point load test for granite rock

  • Field Methods for Characterizing Weak Rock for Engineering

    Field Methods for Characterizing Weak Rock for Engineering PAUL M SANTI Department of Geological Engineering, Colorado School of Mines, Golden, CO 80401 Key Terms: Weak Rock, Weathered Rock, Shales, Field Testing ABSTRACT Many classification and testing methods for shale, slaking rock, weak rock, and weathered rock have been developed

    24/7 Online
  • Rock Slope Engineering

    454 Rock mass strength 100 455 Determination of σ 3max 100 456 Estimation of disturbance factor D 101 46 Rock durability and compressive strength 102 461 Slake durability 102 462 Compressive strength 104 47 Example Problem 41: analysis of direct shear strength test results 106 48 Example Problem 42: analysis of point load test .

    24/7 Online
  • Rock mass properties - rocscience

    ** Point load tests on rocks with a uniaxial compressive strength below 25 MPa are likely to yield highly ambiguous results Table 3: Values of the constant m i for intact rock, by rock group Note that values in parenthesis are estimat

    24/7 Online
  • POINT LOAD TEST SU ROCCIA - YouTube

    Sep 03, 2015· Esecuzione di prova su provini di roccia tipo Point Load con carico Diametrale in accordo alla indicazioni ISRM 1985 La prova eseguita é la prima a seguito del rilascio dell'Autorizzazione all .

    24/7 Online
  • MODULUS OF ELASTICITY DETERMINATION OF ROCKS USING ,

    MODULUS OF ELASTICITY DETERMINATION OF ROCKS USING COMRESSOMETER, STRAIN GAUGE AND LVDT , The point-load test is evaluated for practical applications in engineering geology , The results are .

    24/7 Online
  • Dynamic Load Testing of Pile on Hard Granite - Foundation ,

    I'm looking for some input on dynamic load testing of an end-bearing steel pile in hard granite bedrock Consider a PDA test was carried out on a steel pile acting in end-bearing (~90% EB, loose granular soil above rock) that results in 1,000 tons ultimate capacity at a given set blow-count

    24/7 Online
  • Test method T223 - rmsnswgovau

    The Point Load strength test is based on the indirect tensile strength test or rock core by fracturing a specimen of rock using a machine equipped with conical platens and a load measuring system the test provides a Point Load Strength (I

    24/7 Online
  • webmstedu

    A tunnel is to be driven through a slightly weathered granite with a dominant joint set dipping at 600 against the direction of the drive Index testing and logging of diamond drilled core give typical Point- load strength index values of 8 MPa and average RQD values of 70% The joints, which are slightly rough and slightly weathered

    24/7 Online
  • Laboratory Uniaxial compression test - Rock Mechanics ,

    Sep 28, 2015· Laboratory Uniaxial compression test - Rock Mechanics - Granit - Result: 160MPa

    24/7 Online
  • FIELD ASSESSMENT OF ROCK STRENGTH BY IMPACT LOAD TEST

    A standard chart was developed for interpretation of impact load test through verification study on weathered granite Keywords: Surface hardness, Weathered rock, Schmidt Hammer Test, Impact Load Test 10 Introduction The strength of rock is usually assessed in-situ through surface hardness

    24/7 Online
  • IS 8764: Method of determination of point load strength ,

    In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them

    24/7 Online
  • USING THE POINT LOAD TEST TO DETERMINE THE UNIAXIAL ,

    Point load testing is used to determine rock strength indexes in geotechnical practice The point load test apparatus and procedure enables economical testing of core or lump rock samples in either a field or laboratory setting In order to estimate uniaxial compressive strength, index-to-strength conversion factors are used

    24/7 Online
  • Point Load Test

    The Point Load Test, also known as the Point Load Strength Index Test, is used to calculate the rock strength index of a rock specimen From the rock strength index, other rock parameters, such as the uniaxial compressive strength, can be estimatedThis test is very economical due to the simplicity of the apparatus and the minimal amount of required materials to execute

    24/7 Online
  • 8 STRENGTH OF SOILS AND ROCKS - ,

    The point load strength test may be used to provide an indirect measurement of tensile strength, but it is more commonly used as an index test The point loading is applied to rock core specimens or to irregular rock fragments in a testing machine If P is the failure load and D is the , Stone Mt granite 551 510 0 - 69 Indiana limestone 6 .

