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Determination of Geotechnical Properties of Clayey Soil From
DETERMINATION OF GEOTECHNICAL PROPERTIES OF CLAYEY SOIL FROM RESISTIVITY IMAGING (RI) by GOLAM KIBRIA Presented to the Faculty of the Graduate School of The University of Texas at Arlington in Partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCE IN CIVIL ENGINEERING THE UNIVERSITY OF TEXAS AT ARLINGTON August 2011 Copyright © by Golam Kibria 2011 All Rights Reserved ACKNOWLEDGEMENTS I would like express my sincere gratitude to my supervising professor Dr. Sahadat Hos- sain for the accomplishment of this work. It was always motivating for me to work under his sin- cere guidance and advice. The completion of this work would not have been possible without his constant inspiration and feedback. I would also like to express my appreciation to Dr. Laureano R. Hoyos and Dr. Moham- mad Najafi for accepting to serve in my committee. I would also like to thank for their valuable time, suggestions and advice. I wish to acknowledge Dr. Harold Rowe of Earth and Environmental Science Department in the University of Texas at Arlington for giving me the opportunity to work in his laboratory. Special thanks goes to Jubair Hossain, Mohammad Sadik Khan, Tashfeena Taufiq, Huda Shihada, Shahed R Manzur, Sonia Samir,. Noor E Alam Siddique, Andrez Cruz,,Ferdous Intaj, Mostafijur Rahman and all of my friends for their cooperation and assistance throughout my Mas- ter’s study and accomplishment of this work. I wish to acknowledge the encouragement of my parents and sisters during my Master’s study. Without their constant inspiration, support and cooperation, it would not be possible to complete the work. -
Determining Carbon Stocks in Cryosols Using the Northern and Mid Latitudes Soil Database
Permafrost, Phillips, Springman & Arenson (eds) © 2003 Swets & Zeitlinger, Lisse, ISBN 90 5809 582 7 Determining carbon stocks in Cryosols using the Northern and Mid Latitudes Soil Database C. Tarnocai Agriculture and Agri-Food Canada, Ottawa, Ontario, Canada J. Kimble USDA-NRCS-NSSC, Lincoln, Nebraska, USA G. Broll Institute of Landscape Ecology, University of Muenster, Muenster, Germany ABSTRACT: The distribution of Cryosols and their carbon content and mass in the northern circumpolar area were estimated by using the Northern and Mid Latitudes Soil Database (NMLSD). Using this database, it was estimated that, in the Northern Hemisphere, Cryosols cover approximately 7769 ϫ 103 km2 and contain approxi- mately 119 Gt (surface, 0–30 cm) and 268 Gt (total, 0–100 cm) of soil organic carbon. The 268 Gt organic carbon is approximately 16% of the world’s soil organic carbon. Organic Cryosols were found to have the highest soil organic carbon mass at both depth ranges while Static Cryosols had the lowest. The accuracy of these carbon val- ues is variable and depends on the information available for the area. Since these soils contain a significant por- tion of the Earth’s soil organic carbon and will probably be the soils most affected by climate warming, new data is required so that more accurate estimates of their carbon budget can be made. 1 INTRODUCTION which is in Arc/Info format, the Soils of Northern and Mid Latitudes (Tarnocai et al. 2002a) and Northern Soils are the largest source of organic carbon in ter- Circumpolar Soils (Tarnocai et al. 2002b) maps were restrial ecosystems. -
Diagnostic Horizons
Exam III Wednesday, November 7th Study Guide Posted Tomorrow Review Session in Class on Monday the 4th Soil Taxonomy and Classification Diagnostic Horizons Epipedons Subsurface Mollic Albic Umbric Kandic Ochric Histic Argillic Melanic Spodic Plaggen Anthropic Oxic 1 Surface Horizons: Mollic- thick, dark colored, high %B.S., structure Umbric – same, but lower B.S. Ochric – pale, low O.M., thin Histic – High O.M., thick, wet, dark Sub-Surface Horizons: Argillic – illuvial accum. of clay (high activity) Kandic – accum. of clay (low activity) Spodic – Illuvial O.M. accumulation (Al and/or Fe) Oxic – highly weathered, kaolinite, Fe and Al oxides Albic – light colored, elluvial, low reactivity Elluviation and Illuviation Elluviation (E horizon) Organic matter Clays A A E E Bh horizon Bt horizon Bh Bt Spodic horizon Argillic horizon 2 Soil Taxonomy Diagnostic Epipedons