of Burrows Of Endangered Sensitive Ground Dwelling Animals, John A. Barneich, Jay Arabshshi, Steven K. Duke

International Conference on Case Histories in Geotechnical Engineering

Two case histories are presented where jurisdictional authorities expressed a concern regarding the impact of blast and construction traffic induced vibrations on the stability of the burrows of endangered ground dwelling species. The first case history involved the use of explosives proposed to be used for a seismic survey in the vicinity of desert tortoise burrows. The concern was that the use of explosives in the vicinity of a tortoise burrow could cause the collapse of an occupied burrow potentially trapping the tortoise within the burrow. Field tests were performed by constructing artificial tortoise burrows and inducing progressively higher vibration …

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Monitoring An Excavation In An Urban Area, Emilio Bilotta, Massimo Ramondini, Carlo Viggiani Apr 2004

Monitoring An Excavation In An Urban Area, Emilio Bilotta, Massimo Ramondini, Carlo Viggiani

International Conference on Case Histories in Geotechnical Engineering

A new building recently constructed in the centre of the city of Salerno, Italy, comprises a two level underground park with a maximum depth of 8 m below the ground surface and around 5 m below the ground water table. The excavation was carried out within a cast in situ reinforced concrete diaphragm wall, with a thickness of 0.6 m and a length of 18 m. The subsoil profile consists essentially of sand and gravel, with horizontal layers of silt and silty sand. The main silty layer, located near the toe of the diaphragm, appears to be continuous over the …

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Mse Walls In Distress: Repair Them Or Rebuild Them?, Greg Paxson, Allen Cadden, Rich Wargo, Jesús Gómez Apr 2004

Mse Walls In Distress: Repair Them Or Rebuild Them?, Greg Paxson, Allen Cadden, Rich Wargo, Jesús Gómez

International Conference on Case Histories in Geotechnical Engineering

MSE walls are widely used in site development, primarily due to their low cost when compared with conventional retaining structures; however, the costs to repair or reconstruct a poorly performing wall likely outweigh these initial savings. This paper includes a summary of three MSE walls that have experienced either a complete failure (collapse) or have undergone significant movement, adversely affecting wall performance. In each case history, the likely cause of failure and the solution for rehabilitation of the structures are presented, along with the approximate cost of repair. Several projects in which other methods of stabilization were used are also …

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Behaviour Of A Watertight Anchored Retaining Wall In Soft Soil Conditions, Mustafa S. Nalçakan, Maral Tekin, Gökçe Tönük, Ufuk Ergun Apr 2004

Behaviour Of A Watertight Anchored Retaining Wall In Soft Soil Conditions, Mustafa S. Nalçakan, Maral Tekin, Gökçe Tönük, Ufuk Ergun

International Conference on Case Histories in Geotechnical Engineering

A watertight prestressed anchored retaining wall was used in an excavation in Marmaris, a town located on the Southwest coast of Turkey due to presence of high water level and soft soil conditions. Following a detailed geotechnical investigation an analysis of the retaining system was performed by Plaxis Finite Element Program. The analysis consisted of stage construction simulating the real case. The behaviour of the watertight pile wall was monitored by means of inclinometric measurements. The paper describes the overall stability problems disclosed by Plaxis finite element and Slope-W slope stability programs and their remediation and the problems encountered during …

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The Application Of Jet Grouting In Shanghai Foundation Pit Projects, Jia-Lin Wang, Ji-Wang Wang Apr 2004

The Application Of Jet Grouting In Shanghai Foundation Pit Projects, Jia-Lin Wang, Ji-Wang Wang

International Conference on Case Histories in Geotechnical Engineering

Jet grouting in Shanghai can date back to late 1970s but was seldom applied in constructive projects. It was not until the construction of Metro in Shanghai in 1980s that jet grouting became widely accepted. Now it has been successfully applied in the constructions of two subway lines and basic constructions of some buildings nearby. A lot of experience has been accumulated through practice in terms of suitable conditions and situations. First, it can reduce deformation caused by excavation. When the system of braced framing in a certain geological condition cannot meet the demand of deforming control and bracing path …

