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Foundations Conditions Study For Aeolian Power Units On Soft Soils Under Static And Seismic Loads. Case Study, Anton Chirica, Dragos Vintila, Diana Tenea Apr 2013

Foundations Conditions Study For Aeolian Power Units On Soft Soils Under Static And Seismic Loads. Case Study, Anton Chirica, Dragos Vintila, Diana Tenea

International Conference on Case Histories in Geotechnical Engineering

The paper presents the analysis of foundations conditions under static and seismic loads for a wind farm located in the Eastern part of Romania. From lithological point of view, the location is characterized by a soft cohesive strata alternation over 40m deep. Some design considerations for obtaining the most economical foundation options are discussed. By taking into account the static and seismic conditions, the soil – structure interaction (S.S.I.) is also revealed together with conclusions on the aeolian towers’ foundations solutions.


Response Of Piles Under A Combination Of Axial Static Loads And Lateral Harmonic Vibrations, Ahmad Dehghanpoor Apr 2013

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, Xin Kang, Xiaoyi Zhao, Bate Bate Apr 2013

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 …


Study Of Extent Of Soil Improvement By Employing Vibro-Compaction Technique, Tejas Belani, Shailendra Nagrikar, Deepak Raj Apr 2013

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 …


Study Of Typical Characteristics Of Expansive Subgrade With Geotextiles And Cushion Materials, Vaishali S. Gor, Liviu S. Thakur, K. R. Biyani Apr 2013

Study Of Typical Characteristics Of Expansive Subgrade With Geotextiles And Cushion Materials, Vaishali S. Gor, Liviu S. Thakur, K. R. Biyani

International Conference on Case Histories in Geotechnical Engineering

Well-built and maintained roads play a major role in the development of a nation. Hence considerable attention is required towards the widening of roads, their stability and periodic repair works. Since the beginning of modern highways, engineers have strived continuously to produce better pavement at lower cost. Most state highways in the central part of India have problems of foundation due to presence of expansive soil i.e. black cotton soil. For the improvement of such problematic soil, conventional technique of soil stabilization, use of cushion, use of moisture barriers, etc. has been adopted. The main objective of the research work …


Predicting Landslide Risk Combining Space Measurements And Geotechnical Modeling: Application At Kerasia Slide, C. Stamatopoulos, P. Petridis, L. Balla, I. Parharidis, M. Foumelis, N. Nikolaou, N. Spanou Apr 2013

Predicting Landslide Risk Combining Space Measurements And Geotechnical Modeling: Application At Kerasia Slide, C. Stamatopoulos, P. Petridis, L. Balla, I. Parharidis, M. Foumelis, N. Nikolaou, N. Spanou

International Conference on Case Histories in Geotechnical Engineering

The work developed and applied a methodology combining (a) space measurement of past displacement and (b) geotechnical modelling of displacement to predict and mitigate the risk of ground displacement cased by progressive slope instability. The area of study is in Kerasea village in Plastiras Lake Municipality. The problem under treatment is a creeping landslide in an inhabited area. Mitigation measures were analyzed.


Access Road Construction Of The Larsi Building Using Reinforced Earth Walls, Amir Eslami Amirabadi, Atefeh Zamani, Cambyse Behnia Apr 2013

Access Road Construction Of The Larsi Building Using Reinforced Earth Walls, Amir Eslami Amirabadi, Atefeh Zamani, Cambyse Behnia

International Conference on Case Histories in Geotechnical Engineering

Mountainous road construction is one of the most difficult and challenging problems in geotechnical engineering. Geometrical complexities and geotechnical conditions make them different from many other urban projects. Retaining wall system is a principal part of these projects. Reinforced Earth Wall system can be considered as an appropriate option for mountainous road construction. In this case history, access road construction of the LARSI building (Shemshak-Iran) is discussed. Shemshak is a tourist town which is located in southern hillsides of the Alborz Mountains. Therefore, the access road is an essential component particularly in cold seasons. Nine terraced levels of the reinforced …


