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Full-Text Articles in Geotechnical Engineering
Crack Damage And Treatment Of Low House On Expansive-Contractive Red Clay, Ke Zunjing, Shan Mei
Crack Damage And Treatment Of Low House On Expansive-Contractive Red Clay, Ke Zunjing, Shan Mei
International Conference on Case Histories in Geotechnical Engineering
Red clay distributes widely in China, it can be classified into two kinds: swell- shrinking and non-swell-shrinking red clay. According to the strong strength and low compressibility features of the Expansive-contractive Red Clay (ECRC), it can be used as an excellent natural ground. Sometimes its swell- shrinkage property may cause crack damage to the low house which based on the ECRC. This rupture is quite common and serious, the crack house became dangerous and had to be rebuilt. In China, the main preventive measures against the crack damage are: moisture holding, deep embedment, soil replacement method (sand cushion), sand surrounding …
Damage Of A Broadcasting Station Due To Shrinkage Of Soil, M. A. El-Sohby, A. M. Elleboudy
Damage Of A Broadcasting Station Due To Shrinkage Of Soil, M. A. El-Sohby, A. M. Elleboudy
International Conference on Case Histories in Geotechnical Engineering
This paper discusses the causes of damage of a broadcasting transmission station suffered from settlement cracks. The station buildings were low-rise reinforced concrete structures with isolated footings founded on alluvial deposit. Investigations revealed that the main causes of the observed nonuniform settlement were the existence of silt pockets below some footings, and the shrinkage of clayey soils due to dryness of the subsoil after ceasing the cultivation of land and using it as construction site. Rehabilitation scheme included structural repair of the cracked columns, beams and walls, and injection grouting of the foundation soil beneath the settled columns.
Damages To A Five-Storied Building Founded Over Peat Layer, M. Gryczmański, J. Sekowski
Damages To A Five-Storied Building Founded Over Peat Layer, M. Gryczmański, J. Sekowski
International Conference on Case Histories in Geotechnical Engineering
In the paper is presented a history of the long-term process of deformations and damages to a five-storied apartment building in Gliwice, one located over a thick lens of a young, very weak peat deposit. The evolution of deformations is defined by changes in time of representative foundation movement components (the angular distortion, deflection ratio, etc.). Relationships given and analysed in the paper are based on the results of settlement monitoring preformed since 1970, and failure escalation descriptions make use of crack documentations included in the expert opinions. The case history also comprises not quite efficient attempts of object protection. …
Dynamic And Static Analysis And In Situ Investigation Of Vibro-Fundex Piles, A. Tejchman, K. Gwizdala
Dynamic And Static Analysis And In Situ Investigation Of Vibro-Fundex Piles, A. Tejchman, K. Gwizdala
International Conference on Case Histories in Geotechnical Engineering
Based on dynamic and static formulas and loading tests analysis of bearing capacity of type Vibro-Fundex driven piles is presented. The piles were embedded into noncohesive soils of various origin and degree of compaction. Using this analysis and performed investigations, the lengths of piles designed on the basis of static formulae have been corrected for safety transferring of loads into subsoil.
Engineering Illustrations Of Correcting Building Inclination By Stress Redistribution Method, Shi-Tao Hou, Xiao-Xue Ding, Zai-Cheng Bai
Engineering Illustrations Of Correcting Building Inclination By Stress Redistribution Method, Shi-Tao Hou, Xiao-Xue Ding, Zai-Cheng Bai
International Conference on Case Histories in Geotechnical Engineering
By drilling large diameter holes in foundation soil and digging out soils to release (or redistribute) lateral stress in subsoil so as to create new settlement, a new method, which is called stress redistribution method, has been developed for correcting inclined building on soft foundation soil. Using this method, tens buildings with inclination up to 1-2% have been corrected and resumed their normal function in Wuhan, China. Some typical case histories are selected to illustrate the sensitive, controllable, and reliable characteristics of this method. The technical problems encountered in correcting process, such as the induced settlement, its influence on neighbour …
Evaluation Of Bearing Capacity Of Friction Pile Based On Uncertainty Of Soil Properties, H. Ochiai, K. Matsui, S. Adachi
Evaluation Of Bearing Capacity Of Friction Pile Based On Uncertainty Of Soil Properties, H. Ochiai, K. Matsui, S. Adachi
International Conference on Case Histories in Geotechnical Engineering
The authors have proposed a method for evaluation of vertical bearing capacity of bored friction pile which might be capable to reflect the uncertainty of soil properties on the evaluation. The rationality of the method is examined from the application to the bridge design in this paper. A vertical bearing capacity of pile foundation is practically estimated by expressions with N-value, in which there are two kinds of uncertainties which depend on the N-values at the estimation points and the coefficient of the bearing capacity expressions. It is, therefore, necessary to improve the accuracy in estimating the bearing capacity that …
