Micropiled-Raft Foundations For High-Rise Buildings On Soft Soils — A Case Study: Kerman, Iran,
2013
University of Oklahoma, Norman, OK
Micropiled-Raft Foundations For High-Rise Buildings On Soft Soils — A Case Study: Kerman, Iran, Hessam Yazdani, Mehdi Momeni, Kianoosh Hatami
International Conference on Case Histories in Geotechnical Engineering
For the structures supported on soft soils, piled raft foundations have been shown to be more economical than conventional piled foundations. In piled raft foundations, the bearing capacity of the underlying soil is taken into account to support the superstructure loads and the piles are placed such that they increase the bearing capacity of the raft and control both the total and differential settlements of the superstructure. In the city of Kerman, Iran, the predominance of soft soils had historically hampered the construction of high-rise buildings across the city. Recently, an eighteen-story reinforced concrete building was constructed on a micropiled-raft …
Pile Driving Adjacent To Municipal Drinking Water Storage Facility,
2013
Zimmerman Consulting, St. Paul, MN
Pile Driving Adjacent To Municipal Drinking Water Storage Facility, R. Eric Zimmerman, Gregory R. Reuter, Chad A. Underwood
International Conference on Case Histories in Geotechnical Engineering
An unexpected response occurred as piles were driven within 3 feet of the west wall of an existing municipal drinking water storage reservoir. Being located in a confined urban space, the expansion of the parking garage at a facility on the south end of Lake Michigan required the installation of 122 steel H-piles as close as 3 feet to the reservoir. Historically, structures on the site were supported on either shallow spread footings or H-piles driven to bedrock. At the contractor’s suggestion, considerable project savings were achieved by driving the H-piles to an extremely hard clay layer (“Chicago hardpan”) above …
Soil Reinforcement By Rigid Inclusions: Contamination Of An Oil Storage Tank,
2013
SIMPRO Geotechnical Consulting Bureau, Tunisia
Soil Reinforcement By Rigid Inclusions: Contamination Of An Oil Storage Tank, Mounir Bouassida, Wafy Bouassida
International Conference on Case Histories in Geotechnical Engineering
An oil storage tank at the North suburb La Goulette (Tunisia) was founded on reinforced soft soil by floating sand columns of 6 m in length and 11% of improvement area ratio within a thick compressible clayey soil. Serious contamination of tank due to very significant differential settlement forces the decision to terminate its operations. Reinforcement by inclined rigid inclusions was suggested to neutralize the evolution of consolidation settlement in sub compressible clay layers. Numerical predictions were implemented for the study of the post behavior of tank on reinforced soil by rigid inclusions. Effectiveness of solution using inclined rigid inclusions …
Case Histories Of Earthen Dam Failures,
2013
BIT, India
Case Histories Of Earthen Dam Failures, R. P. Sharma, Ali Kumar
International Conference on Case Histories in Geotechnical Engineering
Historical study of dams conceived in earlier times is essential. To continue advancing, the engineering profession must periodically review past problems and the lessons that they taught. Candid sharing of information on failures as well as successes is needed. In fact, some of the most valuable learning has come from projects where errors have been clear in retrospect. In recent years, dam safety has drawn increasing attention from the public. This is because floods resulting from breaching of dams can lead to devastating disasters with tremendous loss of life and property, especially in densely populated areas. Past dam failure disasters …
Embankment Construction Using Column Supported Embankment,
2013
Hardesty & Hanover, LLC, West Trenton, NJ
Embankment Construction Using Column Supported Embankment, Aravinda Ramakrishna, Elizabeth Trimpin, Raymond Mankbadi
International Conference on Case Histories in Geotechnical Engineering
The construction of roadway embankments over soft, compressible soils challenges designers with managing large and differential settlements, maintaining embankment stability, and minimizing construction costs associated with long consolidation periods. These challenges can be successfully tackled with the use of an in-situ soil improvement technique such as the Column Supported Embankment (CSE). The Column Supported Embankment involves constructing a pattern of cement-grouted columns in-situ, using the vibro-displacement or displacement-auger technique. The columns are constructed to bear on dense sand strata underlying cohesive strata that would otherwise consolidate under the embankment loading. A load transfer platform (LTP) is used to effectively distribute …
Influence Of Dam And Foundation Discountinuities Using Discountinuum Approach — A Case Study,
2013
Gautam Buddha University, India
Influence Of Dam And Foundation Discountinuities Using Discountinuum Approach — A Case Study, Shilpa Pal, Dilip K. Paul
International Conference on Case Histories in Geotechnical Engineering
Dam-foundation interaction plays an important role in the design and analysis of concrete gravity dams as has been reviewed from the failures of dams in the literature. The objective of the study is to understand the behavior of a concrete gravity dam taking into account the effect of dam and foundation discontinuities using three-dimensional Distinct Element Code. Different models have been formulated considering the complexities involved in the modeling of the dam structure, dam-foundation system and the results have been compared. Modeling the dam with the discontinuity in the form of crack which runs through the concrete section has a …
Failure Investigation Of A Helical Anchor Tie-Down System Supporting An Olympic Size Swimming Pool,
2013
CTLGroup, Columbia, MD
Failure Investigation Of A Helical Anchor Tie-Down System Supporting An Olympic Size Swimming Pool, Tom Labuda, Gene W. Corley, Michael Murphy
International Conference on Case Histories in Geotechnical Engineering
