driven vibrated or torqued steel pipe piles

... dearth of test data for open-ended pipe piles with adjacent CPT profiles Table lists nine field tests on openended steel pipe piles in sand, for which relevant CPT and IFR or PLR data are available ... steel pipe piles tested in Tokyo Port Bay (Kikuchi et al 2007), which provide a valuable opportunity to examine the performance of the new and existing methods when applied to real offshore piles ... knowledge about the working performance of open-ended steel pipe piles. ” Chinese J Geotech Eng., 21(1), 111–114 (in Chinese) O’Neill, M W., and Raines, R D (1991) “Load transfer for pipe piles in highly...

Ngày tải lên: 13/08/2015, 10:37

... offshore environments Most offshore structures are supported on steel pipe piles which are designed in accord with API Recommended Practice for Planning, Designing, and Constructing Fixed Offshore ... in Sand in the prediction is particularly high for open-ended steel pipe piles, such as the piles used to support offshore oil production platforms (Olson 1990; Toolan et al 1990, Hossain and ... capacity of piles has the potential to provide cost savings for both terrestrial and offshore piles 1.2 Installation Effects That Influence the Capacity of Pipe Piles in Sand 1.2.1 Plugging of Piles...

Ngày tải lên: 31/03/2014, 16:20

... offshore environments Most offshore structures are supported on steel pipe piles which are designed in accord with API Recommended Practice for Planning, Designing, and Constructing Fixed Offshore ... in Sand in the prediction is particularly high for open-ended steel pipe piles, such as the piles used to support offshore oil production platforms (Olson 1990; Toolan et al 1990, Hossain and ... capacity of piles has the potential to provide cost savings for both terrestrial and offshore piles 1.2 Installation Effects That Influence the Capacity of Pipe Piles in Sand 1.2.1 Plugging of Piles...

Ngày tải lên: 28/06/2014, 22:20

... required for full mobilisation of base resistance Depending on the installation method, most piles are categorised into two main types: non-displacement piles or displacement piles Nondisplacement piles ... formula, which has been in use for more than a century, assumes a constant Sc to be equal to 2.54 mm for an air, a steam or a diesel hammer, and equal to 25.4 mm for drop hammer A safety factor ... theoretical solution, the conventional Smith method, and the rigorous continuum method FLAC3D 3.1 Introduction Open-ended steel pipe piles have been used for years as the primary solution for...

Ngày tải lên: 21/05/2016, 22:14

... (constant for a given grade of steel, 0.07 for medium carbon steel (maximum specified carbon 0.19 % or greater), 0.08 for ferritic alloy steel, 0.09 for austenitic steel, and 0.09 for low-carbon steel ... stainless steel pipe, or 50 % of the specified minimum yield strength for austenitic alloy and stainless steel pipe and for ferritic/austenitic stainless steel pipe The test pressure or stress ... length of pipe NPS 1⁄4 or larger shall be marked, in 28 Keywords 28.1 alloy steel pipe; austenitic stainless steel; duplex stainless steel; ferritic/austenitic stainless steel; seamless steel pipe; ...

Ngày tải lên: 08/09/2016, 00:50

... contact areas 14 Keywords 14.1 corrosion resistance; fusion-bonded epoxy powder coating; pipe piles ANNEX (Mandatory Information) A1 QUALIFICATION OF ORGANIC COATINGS FOR PIPE PILING coated with a ... surfaces of steel pipe piles to be coated shall be precleaned, as required, in accordance with SSPC-SP1 Steel surfaces shall be cleaned by abrasive blast cleaning to near-white metal in accordance ... (inspector) shall be allowed entry to the area of the manufacturer’s plant where work on the purchaser’s order is being performed during times of operation The manufacturer shall afford the inspector...