    24/7 Online
  • Estimating Unconfined Compressive Strength of ,

    rocks of UAE and the point load strength index I s(50) of these sampl For the sake of fulfillment of this study, , the use of simpler in-situ tests of which the point load test was one of them The code also stated that this test , Estimating Unconfined Compressive Strength of Sedimentary Rocks in United Arab Emirates from Point Load .

    24/7 Online
  • Bearing Capacity of Rocks

    Load at rock surface 08 Load at radius/width of foundation 20 unit Load at 4 times radius/width of 36 foundation unit Load at 10 times radius/width of f d ti it 50 foundation unit Plate Load TestPlate Load Test CoCo ect o acto s ( ot equ ed o )rrection Factors : (Not required for RMR)

    24/7 Online
  • Standard Test Method for Determination of the Point Load ,

    53 This test method is performed to determine the point load strength index of rock specimens and, if required, the point load strength anisotropy index 54 Rock specimens in the form of either core (the diametral and axial tests), cut blocks (the block test), or irregular lumps (the irregular lump test) are tested by application of .

    24/7 Online
  • GCTS

    Provides selection and design of laboratory and in-situ testing apparatus and software ranging from modification and adaptation of existing apparatus to the purchase of ,

    24/7 Online
  • point load tester, point load tester Suppliers and ,

    Alibaba offers 253 point load tester products About 86% of these are Testing Equipment, 3% are Other Test Instruments, and 11% are Other Electronic Measuring Instruments A wide variety of point load tester options are available to you, such as usage, power

    24/7 Online
  • LABORATORY TESTS FOR DETERMINING STRENGTH OF ROCKS

    Following are common laboratory tests for determining strength of rocks: Unconfined compression tests for rocks Triaxial compression test for rocks Splitting tension test for rocks Beam bending test for rocks Ring shear test for rocks This test is similar to that used for soils Here also .

    24/7 Online
  • 8 STRENGTH OF SOILS AND ROCKS - ,

    The point load strength test may be used to provide an indirect measurement of tensile strength, but it is more commonly used as an index test The point loading is applied to rock core specimens or to irregular rock fragments in a testing machine If P is the failure load and D is the , Stone Mt granite 551 510 0 - 69 Indiana limestone 6 .

    24/7 Online
  • Predicting Uniaxial Compressive Strength by Point Load ,

    Mar 30, 2006· Brook, N 1985 The equivalent core diameter method of size and shape correction in point load testing Int J Rock Mech Min Sci Geomech Abstr 22 61 70 CrossRef Google Scholar Cargill, J S, Shakoor, A 1990 Evaluation of empirical methods for measuring the uniaxial compressive strength of rock Int J Rock Mech Min Sci Geomech

    24/7 Online
  • webmstedu

    A tunnel is to be driven through a slightly weathered granite with a dominant joint set dipping at 600 against the direction of the drive Index testing and logging of diamond drilled core give typical Point- load strength index values of 8 MPa and average RQD values of 70% The joints, which are slightly rough and slightly weathered

    24/7 Online
  • HOW TO ESTIMATE STRENGTH AND MODULUS OF ROCK FROM ,

    Aug 15, 2015· Strength and Modulus of Weathered Rock from SPT Values In the weathered rock it is difficult to drive the split sampler to the full specified depth as in soil Hence we may estimate the strength and elastic modulus values of weathered rock by driving the spt apparatus for a ,

    24/7 Online
  • Appendix F Point load test results - rmsnswgovau

    F:\GEOTECHNICS\GEOTECH\GU 02550-02599\GU02580-AA\Fieldwork inc field photos & core photos & point load tests\POINT LOADING\POINT LOAD TESTS ON NEW TEMPLATE\[CBH1xls]Result Sheet (1 of 3) AS 413341 - 1993 Methods of Testing Rocks for Engineering Purposes, Determination of Point Load Strength Index Rock Type Diametral Tests Failure Mode .

    24/7 Online