Failure Of A Shipping Berth, Dinesh Mohan
Failure Of A Shipping Berth, Dinesh Mohan
International Conference on Case Histories in Geotechnical Engineering
A Major port in India had six cargo berths and a seventh one was to be added to cater for the heavy cargo traffic. The top layer of the soil along the berth was 20 m thick soft and sensitive marine silty clay with an average shear strength of 2 tons/Sqm. The design provided for a berth 342 m long. It had a quay and transit area supported on 750 mm diameter bored piles which was followed by open stacking ground 60 m wide, to be preconsolidated by sand drains. Finally it had a paved unconsolidated area 120 m wide. …
Failure Of Foundation Systems Using Stone Columns, A. Verghese Chummar
Failure Of Foundation Systems Using Stone Columns, A. Verghese Chummar
International Conference on Case Histories in Geotechnical Engineering
The paper presents the case history of the failure of a major foundation system comprising of ground improved by stone column technique. An in-depth analysis of the soil parameters, design and construction details, gives valuable lessons for the precautions to be adopted while implementing stone column technique.
Failure Of Offshore Concrete Piles During Construction, V.D. S. Raju, R. Sundaravadivelu, V. G. Idichandy
Failure Of Offshore Concrete Piles During Construction, V.D. S. Raju, R. Sundaravadivelu, V. G. Idichandy
International Conference on Case Histories in Geotechnical Engineering
Two offshore piles of 1000 mm diameter with 1 m socketing into rock in 15 m water depth have failed during construction. The analysis of failure considering wave and current forces, structural and foundation capacities and vibration measurement on freshly concreted and well set piles is discussed.
Field Study Of Foundation Of Extension Project To Tongji University Library In Shanghai, J. G. Dong, Y. P. Qian, G. Lu, D. Y. Huang
Field Study Of Foundation Of Extension Project To Tongji University Library In Shanghai, J. G. Dong, Y. P. Qian, G. Lu, D. Y. Huang
International Conference on Case Histories in Geotechnical Engineering
The extended building to Tongji University Library is composed of two cantilever beam structure towers with height of 50 m and 11 floor. In order not to affect the normal serviceability of the original library the large and deep compensated box foundation is adopted and a diaphragm wall close against box is employed as an anti-permeability veneering structure. Practice in this extension project has shown that compensated foundation is one kind of the best foundations for tall buildings in the areas with dense buildings in Shanghai. This paper studies in detail the distribution of contact pressure beneath box foundation. It …
Foundation Problems At A Residential Complex – A Case History, U. N. Sinha
Foundation Problems At A Residential Complex – A Case History, U. N. Sinha
International Conference on Case Histories in Geotechnical Engineering
The paper describes a case history in connection with foundation problems at a residential complex on the adequacy or otherwise of the bearing capacity of foundation soil for raising the existing buildings to double storeyed configuration. The study made possible to raise few existing buildings to double storeyed where safe bearing capacity was found adequate and these buildings could reveal good performance since implementation of suggestions.
Foundation Problems In A Developing City, K. R. Saxena, A. S. R. Swamy, R. S. Murthy
Foundation Problems In A Developing City, K. R. Saxena, A. S. R. Swamy, R. S. Murthy
International Conference on Case Histories in Geotechnical Engineering
Foundation problems are normally associated with type of sub strata, soil, rock or any other foreign material' met with, and/or if choice of foundation is not compatible with them. In developing cities, the development stress is on highly developed congested areas, limiting the sub soil investigation, and plans to have high rise buildings, requiring deep foundations and sometimes execution of these posing site problems. The collapse of a multi-storeyed structure caused, according to geotechnical engineers due to overlooking the existence of a drain and a few cases of "composite" foundations are described.
Foundation Selection And Construction Performance - Clark Bridge Replacement, D. E. Daniels, V. A. Modeer, M. C. Lamie
Foundation Selection And Construction Performance - Clark Bridge Replacement, D. E. Daniels, V. A. Modeer, M. C. Lamie
International Conference on Case Histories in Geotechnical Engineering
The paper describes the foundation investigation for the Clark Bridge Replacement, which spans the Mississippi River at Alton, Illinois. The subsurface investigation and the design considerations leading to the foundation piling selection are detailed. The construction performances of the selected H-piles and composite piles are described, including the use of pre-construction wave equation analyses to predict the performance of proposed pile hammers, and the use of the dynamic pile driving analyzer during construction to limit driving stresses and prevent pile damage.
