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Articles 61 - 90 of 2055
Full-Text Articles in Engineering
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
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 …
Simulation Of Inorganic And Organic Contaminants Transport In Sanitary Landfills, R. P. Singh
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 …
Soil Property Improvement Using Slag Binder, Gennadii Boldyrev, Ilya Idrisov
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. …
Stabilization Of Contaminated Soil By Dicalcium Phosphate, Amin Falamaki, Hossein Tavallali, Sharbanoo Rezanejad Farahmand
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 …
The Investigation Of Salinity Effects On Behavioral Parameters Of Fine-Grained Soils, Hadiseh Mansouri, Rassoul Ajalloeian, Amir Hossein Sadeghpour
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 …
The Use Of High Strength Geosynthetics In Deep Soil Mixed Levee Foundations, Brian C. Baillie
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 …
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
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 …
Use Of Porous Concrete And Scoria Bases To Clean Groundwater Recharge, Kevin T. Harker, James Mahar
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 …
Wsasw Application For Soil Dynamic Properties In Soft Soil Investigation At Kelang, Malaysia, Sri Atmaja P. Rosyidi
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 …
Ground Engineering For The Autoroute 30 Ppp Project, Montréal Canada, Chris Barker, Alan Phear, Romeo Ciubotariu, Robert Talby, Paul Quigley, Richard Deakin, Andrew Cushing
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 …
Predicting Ground Subsidence Induced By Pumping Combining Space Measurements And Geotechnical Modeling: Application In The Thessaly Region, Greece, C. Stamatopoulos, P. Petridis, L. Balla, I. Parharidis, M. Foumelis, D. Fountoulis, Ch. Lalehos, Metaxas
Predicting Ground Subsidence Induced By Pumping Combining Space Measurements And Geotechnical Modeling: Application In The Thessaly Region, Greece, C. Stamatopoulos, P. Petridis, L. Balla, I. Parharidis, M. Foumelis, D. Fountoulis, Ch. Lalehos, Metaxas
International Conference on Case Histories in Geotechnical Engineering
Space technology is a new technology that provides cost-effective measurements of past displacement data. Based on these displacement measurements, within the framework of the European Space Agency’s GMES Terrafirma Project, an improved geotechnical design approach is proposed combining geotechnical modelling and space measurements to predict ground subsidence induced by the lowering of the water table. Then the proposed methodology is applied to predict future displacement at the Thessaly plain - Carla region, Greece due to excessive pumping.
Seismic Refraction Data And Dangerous Phenomena’S In By-Pass Vlora Road, Luljeta Bozo, Skender Allkja
Seismic Refraction Data And Dangerous Phenomena’S In By-Pass Vlora Road, Luljeta Bozo, Skender Allkja
International Conference on Case Histories in Geotechnical Engineering
The touristic zone of Vlora has a very beautiful nature where there is a marvelous combination of the sea, hills and mountains. This zone has different pollutions, one of them is acoustic and gazes pollution from means of transport. With intention to reduce this pollution and to secure a commodity, rapid and sure circulation of the means of transport to the touristic jonian seaside area was decided the construction of the Vlora By-pass road. The new road passes in hills and field terrain. In one part of the new road we have made a combination geological-geophysical and geotechnical study, with …
Prediction Of Landslides Using Surface Wave Analysis Incorporating With Gis: A Case Study In Selangor, Malaysia, Zamri Chik, S. M. Taohidul Islam
Prediction Of Landslides Using Surface Wave Analysis Incorporating With Gis: A Case Study In Selangor, Malaysia, Zamri Chik, S. M. Taohidul Islam
International Conference on Case Histories in Geotechnical Engineering
Sites Bukit Antarabangsa, Selangor and at Universiti Kebangsaan Malaysia, Selangor were investigated using Multichannel Analysis of Surface Wave (MASW) method. Surface wave method is incorporated with Geographic Information System (GIS) to investigate the hazardous zone for landslides that allows online data to obtain near surface soil profiles. Low frequency seismic signals are used to get 2-D tomography profiles of surface soil near landslides. It is possible to identify landslide risks, if geological and geotechnical properties of soil are known. The effects of different man-made factors for landslides are characteristic properties of soil, slope geometry, road construction etc. The results of …
Deep Excavation In An Urban Area: A Case Study, Mohammad Sharif Rajabi, Farzin Kalantary
Deep Excavation In An Urban Area: A Case Study, Mohammad Sharif Rajabi, Farzin Kalantary
