Showing posts with label blasting. Show all posts
Showing posts with label blasting. Show all posts

Wednesday, July 8, 2009

Mining Prospects Enhanced with ANSYS Engineering Simulation

Comment: Fly Rock, Blasting, environmental impact, the future of blowing up Virginia hillsides for uranium!

Orica USA Simulates Blasting Precise-Delay Timing for Process Improvement Benefits.

SOUTHPOINTE - ANSYS, Inc. (NASDAQ: ANSS), a global innovator of simulation software and technologies designed to optimize product development processes, today announced that its software is being used in the mining industry to develop precise-delay timing for blasting. Orica USA, a division of the world's leading supplier of commercial explosives — Orica Limited — is studying the effects of multiple blastholes on rock fracturing and fragmentation to further its ability to provide advanced Blast-Based Services™ to industry. The effort is shedding light on the complex physics set in motion in the rock blasting process, and the results will be used to improve overall processes — including blast control along with time and cost savings.

Like other industries, mining markets are demanding low-cost products and processes that result in optimal performance and minimal environmental impact. “Because it is more economical to move rock with explosives, the mining industry prefers to move as much through blasting and as little through loading and trucking as possible,” said Dale Preece of the Global Technology Group at Orica USA. “Orica is about industry solutions, about developing integrated approaches to blasting that, less than a decade ago, would have been inconceivable. Our overarching goal is to harvest more materials from fewer well-planned blasts. What we’re currently simulating with explicit dynamics software from ANSYS is precise-delay timing and how resulting forces due to the effects of shock waves, stress waves and the effect of velocity gradients can be leveraged to produce optimal fragmentation.” These capabilities are a critical component of Orica’s Blast Based Services, which is changing the market approach to explosives by allowing the industry to purchase mine-specific solutions tailored for the client’s unique operational and commercial challenges.

Whether applied to mining coal, gold, copper, uranium, nickel or bauxite, precision-delay timing involves multiple blasts that are specifically sited and sequenced. The wrong placement/timing combination can result in muck piles that are difficult for a front loader to efficiently excavate, excessive machine wear, environmentally adverse effects, or an unsafe explosion creating excessive air-blast levels and flyrock.

A blasthole produces stress waves. Multiple blastholes cause these to collide and interact — thereby magnifying, diminishing or canceling out their effects. The physics involved are complex and dependent on the time between detonations. For example, colliding stress waves can become reinforced and reflected, producing significant damage, or stress waves can become depleted in strength due to other more powerful waves. The Orica simulation study used explicit dynamics software from ANSYS to show that blast-induced fracturing and damage lag significantly behind the initial blast’s stress wave, with the most effective delay time occurring when crack propagation and damage are maximized before a subsequent detonation occurs, a span of tens of milliseconds, depending on the rock and blast pattern. “Precise-delay timing enables detonation of adjacent blast holes with the ‘right’ delay time, not simply a guesstimate,” Preece added.

Orica has pioneered the development and implementation of new mining technology for more than a century. The company’s recent engineering simulation efforts are especially timely since rising energy prices have driven up the cost of natural gas, which when converted into ammonia is used to produce a key ingredient in explosives. Orica’s Blast Based Services seek to maximize the performance and efficiency of the blasting process.

“Mining activities remain a time- and cost-intensive business, so accurate planning is critical.


Friday, July 3, 2009

Big Coal Lobby Does Not Want You to See This Powerful New Film

Here's the trailer:





Comment: Canada will be blowing up Virginia for open pit uranium mining, just as the State of Virginia is blowing our Mountains! Virginia and Canada just want the money; with little attention to what is doing to our families, our health, our land, our air, and our water! This is pure evil! Just think about the next time you turn on your lights, a way of life is being destroy for corporate greed and our comfort with diry coal and uranium mining. Demand Virginia to go to true green power, it is possible and it is renewable!

Coal Country Premiere: Big Coal Lobby Does Not Want You to See This Powerful New Film

Jeff BiggersAuthor, The United States of Appalachia
Posted: July 3, 2009 04:52 AM

As a groundbreaking clean energy counterpart to this summer's extraordinary Food, Inc. documentary on the agribusiness, the long-awaited "Coal Country" film on the cradle-to-grave process of generating our coal-fired electricity will be hitting the theatres next week with the big bang of an ammonium nitrate/fuel oil explosive.

And Big Coal ain't happy.

After a year-long campaign of threats and intimidation, the Big Coal lobby plans to have its Friends of Coal sycophants out in force to picket the premiere of the film on July 11, 7pm, at La Belle Theater in the South Charleston Museum in Charleston, West Virginia.

Why is Big Coal so afeared of this documentary film by native Appalachian daughters Mari-Lynn Evans and Phylis Geller, producer and director of three-part award-winning landmark PBS series, "The Appalachians"?