Ngày tải lên: 08/09/2016, 00:58

Ngày tải lên: 19/04/2017, 15:15

... data as:    For piles 24 IN or less in diameter (length of side for square piles) - The Davisson Method, For piles larger than 36 IN in diameter (length of side for square piles) - at a pile ... e.g., steel H -piles and open For nondisplacement piles, e.g., steel H -piles: ended pipe piles that have not yet plugged Plugging occurs when the soil between the flanges N1 (10.7.3.8.6g-3) in a steel ... Examination of soil samples from borings for the presence of jointing, slickensiding, or a blocky structure and for changes in color, and Laboratory testing for determination of soil moisture...

Ngày tải lên: 29/09/2013, 12:20

... with market-pull factors being expected to be more important for cleaner products and processes than for endof -pipe technologies The major technology-push and market-pull factors found in innovation ... environmental technologies, be it end-of -pipe or cleaner production technologies External forces, such as labor unions (unions) or environmental or neighborhood groups (green orgs) not seem to be influential ... leads to energy and /or material savings as well as cost savings Furthermore, technological capabilities seem to be more important for cleaner technologies than for end-of -pipe measures The respective...

Ngày tải lên: 22/02/2014, 09:20

... pile depth Driven pile foundations have been used to support many types of onshore and offshore structures over the past 100 years, including recent wind tower foundations Driven piles will continue ... with an impact hammer Vibratory hammers can be used for final driving criteria with field verification of penetration rate and horsepower, supported by pile load testing Additional ... dynamic testing can be done to verify the performance of the pile driving in lieu of additional pile load testing Two strain transducers and two piezoresistive accelerometers are attached three...

Ngày tải lên: 07/06/2014, 11:44

... length of pipe from each lot of each pipe size For continuouswelded pipe, a lot shall contain no more than 25 tons [23 Mg] of pipe for pipe sizes NPS 11⁄2 [DN 40] and smaller, and no more than ... The steel for both seamless and welded pipe shall be made by one or more of the following processes: open-hearth, electric-furnace, or basic-oxygen 2.5 API Standard: 5L Specification for Line Pipe ... A 865 Specification for Threaded Couplings, Steel, Black and Zinc-Coated (Galvanized) Welded or Seamless, for Use in Steel Pipe Joints B Specification for Zinc E 29 Practice for Using Significant...

Ngày tải lên: 10/07/2014, 23:20

... pipe; seamless steel pipe; steel pipe; welded steel pipe; zinc coated steel pipe Test pressure NDE Test Pressure/NDE APPENDIXES (Nonmandatory Information) X1 DEFINITIONS OF TYPES OF PIPE X1.1 Type ... continuous-welded pipe, a lot shall contain no more than 25 tons [23 Mg] of pipe for pipe sizes NPS 11⁄2 [DN 40] and smaller, and no more than 50 tons [45 Mg] of pipe for pipe sizes NPS [DN 50] and larger For ... Specification for Line Pipe1 5 Materials and Manufacture 4.1 The steel for both seamless and welded pipe shall be made by one or more of the following processes: open-hearth, electric-furnace, or basic-oxygen...

Ngày tải lên: 10/07/2014, 23:20

... accurate guide, no liability or responsibility for any foundation design or other can be accepted in this respect by the authors, the organisations for which they work or the publishers Printed ... reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying or otherwise, without the prior written permission of the Publishing Director, ... capacity of piles with non-circular cross-sections 26 3.4.1 3.4.2 Recommendations for rectangular piles 26 Recommendations for H section piles .26 DESIGN METHODS FOR PILES IN...

Ngày tải lên: 13/08/2015, 10:35

... methods for displacement piles in sand UWA Report, GEO: 05341.1 Lehane, B.M., Schneider, J.A., and Xu, X 2005b CPT based design of driven piles in sand for offshore structures UWA Report, GEO: ... Load tests on pipe piles for development of CPT-based design method Final report, FHWA/IN/JTRP-2002/4 Schneider, J.A & Lehane, B.M (2005) Correlations for shaft capacity of offshore piles in sand ... density One of the factors giving rise to the superior performance of the UWA-05 method for pipe piles is the inclusion of the effective area ratio terms in the expressions for base and shaft capacities...