Diagnostic Subsurface horizons Moisture Regimes Temperature Regimes Age Texture Depth Soil Taxonomy Soil forming processes, presence or Order Absence of major diagnostic horizons 12 Similar genesis Suborder 63 Grasslands – thick, dark Great group 250 epipedons High %B.S. Sub group 1400 Family 8000 Series 19,000 Soil Orders Entisols Histosols Inceptisols Andisols Gelisols Alfisols Mollisols Ultisols Spodosols Aridisols Vertisols Oxisols 3 Soil Orders Entisol Ent- Recent Histosol Hist- Histic (organic) Inceptisol Incept- Inception Alfisol Alf- Nonsense Ultisol Ult- Ultimate Spodosol Spod- Spodos (wood ash) Mollisol Moll- Mollis (soft) Oxisol Ox- oxide Andisol And- Ando (black) Gelisol -
Geotechnical Manual 2013 (PDF)
2013 Geotechnical Engineering Manual Geotechnical Engineering Section Minnesota Department of Transportation 12/11/13 MnDOT Geotechnical Manual ii 2013 GEOTECHNICAL ENGINEERING MANUAL ..................................................................................................... I GEOTECHNICAL ENGINEERING SECTION ............................................................................................................... I MINNESOTA DEPARTMENT OF TRANSPORTATION ............................................................................................... I 1 PURPOSE & OVERVIEW OF MANUAL ........................................................................................................ 8 1.1 PURPOSE ............................................................................................................................................................ 8 1.2 GEOTECHNICAL ENGINEERING ................................................................................................................................. 8 1.3 OVERVIEW OF THE GEOTECHNICAL SECTION .............................................................................................................. 8 1.4 MANUAL DESCRIPTION AND DEVELOPMENT .............................................................................................................. 9 2 GEOTECHNICAL PLANNING ....................................................................................................................... 11 2.1 PURPOSE, SCOPE, RESPONSIBILITY ........................................................................................................................ -
Permafrost Soils and Carbon Cycling
SOIL, 1, 147–171, 2015 www.soil-journal.net/1/147/2015/ doi:10.5194/soil-1-147-2015 SOIL © Author(s) 2015. CC Attribution 3.0 License. Permafrost soils and carbon cycling C. L. Ping1, J. D. Jastrow2, M. T. Jorgenson3, G. J. Michaelson1, and Y. L. Shur4 1Agricultural and Forestry Experiment Station, Palmer Research Center, University of Alaska Fairbanks, 1509 South Georgeson Road, Palmer, AK 99645, USA 2Biosciences Division, Argonne National Laboratory, Argonne, IL 60439, USA 3Alaska Ecoscience, Fairbanks, AK 99775, USA 4Department of Civil and Environmental Engineering, University of Alaska Fairbanks, Fairbanks, AK 99775, USA Correspondence to: C. L. Ping ([email protected]) Received: 4 October 2014 – Published in SOIL Discuss.: 30 October 2014 Revised: – – Accepted: 24 December 2014 – Published: 5 February 2015 Abstract. Knowledge of soils in the permafrost region has advanced immensely in recent decades, despite the remoteness and inaccessibility of most of the region and the sampling limitations posed by the severe environ- ment. These efforts significantly increased estimates of the amount of organic carbon stored in permafrost-region soils and improved understanding of how pedogenic processes unique to permafrost environments built enor- mous organic carbon stocks during the Quaternary. This knowledge has also called attention to the importance of permafrost-affected soils to the global carbon cycle and the potential vulnerability of the region’s soil or- ganic carbon (SOC) stocks to changing climatic conditions. In this review, we briefly introduce the permafrost characteristics, ice structures, and cryopedogenic processes that shape the development of permafrost-affected soils, and discuss their effects on soil structures and on organic matter distributions within the soil profile. -
MREI 12-01 – Geotechnical Guidelines for Sample Handling, Testing and Data Reporting
