New research into the world’s tectonic place stress patterns has led to a better understanding of how the mining and construction sector influences what happens under the earth’s surface.
The newest world stress card, which was released this week, revealed new earthquake -trigger data and information about how stress builds up in the crust of the earth as a result of underground mining activity mapped in the Bowen -Bekken van Queensland.
Mojtaba Rajabi, from the School of Environment from the University of Queensland (UQ), said that the latest update of the map can help to make underground mining and construction activities safer by offering better insights into the stress conditions of the earth.
“Earthquakes do not always come from nature, sometimes we cause them,”
Dr. Rajabi said.
The world stress card has been updated every decade for more than 40 years. ((Liver: University of Queensland))
“Graving, drilling or injecting liquids in the wrong place can give the underground balance and cause a seismic event.
“Insight into stress helps us to prevent this human -made shakes.”
Through the cooperation of UQ with the German GFZ Helmholtz Center for Geosciences, the underground stress patterns of the earth have been mapped in more detail than ever.
Dr. Rajabi said the latest update contained more than 100,000 stress data records.
“This is almost double the data from the previous release we published in 2016,” he said.
The latest update contains more than 100,000 stress data records. ((Reuters: Jameson Wu))
Determining vulnerable areas
The new data from the mining heart of Central Queensland, the Bowen Basin, have found a dramatic rotation in underground stress of more than 50 degrees within 100 kilometers.
Dr. Rajabi said that the mining data, which were analyzed remotely, would lead to the location of vulnerable areas that could possibly cause earthquakes.
The Bowen Basin contains the largest coal reserves in Australia. ((MONKEY))
“The direction of the tectonic power that comes from the plates to the east of Australia changes dramatically, and when these forces interact with local geological conditions, they divert stress in various ways,” he said.
“As a result, the safest directions for drilling and excavation can vary considerably between locations in the same region.
“This gives us a really great guide about ways in which we can dig safer in terms of mining or reserve analysis studies, such as in our gas reconnaissance.”
Safety is of the utmost importance
The Queensland Mining and Energy Union said that the new data would be an essential tool for researchers and industries that work to guarantee the safe use of the grounds of the earth.
Representative of the mining and safety of mining, Jason Hill, said it had potential to help coal mines with strata control – a method used to maintain the stability of the ground.
“Strata control is a most important danger and it has killed many people over the years, so all data or research into the management of Strata is very welcome,” he said.
Jason Hill says that the health and safety of miners is of the utmost importance. ((ABC Tropical North: Liam O’Connell))
“It is vital to understand what we do and to ensure that we do not have our coal miners at unacceptable risk levels, but also the public.“
Mr. Hill said he hoped that mining operators would accept the findings.
“The most important thing now is that the companies actually have a look [the report] And use it to ensure that they reach an acceptable risk level, “he said.
Longwall -Mijnbouw is carried out in the underground coal mine of Grosvenor in Central Queensland. ((Delivered: Anglo American))
The World Stress card has been updated every 40 years, based on data from seismology centers, the energy and resources sector and civil engineering projects around the world.
Dr. Rajabi said that the underground stress patterns of Australia were different from any other continent.
“Very variable, full of twists and turns, and not tailored to the direction that the continent moves,” he said.
“With this [new] Level of detail, we can now better understand how tectonic forces behave not only in regions, but also on a local scale. “
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