Predicting Ground Subsidence Induced By Pumping Combining Space Measurements And Geotechnical Modeling: Application In The Thessaly Region, Greece,
2013
Stamatopoulos and Associates Co., Greece
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,
2013
Polis University, Albania
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,
2013
UKM, Malaysia
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 …
Alignment And Design Of A 73-Km Long Coastal Road In The South-Central Segment Of The Niger Delta, Nigeria,
2013
Rivers State University of Science and Technology, Nigeria
Alignment And Design Of A 73-Km Long Coastal Road In The South-Central Segment Of The Niger Delta, Nigeria, So-Ngo Clifford Teme, Mayne David-West, Nathan Iboroma
International Conference on Case Histories in Geotechnical Engineering
A 73-km East-West Coastal Highway that traverses six major rivers within the Mangrove and Coastal Hydro-meteorological Zones of the Niger Delta is to be built. The total number of river crossings along the five intervening sections of this road is 36.The Niger Delta Sub-region lies at the southern-most portion of Nigeria. Geotechnical investigations along the road profiles showed between 10-18 meters of thick Organic Clays (OH) underlain by 2.50-4.50m thick Silty-clays (OL) along the first three Sections (A,B,&C) of the road. These have saturated densities (γsat) of 10-15.40 kN/m2; PI ~15.00-35.00%; cohesion (c) ≤24.50-68.50kPa, low strength …
Deep Excavation In An Urban Area: A Case Study,
2013
University of Tehran, Iran
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,
2013
University of Tehran, Iran
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 …
Wolf Creek Dam: Instrumentation & Monitoring,
2013
U.S. Army Corps of Engineers, Chicago, IL
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,
2013
Southern Illinois University Carbondale, Carbondale, IL
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 4,
2013
GEI Consultants Inc., Carlsbad, CA
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 5,
2013
University of Michigan, Ann Arbor, MI
General Report - Session 5, Dimitrios Zekkos, Neven Matasovic, Daniel A. Vellone
International Conference on Case Histories in Geotechnical Engineering
This General Report summarizes the papers submitted to Session 5 titled “Case Histories and Failure of Geological, Rock and Mining Engineering, including Underground Structures and Excavations, and Subsidence of Deltas, Anticipation, Characterization, Design and Construction in the Geological Complexity of Mélanges, Fault Rocks, Weathered Rocks, Boulder Colluvium, Lahars, and Similar Bimrocks (Block-in-Matrix Rocks) and Rock/Soil Mixtures.” A total of eleven papers covering the broad session themes described above were submitted. The geographic distribution of the case histories is listed in Table 1. Overall, five papers were submitted from Asia, two from Africa, two from North America, and two from Europe.
General Report - Session 6,
2013
University of Illinois at Chicago, IL
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,
2013
Bechtel Power Corporation, Frederick, MD
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.
Experiences In Large Slope Stability Problems Under Complex Geology,
2013
INGETEC S.A., Colombia
Experiences In Large Slope Stability Problems Under Complex Geology, Camilo Marulanda, Alberto Marulanda, Camilo Phillips
International Conference on Case Histories in Geotechnical Engineering
This article presents a brief summary of the origin of metamorphic rocks, specially schist and the presence of shear or gouge zones in metamorphic rocks, as defects that induce weakness characteristics to the rock mass and that depart substantially from the traditionally evaluation of joints and discontinuities, turning eventually into failure surfaces that govern the stability conditions of surface works. The effect these weak zones inflict into the metamorphic rock mass, especially to schist, causing significant slope stability problems, is illustrated through three case histories. The presence of such defects in the rock mass, detected and analyzed by means of …
"Extreme Foundations" For Peat Deposits: Conceptual Model, Creative Thinking And Learning Process,
2013
Universiti Tun Hussein Onn Malaysia, Malaysia
"Extreme Foundations" For Peat Deposits: Conceptual Model, Creative Thinking And Learning Process, Chee-Ming Chan
International Conference on Case Histories in Geotechnical Engineering
As engineering is essentially an application of science and mathematics to resolve real-life, practical problems, incorporation of actual field encounters or case histories in the teaching process can facilitate better understanding among students by providing a link between the theories and the applied solutions. It is the same for geo-engineering courses, like Advanced Foundation Engineering. By introducing the study of a relevant existing case in the course, the gap between theories and field applications can be effectively bridged. It is therefore no wonder that recent years have seen increased emphasis on problem-based learning in the delivery of engineering courses. In …
Liquefaction Resistance Of Gravelly Soils,
2013
Bechtel Corporation, Evans, GA
Liquefaction Resistance Of Gravelly Soils, Michael R. Lewis, Ignacio Arango, Kenneth H. Stokoe Ii
International Conference on Case Histories in Geotechnical Engineering