MREI 12-01 – Geotechnical Guidelines for Sample Handling, Testing and Data Reporting VTrans Materials & Research Engineering Instructions MREI 12-01 Distribution: Structures, Director PDD, Assistant Director PDD, PDD Section Managers, Chief of Contract Admin., Director Ops., Assistant Director Ops., Consultants. Approved: Date: 12-27-2012 William E. Ahearn, Materials and Research Engineer Subject: Geotechnical Guidelines to Standardize VTrans’ Sample Handling, Testing and Data Reporting Procedures Administrative Information: Effective Date: This Materials & Research Engineering Instruction (MREI) shall be considered effective from the date of approval. Superseded MREI: None Disposition of MREI Content: The content of this MREI will be incorporated into a future VTrans Soils & Foundations Engineering Manual. 1. PURPOSE: The purpose of this MREI is to standardize Geotechnical sample handling, testing and data reporting procedures performed at the Vermont Agency of Transportation, Materials & Research Laboratory. 2. TECHNICAL INFORMATION: In general, guidance outlined in Sections 9.0 and 10.0 of AASHTO Manual of Subsurface Investigations, 1988 and Section 4.12.2 of FHWA’s Geotechnical Engineering Circular No. 5, GEC No. 5 shall be followed. Any specific guidance presented in this MREI that differs from these references shall take precedence. Page 1 of 20 MREI 12-01 – Geotechnical Guidelines for Sample Handling, Testing and Data Reporting 3. OVERVIEW: Handling of geotechnical samples from field to laboratory can be critical to the integrity of the material to be tested. Proper handling methods are addressed to assure the material to be tested yields meaningful and representative data. The means of identifying and tracking materials to be tested are identified allowing for a traceable record for each sample. -
2001 01 0122.Pdf
INTERNATIONAL SOCIETY FOR SOIL MECHANICS AND GEOTECHNICAL ENGINEERING This paper was downloaded from the Online Library of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE). The library is available here: https://www.issmge.org/publications/online-library This is an open-access database that archives thousands of papers published under the Auspices of the ISSMGE and maintained by the Innovation and Development Committee of ISSMGE. Soil classification: a proposal for a structural approach, with reference to existing European and international experience Classification des sols: une proposition pour une approche structurelle, tenant compte de l’expérience Européenne et internationale lr. Gauthier Van Alboom - Geotechnics Division, Ministry of Flanders, Belgium ABSTRACT: Most soil classification schemes, used in Europe and all over the world, are of the basic type and are mainly based upon particle size distribution and Atterberg limits. Degree of harmonisation is however moderate as the classification systems are elabo rated and / or adapted for typical soils related to the country or region considered. Proposals for international standardisation have not yet resulted in ready for use practical classification tools. In this paper a proposal for structural approach to soil classification is given, and a basic soil classification system is elaborated. RESUME: La plupart des méthodes de classification des sols, en Europe et dans le monde entier, sont du type de base et font appel à la distribution des particules et aux limites Atterberg. Le degré d’harmonisation est cependant modéré, les systèmes de classification étant élaborés et / ou adaptés aux sols qui sont typiques pour le pays ou la région considérée. -
Fifth-Year Assessment of Baylor University Major Strategic Proposal
Fifth-Year Assessment of Baylor University Major Strategic Proposal (MSP) “Research Initiative in Terrestrial Paleoclimatology”: Faculty and Student Research Accomplishments, 2007, 2008, 2009, 2010, 2011, 2012 (partial) Executive Summary: The Terrestrial Paleoclimatology Research Initiative, an MSP initially funded by Baylor University beginning in 2007, that currently (October 29, 2012) consists of 6 Geology Faculty and one post-doc, has seen important growth and advancements of the initiative over the past 5 years, which are reported in detail in what follows. Especially noteworthy for this summary are the following: 1) Seven Ph.D. students (Drs. Ahr, Cleveland, Kahmann-Robinson, Mintz, Shunk, Stinchcomb, and Trendell) and two M.S. students (Bongino, Dhillon) have graduated, along with 12 B.S. Senior Thesis students. Three Ph.D. students (Jennings, Meier, and Michel) and two M.S. students (Culbertson and Felda) are anticipated to graduate in 2012-2013. There are currently 11 graduate students (3 M.S., 8 Ph.D.) and 4 B.S. students engaged in thesis research in the program. Three new graduate students (all Ph.D.) were recruited starting fall semester, 2012. 