Foundation Strengthening And Protective Measures For Sri Sangameshwar Temple At Kudal Sangam, Karnataka, Devendra Sharma
Foundation Strengthening And Protective Measures For Sri Sangameshwar Temple At Kudal Sangam, Karnataka, Devendra Sharma
International Conference on Case Histories in Geotechnical Engineering
Sri Sangameshwara temple situated at the confluence of two rivers developed noticeable tilt. Also the temple site be inundated by the back waters of the dam during floods. An elaborate plan of dismantling the temple and reconstructing it by the same stone pieces and statuary could be carried through partially only and the sanctum santorum portion housing the ‘Lingam’ had to be retained. Now the entire temple is to be reconstructed as and where it was. The temple was founded on a boulder platform with hetrogeneous river deposits below it. Honouring the constraints of uninterrupted daily worship rituals in the …
Foundations Failures Of Bridges And Geotechnical Investigations, J. K. Jain, Rajesh Bhargava, A. K. Saxena
Foundations Failures Of Bridges And Geotechnical Investigations, J. K. Jain, Rajesh Bhargava, A. K. Saxena
International Conference on Case Histories in Geotechnical Engineering
In the present paper two cases of foundation failures due to which the complete bridge structure have failed are reported. The 93m long Palakmati high level brick masonry arch bridge on Hoshangabad - Piparia Road was constructed in year 1910. This bridge has shallow well brick masonry foundation with brick masonry wall type piers. Foundations of piers were on two circular shallow independent wells. The wells are resting on yellow soil. During floods of 1989, the pier No.3 sunk. This brought down 5 spans. Two well foundations were up-rooted. Cracks were developed in other arches also. The 90.5m long submersible …
Foundations On Salt Bearing Soils Of Jizan, M. N. Fatani, A. M. Khan
Foundations On Salt Bearing Soils Of Jizan, M. N. Fatani, A. M. Khan
International Conference on Case Histories in Geotechnical Engineering
Jizan city is located on a salt dome surrounded by low-lying flat terrain consisting of silty-sandy soils. Being on the sea-shore, water immigrates to the surface leaving a salt crust on the top surface, which is known as 'Sabkha' soil. This salt bearing (saline) soil and the salt dome affected the foundation performance in the area. Buildings are experiencing foundation problems as a result of the low bearing capacity of the 'Sabkha' soil and the dissolution of the salt rock underneath the footings of the low-rise buildings, causing tilting of such structures. This paper would present the geotechnical aspects of …
Friction Pile Foundations Subject To Regional Subsidence, A. Rico, J. M. Orozco, J. L. León
Friction Pile Foundations Subject To Regional Subsidence, A. Rico, J. M. Orozco, J. L. León
International Conference on Case Histories in Geotechnical Engineering
A load mechanism and its associated displacements for friction piles driven in a soil subject to regional subsidence is presented. The effect of a surficial crust, which is not under consolidation, is analyzed and to avoid pile emersion, a boundary for the piles safety factor is established. Foundations supported on friction piles, where the foundation slab should always be in contact with the supporting soil, is also analyzed. It is proposed to consider that the load transmitted by the foundation slab be equal to the excavated weight and it is suggested that the increase pile-soil adherence with time, should be …
Geocomposites For Foundation Uplift Pressure Control In Impermeable Soils, J. C. Chang, J. Y. Wu
Geocomposites For Foundation Uplift Pressure Control In Impermeable Soils, J. C. Chang, J. Y. Wu
International Conference on Case Histories in Geotechnical Engineering
Mat foundations constructed in impermeable soils with a high groundwater table will experience a substantially high buoyancy force due to hydrostatic pressure. Conventional solutions to this problem are to increase the structural weight or install piles or anchors to counterbalance the uplift. These methods are costly, inefficient, and time-consuming. This paper presents a case study to show an innovated approach by using geocomposites to cope with the uplift in impermeable soils. Uplift pressure relief system consisted of geosynthetic materials was installed for a 14- story office and apartment building. The raft foundation was built at 50 feet below ground surface. …
Ground Movements And Pore Pressure Variation Caused By Epb Shield Tunneling - Shanghai (China) Sewage Tunnel, K. M. Lee, X. Yi, R. K. Rowe
Ground Movements And Pore Pressure Variation Caused By Epb Shield Tunneling - Shanghai (China) Sewage Tunnel, K. M. Lee, X. Yi, R. K. Rowe
International Conference on Case Histories in Geotechnical Engineering
The observed pore pressures and deformations induced by an earth balance shield used to construct the Furongjiang sewer tunnel in soft saturated ground in Shanghai, China, are briefly described. Continuous records of immediate surface settlements and ground movements were obtained as the tunnel face approaching and moving away from the observation points. A correlation between resulting heave/settlements and driving force is observed. A finite element technique for predicting these pore pressures and deformations is developed. A comparison is then made between numerical results and the results of field measurements and it is shown that there is encouraging agreement between the …
