Rock characterization testing and monitoring, isrm suggested method. Fairhurst, ce, hudson, ja 2000 draft isrm suggested method for the complete stressstrain curve for intact rock in uniaxial compression. Geotechnical engineering books foundation engineering. Bellow you can find a complete list of the suggested methods contained in the blue book. Iisrm suggested methods for rock stress estimation part 2. Highlights highlight the usefulness of stressdriven rock failures in estimating rock stress. Crack front geometry and stress intensity factor on. Hawkes, suggested methods for determining tensile strength of rock materials, in the complete isrm suggested methods for rock characterization, testing and monitoring.
I was amazed at the ease with which i could adjust my standard items, stored within the benchmark item library, to match the production rates. Isrm suggested method for steprate injection method for fracture insitu properties simfip. Estimation of insitu stress orientation and magnitude is necessary for assessing the excavation risks for pahangselangor raw water transfer psrwt tunnel project. Consideration of the strength of fractured rock masses is, however, beyond the scope of these suggested methods. For grade ii, discoloration along discontinuity planes is clearly visible, and the. Pdf isrm suggested methods for rock stress estimation. A related modification for estimating the deformation modulus of rock masses was made by hoek and diederichs 2006. Through the isrm in the isrm blue book sm published between 1974 and 2006. The research was recognised by the testing commission of the isrm international society for rock mechanics and the ccnbd method was adopted as an isrm international suggested method for the measurement of mode i rock fracture toughness. Astminternational standards and international society for rock mechanics isrm suggested methods are voluntary consensus standards that have replaced or are used in lieu of existing government standards or where no government standard exists. Designing of a stable overburden disposal slope is vital in large opencast coal mines.
Draft isrm suggested method for the complete stressstrain curve for intact rock in uniaxial compression, international journal of rock mechanics and mining sciences. If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. International society for rock mechanics by pergamon press, 1981 science 211 pages. The calculated gsi is and the hoek brown constants are listed in table 5. These standards would be acceptable and comply with federal law, omb a119. Mar 24, 2015 there are many geophysical methods that allow for the measurement of shear wave velocity in rock materials. Geological engineering program, university of wisconsin, madison. Numerical analysis of flattened brazilian disc test based on the cusp catastrophe theory. Isrm suggested methods for rock stress estimation oil well. Utilization of the brazilian test for estimating the uniaxial. Because of the lack of suitable alternatives, the criterion has been applied to a variety of rock masses. There are many geophysical methods that allow for the measurement of shear wave velocity in rock materials. Establishing a model for the in situ stress at a given site article pdf available in rock mechanics and rock engineering 456.
However, it must be pointed out that these are only suggestions based on papers published in the international journal for rock mechanics. Isrm suggested methods for rock stress estimationpart 5. Geotechnical engineering books foundation engineering, soil. The isrm suggested methods for rock characterization. Numerical analysis of flattened brazilian disc test based. However, it must be pointed out that these are only. Then, the relation between the crack length and the stress intensity factor is obtained precisely. Jun 23, 2012 isrm suggested methods for rock stress estimationpart 5. Lt using the results of in situ measurement and test has been developed. A complete list of all suggested methods is provided here. Application of in situ stress estimation methods in wellbore stability analysis under isotropic and anisotropic conditions. Importance of anisotropy when estimating and measuring in situ stresses in rock.
Uniaxial compressive strength, deformability, unit weight and triaxial compressive strength tests were conducted in accordance with the isrm suggested methods isrm, 1981. Spoil generated during extraction of coal which is dumped externally requires larger land to remain stable and also poses problems to surrounding environment due to limited land availability. Establishing a model for the in situ stress at a given. Scour at bridge foundations on rock presents a methodology for estimating the time rate of scour and the design scour depth for a bridge founded on rock. Genesis and definition of rock mass designation rqd in 1964 and 1965, whilst working on sites in granite at the nevada test site for nuclear bombs, deere and coworkers see deere 1968 and deere and deere 1989 devised an index, rqd, to differentiate between relatively good quality rock and poor rock when logging rock core, as an alternative to just judging quality on the basis of core recovery. Correlation of joint roughness coefficient jrc and peak. Engineers and geologists must take this effect into account to predict failure in slope faces and tunnel excavations. Isrm suggested methods for rock stress estimation part 3. Isrm suggested method for measuring rock mass displacement using a sliding micrometer.
My research interests cover many areas including geostatistics, mineral resource evaluation, risk assessment of mining project, optimisation of mining operations, rock fracture mechanics, stochastic rock fracture modelling, modelling of fluid flow, heat transfer and chemical reactions in fractured. Isrm members can download all the suggested methods after login in this page. Dec 27, 20 the discontinuities in tuffites have close spacing, medium to high persistence, moderate width, and roughplanar and weathered character. The importance of v s to soil and rock characterization makes simultaneous measurement in both materials of interest.
