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Saturday, May 16, 2020 | History

2 edition of Structural design considerations for deep mine shafts found in the catalog.

Structural design considerations for deep mine shafts

Samuel S. M. Chan

Structural design considerations for deep mine shafts

analysis of circular, rectangular, and elliptical openings

by Samuel S. M. Chan

  • 127 Want to read
  • 14 Currently reading

Published by U.S. Dept. of the Interior, Bureau of Mines in Pgh. [i.e. Pittsburgh] Pa .
Written in English

    Subjects:
  • Mine shafts -- Mathematical models.,
  • Finite element method.

  • Edition Notes

    Statementby S.S.M. Chan and M.J. Beus.
    SeriesReport of investigations ;, 8976, Report of investigations (United States. Bureau of Mines) ;, 8976.
    ContributionsBeus, Michael J.
    Classifications
    LC ClassificationsTN23 .U43 no. 8976, TN283 .U43 no. 8976
    The Physical Object
    Paginationii, 37 p. :
    Number of Pages37
    ID Numbers
    Open LibraryOL2663059M
    LC Control Number85600073

    Drilled Shaft Bridge Foundation Design Parameters and Procedures for Bearing in SGC Soils 6. Performing Organization Code 7. Author William N. Houston, Abdalla M. Harraz, Kenneth D. Walsh., Sandra L. Houston, and Courtland Perry 8. Performing Organization Report No. 9. Performing Organization Name and Address ARIZONA STATE UNIVERSITY Work. EXAMPLE 10 - SIGN STRUCTURE FOUNDATION DESIGN 2 L arm = 16 ft ø pole-T = in e sp = 11 ft D arm = ft H sp = 6 ft L sp = 8 ft L pole = 22 ft ø arm-E = in ø arm-B = 10 in Y ø pole-B = in X Z Existing Ground D shaft = 13 ft ø shaft = 36 in SIGN PANEL GEOMETRY INFORMATION.

      Mining, Mine Shaft Design 1. INSPIRING SUCCESSSome of the key topics covered-Investigating the crucial aspectsto take into consideration MINE SHAFTS-Gaining insight into the different Planning andtypes of shafts-Analyzing the contributing Designfactors toward determining theshaft size-Ground water control-Acquiring in-depth insight intothe .   Increasing demand for metals caused by global economic growth and exploitation of shallow mineral deposits forces mineral extraction to go deeper. A direct consequence of this development is an increase in rock pressure-related mining problems. The role of rock engineering in the design and operation of deep mines is discussed in detail. Critical issues Cited by:

    The Book’s Structure and What It Is About xiii Acknowledgements xiv Authors’ Biographies xv Notation xvi PART 1: APPROACH AND FIRST CONSIDERATIONS 1 1 Principles of Foundation Design 3 Introduction 3 Foundation safety criteria 3 Bearing capacity 4 Introduction 4 Bearing capacity 4 Presumed bearing value 4. Structural Foundation Designers Manual Design considerations – granular soils Design considerations – cohesive soils Testing Mine shafts, wells and bell-pits Lime/cement stabilization Reinforced soil


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Structural design considerations for deep mine shafts by Samuel S. M. Chan Download PDF EPUB FB2

Structural design considerations for deep mine shafts: Analysis of circular, rectangular, and elliptical openings [Chan, Samuel S.

M.] on *FREE* shipping on qualifying offers. Structural design considerations for deep mine shafts: Analysis of circular, rectangular, and elliptical openingsAuthor: Samuel S. Chan. Get this from a library. Structural design considerations for deep mine shafts: analysis of circular, rectangular, and elliptical openings.

[Samuel S M Chan; Michael J Beus]. Structural design considerations for deep mine shafts: analysis of circular, rectangular, and elliptical openings A realistic conceptual framework was developed with which to examine the rock and support interaction in deep mine shafts.

Structural analysis techniques overcome some of the historical difficulties with shaft design by Cited by: 1. For old mine shafts, galleries may have been closed with remaining items but without particular design.

Because of various causes, for example concrete segregation or poor lining design, a failure of this deep closure structure can occur allowing the filling material to spread into the galleries, resulting in a collapse of the shaft. File Size: 1MB.

In this paper, the structural and civil engineering aspects in the construction and commission of typical "DEEP COAL MINE SHAFTS" are presented. The typical mine shaft structure with permanent winding system is shown in Fig The general system for mine shaft sinking with a temporary steel head frame is shown in Fig The structural aspects of circular and rectangular shafts are compared using concrete lining, timber, and steel sets for support.

INTRODUCTION Deep mine shafts frequently experience heavy ground pressure, and failure of the rock and/or supporting structures occur both during sinking and throughout the life of the : Michael J. Beus, Samuel S.M. Chan. Structural design considerations for deep mine shafts: analysis of circular, rectangular, and elliptical openings.