Inconvenient Foundation System In Problematic Soil, M. M. Reyad
Inconvenient Foundation System In Problematic Soil, M. M. Reyad
International Conference on Case Histories in Geotechnical Engineering
This paper presents a study of a case of severe distress happened in an administration building constructed in new desert area. Some Egyptian deserts have uncommon soil formation which is still not well known for many engineers. Due to insufficient investigations, the soil behaviour was not adequately recognized specially when it comes in contact with water. The result was inconvenient foundation system. Severe cracks and unexpected damage had happened in many parts in the building after use. The paper comprises all the carried out investigations and studies to identify the problem in order to prevent any more deterioration and adopt …
Prediction Of Drilled Shafts Axial Capacities Using Cpt Results, O. M. Alsamman, J. H. Long
Prediction Of Drilled Shafts Axial Capacities Using Cpt Results, O. M. Alsamman, J. H. Long
International Conference on Case Histories in Geotechnical Engineering
Results from nineteen full-scale axial load tests are reviewed to compare methods for predicting axial capacities of drilled shafts using results of Cone Penetration Tests (CPT). The three methods to estimate failure loads are: (1) Nottingham method, (2) Laboratoire des Ponts et Chaussees method (LPC), and (3) the Poulos and Davis method. Comparisons are made to assess the accuracy and dependability of each predictive method. Analyses of results indicate that the LPC method provides the most reliable predictions for axial capacities of drilled shafts in clay.
Reanalysis Of A Vacuum Distillation Unit Foundation, M. N. Viladkar, Swami Saran
Reanalysis Of A Vacuum Distillation Unit Foundation, M. N. Viladkar, Swami Saran
International Conference on Case Histories in Geotechnical Engineering
This paper deals with the reanalysis of the foundation of an already existing Vaccum Distillation Unit in an oil refinery. The reanalysis is required to suggest if the existing foundation of the unit would be capable enough to withstand an additional pressure intensity to which it would be subjected due to proposed expansion of the unit. The paper therefore discusses the geotechnical investigation program undertaken for evaluating the relevant design parameters and the methodology adopted to compute the sustainable pressure of the foundation.
Remedial Measures To A Building Settlement Problem, A. Sridharan, B. R. Srinivasa Murthy
Remedial Measures To A Building Settlement Problem, A. Sridharan, B. R. Srinivasa Murthy
International Conference on Case Histories in Geotechnical Engineering
A ten storeyed building, built on a subsoil of an onshore marine soil, was observed to be tilting away from the vertical. Extensive field and laboratory investigations were carried out to establish the reasons for the differential settlement causing the tilting. Though, nearly uniform pressure has been achieved at the foundation level, presence of a soft marine clay layer with varied thickness and location has caused the differential settlement. To arrest further increase in differential settlement, micropiling in the zone of higher settlement and additional loading and lowering of water table in the zone of lower settlement have been carried …
Researches In The Testing Method Of Dynamic Interaction Of Pile-Soil System Model And Its Calculation Of Dynamic Characteristics, Zu Ming Jiang, Wei Feng Zhao
Researches In The Testing Method Of Dynamic Interaction Of Pile-Soil System Model And Its Calculation Of Dynamic Characteristics, Zu Ming Jiang, Wei Feng Zhao
International Conference on Case Histories in Geotechnical Engineering
This paper provides the theoretical base and a reasonable testing method for pile foundation, the top of piles are free and the bottom of piles are fixed, dynamic characteristics test of continuous beam bridge, considering the dynamic interaction of pile-soil for doing pile foundation dynamic test in site. The model analysis method and CAT( Computer Aided Test ) are used for model parameters identification from the dynamic of pile foundation mode, several low cured modes and natural frequencies are got. Furthermore, the theoretical computation compared with result of the mode test. Both are most alike. The dynamic characteristics of the …
Successful Design Of Expansive-Soil Foundation For A Large Modern Chemical Fertilizer Plant, H. B. Qian
Successful Design Of Expansive-Soil Foundation For A Large Modern Chemical Fertilizer Plant, H. B. Qian
International Conference on Case Histories in Geotechnical Engineering
Various methods of foundation treatment had been adopted in the design of different parts of the plant according to its particular needs respectively. The adopted methods include: selecting rational depth of foundation; increasing pressure on the base of foundation; replacement of soils; sand mat; pier foundation and large diameter cast-in-place piles. In addition to the foundation treatments, measures were also taken to prevent the infiltration of water and to protect the moisture of sub-soils. The super-structure were also designed to have a greater rigidity.
