core drilling Articles
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MAGNETIC DRILL
The magnetic drilling machine is a kind of drilling machine with the electromagnetic base. It can use twist drill bits, annular cutters and do tap threads with matched cutting bits. Its combination of a stable magnetic base and low RPMs help resist or reduce torque forces created by large diameter bits. Portable magnetic drilling machines are used on steel or other magnetic materials, is ...
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MAGNETIC DRILL
The magnetic drill machine bit is a kind of drilling machine with the electromagnetic base. It can use twist drill bits, annular cutters and do tap threads with matched cutting bits. Its combination of a stable magnetic base and low RPMs help resist or reduce torque forces created by large diameter bits. A portable magnetic drilling machine is used on steel or other magnetic materials, is ...
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Development and Potential of Core-Logging Manuals
Characterizing the in-place conditions of rock masses commonly depends upon continuous diamond-core drilling for site investigation or resource characterization. However, because of incomplete or inconsistent core descriptions, potentially valuable information may be lost or unavailable for other users. This situation suggested the potential value of photographic core-logging manuals and ...
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Acoustic fingerprinting for rock identification during drilling
During the process of mining, it is imperative to know the type and properties of the rocks being handled. The current technology for this involves core drilling, and subsequently subjecting the drilled cores to various tests in the laboratory, to identify the rocks and establish their properties. In many cases, obtaining a sample may be cumbersome and/or non–profitable. This paper presents a ...
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Network level GPR surveys in FYR Macedonia 2017 - Case Study
Roadscanners, in joint venture with IGEA Ltd. (Slovenia) and Cestel Ltd. (Slovenia), provided RAMS software, road measurements and consultancy services for Public Enterprise for State Roads (PESR) in Macedonia. Roadscanners surveyed the whole main road network of Macedonia with Road Doctor Survey Van, producing pavement and structure thickness surveys and determining homogenous sections of road ...
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Rock Island adult fishway extension - Case Study
Rock Island Dam is located on the Columbia River, approximately 15 miles south of Wenatchee, WA. The development of a crack in a spillway of Wanapum Dam, downstream of Rock Island Dam necessitated a 25 foot drawdown of the tailrace. This created a significant obstacle for the fish migrating upstream; they would not have access to the original fish ladder. With the arrival of the migrating ...
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Comparison between seismic retrofitting solutions for existing reinforced concrete buildings: a case study
In assessing the safety of existing buildings, the specific actions dedicated to the knowledge of the structure delineate the parameters of the linear or non–linear analysis aimed at identifying the most appropriate structural intervention. In this context, the present paper collects the seismic analysis of a school building in reinforced concrete, illustrating the different stages concerning the ...
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Laver Rock Mechanics Pre-Feasibility Study - Case Study
Project Description Boliden is investigating the Laver low-grade copper deposit for potential future mining. The old Laver deposit was discovered in the 1930s, and was operated between 1938 and 1946. Mining was primarily conducted as small-scale underground mining, but a small open pit was also in operation at that time. The currently investigated deposit is of larger scale and with lower ...
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Coiled Tube Turbodrilling: a proposed technology to optimise drilling deep hard rocks for mineral exploration
The need to drill deep boreholes more efficiently for mineral exploration has raised the attention to investigate the feasibility of recent drilling technologies for such applications. The two principal methods of Reverse Circulation (RC) and diamond core drilling are usually used in combination by mine operators are subjected to certain limitations and inefficiencies. Considering that delivering ...
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Rotary drilling rig assists construction of building pile foundation
With the advancement of industrialization and urbanization, the amount of pile foundation construction is increasing day by day. Rapid development of infrastructure construction, more and more tall, large, and heavy construction projects. In the pile foundation industry, based on the bearing capacity needs of high-rise, super high-rise buildings and large bridges, as well as environmental ...
