In this issue of DrillSafe, we focus on the second part of Drill Rod Safety, Wire Rope as well as Legal Appointments and Liability according to the Mine Health and Safety Act.
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Focus Area 1: Drill Rod safety
Drill Rod DEPTH RATING AND THREAD DESIGN
In the second part of this series, we develop a very interesting relationship to work out how deep we can drill with steel drill rods. We also look at the development of wireline drill rods through the years.
What is the link between yield strength and depth rating? Find out more about this interesting relationship here.
For a thread to fail, it is necessary that the flanks of the threads are deformed to such an extent that the box and pin are able to move apart.
The first wireline drill rod thread was developed in the 1950's. Find out what has changed since then and what these developments mean for your drilling operation.
FOCUS AREA 2: WIRE ROPE
CONSTRUCTION AND SPECIFICATIONS
In the first part of this series we examine the design, construction and properties of wire ropes as well as discuss how these aspects affect wire rope selection.
Wire ropes are sometimes poorly understood and so in this article we explore wire rope design and construction.
An intriguing look into how industrial wire rope is made.
Wire rope selection is closely related to the properties of the rope. In this article we discuss the most important properties of a wire rope.
Wire ropes are designed to run through sheaves but sheave wheel diameter has a significant impact on the strength efficiency of the rope.
What impact does a termination have on the safe working load of the wire rope?
Safety News from our Contributors
The Mine Health and Safety Act makes provision for the appointment of people to assist in carrying out the responsibilities of the employer to ensure health and safety. In this article, we discuss the legal implications and liability of the people in various employment roles.
Chamber condemns mines’ deteriorating safety performance
Mining Weekly 2017-11-06
South Africa: R60-Billion Held for Mines that Are Never Closed
Pulitzer Centre 2017-06-15