International Conference on Case Histories in Geotechnical Engineering
Due to regulations requiring provision of car park in the typical multi-story buildings in the urban areas and the high cost of land, deep excavation adjacent to existing structures have become common-place in Iran. Limiting lateral as well as vertical displacement of the adjacent structures has proven to be a major geotechnical challenge especially in the coarse grained alluvium of Tehran where determination of geotechnical parameters is tedious. Often active temporary support methods such as "rigid pad – anchoring" and/or "anchored soldier piles" are used in combination with nailing. However, arriving at the optimum design for such projects for the …
Effects Of Arching On Measurement Of Embedded Pressure Cell In Embankment Dam, Dorsa Elmi, Ali Asghar Mirghasemi
Effects Of Arching On Measurement Of Embedded Pressure Cell In Embankment Dam, Dorsa Elmi, Ali Asghar Mirghasemi
International Conference on Case Histories in Geotechnical Engineering
Field observation and monitoring earth structures is vital to design the structure safely and efficiently. Among different types of instruments, earth pressure cells (EPCs) are used to measure soil pressure in embankment dams, which are not proved to be entirely satisfactory. Presence of cells and installation methods usually affect the accuracy of total stress measurements. Since earth pressure cells are prone to damage by large and sharp stones or by using heavy compaction rollers, one excavates a trench and place EPC within fine grained soil which is compacted with light-weight machines. This nonconformity results in local arching between the installation …
Relook At Foundation Design Of Re Structures In Indian Environment Based On Case Study, Ravin M. Tailor, Jigisha M. Vashi, Mahesh D. Desai
Relook At Foundation Design Of Re Structures In Indian Environment Based On Case Study, Ravin M. Tailor, Jigisha M. Vashi, Mahesh D. Desai
International Conference on Case Histories in Geotechnical Engineering
India has massive infrastructure development plan in next decade. The safety, cost optimization saving construction time is challenges to engineers. The mass communication progress of 11th & 12th five year plans involves design and execution of large number of underpasses/flyovers through out country. The problems faced by adoption of foundation practice in India based on interpretation of BS 8006 / 1995 during execution are analyzed. Though not widely publicized, failures of walls or part of facial block wall are reported. To avoid contract schedules quick remedial measures are adopted, which based on consultants and facilities includes stone columns, lime piles, …
Rebuild Of Us 27, Don W. Dotson, Christopher J. Ramsey
Rebuild Of Us 27, Don W. Dotson, Christopher J. Ramsey
International Conference on Case Histories in Geotechnical Engineering
An existing four lane section of US 27 was widened to eight lanes. The project lies in the rugged Valley and Ridge Province of the Appalachian mountains starting at the Tennessee River in Chattanooga, Tennessee and extending 2.6 km north to Signal Mountain Boulevard. This terrain presented many challenges to accommodate the road widening in the narrow, rugged topography. Multiple tiered wall systems consisting of large tieback walls, post-tensioned reaction blocks, and gravity MSE walls for a total of approximately 30 retaining walls were required. The retaining walls served to stabilize the thrust faulted geology while also minimizing right-of-way acquisitions. …
Wolf Creek Dam: Instrumentation & Monitoring, Georgette Hlepas, W. G. Walker
Wolf Creek Dam: Instrumentation & Monitoring, Georgette Hlepas, W. G. Walker
International Conference on Case Histories in Geotechnical Engineering
Wolf Creek Dam was designed and constructed between 1932 and 1952. The approximate 1 mile long combination concrete gravity and earth fill structure is located on the Cumberland River near Jamestown, KY and stores up to six million ac-ft at the maximum flood pool storage level. In 1967-1968, seepage in the foundation of the embankment section was evidenced by sinkholes and muddy flows identified on the downstream side of the dam and Instruments identified seepage through the dam foundation. A concrete barrier wall was constructed in 1975-1979, however dam monitoring in 2004 indicated that seepage persisted through the foundation. Currently, …
General Report – Session 1, Sanjeev Kumar, Devendra Narain Singh, Prabir K. Kolay
General Report – Session 1, Sanjeev Kumar, Devendra Narain Singh, Prabir K. Kolay
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
General Report – Session 2, Kenneth Gavin, Min-Keong Chung, Jose Clemente
General Report – Session 2, Kenneth Gavin, Min-Keong Chung, Jose Clemente
International Conference on Case Histories in Geotechnical Engineering