Ngày tải lên: 13/08/2015, 10:37

... are usually performed within a few days of driving This paper reports ndings from a programme of mainly tension tests on steel pipe piles performed in dense sand at Dunkirk, northern France The ... the shaft capacities of driven piles in sand Geotechnique 47, No 2, 353361 CUR (2001) Bearing capacity of steel pipe piles, Report 2001-8 Gouda, the Netherlands: Centre for Civil Engineering Research ... explanations for the time-dependent processes Some, including corrosion, were discounted as probable major causes (because the process is common to steel, timber and concrete driven piles and develops...

Ngày tải lên: 13/08/2015, 10:38

... C = 0.60 for pipe NPS through NPS 5, = 0.75 for pipe larger than NPS through NPS 8, = 0.85 for pipe larger than NPS through NPS 18, and = 0.90 for pipe larger than NPS 18 11.3 For pipe sizes ... titanium, phosphorus, sulfur, and boron, except that the product analysis for boron is not required Titanium is reported for information only and is not a cause for rejection 7.7 If one or both of ... to use 2⁄3 or 1⁄2 size TABLE Relationship Between Pipe Dimensions and Required Charpy Specimens NOTE 1—Charpy testing is not required on any pipe smaller than NPS or for pipe NPS or larger with...

Ngày tải lên: 08/09/2016, 00:41

... compliance factor that is dependent on the carbon content as follows: Materials and Manufacture 6.1 Skelp widths for helical seam pipe shall be neither less than 0.8 nor more than 3.0 times the pipe s ... direction shall not exceed one half the pipe diameter for pipe specified wall thickness 0.500 in [12.7 mm] and smaller, or more than 3⁄16 in [4.8 mm] for specified wall thicknesses greater than ... shall be made for each heat of steel furnished under this specification 7.5 Product analyses shall be made on at least two samples from each heat of steel Product analysis for boron is not required...

Ngày tải lên: 08/09/2016, 00:48

... [mm], and C = 0.60 for pipe NPS through NPS 5, 0.75 for pipe larger than NPS through NPS 8, 0.85 for pipe larger than NPS through NPS 18, 0.90 for pipe larger than NPS 18 9.3 For pipe sizes smaller ... The steel for any grade, by heat and product analyses, shall contain no more than 0.22 % carbon, 0.015 % sulfur, and 0.025 % phosphorus 7.2 The steel shall contain no more than 0.0007 % boron, ... maintained for not less than s for all pipe sizes where: N = adjusted value, ft·lbf [J], and R = value required by 8.2.4 8.2.4 For pipe smaller than NPS 5, the absorbed energy requirement for full...

Ngày tải lên: 08/09/2016, 00:56

... 3.1.2 bolting material—rolled or forged bars or blanks, wire, rod, threaded bar, rotary pierced or extruded seamless tubes, bored bars, or forged hollows from forged or rolled bar segments to be ... materials 21 Keywords 21.1 austenitic stainless steel; bolts, steel; fasteners, steel; nuts, steel; pressure vessel service; steel bars, alloy; steel bars, SUPPLEMENTARY REQUIREMENTS One or more of the ... Loading for Shipment 20.1 Packaging, marking, and loading for shipment shall be in accordance with Practices A 700 carbon; steel bars, stainless; steel bolting materials; stainless steel bolting...

Ngày tải lên: 08/09/2016, 01:00

... Keep power in your pocket (e.g. attorney, credible reference) Keep the door open Conflict as a Choice Point  Explore whether conflict is a signal for  a change  View the disagreement as a choice  point and explore options for moving  ... Pause when formulating  judgment   Understand what was meant by  actions or words  Reflect on information and ask  for additional information  Reinterpret by applying an  alternate explanation  Redirect conversation toward  ... Dismissive – interrupting, talking over, ignoring  {men engage more frequently than women} • Exclusionary – leaving someone out of the  meeting, discussion or social gathering • Undermining – going behind the back of others or using insults to discredit arguments...

Ngày tải lên: 22/08/2012, 22:07