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Newcastle College achieves results with ELE materials testing equipment
ELE International has supplied the School of Technology at Newcastle College with a complete suite of construction materials testing equipment and environmental instrumentation for use in its new on-site laboratory. The technology is enabling the college to give students invaluable first hand experience of materials testing procedures. The School of Technology teaches Higher National Diplomas in ...
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Comparison of core sampling and visual inspection for assessment of concrete sewer pipe condition
Sewer systems are costly to construct and even more costly to replace, requiring proper asset management. Sewer asset management relies to a large extent on available information. In sewer systems where pipe corrosion is the dominant failure mechanism, visual inspection by closed circuit television (CCTV) and core sampling are among the methods mostly applied to assess sewer pipe condition. ...
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Do you need to rapidly analyse Coltan?
The need for a rapid, simple analysis (carried out by non-laboratory staff) at mines makes a handheld X-ray analyser the ideal analytical technique for analysis of Coltan. The solution Hitachi High-Tech’s X-MET8000 Expert Geo provides fast and accurate on-site analysis of a wide variety of mining sample types, such as drill cores, rocks, cuttings and powders. Results are available in ...
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Field Screening Methods for the Presence of DNAPL, Superfund Site, southern California
Characterizing the lateral and vertical extent at a Dense Non Aqueous Phase Liquid (DNAPL) impacted site can prove to be a challenging task. Field methods employed to verify the presence of DNAPL have included the use of down-hole Ultraviolet Induced Florescence technologies, the application of down-hole detection materials such as dye impregnated fabrics, and the installation of monitor wells ...
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Installing Continuous Multi-Chamber Tubing Using Sonic Drilling
As a geologist, core is the first thing that comes to mind when talking about sonic drilling— continuous, near complete core recovery through almost any lithology. Sand to silt transitions can be logged on a centimeter scale if desired. Geologic contacts can be mapped with accuracy of less than one foot. In an environmental ground water assessment, it seems an awful shame to collect ...
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Using GPR to map rebar and post tension cables case study
Building Renovation - Boston, MA Our client was tasked to install new plumbing lines as part of a building renovation. This task involved drilling cores through each floor of the building. Geoview was contracted to locate the rebar and post tension cables to determine safe coring locations. The geophysical investigation was conducted using Mala and GSSI Structure Scan ground penetrating radar ...
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A multi-parameter analyzer helps a Kentucky treatment plant step up to the plate and meet a new phosphorus limit in its permit
In 2001, the Lexington Fayette Urban County Government West Hickman Creek Wastewater Treatment Plant in Nicholasville, Ky., was starting Phase II of its third upgrade since 1972, when the state imposed a phosphorus limit. Total phosphorus hovered around 6 mg/l, but the permit required 1 mg/l monthly average and 2 mg/l daily maximum from May through October. Engineers from Tetra-Tech, the ...
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Ultrasonic pulse echo tomography for concrete
In this article, we will review an interesting category of ultrasonic test methods for concrete inspection and testing: Ultrasonic Pulse-Echo (UPE) is widely used for the inspection of concrete elements. The method has proven to be extremely useful in determining the thickness of concrete elements with one side access (i.e. tunnel linings, trunk sewer linings, abutment walls), detect ...
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KASTHEW GEOTECH DRILLING SOLUTIONS CO. UGANDA LTD (EAST AFRICA)
KASTHEW GEOTECH Solutions Co. Uganda Ltd. offers Geophysical and Hydro-geological surveys, Water well drilling, coring and Geotechnical with services (works, Consultation, project supervision and contracting) across the East African Region. KASTHEW GEOTECH WORKS / SERVICES;- 1. SITE INVESTIGATIONS (Dam sites, Bridges, Roads, Buildings, Quarries, Mines, Windmills, Towers) (Uganda- east ...
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NMR Investigations in Coastal Ecosystems by Darya Morozov
Coastal ecosystems play an important role in interfacing between marine and terrestrial environments. These systems host complex dynamic processes associated with strong physical gradients between freshwater and saltwater, ground water and surface water, and between high and low permeability soils. Therefore, the structure and stability of coastal environments have a critical impact on ...
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