Zobrazeno 1 - 10
of 115
pro vyhledávání: '"Michael W. O'Neill"'
Publikováno v:
Engineering Structures. 27:736-748
Experimental and computational studies were performed to assess the reduction in shear capacity of drilled shafts having minor flaws. The considered flaws included voids or soil inclusions occupying 15% of the cross-sectional area of the shaft and mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0d44250c868e8c8cc7ce13f0259911a
https://doi.org/10.1016/j.engstruct.2004.12.016
https://doi.org/10.1016/j.engstruct.2004.12.016
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 1936:100-107
Drilled shaft foundations embedded in weak rock formations support a large percentage of bridges in Colorado. Since the 1960s, empirical methods that entirely deviate from the AASHTO design methods have been used for the axial geotechnical design of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db21f356c41f302180762a158429b876
https://doi.org/10.1177/0361198105193600112
https://doi.org/10.1177/0361198105193600112
Publikováno v:
Engineering Structures. 25:47-56
The use of drilled shafts as foundations for bridges and other structures has greatly increased in recent years due to the advent of routine non-destructive evaluation (NDE) methods. The availability of the NDE methods has given engineers and contrac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b30b728aaf3f80b2596d96df2d9743b7
https://doi.org/10.1016/s0141-0296(02)00117-7
https://doi.org/10.1016/s0141-0296(02)00117-7
Publikováno v:
Journal of Geotechnical and Geoenvironmental Engineering. 128:974-985
Lateral loads are often the primary forces that act on drilled shafts when they support retaining walls, bridge piers, or building foundations. The construction of drilled shafts often inadvertently introduces flaws that are not always detectable wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92671386f1c98a7c79cc393e567a9e5d
https://doi.org/10.1061/(asce)1090-0241(2002)128:12(974)
https://doi.org/10.1061/(asce)1090-0241(2002)128:12(974)
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 1786:96-103
The construction process for drilled shafts sometimes introduces structural flaws such as voids or soil inclusions within the shaft. In that case, the reinforcing steel loses concrete cover and comes in contact with the surrounding soil medium, which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0457bb619ef606cc5a9fe38195ef6ccd
https://doi.org/10.3141/1786-11
https://doi.org/10.3141/1786-11
Publikováno v:
Journal of Geotechnical and Geoenvironmental Engineering. 127:385-397
Full-scale lateral load tests on a group of bored and a group of driven precast piles were carried out as part of a research project for the proposed high-speed rail system in Taiwan. Standard penetration tests, cone penetration tests (CPT), and Marc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a4e4b5a338e281390dcdfba992c1c93
https://doi.org/10.1061/(asce)1090-0241(2001)127:5(385)
https://doi.org/10.1061/(asce)1090-0241(2001)127:5(385)
Autor:
Sami W. Tabsh, Michael W. O'Neill
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 1772:65-72
Because of their visually unexposed locations and method of construction, drilled shafts often are constructed with minor anomalies, consisting mainly of small voids, mispositioned rebar cages, and corroded rebars. Anomalies can occur even with accep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::893ee9be0fba9654b0540b1b2eca9ded
https://doi.org/10.3141/1772-08
https://doi.org/10.3141/1772-08
Autor:
Michael W. O'Neill
Publikováno v:
Journal of Geotechnical and Geoenvironmental Engineering. 127:3-16
More than 20 years have passed since a Terzaghi Lecture focused on the topic of deep foundations. However, considerable research has been performed, and experience gained, in this subject area in the intervening period. The objective of this paper is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ab6a985e2fcb5f8a1653b3604a1598e
https://doi.org/10.1061/(asce)1090-0241(2001)127:1(3)
https://doi.org/10.1061/(asce)1090-0241(2001)127:1(3)
Publikováno v:
Journal of Geotechnical and Geoenvironmental Engineering. 124:989-996
This paper explores the removal of organics from soils in a simulated in-situ environment using aqueous solution extraction. A laboratory investigation is described in which organic compounds representative of the major groups of organic contaminants
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d63990976cc67e6b009d5ead6a79ed2
https://doi.org/10.1061/(asce)1090-0241(1998)124:10(989)
https://doi.org/10.1061/(asce)1090-0241(1998)124:10(989)
Autor:
Michael W. O'Neill, Myung Hak Kim
Publikováno v:
Journal of Geotechnical and Geoenvironmental Engineering. 124:771-780
This paper describes an experimental study in which a 305 mm diameter instrumented drilled shaft was installed in a moderately expansive clay soil during the dry season and monitored over a period of about 15 months. The purpose of the study was to i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57048c65bbb792d4e798cc459050df70
https://doi.org/10.1061/(asce)1090-0241(1998)124:8(771)
https://doi.org/10.1061/(asce)1090-0241(1998)124:8(771)