Advances in materials science and engineering 2015 article. This work is supported by the national basic research program of china 973. A finite element approach of stability analysis of internal dump slope in wardha valley coal field, india, maharashtra. Soil sampling methods characterization and monitoring a. Strategy for rock stress estimation, international journal of rock mechanics and mining sciences, vol. Trbs national cooperative highway research program nchrp report 717. Also, representative rock samples collected during field investigations for the determination of physicomechanical properties in the laboratory as per the methods suggested by isrm 18. In this post, i will take you through the process of calculating the hoekbrown failure criteria in. Research article by mathematical problems in engineering. In this post, i will take you through the process of calculating the hoekbrown failure criteria in python. Isrm suggested methods are explanations of recommended procedures to follow in the various aspects of rock characterisation, testing and monitoring. Slope stability assessment of saptashrungi gad temple. Analytical investigation for in situ stress measurement with. Hudson isrm turkish national group, ankara, turkey, 2007, pp.
Whenever possible, the procedures described in the international society for rock mechanics isrm suggested methods for rock stress determinationsare used to evaluate the measurements. This chapter presents the most recent version of the hoekbrown criterion in a form that. Rock mechanics and rock engineering, nov 2012 ove stephansson, arno zang. References scour at bridge foundations on rock the. The tests are intended to measure strength of cylindrical rock specimens as a function of confining pressure. Table 6 selected equations for estimating deformation modulus of rock mass emass author equations equation. I have over twenty years of experience working for mining academic institutions and the industry. From these analyses, the geometry of the critical crack front at the maximum load as well as the minimum normalized stress intensity factor is determined for estimating the modei fracture toughness of rock specimens for ccnscb test. Two common assumptions are that 1 lateral elastic strains are zero in all formations, or 2the rock is at a yield or failure limit. Grade i rock material is fresh, with no discoloration being observed. Many methods make restrictive assumptions about the mechanical state of the rocks. Isrm suggested methods for borehole geophysics in rock.
Suggested methods for deformability determination using a large flat jack technique, 1986 april 34. Estimation of insitu stress profiles from well logs. Prediction of the shear failure of opened rock fractures. Here you can explore geotechnical engineering books foundation engineering, soil mechanics, rock mechanics, geology tunneling etc. The isrm suggested methods for rock characterization, testing. Suggested methods prepared by the commission on testing methods. The complete isrm suggested methods for rock characterization, testing and monitoring 19742006. A simple guide to calculate the hoekbrown failure criteria. Original research, new developments and case studies in rock mechanics and. A potential advantage of threedimensional failure criteria based on the hoekbrown criterion is that, theoretically, it would be possible to adopt values of mb, s and a that reflect the properties of a fractured rock mass. Buy the isrm suggested methods for rock characterization, testing and monitoring. Chinese journal of rock mechanics and engineering 196. Verify the deduced rock stress by tectonic setting, tested insitu stress, etc.
The influence of test specimen geometry on the laboratory. Haimson and others published isrm suggested methods for rock stress estimation part 3. Isrm commissions mtgs preservation of ancient sites. If you do not see its contents the file may be temporarily unavailable at the journal website or you do not have a. In 2003, the international society for rock mechanics isrm published some suggested methods for determining rock stress 912. Estimation of fracture stiffness, in situ stresses, and. Isrm suggested methods for rock stress estimation free. Isrm suggested method isrm suggested methods for rock stress estimationpart 5. Pdf isrm suggested methods for rock stress estimation part. The isrm suggested methods are very important documents in this regard, and a draft suggested method exists for the determination of the complete stressstrain curve for intact rock in uniaxial compression.
The isrm suggested methods for rock characterization, testing and monitoring. Rock masses usually reduces the strength of the intact rock due to the presence of discontinuities. Because of the lack of suitable alternatives, the criterion has been applied to a variety of rock masses including very poor quality rocks, which could almost be. In the specific area of borehole geophysics in rock engineering, this need has long been recognized by the isrm who wrote and published the following suggested methods for borehole geophysics. Evaluation and prediction of flyrock resulting from blasting.
Cerchar abrasivity index cai and its relation to strength. Isrm suggested methods for rock stress estimation part 5. The complete isrm suggested methods for rock characterization, testing and monitoring. Utilization of the brazilian test for estimating the. Note that should be the shear strength of an opened rock fracture, which is a multiplication of transitional stress and tangent of the basic friction angle of the rock surface 3. Ulusay, the isrm suggested methods for rock characterization, testing and. Crack front geometry and stress intensity factor on cracked. Read isrm suggested methods for rock stress estimationpart 3. Isrm members can download all suggested methods from this page.
