av J Tornborg · 2017 · Citerat av 3 — Fellenius, B. H. (1998). ”Recent advantages in the design of piles for axial loads, dragloads, downdrag, and settlement”, ASCE and Port of NY 

av L Bjerin · 1977 · Citerat av 2 — The aim of the investigation is to study the downdrag pile, downdrag forces are obtained in the pile Fellenius, B.H ., 1972, Down-drag on Piles in Clay due.

resistances below the zone. Fellenius and Siegel (2008) questioned the validity of the AASHTO Specifications in case of liquefaction-induced downdrag. Fellenius and Siegel (2008) applied the unified method (Fellenius 1984; 2004; 2020) to pile analysis to account for seismic liquefaction effects. Bengt H. Fellenius on “Downdrag Settlement a Single Floating Pile” authored by W.H. Ting Published in Geotechnical Engineering, Vol. 31, No. 2, pp.

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However, I do not participate in these social networks (not even Facebook). Downdrag, i.e., settlement of the piled foundation, is a very important issue Based on filed experiments, Fellenius (2006) observed that NSF can produce additional pile axial force for more Fellenius, B. H., and Siegel, T. C. 2008. Pile drag load and downdrag considering liquefaction, Pile Driver, the Official Publication of the Pile Driving Contractors Association, 5(4) pp. 68-75 This means that the magnitude of the downdrag is governed by the pile toe load-movement response to the downward shift of the neutral plane. While there is a reduction in shaft resistance due to the reduction in strength within the liquefied layers, this reduction will only influence the pile design length where the liquefying layer is very thick. Fellenius and Siegel (2008) applied their "unified pile design" approach which was developed for downdrag in clays, to the problem of downdrag in liquefied sand, once again assuming that negative FOR AXIAL LOADS, DRAGLOADS, DOWNDRAG, AND SETTLEMENT ASCE and Port of NY&NJ Seminar1), April 22 and 23, 1998 Bengt H. Fellenius Urkkada Technology Ltd. Ottawa, Ontario. Introduction.

Aspects of drivability for input to WEAP is also included.

Mar 25, 2016 Presence of negative skin friction or downdrag causes an additional Fellenius. [2,3,4], Blanchet et al. [5] and Indraratna et al. [6] conducted 

Fellenius (1988) identified changes in effective stress during reconsolidation of the soil after pile construction as a possible cause of negative skin friction development.Fellenius (1969), Leung at al. (1991), and Leifer (1992) showed that a transient (live) load will not coexist with a drag force. Email: Bengt (at) Fellenius (dot) net ; I apologize for not having replied to those who have tried to connect to me via Linked-In, Research-Gate, and other such sites.

Fellenius, B.H., Abbasi, B., and Muhunthan, B., 2020. Liquefaction induced downdrag for the Juan Pablo II Bridge at the 2010 Maule earthquake in Chile. Geotechnical Engineering Journal of the SEAGS & AGSSEA, June 2020, 51(2) 1-18.

68-75 This means that the magnitude of the downdrag is governed by the pile toe load-movement response to the downward shift of the neutral plane.

FOR AXIAL LOADS, DRAGLOADS, DOWNDRAG, AND SETTLEMENT ASCE and Port of NY&NJ Seminar1), April 22 and 23, 1998 Bengt H. Fellenius Urkkada Technology Ltd. Ottawa, Ontario Introduction Design of piles requires understanding of how load is transferred from pile to soil and, less obvious but equally important, from soil to pile. 6) B.H. Fellenius, Downdrag on piles in clay due to negative skin friction Canadian Geotechnical J. 9: 4 (1972) 323-327 Fellenius, B. H. (1972): Downdrag on piles in clay due to negative skin friction, Canadian Geotechnical J., 9(4), 323-327. 7.16.3 Downdrag 7.17 The Unified Design Method for Capacity, Drag Load, Settlement, and Downdrag 7.18 Piles in Swelling Soil 7.19 Group Effect 7.20 An example of settlement of a large pile group 7.21 A few related comments 7.21.1 Pile Spacing 7.21.2 Design of Piles for Horizontal Loading 7.21.3 Seismic Design of Lateral Pile Behavior value of about 200 lb/ft2. According to Fellenius, this value will adequately predict the downdrag load.
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While there is a reduction in shaft resistance due to the reduction in strength within the liquefied layers, this reduction will only influence the pile design length where the liquefying layer is very thick. Fellenius and Siegel (2008) applied their "unified pile design" approach which was developed for downdrag in clays, to the problem of downdrag in liquefied sand, once again assuming that negative FOR AXIAL LOADS, DRAGLOADS, DOWNDRAG, AND SETTLEMENT ASCE and Port of NY&NJ Seminar1), April 22 and 23, 1998 Bengt H. Fellenius Urkkada Technology Ltd. Ottawa, Ontario. Introduction.

1412  av L Bjerin · 1977 · Citerat av 2 — The aim of the investigation is to study the downdrag pile, downdrag forces are obtained in the pile Fellenius, B.H ., 1972, Down-drag on Piles in Clay due. 4 feb. 2016 — Bengt H. Dragload-Downdrag- Bengt H. Fellenius, April 1998 Page 4 Fig. 3.
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value of about 200 lb/ft2. According to Fellenius, this value will adequately predict the downdrag load. Based on pile-uplift test results, Machan and Squier (2), mea­ sured 90 percent reduction in downdrag forces on bitumen-coated piles. When downdrag was predicted using bitumen viscosity, the forces were lower than the field measurements.

ABSTRACT: Pile design Fellenius (2004) proposed a unified method. (Briaud 2010) pointed out situations where downdrag force should be Fellenius (2006) presented the results of long-term measurements in driven piles in  (downdrag) could cause difficulty in construction and main- tenance of the structure the recent definitions proposed by Fellenius (1999):.