The complete title of Session two on case histories of unexpected behavior of foundations made reference to unusual soils, diverse environments, a wide range of foundation test methods and structures ranging from historic monuments to tall buildings and towers. In attempting to provide a narrative to the myriad papers submitted which match the session themes we must consider whether unanticipated foundation behavior can ever be described as unexpected. In every project Geotechnical Engineers are charged with predicting the response of structures composed of or built on naturally heterogeneous material. The process (which is not linear) consists of many stages including …
General Report - Session 4, Jorge F. Meneses, Robert Kayen
General Report - Session 4, Jorge F. Meneses, Robert Kayen
International Conference on Case Histories in Geotechnical Engineering
This General Report presents a summary of the 22 papers accepted for the Session 4 focused on Case Histories on Failure and Remediation of Geotechnical Earthquake Engineering, including landslides and Lessons from Recent Earthquakes, and Case Histories on Engineering Vibrations, Vibration Control for Underground and Surface Constructions, with Specific Emphasis on the Urban Environment; Predictions, Monitoring and Solutions; Blasting for Tunnels in Soft Ground and Rock, Discontinuous Rocks and their Application to Water Resources Projects, and Remediation. The papers originate from twelve countries and cover significant topics and projects in the area of geotechnical earthquake engineering, and engineering vibration. These …
General Report - Session 6, Krishna R. Reddy, Scott Anderson, K. S. Beena, Joel G. Burken, James R. Gingery, Chavdar Kolev, Sri Atmaja P. Rosyidi, Yasunori Yano
General Report - Session 6, Krishna R. Reddy, Scott Anderson, K. S. Beena, Joel G. Burken, James R. Gingery, Chavdar Kolev, Sri Atmaja P. Rosyidi, Yasunori Yano
International Conference on Case Histories in Geotechnical Engineering
This general report provides a summary of 40 accepted papers submitted to sessions 6a on ground improvement methods and session 6b on geoenvironmental engineering. The papers are contributed by the researchers and professionals from the United States and 15 other countries and they cover a wide range of topics based on laboratory experiments, field design, construction and monitoring, and mathematical modeling. A brief summary of each paper is provided under organized sections and the reader is referred to consult the full paper for details. Finally, the topics for discussion are listed.
General Report - Session 7, Scott Newhouse, Cholachat Rujikiatkamjorn, Gary F. Goodheart, Ahijit Sheth, Philip Robins
General Report - Session 7, Scott Newhouse, Cholachat Rujikiatkamjorn, Gary F. Goodheart, Ahijit Sheth, Philip Robins
International Conference on Case Histories in Geotechnical Engineering
The authors have prepared this General Report for Conference Session 7. Session 7 includes two divisions with themes in transportation projects, and the use of instrumentation and monitoring methods, as described below in the introduction. The authors reviewed a total of 16 papers from 10 countries. The General Report includes a summary table of all of the submitted papers, and individual summaries of each.
General Report - Session 8, Dhirendra S. (Sax) Saxena, Ram D. Singh, Rutuparna Joshi, Prashanth Vaddu
General Report - Session 8, Dhirendra S. (Sax) Saxena, Ram D. Singh, Rutuparna Joshi, Prashanth Vaddu
International Conference on Case Histories in Geotechnical Engineering
This General Report presents a summary of the eleven (11) papers accepted for the session 8 focused on Case History of Forensic-Geotechnical Engineering and Case Histories on Health Monitoring and Retrofit of Infrastructure. The session includes discussion of Reliability of Codes; Risk Analysis Pertaining to Public Structures, Non-Destructive Evaluation and Load Testing of Drilled Shafts, Auger Cast Piles and Driven Piles, and Damage Evaluation; Advance Information, Systems in the Geotechnical Risk Predication and Assessment. The papers originate from eight countries and cover an array of important topics in the area of forensic and geotechnical engineering. These include case histories; geotechnical-forensic …
Keynote Address, W. D. Liam Finn, Guoxi Wu
Keynote Address, W. D. Liam Finn, Guoxi Wu
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Dedication, Shamsher Prakash
Dedication, Shamsher Prakash
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Meet Our Authors, Multiple Authors
Meet Our Authors, Multiple Authors
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Lindsay Lomax Bagnall, Lindsay Lomax Bagnall
Lindsay Lomax Bagnall, Lindsay Lomax Bagnall
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Osp-1: Boominathan Adimoolam, Boominathan Adimoolam
Osp-1: Boominathan Adimoolam, Boominathan Adimoolam
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Cnb-1: Tony A. Kiefer, P.E., Tony A. Kiefer
Cnb-1: Tony A. Kiefer, P.E., Tony A. Kiefer
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.