Jul 17, 2018 geotechnical engineering books foundation engineering, soil mechanics, rock mechanics, geology tunneling etc. A detail scan line survey revealed number of discontinuities at different locations. Several in situ test methods for v s in rock, or soil, have been highlighted. Below you can download three pdfs, which have been prepared by professor resat ulusay, the president of the isrm s commission on testing methods. Geotechnical engineering books foundation engineering, soil mechanics, rock mechanics, geology tunneling etc. Improving measurement accuracy of brazilian tensile. The isrm suggested methods downloaded are for the personal use of isrm members. Strategy for rock stress estimation article pdf available in international journal of rock mechanics and mining sciences 40. Suggested methods for rock anchorage testing, 1985 april 33. A survey of computer programs in rock mechanics research and. The method specifies the required geometry of specimens and the required testing procedures. In the geothermal energy industry, information on fracture stiffness, in situ stresses, and elastic parameters of naturally fractured geo thermal reservoirs is vital for safe massive extraction of fluids, wellbore stability analysis, hydraulic fracturing design, and coupled geomechanicsreservoir simulation.
Draft isrm suggested method for the complete stressstrain curve for intact rock in uniaxial compression. A suggested visual approach for estimating hoekbrown mi for. Here you can explore geotechnical engineering books foundation engineering, soil mechanics, rock mechanics, geology. Practical estimates of rock mass strength practical estimates of rock mass strength hoek, e brown, e. Suggested methods for rock stress determination, 1987 february 35. Oct 01, 2003 read isrm suggested methods for rock stress estimationpart 3.
Documentation of the rock stress from rock spallings intensity and veins. Read, highlight, and take notes, across web, tablet, and phone. Pdf isrm suggested methods for rock stress estimation part 3. A method for estimating rock mass longterm strength. Establishing a model for the in situ stress at a given site ove stephansson arno zang published online. Welcome to the civilax virtual library, the most comprehensive online civil engineering resource collection in the world. The report also includes design and construction guidelines for application of the methodology. Improving measurement accuracy of brazilian tensile strength. Application of in situ stress estimation methods in. Below you can download three pdfs, which have been prepared by professor resat ulusay, the president of the isrms commission on testing methods. Each can be obtained from the isrm secretariat purchase form.
Geological engineering program, university of wisconsin, madison, wisconsin. Brief description of methods applied by sintef practical. Suggested methods for rock stress estimation part 1. Brief description of methods applied by sintef practical applications lists of clients updated dec. The blue book can be purchased from the secretariat or from the turkish national group. Correlation of joint roughness coefficient jrc and peak friction. Associate professor chaoshui xu researcher profiles.
A damage model for modeling the complete stressstrain. Strategy for rock stress estimation, international journal of rock. Evaluation and prediction of flyrock resulting from. Engineering and manufacturing mathematics numerical analysis mechanical properties. 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. Everyday low prices and free delivery on eligible orders.
Evaluation and prediction of flyrock resulting from blasting operations using empirical and computational methods. Estimation of insitu stress profiles from well logs onepetro. In order to characterize the rock masses along the tunnel axis, rock mass classification systems such as rock mass rating rmr, q. A complete list of all suggested methods is provided here isrm.
Based on this, stress measurement with rsr method is proposed. In the geothermal energy industry, information on fracture stiffness, in situ stresses, and elastic parameters of naturally fractured geo thermal reservoirs is vital for safe massive extraction of fluids, wellbore stability analysis, hydraulic fracturing design, and. Three different types of triaxial compression test are described. A great tool for rail estimates i recently used benchmark estimating software on complex rail project in newcastle, nsw australia. Establishing a model for the in situ stress at a given site ove stephansson arno zang 1 introduction this contribution relates to the updated suggested method for rock stress estimation and concerns the final rock stress model frsm of a site or an area. The weathering characterization and classification was based on the recommendations of the international society for rock mechanics, isrm, as outlined in isrm 1981. The issue of morphology and topography on estimating in situ stress is of particular interest in mountainous area, near valley slopes and at the top of high mountains and for mining projects, e. Threedimensional failure criteria based on the hoekbrown.
The shear strength of opened rock fractures is where. Isrm suggested methods for rock stress estimationpart 3. Hudson and others published isrm suggested methods for rock stress estimation part 1. The isrm has published suggested methods for estimating rock stress 678910 for the basic principles of overcoring and hydraulic fracturing. Establishing a model for the in situ stress at a given site. Chen, zy 2010 standardization and digitization for isrm suggested methods of. Suggested methods for large scale sampling and triaxial testing of jointed rock,1989 october 32.
Pdf isrm suggested methods for rock stress estimation part 1. An improved method for estimating in situ stress in an elastic rock. Propose a method for recognizing macroscale rock stress based on rock spalling. Isrm suggested methods for rock stress estimation part 1. International journal of rock mechanics and mining sciences. Ucs is also considered for a variety of issues encountered during blasting, excavation, and support systems in engineering applications hoek, 1977. A novel test procedure in which the cai tests was conducted on samples in a triaxial cell shows the stress dependency for various rock types by higher cai values upon con. Aug 31, 2014 the isrm suggested methods for rock characterization, testing and monitoring.
235 1262 550 672 1147 626 1545 434 1632 1319 1586 103 1533 416 104 423 1040 1350 1175 459 1150 1685 528 1526 573 219 1370 941 967 425 757 657 333 974 230 1290 1078