Personal Author: "The Bureau of Mines has investigated the structural aspects of shafts and support systems using the finite-element technique. In situ field measurements in deep, vein-type metal mines show that rock stresses Author: Michael J.

Beus, T. Orr, J. Whyatt. Papers presented at the Shaft Engineering conference, organized by the Institution of Mining and Metallurgy in association with the Institution of Civil Engineers and the Institution of Mining Engineers, and held in Harrogate, England, from 5 to 7 June, "Ofthese shafts arevertical and are inclined.

There are no compound shafts butseveral ofthe inclined shafts vary ininclination along their length. Ofthese shafts, are rectangular, are circular, and 8 are elliptical in section." From this statement it is clear that, at that date, no fewer than 40per cent ofthe shafts were in. that process is called “deep mining".

When it comes to design of a mine shaft, there are two options: circular shafts and horizontal shafts (Figure 1, Figure 2). Circular shaft is the most commonly used one. If the shaft should be deep and shaft diameter is supposed to be more than meters, circular shafts are the best Size: KB.

Drilled Deep Foundations – Samuel Paikowsky 3 of References • O’Neill M.W. and Reese L.R. FHWA Publication FHWA -IF, “Drilled Shafts: Construction Procedures and design Methods”, Vol’s I&II • O’Neill M.W.

“Drilled Shafts: Effects of Construction on Performance and Design Criteria” FHWA Conf. December. Geotechnical design considerations for mine shafts Experience has shown that the consequences of damage to shaft systems caused by geotechnical factors are serious and costly.

Control of ground conditions is a key factor in the design and sinking of shafts, as these conditions may vary considerably throughout the length of a shaft and require. Mine specific, may vary also in same mine significantly Design considerations for pillar systems in deep mines Pillar strength Martin and Maybee () Martin, C.D.

and Maybee, W.G.: (), The strength of hard-rock pillars, in International Journal of Rock Mechanics and Mining Sciences, vol. 37, p. – Structural Design of Reinforced Concrete Deep Shafts Inserted Into Abstract: In the design of deep shafts inserted into fractured rock masses it is important to know the behavior and distribution of the vertical loads between the concrete structure and the rock mass.

Key-Words: Vertical load distribution, structural design of deep File Size: KB. A METHODOLOGY FOR LINING DESIGN OF CIRCULAR MINE SHAFTS IN DIFFERENT ROCK MASSES Güler, ErdoanDepartment of Mining Engineering Supervisor: Asst.

Prof. Hasan Öztürk January72 pages The objective of this thesis is to predict lining thickness inside circular mine shafts. A numerical studyFile Size: 2MB. Soils and Foundations Chapter 3 Bangladesh National Building Code 6‐ ALLOWABLE BEARING CAPACITY: The maximum net average pressure of loading that the soil will safely carry with a factor of safety considering risk of shear failure and the settlement of foundation.

These closures must be fully considered in the design of the mine and its underground structures. One solution often employed for the mine shafts is a concrete liner that goes through the halite material.

It is necessary to isolate the liner from the inward and radial movement from the surrounding halite for the life of the mine. Deep Thinking: Shaft Design and Safety for a New Generation of Mines As increasingly deeper deposits are A new deep-mine potash project is even under evaluation in the U.K., and in each case, the arrival of new players into the market has under-pinned the surge in development activity.

the twin K3 shafts will be 1, m deep and m. @article{osti_, title = {Update of status report on deep shaft studies}, author = {}, abstractNote = {The following aspects of shaft sinking are considered: the effects of geology, factors affecting shaft size, the conventional shaft sinking techniques and the newer mechanized methods, several representative or difficult shafts, and.

Shaft mining or shaft sinking is excavating a vertical or near-vertical tunnel from the top down, where there is initially no access to the bottom. Shallow shafts, typically sunk for civil engineering projects differ greatly in execution method from deep shafts, typically sunk for mining the top of the excavation is the ground surface, it is referred to as a shaft; when.

shafts, service shafts, and for all raises that reach surface. Constructing collars in a rock outcrop or in shallow overburden is relatively straightforward; however, if the soil overburden is deep and especially if it is water bearing, collar construction can become a major project.

Shaft and raise collars are normally lined with Size: 1MB.This manual for civil and structural engineers aims to simplify as much as possible a complex subject which is often treated too theoretically, by explaining in a practical way how to provide uncomplicated, buildable and economical explains simply, clearly and with numerous worked examples how economic foundation design is achieved.This paper considers two shafts as case studies, namely a sub-vertical shaft running between and m below the surface, and a vertical shaft running to a depth of m below the surface in a deep gold mine.

The steelwork in both shafts had extensive corrosion problems, which raised concern about the integrity of the shaft steelwork Cited by: