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Thursday, July 9, 2020 | History

2 edition of Laboratory characterization of rock joints found in the catalog.

Laboratory characterization of rock joints

Laboratory characterization of rock joints

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Published by Division of Regulatory Applications, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, For sale by the U.S. G.P.O., Supt. of Docs. in Washington, DC .
Written in English

    Subjects:
  • Joints (Geology)

  • Edition Notes

    Statementprepared by S.M. Hsiung ... [et al.].
    ContributionsHsiung, S. M., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Regulatory Applications., Center for Nuclear Waste Regulatory Analyses (Southwest Research Institute)
    The Physical Object
    FormatMicroform
    Pagination1 v. (various pagings)
    ID Numbers
    Open LibraryOL15396031M

    Determination of shear strength of a rock specimen is an important aspect in the design of structures such as rock slopes, dam foundations, tunnels, shafts, waste repositories, caverns for storage, and other purposes. Pervasive discontinuities (joints, bedding planes, shear zones, fault zones, schistosity) in a rock mass, and genesis, crystallography, texture, fabric, and other factors can.   Mechanics of Jointed and Faulted Rock book. Mechanics of Jointed and Faulted Rock. 3D Behaviour of Bolted Rock Joints: Experimental And Numerical Study. By M. Kharchafi, G. Grasselli, P. Egger. View abstract. Laboratory equipment for the strength and deformability studies of the rock materials under m ultiaxial stress state.

    Fig 1 shows rock bridges exist in jointed rock masses because of the non-persistent nature of joints. In order to calculate the decrease of strength of jointed rock masses in different directions, It defines the mechanical persistence ratio of rock mass as that the ratio of joint network on the shear failure path when jointed rock mass is sheared to damaged state along a certain direction[]. In the wake of the brutal killings of George Floyd, Ahmaud Arbery, and Breonna Taylor, the very fabric of this country seems to be fraying—revealing rifts, injustice, and .

    Search the world's most comprehensive index of full-text books. My library. 1 In-Situ Characterization of rocks Editors: V.M. Sharma and K.R. Saxena () A. A. BALKEMA PUBLISHERS L ISE / A BINGDON / E XTON (PA) / T OKIO Chapter 2 MEASUREMENT AND CHARACTERIZATION OF ROCK MASS JOINTING by Arild Palmström, Övre Smestad vei 35e, N Oslo, Norway Summary This chapter concentrates on various measurements and the characterization .


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Laboratory characterization of rock joints Download PDF EPUB FB2

Palmström A. (): Chapter 2 of the book: In-Situ Characterization of Rocks 4 Rock mass is a volume of rock(s) intersected by discontinuities. (Rocky) ground is rock mass subjected to stresses and ground water.

Characterization is the process of giving numerical values to rock mass features such as joint density, joint roughness, rock type, etc. from observations or measurements made. Get this from a library. Laboratory characterization of rock joints.

[S M Hsiung; U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Regulatory Applications.; Center for Nuclear Waste Regulatory Analyses (Southwest Research Institute);].

This book is a collection of ISRM suggested methods for testing or measuring properties of rocks and rock masses both in the laboratory and in situ, as well as for monitoring the performance of rock engineering structures.

The first collection (Yellow Book) has been published in In order to. This book is a collection of ISRM suggested methods for testing or measuring properties of rocks and rock masses both in the laboratory and in situ, as well as for monitoring the performance of rock engineering structures.

The first collection (Yellow Book) has been published in Rock hardness should be considered as a behavioral characterization for the rock in question which can only be quantified when a specific method of test or measurement is given.

It is therefore important when selecting specific hardness tests with which to characterize a rock that the test selected is appropriate for both the nature of the rock. This book is a collection of ISRM suggested methods for testing or measuring properties of rocks and rock masses both in the laboratory and in situ, as well as for monitoring the performance of rock e.

3. Shear strength of rock joints. Recent drafts of the ISRM suggested methods for testing rock joints, and widely circulated errors on the Internet and in commercial numerical modelling software, caused the writer to spend some time on the topic of shear strength of rock joints, in his 6th Müller Lecture (Barton, ).

Tatone, B.S.A. Use of a Stereo-Topometric Measurement System for the Characterization Of Rock Joint Roughness In-Situ and in the Laboratory. Citation Downloads Reference Manager (RIS) SpreadSheed (CSV).

Techniques for creating synthetic joint patterns based upon the characterization methods developed are presented, and illustrate (1) the validity of the equations and their attendant assumptions, (2) the interplay of fundamental geometric joint properties in forming the overall joint pattern, and (3) methods for achieving accurate.

() defines Jv as number of joints present in a cubic metre of rock: = ∑ i v S J 1 (2) where S = joint spacing in metres for the actual joint set. RQD is related to J v by the following equation: RQD = - J v (3) and RQD = % when J v ≤ This approach averages out some of the anisotropy in the RQD term and gives a more.

Rock Characterization, Testing & Monitoring: ISRM Suggested Methods Edwin T. Brown Commission on Testing Methods, International Society for Rock Mechanics, - Rock mechanics - pages. Joint characteristics. Introduction. There is a difficulty in giving a concise definition of what constitutes a joint.

Over the years there have been several discussions whether 'joint', 'fracture' or other terms should be preferred in rock mechanics, engineering geology and rock engineering.

ISRM () has chosen 'joint' defined as: "Joint. to - The Blue Book ISRM Suggested Methods published between and are compiled in The ISRM Blue Book: "The Complete ISRM Suggested Methods for Rock Characterization, Testing and Monitoring", Edited by R. Ulusay and J.A.

Hudson. Table 4–13 Fracture type 4–21 Table 4–14 Fracturing density description chart 4–21 Table 4–15 Joint set spacing categories 4–22 Table 4–16 Aperture category 4–23 Table 4–17 Joint infilling 4–24 Table 4–18 Joint persistence categories 4–25 Table 4–19 Types of joint ends 4–25 Table 4–20 Descriptors for weathering condition of joint face rock 4– Characterization and modeling of the shear strength, stiffness and hydraulic behavior of rock joints for engineering purposes With Nick R.

Barton, Stavros C. Bandis This chapter addresses the characterization and quantification of the first 'smaller-scale' set of Physical attributes in detail, and the effect each of them can have on the.

Rock mass strength is extremely important for mine design in order to correctly understand stresses and modes of failure in a rock dge of these stresses increases safety in underground mines by correctly designing to conditions and can also reduce operating are often found in rock masses and therefore it is important to determine their effect on the intact rock.

Barton-Shear strength of rock and rock joints. IJRMMS: Barton-Unsupported underground openings. Stockholm: Barton and Choubey-The shear strength of rock joints. Rock Mechanics: Barton and Hansteen-Very large span openings. Atlanta: Barton and Bandis-Some effects of scale on shear strength of rock joints.

IJRMMS. Characterization is the process of giving numerical values to rock mass features such as joint density, joint roughness, rock type, etc. from observ at ions or measurements made. Laboratory testing of soil and rocks.

Our sophisticated testing programmes are crucial to projects with great sensitivity to soil behaviour - high-rise buildings, bridges, dams, power plants, mines, levees, offshore platforms and tunnels, for example.

Our laboratories test soils when the engineering properties of soil or rock influence the. A proper description of rock obtained in drill cores is a valuable aid to the Engineering Geologist in determining the properties of bedrock with regard to rock slope and structure foundation design. When evaluating rock core, the Engineering Geologist should make note of the following: A.

Recovery, B. RQD, C. Rock type, D. Color. The rock mass characterization and classification is a mean to properly communicate the estimated rock mass characteristics and should not be taken as an alternative to detailed engineering design.Rock mass is a matrix consisting of rock material and rock discontinuities.

Its characterization and classification aim to determine the rock mass characteristics by assigning values to a set of rock parameters. The behavior of intact rock material can be determined by continuum mechanics but rock masses are usually highly fractured.joints under shear loads, including the creation of damage zones.

Discontinuities have an important influence on the deformational behavior of rock systems. The choice of a general criterion to determine the shear strength of rough rock joints is a general problem that has been investigated for many years.