This Standard is applicable to the execution, testing and monitoring of jet grouting works. Design considerations, strictly related to jet grouting works only, are given in clause 7. More general requirements that could be included in, or substituted by clauses of future editions of Eurocode 7 are listed in Annex A. NOTE The jet grouting processes should be distinguished from the grouting processes covered by EN 12715.
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This standard is applicable to the execution, testing and monitoring of geotechnical grouting work. Specific aspects concerning design are provided since ENV 1997-4 has been abandoned. Grouting for geotechnical purposes (geotechnical grouting) is a process in which the remote placement of a pumpable material in the ground is indirectly controlled by adjusting its rheological characteristics and by the manipulation of the placement parameters (pressure, volume and the flow rate). The following principles and methods of geotechnical grouting are covered by this standard : - displacement grouting (compaction grouting, hydraulic fracturing) ; - grouting without displacement of the host material (permeation, fissure grouting, bulk filling). Specialised grouting activities, generally associated with structural and/or emergency works, are not covered by this standard.
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are installed in the ground without excavation or removal of material from the ground except for limiting heave, vibration, removal of obstructions or to assist penetration.
Piles are driven into the ground using impact, vibration, pressing, screwing or a combination of these methods. 1.2 The material of displacement piles covered by this standard can be :
¾ steel ;
¾ cast iron ;
¾ concrete, mortar ;
¾ timber ;
¾ grout ;
¾ combination of above.
1.3 This standard covers prefabricated, cast in place, or a combination of these methods to form displacement
piles of regular shape.
Examples are given in Figures A.2 and A.3 in annex A.
1.4 This standard is limited to piles with a diameter or maximum cross sectional dimension greater than 150 mm.
1.5 Other than practical considerations there are for the purpose of this Standard no limitations regarding shaft
or base enlargements, length or rake.
1.6 The provisions of the standard apply to :
¾ single piles ;
¾ pile groups ;
¾ walls formed by concrete sheet piles.
1.7 Columns constructed by ground improvement techniques (such as mixed in place columns, jet grouting,
compaction grouting, vibro flotation, stone columns are not covered by this standard. Bored piles are covered in EN
1536. Steel and timber sheet piles walls are covered in EN 12063. Micropiles are covered in (WI 00288010)1).
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UIC Report 713 R, Design of monoblock concrete sleepers, 1st edition, November 2004
ISBN: 2-7461-0880-1 (English version)
Pages: 30
Summary
This document gives the requirements for design of prestressed monoblock concrete sleepers. The primary application is for main-line, standard-gauge (1 435 mm) railways with speeds of up to 300 km/h or axle loads up to 300 kN, but the principles may be valid for other applications. A "standard" design may be considered to be suitable for freight trains of up to 250 kN axle load with 120 km/h maximum speed and passenger trains of up to 180 kN axle load with 300 km/h maximum speed.
This document is intended to support but not replace European Standards on this subject, in particular:
- EN 13230 - Concrete sleepers and bearers (May 2002),
- EN 13146 - Fastening systems (May 2002).
This document represents a State of the Art, at the date of publication, as determined by a UIC expert group and should not be a barrier to further development.
Summary
The book is a comprehensive treatment of the application of geotechnical engineering to site selection, site exploration, design, operation and closure of mine waste storage facilities.
The level and content are suitable as a technical source and reference for practising engineers engaged both in the design and operational management of mine waste storage facilities and for senior undergraduate and postgraduate students. The thirteen chapters follow the sequence of the life cycle of a waste storage facility (characterization, site selection, geotechnical exploration, environmental aspects, testing and compaction) and also consider the use of mine waste as a construction material.
The text is liberally illustrated by both line drawings and photographs, and the theoretical passages are supported by typical test results, worked examples and carefully analysed case histories.
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This document is a standard developed by the AASHTO/NSBA Steel Bridge Collaboration. The primary goal of the Collaboration is to achieve steel bridges of the highest quality and value through standardization of the design, fabrication, and erection processes. Each standard represents the consensus of a diverse group of professionals.
As consensus documents, the Collaboration standards represent the best available current approach to the processes they cover. It is intended that Owners adopt and implement Collaboration standards in their entirety to facilitate the achievement of standardization, but it is understood that local statutes or preferences may prevent full adoption for some. In such cases Owners should adopt these documents with the exceptions they feel are necessary.
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Please help me I do not know how to design mat foundation resisting 3 or 4 columns for Self support tower by manual.
Could anybody give me some idea or docs?
:dash2:
Each time I'm posting a technical report, I'm hesitating in which section to place it. The technical reports are not exactly books, nor codes, nor papers. But each of these sections contains of them. Recently, two similar reports (the one was mine) were placed in different sections. It was confusing. So I'm asking. Which is the most appropriate place for them?
Maybe the books' section, because it would be the most easily for people, who are interested in the subject, to find them. But if this is a reason to place TRs concerning concrete in the relevant book section, why don't to post papers on concrete in the same book section? So, I usually place the reports in the journal&paper's section, because it may contain everything, except books, codes and sofware.
But what is your opinion?
Thank you in advance.
Best wishes for the New Year!
P.S.
Similar problem I also see with proceedings of conferences. I would search for them in the journals&papers' section, but in fact they can be found in the books' section.
An understanding of the mechanical properties of unsaturated soils is crucial for geotechnical engineers worldwide, as well as to those concerned with the interaction of structures with the ground. This book deals principally with fine-grained clays and silts, or soils containing coarser sand and gravel particles but with a significant percentage of fines. The study of unsaturated soil is a practical subject, linking fundamental science to nature. Soils in general are inherently variable and their behaviour is not easy to analyse or predict, and unsaturated soils raise the complexity to a higher level. Even amongst practicing engineers, there is often lack of awareness of the intricacies of the subject. This book offers a perspective of unsaturated soils based on recent research and demonstrates how this dovetails with the general discipline of soil mechanics. Following an introduction to the basic soil variables, the phases, the phase interactions and the relevance of soil structure, an up-to-date review of laboratory testing techniques is presented. This includes suction measurement and control techniques in triaxial cell testing. This is followed by an introduction to stress state variables, critical state and theoretical models in unsaturated soils. A detailed description of the thermodynamic principles as applied to multi-phase materials under equilibrium conditions follows. These principles are then used to explore and develop a fundamental theoretical basis for analysing unsaturated soils. Soil structure is broken down into its component parts to develop equations describing the dual stress regime. The critical state strength and compression characteristics of unsaturated soils are examined and it is shown how the behaviour may be viewed as a three-dimensional model in dimensionless stress-volume space. The analysis is then extended to the work input into unsaturated soils and the development of conjugate stress, volumetric and strain-increment variables. These are used to examine the micromechanical behaviour of kaolin specimens subjected to triaxial shear strength tests and lead to observations not detectable by other means. Unsaturated Soils: A fundamental interpretation of soil behaviour covers a rapidly advancing area of study, research and engineering practice and offers a deeper appreciation of the key characteristics of unsaturated soil. It provides students and researchers with a framework for understanding soil behaviour and demonstrates how to interpret experimental strength and compression data. provides engineers with a deeper appreciation of key characteristics of unsaturated soils covers a rapidly advancing area of study, research and engineering practice provides students and researchers a framework for understanding soil behaviour shows how to interpret experimental data on strength and compression the limited number of books on the subject are all out of date
Authors: E. J. Murray and V. Sivakumar
Pages 304
Year : 2010
Publisher : Wiley - Blackwell
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Jennings, Paul C. (1997) Earthquake response of tall regular buildings. Technical Report: CaltechEERL:1997.EERL-97-01. California Institute of Technology.
No abstract available.
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