Browsing Conference Publications by Author "Van der Merwe, JN"

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Causes of falls of roof in South African collieries

Author: Van der Merwe, JN ; Van Vuuren, JJ ; Butcher, R ; Canbulat, I Date: Aug 2001 The main objective of this research was to determine the causes of falls of roof in South African collieries. Sixteen major roof falls were investigated in detail and their causes established. This data was supplemented by mapping a large ... Read more
Design, construction and testing of underground seals

Author: Cook, AP ; Van der Merwe, JN Date: Jan 2000 There has not been any formal research carried out in South Africa into suitable construction methods and materials for underground seals. This literature survey was done to find out how this is handled in other countries, mainly the USA and ... Read more
Develop international links for cooperative research in coal mining with special emphasis on interaction with international experts for developing industry guidelines for the design of pillars in coal mines

Author: Van der Merwe, JN Date: Jul 2001 The original intention of this project was to sponsor a number of non-researchers to attend the workshop. In this particular case, that would have been of little benefit as no definite knowledge in a practically usable form was released. ... Read more
Development of a method to estimate coal pillar loading

Author: Roberts, David P ; Van der Merwe, JN ; Canbulat, I ; Sellers, EJ ; Coetzer, S Date: Sep 2002 The primary goal of this project was to determine the accuracy and validity of the Tributary Area Theory (TAT) and to provide better estimates of pillar load using numerical modelling and other tools. Literature review highlighted that previous ... Read more
Implementation of state-of-art mining knowledge and technologies in design and operation of a safe and efficient deep gold mine stope for 21st Century.

Author: Van der Merwe, JN ; Wojno, L ; Toper, AZ Date: Feb 2001 Several new mining, rock engineering and environmental control technologies aimed at improving safety have been developed in the past decade or so. Since several of these developments have either not been implemented properly or only implemented ... Read more
Safe mining face advance and support installation practice in mechanical miner workings under different geotechnical conditions.

Author: Canbulat, I ; Van der Merwe, JN Date: Mar 2000 This research report includes a detailed literature review on acts and procedures in other major coal producing countries, an underground monitoring programme in various mining districts and numerical modelling. The literature review showed ... Read more
Simple user’s guide on roof support installation and evaluation.

Author: Van der Merwe, JN Date: Nov 1998 This report traces the chain of events from system design through to the installation of roofbolts in the underground coal mines. The mathematical design aspects are covered in the main body of the report while the practical monitoring methods, ... Read more

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Browsing Conference Publications by Author "Van der Merwe, JN"

Browsing Conference Publications by Author "Van der Merwe, JN"

Browse

All of ResearchSpace

This Collection

Quick Links

Legislation and compliance

General Enquiries

Social Connect