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One Lincoln Street Arched Slurry Wall, George Aristorenas, Minhaj Kirmani Apr 2004

One Lincoln Street Arched Slurry Wall, George Aristorenas, Minhaj Kirmani

International Conference on Case Histories in Geotechnical Engineering

One Lincoln Street is one of the most recent buildings constructed in downtown Boston. Its structure consists of a 36-story high-rise building directly connected to a 7-story low-rise building. Its substructure has five levels of underground parking garage to accommodate 900 cars in a city where prime real estate is becoming scarce. The excavation for the underground parking garage was supported by reinforced concrete slurry walls, which also serve as the substructure’s permanent walls. The stiffness of the slurry walls, together with the strut and tieback bracing system, minimized movement during excavation, which occurred in close proximity to existing buildings. …

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Geotechnical And Environmental Consideration By Planning And Construction Of The Transportation Infrastructure In The Centre Of Berlin, Stavros A. Savidis, Frank Rackwitz Apr 2004

Geotechnical And Environmental Consideration By Planning And Construction Of The Transportation Infrastructure In The Centre Of Berlin, Stavros A. Savidis, Frank Rackwitz

International Conference on Case Histories in Geotechnical Engineering

Since the mid of the nineties in the City of Berlin there have been built underground installations, i.e. railway and street tunnels as well as foundations deep embedded in the groundwater, with some extraordinary measures. The surface area of all tunnel constructions of the VZBProject (inner city traffic tunnels in Berlin) amounts to approx. 240,000 square meters. The excavation pits for the tunnel structures have depths of more than 20 meters and widths of more than 100 meters. All this projects lead in the mid nineties to the characterization of the City of Berlin as Europe`s biggest construction site. A …

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Failure Of An Excavation Support System, S. J. Boone, J. Westland Apr 2004

Failure Of An Excavation Support System, S. J. Boone, J. Westland

International Conference on Case Histories in Geotechnical Engineering

The design, construction, and collapse of an excavation support system constructed through layered soils are presented in this paper. The braced soldier-pile and lagging shoring was installed through soft clay, with the base of the excavation in hard glacial deposits. Complicating factors included the use of soil berms for temporary support, construction sequencing, weather conditions, and the location of the failed section near a re-entrant corner of the shoring system. Rapid responses of all contract parties and careful evaluation of the failure causes limited subsequent safety and damage concerns, and no claims were made. Post-failure examination of the preceding events …

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Deep Excavation Braced By Diaphragm Wall In Gdańsk (Poland), G. A. Horodecki, A. F. Bolt, E. Dembicki Apr 2004

Deep Excavation Braced By Diaphragm Wall In Gdańsk (Poland), G. A. Horodecki, A. F. Bolt, E. Dembicki

International Conference on Case Histories in Geotechnical Engineering

Protection of deep excavation by cast in situ concrete diaphragm walls for Shopping Center in Gdansk (Poland) is described. The structure was designed as five-storey-building with three additional underground floors and founded on diaphragm walls. The excavation was made by “half-floor” method with temporary supports of floor in the form of steel columns. Static calculations of excavation bracing were carried out by PLAXIS numerical code for both design stage (for two calculation schemes: anchored and supported by floor ring) as well as after its construction (back analysis). The calculations served for an assessment of predicted wall displacements, deformations of soil …

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History Of Passive Pressure Of Non-Cohesive Mass And Its Consequences For Theory Of Earth Pressure, Petr Koudelka, Tomáš Koudelka Apr 2004

History Of Passive Pressure Of Non-Cohesive Mass And Its Consequences For Theory Of Earth Pressure, Petr Koudelka, Tomáš Koudelka