2) Faculty have published 97 total peer-reviewed journal articles (27 so far in 2012, 19 in 2011, 20 in 2010, 11 in 2009, 10 in 2008, and 10 in 2007), indicating a strong positive increase in research output. Of the peer-reviewed journal articles, 18 were first-authored by 7 Ph.D. students. Faculty and students gave 168 total presentations at professional meetings (24 in 2012 so far, 44 in 2011, 39 in 2010, 27 in 2009, 17 in 2008, and 17 in 2007), indicating a strong presence at professional presentations. -
Differential Settlement of Foundations on Loess
Missouri University of Science and Technology Scholars' Mine International Conference on Case Histories in (2013) - Seventh International Conference on Geotechnical Engineering Case Histories in Geotechnical Engineering 02 May 2013, 2:00 pm - 3:30 pm Differential Settlement of Foundations on Loess Dušan Milović University of Novi Sad, Serbia Mitar Djogo University of Novi Sad, Serbia Follow this and additional works at: https://scholarsmine.mst.edu/icchge Part of the Geotechnical Engineering Commons Recommended Citation Milović, Dušan and Djogo, Mitar, "Differential Settlement of Foundations on Loess" (2013). International Conference on Case Histories in Geotechnical Engineering. 10. https://scholarsmine.mst.edu/icchge/7icchge/session02/10 This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License. This Article - Conference proceedings is brought to you for free and open access by Scholars' Mine. It has been accepted for inclusion in International Conference on Case Histories in Geotechnical Engineering by an authorized administrator of Scholars' Mine. This work is protected by U. S. Copyright Law. Unauthorized use including reproduction for redistribution requires the permission of the copyright holder. For more information, please contact [email protected]. DIFFERENTIAL SETTLEMENT OF FOUNDATIONS ON LOESS Dušan Milović Mitar Djogo University of Novi Sad University of Novi Sad Novi Sad, SERBIA Novi Sad, SERBIA ABSTRACT Experience gained during several decades shows that the loess soil in some cases undergoes structural collapse and subsidence due to inundation and that in some other cases the sensitivity of loess to the collapse is considerably less pronounced. In this paper the behaviour of three 12 story buildings A, B and C, of the same static system and the identical shapes have been analyzed. -
Soil Provides Poor Road Construction Support
Engineering © MARINO ENGINEERING ASSOCIATES, INC. • Issue 7 From Research SOIL PROVIDES POOR to Practice ROAD CONSTRUCTION Some earthwork construction SUPPORT claims result from certain pay items containing incidental tasks The new concrete pavement for an airport facility in with no quantification relative to Memphis, TN had an abnormal and alarming amount of this work effort but are still cracking. Also, there were significant difficulties during construction in preparing the subgrade. As a result of these required under the contract. construction and performance problems, MEA was requested to conduct a forensic geotechnical investigation. An example of this is when the contractor is required to maintain Loess (a wind-blown soil deposit) was the immediate the subgrade. Maintenance subgrade support for the about 16 acres of new pavement. Upon visual examination, this loess subgrade appeared to be depends on the compatibility moist and a typical loess soil with significant amount of silt. In plans and specifications to the the lab, however, when the above loessal soils were tested subgrade soil. The contractor across the typically recommended and specified compaction must then assume based on the ranges, this soil was found to have extremely detrimental contract documents how much characteristics for pavement support and construction. In addition to having low bearing strength at both modified and effort this will take. If he is wrong, standard Proctor compaction limits, there was also significant it will impact his associated costs swell. Also, the soaked bearing strengths for this soil were and the added subgrade always lower than the recommended range for pavement maintenance can result in design. -
