Grosvenor Mine Roof Fall

The roof collapse at the moranbah north underground mine in the bowen basin occurred on january 30 while anglo was relocating the focus of the mining operations known as a longwall move.

Grosvenor mine roof fall.

The incident occurred at lisova coal mine in lviv region western ukraine. Development roadways are mined 3 7m high by 5 4m wide. Two roadways are mined with cross access roads every 125m so the longwall can be adequately operated and maintained. The ability to deter mine roof fall risk has been a long standing goal of safety professionals and could provide the kind of information needed by on site personnel responsible for worker safety to mitigate roof fall injuries.

Safety troubled dartbrook mine set to re open. Grosvenor mine is an underground longwall mine operation. 8 x 2 1m roof bolts and 6 x 1. Typically material stiffnesses fall into the low to moderate modulus ratio range.

Discusses a method to determine the roof fall risk using a qualitative risk analysis technique. Anglo s grosvenor mine had three unexpected roof falls in three months in 2016 with miners narrowly escaping from the first on june 5 shortly after 10pm. The miners were reportedly working at a. Opinion i like many others in and out of the industry have gained a sense of uneasiness from anglo american s latest debacle with the grosvenor mine.

Queensland government mines inspectors are investigating a roof fall incident which occurred in a longwall development panel of anglo american s grosvenor underground coal mine near moranbah on 5 june which is believed to be related to reduced support density. The recent gas explosion that left five people injured two with very serious burns has left me in a state of shock. Underground at anglo american s moranbah north mine in queensland. The roof fall occurred in the early hours of january 30 when the mine was in a longwall move.

The company has notified the queensland mines inspectorate and other mining operations at site are continuing as normal. The roof failed as the senior mine worker was again reading the telltale the queensland government mine record entry report says. Anglo american has confirmed a geotechnical issue at its moranbah north longwall mine in queensland during development works led to a roof fall incident on friday. Anglo american was developing a new section to mine and it was in this area that the incident happened.

Anglo american said in a statement that no one was in the area at the time and no injuries had been incurred. The explosion has now been followed by a spontaneous combustion event in the last week.