Closure And Post-Closure Redevelopment Of The Mccoll Superfund Site,
2013
Arizona State University, Tempe, AZ
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 …
Correlation Between VS And Rqd For Different Rock Types,
2013
Bechtel Power Corporation, Frederick, MD
Correlation Between VS And Rqd For Different Rock Types, Emre Biringen, John Davie
International Conference on Case Histories in Geotechnical Engineering
Although there is no direct relationship between the shear wave velocity (VS) of in-situ rock and Rock Quality Designation (RQD), it is apparent that some relationship exists since both VS and RQD decrease in fractured and weathered rock. However, unweathered or unfractured soft rock will have comparatively low VS compared with unweathered or unfractured hard rock since VS is a function of rock hardness and density. Thus, any relationship between VS and RQD will be specific to a particular rock type, and, in many cases, to a particular area/region where the hardness and density …
Design And Construction Of Compaction Grouting For Foundation Soil Improvements,
2013
GeoEngineers, Inc., Redmond, WA
Design And Construction Of Compaction Grouting For Foundation Soil Improvements, King H. Chin, Heidi P. Disla, Bob Cote
International Conference on Case Histories in Geotechnical Engineering
This paper presents the design and construction of compaction grouting work completed for a tank replacement project in Portland, Oregon. The project site is located along the west bank of the Willamette River. The subsurface soils at the project site were determined to be highly susceptible to soil liquefaction and lateral spreading under a design earthquake event per the building code. Compaction grouting was designed and constructed to strengthen the foundation soils supporting the new steel tank that is 115 feet in diameter and 40 feet in height. The design of the compaction grouting was completed using the design guidelines …
Dynamic Compaction In Loose Granular Deposits; A Comparison Between Results From Conventional And Recent Improvement Methods,
2013
OTM S.A., Consulting Engineers, Greece
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.
Dynamic Properties Of Municipal Solid Waste In A Bioreactor Cell At Orchard Hills Landfill, Illinois, Usa,
2013
Northern Illinois University, DeKalb, IL
Dynamic Properties Of Municipal Solid Waste In A Bioreactor Cell At Orchard Hills Landfill, Illinois, Usa, Philip J. Carpenter, Krishna R. Reddy, Michael D. Thompson
International Conference on Case Histories in Geotechnical Engineering
Bioreactor landfills enhance municipal solid waste (MSW) degradation through recirculation of leachate inside the waste mass. In-situ monitoring of moisture distribution and changes in mechanical properties (stiffness) of MSW is needed to optimize the safe and effective operation of bioreactor landfills. Geophysical methods, such as electrical resistivity tomography, are shown to have great potential to monitor the moisture distribution. This study is aimed at investigating seismic surveys to characterize changes in dynamic properties (e.g., shear wave velocity and Poisson’s ratio) of MSW to infer the extent of degradation and provide the input needed for seismic stability evaluation. To achieve this …
Evaluation Of Strength Of Clayey Soil By Ucs Test With Addition Of Rice Husk Ash And Lime,
2013
Bengal Engineering & Science University, Shibpur, India
Evaluation Of Strength Of Clayey Soil By Ucs Test With Addition Of Rice Husk Ash And Lime, Tapash Kumar Roy
International Conference on Case Histories in Geotechnical Engineering
The present study investigates the benefits of using rice husk ash (RHA) with clayey soil as the subgrade material in flexible pavements with addition of small amount of lime. Four ratios of RHA of 5%, 10%, 15% and 20% mixed with the clayey soil by weight of soil sample. Further for getting the better performance, lime has been added in this study in the varying proportions from 1% to 3% by weight of soil. The compaction characteristics and unconfined compressive strength tests were conducted on these different mixed soils. The test results shows that the rice husk ash can be …
Ground Improvement For Redevelopment Of Former Landfill,
2013
Soil and Materials Engineers, Inc., Plymouth, MI
Ground Improvement For Redevelopment Of Former Landfill, Larry P. Jedele, Brandon Buschmeier
International Conference on Case Histories in Geotechnical Engineering
A former industrial landfill site was selected for the design and construction of a large industrial building. Due to the soil and groundwater conditions along with potential environmental impacts discussed in this paper, support of the building using shallow spread foundations or conventional deep foundations, such as driven or cast-in-place piles or drilled piers were not considered to be reasonable foundation support alternatives. Therefore, ground improvement was deemed the best alternative to support the building, floor slabs and machine foundations for the project, although timber piles with a structural slab were also considered. Controlled modulus columns and rammed aggregate piers …
Impacts Of Drain Water On Soils And Crops And It Causes: A Case Study Of Kamber Taluka, Pakistan,
2013
Shah Abdul Latif University Khairpur, Pakistan
Impacts Of Drain Water On Soils And Crops And It Causes: A Case Study Of Kamber Taluka, Pakistan, Noor Hussain
International Conference on Case Histories in Geotechnical Engineering
Taluka Kamber has been the receiving of natural calamities turned disasters due to its geographical location. The area is in constant threat of the surface drainage effluent coming from Balochistan Plateaus and Local drains. The toxic and highly contaminated water from different drains has devastating and impact on the natural lakes and agricultural lands of the region. The natural flow routes of the flood water have been interrupted at many places which have increased the impact and frequency of the floods in the area. The investigated area is very famous for the paddy and wheat production in the country, but …
Innovative Ground Improvement For Liquefaction Control Near Charleston, South Carolina,
2013
Geopier Foundation Company, Davidson, NC
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) …
Reducing Static Settlement Potential Using Prefabricated Wick Drains – A Case History,
2013
Earth Systems Pacific, San Luis Obispo, CA