Recent Advances in Offshore Geotechnics for Deep Water Oil and Gas Developments
Ocean Engineering 38 (2011) 818–834 Contents lists available at ScienceDirect Ocean Engineering journal homepage: www.elsevier.com/locate/oceaneng Recent advances in offshore geotechnics for deep water oil and gas developments Mark F. Randolph n, Christophe Gaudin, Susan M. Gourvenec, David J. White, Noel Boylan, Mark J. Cassidy Centre for Offshore Foundation Systems – M053, University of Western Australia, 35 Stirling Highway, Crawley, Perth, WA 6009, Australia article info abstract Article history: The paper presents an overview of recent developments in geotechnical analysis and design associated Received 7 July 2010 with oil and gas developments in deep water. Typically the seabed in deep water comprises soft, lightly Accepted 24 October 2010 overconsolidated, fine grained sediments, which must support a variety of infrastructure placed on the Available online 18 November 2010 seabed or anchored to it. A particular challenge is often the mobility of the infrastructure either during Keywords: installation or during operation, and the consequent disturbance and healing of the seabed soil, leading to Geotechnical engineering changes in seabed topography and strength. Novel aspects of geotechnical engineering for offshore Offshore engineering facilities in these conditions are reviewed, including: new equipment and techniques to characterise the In situ testing seabed; yield function approaches to evaluate the capacity of shallow skirted foundations; novel Shallow foundations anchoring systems for moored floating facilities; pipeline and steel catenary riser interaction with the Anchors seabed; and submarine slides and their impact on infrastructure. Example results from sophisticated Pipelines Submarine slides physical and numerical modelling are presented. & 2010 Elsevier Ltd. All rights reserved. 1. Introduction face a significant component of uplift load for taut and semi-taut mooring configurations. -
IEEE Paper Template in A4
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-ISSN: 2278-1684,p-ISSN: 2320-334X, Volume 15, Issue 5 Ver. IV (Sep. - Oct. 2018), PP 34-40 www.iosrjournals.org Experimental Investigations of Electrical Resistivity of Different Field Soils Dr. T. Kiran Kumar1 P. Suresh Praveen Kumar2 K. Padmavathamma3 1 Professor, Department of Civil Engineering, KSRM College of Engineering (A), Kadapa, A.P., India. 2 Asst. Professor, Department of Civil Engineering, KSRM College of Engineering (A), Kadapa, A.P., India. 3M.Tech Scholar, Department of Civil Engineering, KSRM College of Engineering (A), Kadapa, A.P., India Corresponding Author: Dr. T. Kiran Kumar Abstract: The geophysical method which dominant by geophysicists become one of most popular method applied by engineers in civil engineering fields. Electrical Resistivity Method (ERM) is one of geophysical tool that offer very attractive technique for subsurface profile characterization in larger area. Applicable alternative technique in groundwater exploration such as ERM which complement with existing conventional method may produce comprehensive and convincing output thus effective in terms of cost, time, data coverage and sustainable. ERM has been applied by various applications in groundwater exploration. Over the years, conventional method such as excavation and test boring are the tools used to obtain information of earth layer especially during site investigation .Resistivity measurements are associated with varying depths relative to the spacing between two electrodes in the test. Soil resistivity and ground resistance at ten different sites nearby K.S.R.M College areas using grounding system with aluminium rods. This study was able to prove that the ERM can be established as an alternative tool in soil identification provided it was being verified other relevance information such using geotechnical properties.