Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"core drilling"”.
-
Ordivician limestones in the vicinity of Hoges Store, Giles County, Virginia
… are also high-calcium limestone. Sites for core drilling and possible subsequent mining or quarrying are inferred from study of exposed rocks, by chemical analyses of channel samples of selected zones of high-calcium limestones and by detailed geologic mapping. The report includes columnar …
-
The petrology of the Kielder sulphide bodies and their wall rocks : district of Prieska, N. Cape, South Africa
… and amphibolites. Extensive exploratory core-drilling provided specimens of the massive sulphides, their disseminated pyritic haloes and the enclosing wall rocks in an area of poor outcrop with extensive calcrete and sand cover and, in places,in situ Karoo Super-group Owyka System varved …
-
Model Uncertainties and Joint Inversion in Geophysics
… may include petrophysical data from borehole (core) drilling. All these types of data are then used to decide, for example, where to carry out further drilling, which is an expensive undertaking. The standard way of modelling different types of data uses oversimpli ed likelihood models, which …
-
New Field Testing Procedure For Measuring Residual Stress in Plain Concrete Pavements and Structures
… concrete beams when a blind-depth hole using core drilling is made in the vicinity of an affixed strain gage. Initial findings indicated that the testing procedure partially quantified the residual stresses. Research at the University of Illinois at Urbana-Champaign (UIUC) improved the testing …
-
Critical literature review on concrete crack repairs
… Destructive techniques usually involve core drilling of samples whilst non-destructive techniques include visual inspections, ultrasonic pulse velocity test, acoustic emission, spectral analysis of surface waves, modal analysis, petrographic analysis and infrared thermography. Several …
-
Evaluating The Most Reliable Combination Of Non-Destructive Test Methods For Concrete Uniformity And Relative Compressive Strength.
… because destructive testing approaches such as core drilling are mainly representative of the areas in the concrete where they have been extracted, while NDT testing can be conducted in as many areas on the concrete in order to obtain a true characterisation of the properties of concrete without …
-
Acoustic analysis of rock cutting process for impregnated diamond drilling
… changes with the introduction of diamond-based drilling tools in the last few decades. Impregnated diamond (ID) bits are part of that introduction and their main use is to drill hard and abrasive rock formations. ID core drilling has emerged as the most commonly used technology employed in the …
-
Petrography, chemical composition, and stratigraphic setting of the coals of North-Central Missouri
… the Missouri Geological Survey undertook a core drilling program to learn more about the coals in north-central Missouri. The stratigraphic setting and chemical and petrographic characteristics of 43 complete samples of coal recovered from 13 diamond drill holes in the exploration program in …
-
Service Life Assessment of Harbor Structures - Case studies of chloride ingress into concrete and sheet piling corrosion rates
… south coast. The sampling was done by dry drilling and dust sampling. In these studies the local climate, with a focus on the dominating wind direction, has also been studied. The results from the chloride analysis shows that if a surface on a concrete structure is exposed to open sea …
-
Příprava a realizace stavebně technického průzkumu budovy bývalé radnice v Litomyšli
Bakalářská práce se věnuje přípravě a realizaci stavebně technického průzkumu bývalé budovy radnice v Litomyšli. Teoretická část se zaměřuje na vlastnosti zdiva, vlastnosti dřeva a metody potřebné pro jejich stanovení. Praktická část se věnuje návrhu, provedení a vyhodnocení stavebně technického …