Liquefaction assessments of gravels and soils that contain a large gravel fraction are difficult. Undisturbed (intact) sampling of these soils is problematic and laboratory testing carried out on reconstituted samples or on frozen samples obtained from the field is time consuming, expensive, and interpretation of the results requires considerable judgment. Because of these and other issues, for a remote site in British Columbia, Canada (aka “Study Site”), it was decided to carry out the liquefaction potential assessment using existing published relationships and case history data on similar soils. This case history describes the approach utilized, including material mechanical properties, measured …
Networked Geotechnical Near Real-Time Monitoring For Large Urban Excavation Using Multiple Wireless Sensors,
2013
Arup, San Francisco, CA
Networked Geotechnical Near Real-Time Monitoring For Large Urban Excavation Using Multiple Wireless Sensors, Stephen M. Mclandrich, Youssef M. A. Hashash, Nick J. O’Riordan
International Conference on Case Histories in Geotechnical Engineering
A massive urban excavation is required to construct the below-grade rail platforms for the Transbay Transit Center. A performance-based approach was used to design the minimum stiffness of the shoring system to limit excavation-induced ground movements to appropriate magnitudes and minimize impact to adjacent infrastructure. During construction, a fully-automated near real-time digital geotechnical monitoring system that integrates wireless sensor data streams into an integrated database and decision support system called the Global Analyzer is used to track the performance of this excavation. Instrumentation used for monitoring includes inclinometers, deep settlement markers, extensometers, piezometers, and an automated total station network. Some …
Numerical Modeling And Use Of Settlement Reducing Auger Cast-In-Place Piles Below A Mat Foundation,
2013
Terracon Consultants, Inc., Cincinnati, OH
Numerical Modeling And Use Of Settlement Reducing Auger Cast-In-Place Piles Below A Mat Foundation, Swaminathan Srinivasan, Aaron J. Muck
International Conference on Case Histories in Geotechnical Engineering
The 45-story Great American Tower, the tallest building in Cincinnati, is not only changing the downtown skyline, but is an excellent case study of innovation in geotechnical engineering. This project is an excellent example of the use of technological advances in site characterization and soil-structure methods. When an opportunity arises to combine state-of-the-art concepts with advanced modeling tools, engineers need to combine knowledge and forward thinking to geotechnical solutions to promote the state-of-practice. The Great American Tower at Queen City Square in Cincinnati, Ohio combines a mat foundation with a limited number of auger cast-inplace (ACIP) piles, with the piles …
Role Of Case Histories On Geotechnical Engineering Teaching And Practice,
2013
National Institute of Technology Karnataka (Surathkal), India
Role Of Case Histories On Geotechnical Engineering Teaching And Practice, R. Shivashankar
International Conference on Case Histories in Geotechnical Engineering
Geotechnical engineering teaching can be made more interesting with the use of modern methods of teaching and learning aids, visits to construction projects, case studies etc. A faculty at an university/technical institute, who is actively involved in geotechnical designs and consultancy works, will have enough case studies, with the examples of which he, will be able to deliver his lectures more effectively and make a good impression upon the students. The universal mantra nowadays is ‘learning should be made more student centric’. At the author's institute, where a post-graduate and doctoral programme in geotechnical engineering are being successfully run for …
Site Effects Estimation In Tehran City By Using Empirical Methods,
2013
University of Colorado, Boulder, CO
Site Effects Estimation In Tehran City By Using Empirical Methods, Reza Behrou, Mohammad Reza Ghayamghamian
International Conference on Case Histories in Geotechnical Engineering
In this paper, site effects assessment in Tehran city, the capital of Iran, were estimated by using empirical methods. Both spectral ratio of the horizontal components of sedimentary site to rocky site (Hs/Hr) or site/reference, and Horizontal to Vertical Spectral Ratio (HVSR) methods have been used for estimation the site effects parameters. For this purpose, the recorded motions in BHRC (Building and Housing Research Center) acceleration stations were analyzed. These motions were recorded from Changureh-Avaj (2002), Tehran (2003), Firozabad-Kojour (2004) and Kahak-Qom (2007) earthquakes, which have been occurred near to the Tehran city. Some of these motions recorded in rocky …
Using Local Case Histories In Undergraduate Teaching,
2013
University of Pittsburgh at Johnstown, Johnstown, PA
Using Local Case Histories In Undergraduate Teaching, Andrew T. Rose
International Conference on Case Histories in Geotechnical Engineering
One of the challenges of civil engineering practice in central and western Pennsylvania, as well as neighboring states is the variety of geotechnical problems encountered when trying to develop or improve a given site. Slope stability issues, mine subsidence, expansive soils and slag fills, and karst landforms are some of the more common geotechnical problems that might be encountered at a given site. While undergraduate courses and supporting textbooks generally cover the basic principles of geotechnical engineering, time and reference materials necessary to cover some of the specific geotechnical problems commonly encountered in local professional practice are often not available. …
