Foundation analysis and design

Book•

Foundation analysis and design

01 Jan 1968-

TL;DR: In this paper, Fondation de soutenagement et al. presented a reference record for Dimensionnement Reference Record created on 2004-09-07, modified on 2016-08-08.

read less

Abstract: Keywords: Fondation ; Mur de soutenement ; Pieux ; Capacite portante ; Ancrage ; Dimensionnement Reference Record created on 2004-09-07, modified on 2016-08-08

...read moreread less

Citations

PDF

Open Access

More filters

Journal Article•DOI•

A comparative review in regards to estimating bearing capacity in jointed rock masses in northeast Jordan

[...]

Ali El-Naqa¹•Institutions (1)

Hashemite University¹

22 Jun 2004-Bulletin of Engineering Geology and the Environment

TL;DR: An empirical relationship is proposed to estimate the bearing capacity of the rock mass using the GSI-dependent toughness factor (TF), which is correlated with bearing capacity equations used in the literature as discussed by the authors.

...read moreread less

Abstract: There are a number of different methods used for estimating the bearing capacity in jointed rock masses. In this paper, the geological strength index (GSI) introduced by Hoek et al. (1995) was used to estimate the bearing capacity of the rock mass via rock mass rating (RMR). An empirical relationship is proposed to estimate the bearing capacity of the rock mass using the GSI-dependent toughness factor (TF). The proposed formula was correlated with bearing capacity equations used in the literature. The regression analyses showed exponential relationships with a high correlation coefficient.

...read moreread less

6 citations

Cites background or methods from "Foundation analysis and design"

...Bowles (1988) proposed the following formula, also based on the RQD:...
[...]
...…correlation between the allowable bearing capacity stress and RQD, which has a significant influence on the bearing capacity of a rock mass. Bowles (1988) proposed the following formula, also based on the RQD: qult ¼ qr RQDð Þ2 ð11Þ where qr=ultimate strength of rock determined by uniaxial…...
[...]

Journal Article•DOI•

Engineering geological investigation of slow moving landslide in jahiyang village, salawu, tasikmalaya regency

[...]

Dwi Sarah¹, Mudrik R. Daryono¹•Institutions (1)

Indonesian Institute of Sciences¹

28 Mar 2012-Indonesian Journal on Geoscience

TL;DR: In this article, the authors conducted a geotechnical investigation and slope stability analysis of the landslide in Kampung Salawangi, Jahiyang Village, Salawu Subregency, Tasikmalaya, Malaysia.

...read moreread less

Abstract: DOI: 10.17014/ijog.v7i1.133 An understanding of landslide mechanism is imperative to determine the appropriate mitigation method. The slow moving landslide (creeping) which occurred in Kampung Salawangi, Jahiyang Village, Salawu Subregency, Tasikmalaya had caused economical and environmental losses due to the frequent active movement particularly following rainfall events. Engineering geological investigation and slope stability analysis were carried out in the studied area in order to elucidate the mechanism of the landslide. The engineering geological investigation consists of local topographical mapping, geotechnical drillings, hand borings, cone penetration, and laboratory tests. The slope stability assessment of the recent landslide was conducted by a finite element method. The results of engineering geological data analysis show that the studied area is composed of residual soils of soft to firm sandy silt and loose to compact silty sand and base rock of fresh to weathered volcanic breccias with groundwater level varying between 3 - 16 m. The engineering properties of the residual soils indicate that the sandy silt is of high plasticity and the shear strength properties of the sandy silt and silty sand show low value with effective cohesion of 6.0 - 21.74 kPa and effective friction angle of 12.00 - 25.980. The assessment of slope stability shows that the stability of the studied area is largely influenced by the rise of groundwater level marked by the decrease of safety factor and increase of slope displacement.

...read moreread less

6 citations

Cites background or methods from "Foundation analysis and design"

...as the following: • The elasticity modulus (E) for sandy silt was estimated from N-SPT value (Bowles, 1996): E = 0....
[...]
...(1) • The elasticity modulus for silty sand was estimated from N-SPT value (Bowles, 1996): E = 0....
[...]
...…friction angle, φ’ (o) 12.0 - 21.30 13.0 - 25.98 35.0 as the following: The elasticity modulus (E) for sandy silt was estimated from N-SPT value (Bowles, 1996): E = 0.6 (N-SPT+5) (MPa) ........................... (1) The elasticity modulus for silty sand was estimated from N-SPT value…...
[...]
...…the following: The elasticity modulus (E) for sandy silt was estimated from N-SPT value (Bowles, 1996): E = 0.6 (N-SPT+5) (MPa) ........................... (1) The elasticity modulus for silty sand was estimated from N-SPT value (Bowles, 1996): E = 0.5 (N-SPT+15) (MPa) .............................
[...]

Journal Article•DOI•

Charts for probabilistic design of strip footings in cohesionless soils

[...]

Imad A. Basheer¹, Yacoub M. Najjar¹•Institutions (1)

Kansas State University¹

01 Mar 1998-Geotechnical and Geological Engineering

TL;DR: In this article, the authors developed a design chart that enables quick determination of the probability distribution parameters related to the ultimate bearing capacity of shallow foundations resting on (c = 0) soils.