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 …
Response Of Piles Under A Combination Of Axial Static Loads And Lateral Harmonic Vibrations,
2013
University of Politecnico di Milano, Italy
Response Of Piles Under A Combination Of Axial Static Loads And Lateral Harmonic Vibrations, Ahmad Dehghanpoor
International Conference on Case Histories in Geotechnical Engineering
This paper presents a new mathematical method for analysis of piles under a combination of static and dynamic loads. In this study has been used the SSM (segment by segment method), which is verified using existing numerical and analytical solutions, is more efficient than the equivalent numerical solutions for example finite eminent methods. This method is useable inhomogeniouse soils. The characteristic effects of surrounding soil on the pile response are determined using stiffness and damping parameters of the soil - pile system. These effects can be taken into account if a proper soil reaction is employed. The soil reaction on …
Sedimentation Behavior Of Fly Ash-Kaolinite Mixtures,
2013
Missouri University of Science and Technology
Sedimentation Behavior Of Fly Ash-Kaolinite Mixtures, Xin Kang, Xiaoyi Zhao, Bate Bate
International Conference on Case Histories in Geotechnical Engineering
The sedimentation behavior of fine grained soil is largely dependent on its pore fluid chemistry. Different ionic concentration will lead to different fabrics of soil suspension, such as dispersion, aggregation, and flocculation. The ionic concentration also influences the thickness of the Diffuse Double Layer (DDL), which leads to the change in the final sediment volumes. Besides the ionic concentration influence, adding different amount of fly ash (FA) can also cause different sedimentation behaviors. The objective of this research was to quantify the interaction between fly ash and fine grained soils by comparing the influence of ionic concentration with that of …
Seismic Bearing Capacity Of Strip Footing Resting On Reinforced Earth Bed,
2013
Inderprastha Engineering College, India
Seismic Bearing Capacity Of Strip Footing Resting On Reinforced Earth Bed, Apoorva Agarwal, Swami Saran, S. Mukerjee
International Conference on Case Histories in Geotechnical Engineering
With an increase in demand for construction the use of poor soils becomes imperative. Soil bearing capacity and settlement play an important role in the design of foundations. Seismicity of the site is another important parameter in the design of the foundation for a structure. Hence seismic bearing capacity of soil becomes an important component in the design. In weak soils often deep foundations are recommended on account of the low soil bearing capacity available. In poor soils, ground improvement techniques are commonly used to improve the soil bearing capacity. Reinforcing earth with geo synthetic is one such technique adopted …
Settlement Of Large Embankment Construction Adjacent To A Buried Gas Pipeline — A Case History In Settlement Mitigation Using Lightweight Fill,
2013
Kleinfelder, Taylorsville, UT
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 …
Soil Liquefaction Analysis Based On Geotechnical Exploration And In Situ Test Data In The Tabriz Metro Line 2,
2013
Islamic Azad University, Iran
Soil Liquefaction Analysis Based On Geotechnical Exploration And In Situ Test Data In The Tabriz Metro Line 2, Mikail Yousefzadeh Fard, Mahyar Babazadeh, Pouya Yousefzadeh
International Conference on Case Histories in Geotechnical Engineering
Liquefaction is one of the most important and complex topics in geotechnical earthquake engineering. During this phenomenon, pore water pressure increases as long as it will be equal to confining stresses. Hence, the effective confining stress becomes zero and the soil will not have any shear resistance. As a result the soil mass is unstable and causes much destruction. In this research, according to information from boreholes of Tabriz Urban Train Line 2 all required parameters including total stresses, pore water pressures and effective stresses, the results according to soil type and water depth for all 53 preliminary boreholes were …
Soil Property Improvement Using Slag Binder,
2013
Penza State University of Architecture and Construction, Russia
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. …
Study Of Extent Of Soil Improvement By Employing Vibro-Compaction Technique,
2013
TATA Consulting Engineers Ltd., India
Study Of Extent Of Soil Improvement By Employing Vibro-Compaction Technique, Tejas Belani, Shailendra Nagrikar, Deepak Raj
International Conference on Case Histories in Geotechnical Engineering
India has seen a substantial growth in various Soil Improvement Techniques over last decade. A particular technique has been chosen based on Project location, Sub soil profile, Technical requirements, Time available and allowed budget for foundation. An expansion was planned for a leading fertilizer plant in North India. Project was located in high seismic zone having PGA of 0.24g. The site was underlain by liquefiable loose fine sands up to depth of 10m to 12m. Existing plant structures were built on Stone Columns few years back. This paper presents a case study where Vibro-compaction technique was successfully used to mitigate …
The Use Of High Strength Geosynthetics In Deep Soil Mixed Levee Foundations,
2013
Huesker Inc., Austin, TX
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,
2013
The Research Institute of Special Soil Engineering, China
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 …
M74 Motorway, Glasgow – Geotechnical Aspects Of Design And Construction,
2013
Atkins Ltd., UK
M74 Motorway, Glasgow – Geotechnical Aspects Of Design And Construction, Paul Nowak
International Conference on Case Histories in Geotechnical Engineering
The 7.8 kilometre long M74 Completion project forms the final part of the motorway box around the city of Glasgow. Construction commenced in May 2008 and was completed in June 2011. The urban route corridor presented many geotechnical challenges to the design and construction teams. It is underlain by Recent, lightly over-consolidated Clyde Alluvium of maximum 35 metres thickness over Glacial Till and Carboniferous Coal Measure Sandstone bedrock. Additionally, it was the location of industries over the 19th and 20th centuries which deposited waste over the natural ground containing chromium, steel works slag and hydrocarbons. The route corridor is also …