Testing Of Drilled Shafts Socketed Into Limestone, G. L. Panozzo, F. H. Kulhawy, F. C. Bauhof, A. J. O'Brien
Testing Of Drilled Shafts Socketed Into Limestone, G. L. Panozzo, F. H. Kulhawy, F. C. Bauhof, A. J. O'Brien
International Conference on Case Histories in Geotechnical Engineering
Construction of the first phase of the South Parking Garage at the Tampa International Airport in Florida was completed in December 1991. A full-scale field load testing program was used in design of the drilled shaft foundations, with specific goals of determining the bond strength and characterizing the load-displacement behavior of the rock sockets. The displacement behavior and bond strength of the test shafts were predicted from elastic solutions and semiempirical methods. Input parameters included the rock uniaxial compressive strength and elastic modulus. The load test results are compared to the predictions herein, and the practical application of these comparisons …
The Analysis Of Local Subsoil Failure, Igor Soric, Željko Sokolić, Darko Zvornik
The Analysis Of Local Subsoil Failure, Igor Soric, Željko Sokolić, Darko Zvornik
International Conference on Case Histories in Geotechnical Engineering
The paper deals with a case history of a local foundation failure caused by removing the neighbouring building. Displacement measurements after removing the neighbouring all the working stages at the site. The shape of the deformation curve points to failure after removing the neighbouring old building. The foundation soil is a Moscow sand typical for the large part of the urban Moscow area. It is a poorly graded fine sand of a medium density. Using back analysis for all working stages the peak and residual parameters caused by foundation failure were defined. The ratio of residual to peak value of …
The Forest City Landslide, R. E. Hunt, S. M. Miller, V. L. Bump
The Forest City Landslide, R. E. Hunt, S. M. Miller, V. L. Bump
International Conference on Case Histories in Geotechnical Engineering
A large and complex landslide in marine shales is impacting the approach roadway and a 4600-ft long bridge carrying U.S. Route 212 over the Oahe Reservoir at Forest City, South Dakota. After extensive investigation and analyses it was determined that the main landslide could be remediated by unloading the slide using a large cut through the escarpment located upslope from the bridge. Although moving with the main slide, the 900- foot long approach embankment is failing in directions differing from the main slide. Preliminary study indicates that the independent slides within the approach embankment can be stabilized by stone columns …
Tribeca Tower Foundation System, Jacek K. Leznicki, Robert G. Gaibrois, Melvin L. Esrig
Tribeca Tower Foundation System, Jacek K. Leznicki, Robert G. Gaibrois, Melvin L. Esrig
International Conference on Case Histories in Geotechnical Engineering
This paper describes the construction of the foundation system for a 52-story apartment building between Duane Street and Thomas Street (the Tribeca Tower) in the City of New York and the design and implementation of a protection program for a 130-year old designated landmark building founded on a stone "rubble" wall foundation adjacent to the Tribeca Tower.
Uplift Capacity Of Driven Piles From Static Loading Tests, M. H. Hussein, J. M. Sheahan
Uplift Capacity Of Driven Piles From Static Loading Tests, M. H. Hussein, J. M. Sheahan
International Conference on Case Histories in Geotechnical Engineering
A pile driving and testing program was undertaken to evaluate installation procedures, assess capacity (particularly in uplift) of 24- and 30-inch square, prestressed concrete piles, and provide foundation design parameters for the New Edison Bridge project in Fort Myers, Florida. The subsurface profile generally consisted of three major soil strata: an upper clayey sand and sandy clay layer to a depth of about 45 to 50 feet below mudline, a medium dense to dense silty sand middle layer about 10 feet thick, and a third layer of dense to very dense silty fine sand. Eleven prestressed concrete test piles of …