Investigating The Behaviour Of Natural Slopes And Man Made Structures By Terrestrial Sar Interferometry, Paolo Mazzanti Apr 2013

Investigating The Behaviour Of Natural Slopes And Man Made Structures By Terrestrial Sar Interferometry, Paolo Mazzanti

International Conference on Case Histories in Geotechnical Engineering

Remote sensing techniques for the monitoring of deformation are opening new opportunities in the field of geotechnical engineering and geology. Terrestrial SAR interferometry (TInSAR) is one of the most innovative technique and it promises to be a very effective solution which will be extensively used in the near future. TInSAR is characterized by several interesting features such as: i) high density of information; ii) fully remote capability; iii) long range capability; iv) widespread view; v) spatially continuous efficacy and vi) high accuracy. Thanks to these features TInSAR has been used for investigation and diagnostic purposes (i.e. landslide and structural instability …


Table Of Contents, Multiple Authors Apr 2013

Table Of Contents, Multiple Authors

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Conference Schedule, Multiple Authors Apr 2013

Conference Schedule, Multiple Authors

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Preface, Shamsher Prakash Apr 2013

Preface, Shamsher Prakash

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Dedication, Shamsher Prakash Apr 2013

Dedication, Shamsher Prakash

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Meet The Conference Director, Shamsher Prakash Apr 2013

Meet The Conference Director, Shamsher Prakash

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Vijay K. Puri, Vijay K. Puri Apr 2013

Vijay K. Puri, Vijay K. Puri

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Lindsay Lomax Bagnall, Lindsay Lomax Bagnall Apr 2013

Lindsay Lomax Bagnall, Lindsay Lomax Bagnall

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Spl-1: Sarfaz Ali, Sarfaz Ali Apr 2013

Spl-1: Sarfaz Ali, Sarfaz Ali

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Osp-1: Boominathan Adimoolam, Boominathan Adimoolam Apr 2013

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 Apr 2013

Cnb-1: Tony A. Kiefer, P.E., Tony A. Kiefer

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Rbp-1: Shamsher Prakash, Shamsher Prakash Apr 2013

Rbp-1: Shamsher Prakash, Shamsher Prakash

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Soap-1: Clyde N. Baker, Jr., Clyde N. Baker Jr. Apr 2013

Soap-1: Clyde N. Baker, Jr., Clyde N. Baker Jr.

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Steering Committee, Multiple Members Apr 2013

Steering Committee, Multiple Members

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Chicago Area Committee, Multiple Members Apr 2013

Chicago Area Committee, Multiple Members

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Cooperating Organizations, Multiple People Apr 2013

Cooperating Organizations, Multiple People

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Conference Supporters, Multiple Participants Apr 2013

Conference Supporters, Multiple Participants

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


An Example Of Teaching Slope Stability From True Case Histories, Diego Lo Presti Apr 2013

An Example Of Teaching Slope Stability From True Case Histories, Diego Lo Presti

International Conference on Case Histories in Geotechnical Engineering

The use of case histories in classroom mainly involves an inductive teaching approach. This paper discusses the intrinsic advantages and possible drawbacks of such an inductive approach. More specifically, the paper illustrates an example of teaching the class of “slope stability” based on such methodology. The class takes place at the University of Pisa in the second tier degree of Civil Engineering of Infrastructures. The inductive teaching approach is very popular in the British/American Higher Education system. On the contrary it is not so popular in Latin countries like Italy. In order to make more clear the comprehension of this …


An Investigation Of Load And Resistance Factor Design Of Drilled Shafts Using Historical Field Test Data, Kam Ng, Jessica Garder, Sri Sritharan, Jeramy Ashlock Apr 2013

An Investigation Of Load And Resistance Factor Design Of Drilled Shafts Using Historical Field Test Data, Kam Ng, Jessica Garder, Sri Sritharan, Jeramy Ashlock