...read moreread less

Abstract: Design charts that enable quick determination of the probability distribution parameters related to the ultimate bearing capacity of shallow foundations resting on (c = 0) soils are developed. These charts are intended to assist foundation designers and analysts in studying the reliability of structures as related to the capacity of the foundation system. The approach presented herein provides a more reliable alternative to foundation design and analysis than the current conventional design procedure which employs the assumption of an appropriate factor-of-safety. © Rapid Science Ltd. 1998

...read moreread less

6 citations

Cites background from "Foundation analysis and design"

...A number of methodologies for determining the ultimate bearing capacity currently exists in the literature ( Bowles, 1986; Das, 1995)....
[...]

Seismic Response of Soil-Pile Foundation-Structure System

[...]

R. Haldar, Sekhar Chandra Dutta

01 Jan 2010

TL;DR: In this article, the authors investigated the seismic response of soil-pile-structure system considering soilstructure interaction effect and found that the column shear may be overestimated while the total shear transmitted to soil may be underestimated if the base shear in fixed base condition is considered.

...read moreread less

Abstract: This paper presents an initial effort to investigate seismic response of soil-pile-structure system considering soilstructure interaction effect. In general, structure and pile foundation under seismic load are designed estimating base shear considering fixed base condition. However, soil flexibility may result significant changes in the response of soil-pile foundation-structure system. Soil-pile-structure system is considered to have an idealised one storey system consisting of a mass in the form a rigid deck supported by four columns. This in turn rests on raft foundation with pile. The piles are modelled by beam-column element supported by laterally distributed springs. A parametric study encompassing feasible variations of parameters is made under spectrum consistent ground motion. A significant change in shear force carried columns and that transmitted to soil is observed as compared to what obtained in fixed base condition due to the soil-structure interaction effect. Summarily study indicates that the column shear may be overestimated while total shear transmitted to soil may be underestimated if the base shear in fixed base condition is considered. The total shear transmitted closely reflects the design shear force to be carried by pile. Hence, there is a possibility of an over-safe column design and unsafe pile design from fixed base assumption. The issue needs further detailed investigation for modifying relevant clauses of design standards.

...read moreread less

6 citations

Cites background or methods from "Foundation analysis and design"

...Other factors attributed from standard bearing capacity equation from Terzaghi and Hansen approach (Bowles 1997)....
[...]
...Subgrade modulus approach (Bowles 1997) is adopted for idealization of those springs under plane strain condition which are connected at various nodal points of modeled pile foundation....
[...]
...Horizontal modulus of subgrade reaction is calculated using the following expression (Bowles 1997),...
[...]
...Horizontal modulus of subgrade reaction is calculated using the following expression (Bowles 1997), n zsBsAsK += (3) ( )γγγ SNScNCA ccs 5.0+= (4) ( )qqs SNCB γ= (5) where, K s is the subgrade modulus of soil, A s is the constant for either horizontal and vertical members, B s is the coefficient for…...
[...]

Journal Article•DOI•

Nonlinear site response evaluation procedure under the strong motion: A case study of Miyaneh, Azarbayjan Sharghi Province, Iran

[...]

Abbas Abbaszadeh Shahri, Katayoun Behzadafshar, Bijan Esf, iyari, Roshanak Rajablou - Show less +1 more

18 Aug 2010-Scientific Research and Essays

TL;DR: A case study on ground response analysis of a geotechnical site in Miyaneh region during the Ardabil earthquake (28 February, 1997, Mw6.1) is presented in this paper.

...read moreread less

Abstract: The objective of a site response analysis is to estimate the ground shaking intensity during an earthquake. The Miyaneh city and its suburban areas are located in the northwest of Iran in Azarbayjan-Sharghi province. This area is prone to high seismic risk due to the presence of several active faults. In this paper, a case study on ground response analysis of a geotechnical site in Miyaneh region during the Ardabil earthquake (28 February, 1997, Mw6.1) is presented. For sitecharacterization, deep site investigations have been undertaken and a seismic geotechnical procedure for the proposed bridge over the rivers at the mentioned site, which is performed for Iran railway network, subjected to earthquake provokes, has been notified. The effect of nonlinearity on site response analysis for the selected site with the assumption of elastic and rigid half space bedrock (by use of nonlinear standard hyperbolic model) was evaluated and the results obtained over a number of geotechnical areas were compared to each other. Test of the capability of designed computer codes by authors, namely; “Abbas converter”, which describes and evaluates the nonlinearity of the subsurface soil conditions encountered at the sites to analyze, evaluate the obtained test, site response and quantify the site effect on the surface over a number of geotechnical areas, were the targets of this study. The results clearly showed that the effect of bedrock and local soil conditions on soil behavior under the earthquake excitation is one of the main effective factors on computed response spectra in ground response prediction. The key factor in this work was to develop and use “Abbas converter”. It has several advantages, which can make and render the study easier, than previous studies done, and take over the encountered problem. Key words: Miyaneh city, “Abbas Converter”, Ardabil earthquake, site response, site amplification.

...read moreread less

6 citations

Collapse

Foundation analysis and design

Citations

Cites background or methods from "Foundation analysis and design"

Cites background or methods from "Foundation analysis and design"

Cites background from "Foundation analysis and design"

Cites background or methods from "Foundation analysis and design"

Related Papers (5)