Adoption of new technologies and a push for money-saving value engineering designs may produce unpredictable and unwanted results. Particularly with shrinking budgets, proposals that reduce initial costs become more appealing. However, without careful consideration and implementation, cost-reducing measures can become more expensive in the end. This paper presents a case study of geostructural forensic analysis related to the failure of a helical anchor tie-down system selected to support an Olympic size swimming pool against hydrostatic uplift forces. The selection of helical anchors over a more expensive traditional anchorage system appeared to be a smart value engineering decision for the project’s …
Slurry Caisson Problems And Correction In Chicago,
2013
AECOM, Vernon Hills, IL
Slurry Caisson Problems And Correction In Chicago, Tony A. Kiefer
International Conference on Case Histories in Geotechnical Engineering
The paper describes the design and construction history of 67-story and 45-story residential towers in Chicago which were constructed on straight-shaft caissons supported on the surface of dolomite bedrock at a design bearing pressure of 90 tons per square foot (tsf). The use of the 90 tsf bearing pressure was a first in Chicago and a strong departure from the Chicago code method of requiring rock sockets at least one to six feet deep along with permanent steel casing. The caissons were constructed by using polymer drilling slurry and tremie concrete pouring procedures. This paper presents a brief history and …
Improving The Structural Performance Of Heritage Buildings. A Comprehensive Romanian Experience.,
2013
Technical University of Civil Engineering, Romania
Improving The Structural Performance Of Heritage Buildings. A Comprehensive Romanian Experience., Ion Vlad
International Conference on Case Histories in Geotechnical Engineering
The paper is devoted to historical masonry buildings’ protection against the destructive influence of earthquakes. Experimental and analytical investigations were performed to verify an original methodology that was developed for improving the structural performance of such a building. The seismic retrofitting of the cultural heritage requires compliance with the severe restrictions of the Romanian legislation related to the preservation of the original artistic and structural features. The intervention on the building started with the understanding of the original idea that was in the mind of the first designer. To accomplish this desideratum, two studies have been performed: a historical study …
Geotechnical Lessons Learned From Earthquakes,
2013
University of California, Berkeley, CA
Geotechnical Lessons Learned From Earthquakes, Jonathan D. Bray, J. David Frost, Ellen M. Rathje
International Conference on Case Histories in Geotechnical Engineering
Geotechnical earthquake engineering is an experience-driven discipline. Field observations are particularly important because it is difficult to replicate in the laboratory, the characteristics and response of soil deposits built by nature over thousands of years. Further, much of the data generated by a major earthquake is perishable, so it is critical that it is collected soon after the event occurs. Detailed mapping and surveying of damaged and undamaged areas provides the data for the well-documented case histories that drive the development of many of the design procedures used by geotechnical engineers. Thus, documenting the key lessons learned from major earthquake …
Geotechnical Aspects Of Recent Extreme Floods In Pakistan; A Case History,
2013
University of Witwatersrand, South Africa
Geotechnical Aspects Of Recent Extreme Floods In Pakistan; A Case History, Sarfraz Ali, Fawad Akram, Abdul Qudoos Khan, Misba-Hafsa
International Conference on Case Histories in Geotechnical Engineering
Topographically, Pakistan comprises three major areas; Northern Highland Area, Indus Basin and Baluchistan Plateau. Its elevation varies from Mean sea Level (0 meter) at south to 8619 meters in the North at K-2 Peak. Northern Highland Area, generally sloping southwards includes Himalayan, Karakorum and Hindu-Kush ranges covering approximately an area of 155,831 square kilometers. Indus Basin stretches from foothills of Northern Highland Area to Arabian Sea in south covering approximately an area of 346,259 square kilometers. Baluchistan Plateau in the West and South comprises mountain ranges of Koh-i-Suleman, Kirther, blow-outs of coralline and lacustrine deposits along coastal belt and covers …
Dem Modelling Of Granular Materials During Cyclic Loading,
2013
University of Wollongong, Australia
Dem Modelling Of Granular Materials During Cyclic Loading, J. S. Vinod, Buddhima Indraratna, T. G. Sitharam
International Conference on Case Histories in Geotechnical Engineering
This paper summarises the potential of the Discrete Element Method (DEM) to simulate the behaviour of granular materials under cyclic loading conditions. DEM simulations were carried out on two different assemblies of granular particles (e.g. sand and ballast). It is shown that DEM is capable of simulating the cyclic behavior of granular materials (e.g. liquefaction, post liquefaction and cyclic densification of ballast) similar to the laboratory experiments. Moreover, an instrumented track at Bulli, NSW, Australia, was modeled using DEM to examine the lateral movement of granular materials, including the particle breakage during cyclic loading. The results of these simulations captured …
Study Of Typical Characteristics Of Expansive Subgrade With Geotextiles And Cushion Materials,
2013
Mott Macdonald Pvt. Ltd., India
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,
2013
Stamatopoulos and Associates Co., Greece
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,
2013
University of Tehran, Iran
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,
2013
University of Rome “Sapienza”, Italy
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,
2013
Missouri University of Science and Technology
Table Of Contents, Multiple Authors
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Spl-1: Sarfaz Ali,
2013
South Africa
Spl-1: Sarfaz Ali, Sarfaz Ali
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Steering Committee,
2013
Missouri University of Science and Technology
Steering Committee, Multiple Members
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Core Planning Committee,
2013
Missouri University of Science and Technology
Core Planning Committee, Multiple Members
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