International Conference on Case Histories in Geotechnical Engineering

To achieve engineered designs with consistent levels of reliability, the Federal Highway Administration (FHWA) mandated that all new bridges initiated after October 1, 2007, including those founded upon drilled shafts, be designed according to the Load and Resistance Factor Design (LRFD) approach. As the first step in developing efficient regional LRFD procedures for drilled shafts, the Drilled SHAft Foundation Testing (DSHAFT) database was formulated. DSHAFT was aimed at assimilating high quality, historical drilled shaft test data from Iowa and the surrounding states, and it presently contains data from 41 drilled shaft load tests, 38 of which are O-cell load tests, …


Application Of Case Studies To Practice In Foundation Engineering In India, Mahesh D. Desai, Jignesh B. Patel, Nehal H. Desai Apr 2013

Application Of Case Studies To Practice In Foundation Engineering In India, Mahesh D. Desai, Jignesh B. Patel, Nehal H. Desai

International Conference on Case Histories in Geotechnical Engineering

India has massive developments, urbanization, housing, communication in last decade. The optimization of cost and saving construction time to complete, are now new aspects which geotechnical engineers are facing. Till today the typical design of shallow foundations of structure-buildings, fly over and dams on non-plastic silty fine sand subsoils found in alluvial deposits of state like Uttar Pradesh, Punjab, Gujarat, Bengal and long coastal belt, were designed by age old practice based on soil mechanics of 1948. Such proven practice became BIS codes for design and construction of structural foundations in 1976-81. The common sense and observational approach of Terzaghi …


Application Of Observational Method In The Successful Construction Of Underground Structures, Sardar Sarovar (Narmada) Project, Gujarat, India, Indra Prakash Apr 2013

Application Of Observational Method In The Successful Construction Of Underground Structures, Sardar Sarovar (Narmada) Project, Gujarat, India, Indra Prakash

International Conference on Case Histories in Geotechnical Engineering

The Sardar Sarovar (Narmada) underground powerhouse is located in Deccan Basalt flows in the lower Narmada valley in Gujarat state. These flows are intruded by dolerite dykes and sill. Basalt flows and dolerite rocks are considered good tunneling media for locating underground structures. Therefore, initial designing of supports was done considering good rock mass conditions. However, during construction numerous geotechnical problems were encountered necessitating review of support system. Rock falls and collapses were observed in tunnel sections passing through dolerite dykes and sills. Cracks were observed in the walls of the powerhouse cavern. During progressive excavations back analysis was done …


Calibration Of Numerical Model For Liquefaction-Induced Effects On Levees And Embankments, Michelle Shriro, Jonathan D. Bray Apr 2013

Calibration Of Numerical Model For Liquefaction-Induced Effects On Levees And Embankments, Michelle Shriro, Jonathan D. Bray

International Conference on Case Histories in Geotechnical Engineering

Soil liquefaction presents a significant hazard to the built environment. The seismically induced permanent displacement of earth levees, dams, and embankments resulting from liquefaction below these earth structures is not well captured in current seismic design practice. The objective of this study is to advance the capabilities of numerical methods toward the solution of problems involving limited lateral spreads. The nonlinear soil constitutive model UBCSAND, as implemented in the finite difference program FLAC, (Itasca), is used to evaluate the seismic deformations of the newly-constructed Moss Landing Marine Laboratory (MLML) in Moss Landing, California resulting from liquefaction-induced lateral movements during the …


Case History — Performance Monitoring Success, Charles B. Grant, Tom Hurley Apr 2013

Case History — Performance Monitoring Success, Charles B. Grant, Tom Hurley

International Conference on Case Histories in Geotechnical Engineering

The City Creek Center urban redevelopment project in Salt Lake City, Utah involved excavations up to 65 feet deep. Shoring systems included more than 29,000 square feet of anchored diaphragm walls, 100,000 square feet of soil nail walls, and 860 linear feet of underpinning. Detailed performance monitoring alerted the project team to unacceptable performance of an anchored diaphragm wall adjacent to an occupied twenty-five-story building on shallow foundations. This knowledge allowed the team to react quickly, stabilize the excavation, investigate the situation, and develop successful remedial measures. The diaphragm wall was reinforced with additional anchors and subgrade concrete struts, allowing …