International Conference on Case Histories in Geotechnical Engineering

Recently, the long-term research of passive pressure has been carried out. The rotation about the toe of the physical model sized 3.0*1.0*1.2 m has brought unexpected results similarly as the previous research of active pressure. The research contains among others the investigation of time stability of both pressure components, i.e. normal component and shear component. The paper presents latest information about physical modelling and its results and compares the results with the concept of the developed the General Lateral Pressure Theory (GLPT). This theory is supported also by the monitored time instability of lateral pressure, which is discussed as well. …

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Jacking Pits In Boston’S Central Artery Project, Arturo Ressi Di Cervia Apr 2004

Jacking Pits In Boston’S Central Artery Project, Arturo Ressi Di Cervia

International Conference on Case Histories in Geotechnical Engineering

The jacking of the largest concrete tunnels ever built in the United States required the construction of jacking pits of unusual dimensions and requirements. The location of the pits posed the additional challenge of difficult ground conditions, since the bottom of the pits was in the Boston blue clay. The pits had to have an unsupported span of over 40 feet to accommodate the dimensions of the tunnel, have a solid base to carry the weight of the sections being built and provide lateral resistance to the thrust of the jacks. Treviicos met those challenges by constructing a four feet …

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Analysis Of Tunnel Section Enlargement Through Cutting Masonry Liner (Paris-Marseilles Roches De Condrieu Railway Tunnel Case Study), Verya Nasri, Christian Winum, Aomar Benslimane Apr 2004

Analysis Of Tunnel Section Enlargement Through Cutting Masonry Liner (Paris-Marseilles Roches De Condrieu Railway Tunnel Case Study), Verya Nasri, Christian Winum, Aomar Benslimane

International Conference on Case Histories in Geotechnical Engineering

With increase in the dynamic envelope of trains due to the increase of their cross section and speed, the need for widening tunnel cross section of existing tunnels is becoming a necessity. One of the solutions to this problem consists of cutting a fraction of the masonry liner thickness and replacing it with a higher strength, and therefore, a thinner material. In this paper, the case of the widening of the Roches de Condrieu tunnel on the Paris to Marseilles railway line is presented. A maximum of half of the thickness of the existing masonry liner should be removed somewhere …

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Monitoring Lateral Deflections Of A Berthing Structure During Dredging — A Case Study, K. Muthukkumaran, R. Sundaravadivelu, S. R. Gandhi Apr 2004

Monitoring Lateral Deflections Of A Berthing Structure During Dredging — A Case Study, K. Muthukkumaran, R. Sundaravadivelu, S. R. Gandhi

International Conference on Case Histories in Geotechnical Engineering

For one of the major ports in India, a shallow water berth is recently constructed comprising of a diaphragm wall and pile rows to support the deck structure. The soil strata are essentially very soft clay extending to a large depth. Reclaiming land behind this structure created number of problems including mud flow. The structure was constructed after placement of fill required for reclamation. After completion of the structure, when dredging work was undertaken, it was decided to monitor the lateral movements of berths, as the dredging depth increases. For this purpose inclinometer tubes were installed in one of the …

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Analysis Of The Invert Damage And Its Rehabilitation Design. The Saint Louis Les Aygalades Tunnel Case Study, Verya Nasri, Christian Winum Apr 2004

Analysis Of The Invert Damage And Its Rehabilitation Design. The Saint Louis Les Aygalades Tunnel Case Study, Verya Nasri, Christian Winum

International Conference on Case Histories in Geotechnical Engineering

The combined effect of time with the non-homogenous mechanical and hydraulic behaviors of the various intermediate layers between the foundation soil and the tracks often result in undesired deformation and misalignment of the tracks, which can compromise performance of the railway tunnel. The tunnel of Saint-Louis les Aygalades is located on the Paris Marseille mainline. This 476 m long tunnel was built in 1847, from the two portals and two intermediate shafts, under a maximum cover of 35 m in the tertiary formation of Stampien. The section of the tunnel consists of an elliptical vault with large vertical axis resting …

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