If anything, Coal Country goes out of its way to include the views and voices of the Big Coal lobby and its executives, engineers and miners. This, in fact, might be why Coal Country is so compelling; far from any hackneyed agenda, Coal Country simply allows the coal industry and those affected by its mountaintop removal operations and coal-fired plants to tell their personal stories. The end result is devastating. In a methodical and deliberate fashion, Coal Country brilliantly takes viewers on a rare journey through our nation's coal-fired electricity, from the extraction, processing, transport, and burning of coal.

Once you see the breathtaking footage by cameraman Jordan Freeman, and the unaffected and heart-rending portraits of coal mining families, you will never flick on your light switch again without thinking about Coal Country.

From the git-go, West Virginia governor and coal peddler Joe Manchin declares: "There is no replacement for coal. There might be 30 or 50 or 100 years from now, but there's not today."

A French engineer cheerfully proclaims, "Coal is a wonderful resource. It's too bad it's dirty."

As one coal company executive coldly states, the millions of pounds of ammonium nitrate/fuel oil explosives that rip through the Appalachian mountains and poison the watersheds and air of local communities daily, "might make some people uncomfortable."

Another coal engineer playfully recalls teaching his children to refer to coal-fired plants as "cloud factories" to bring the rain, in the face of some of the highest cancer and heart disease rates in the country, and an American Lung Association study that 24,000 Americans die prematurely from coal-fired plant pollution each year.

One reclamation engineer even breaks into tears, lamenting that his dedication and work are misunderstood. He waves his hand at denuded hills, stripped of the hundreds of species of flora and fauna in one of the most diverse deciduous forests on the American continent, and lauds his planting of a small stand of sycamores. After 30 years of reclamation laws and over 1.5 million acres of clear cut and destroyed hardwood forest, he champions the novelty of his tree-planting efforts: "We're trying them out on some mountaintop removal sites and seeing how they do."

Whew. Big Coal doesn't want you to see this stunning expose because they have been allowed to let the truth slip out of their mouths.

Michael Shnayerson, the author of Coal River, and a contributing editor at Vanity Fair, wonderfully plays the role of an informative commentator throughout the film, delivering his facts in a no-nonsense and quiet manner. Yet, he tells an interviewer: "Nothing prepared me for the visual devastation..." of mountaintop removal.

And this is where Coal Country shines the light on one of the darkest human rights and environmental violations overseen by federal and state regulators in our times. Through a series of moving portraits of coalfield residents, the film chronicles the extraordinary and largely overlooked toll of coal mining on the lives of Appalachian residents.

In a gripping montage, Coal Country shows how those affected by mountaintop removal and coal-fired plants have emerged as the most informed and articulate spokespeople against the ravages of the out-of-state coal companies. In effect, it is the gross indifference and recklessness of Big Coal that turns former coal miners and farmers and shopkeepers into the nation's leading coal and climate change activists--and true American heroes.

One of the film's most illuminating moments takes place during a hearing in West Virginia over the Bush administration's 2002 manipulation of the stream buffer rule, which allowed mining waste to be dumped into mountain streams. While a line of residents and coal company employees take their turn at the microphone, the room silences when a young man in a halting voice steps up and quietly tells the truth:

"Both sides are scared. And we're screaming insults back and forth at each other, and I think we're losing sight of the source of our fears. West Virginia is the poorest state in the country, and southern West Virginia is the poorest part of it. And I think people are scared that they will lose their jobs and be flipping burgers. You look out and that's all you see. Mining and flipping burgers. And I argue that the coal company, that they want it that way. That they want that to be the only options. That is the only way they can get support on the way they treat their workers and treat our community."

In Rock Creek, West Virginia, Goldman Prize winner Judy Bonds recounts the polarization and poisoning of the community's watersheds. She quotes Upton Sinclair: "It is hard to get a man to understand something when his paycheck demands him not to understand."

In eastern Kentucky, Teri Blanton describes the devastated woodlands landscape replanted with foreign grass, "which is fine for Montana, but it's not supposed to look like that in eastern Kentucky."

Former coal miner Chuck Nelson walks viewers through the union-busting tactics of out-of-state coal companies and mountaintop removal operations, and the rarely noticed destruction of real estate values for local coalfield residences due to coal dust and environmental ruin. Mountaintop removal, ultimately, he points out, "is not so cheap for people who have to live under these sites."

In southwestern Virginia, Kathy Selvage describes how she went from too shy to speak in public, to her transformation as one of the most articulate activists and well-researched coal experts. Far from being politically motivated, it comes down to an "assault on our community and way of life." Standing in the face of a pitiful reclamation efforts, she declares, "I grieve over the lost of a mountain."

Farmer Elisa Young in Meigs County, Ohio, tours the parade of coal-fired plants along the Ohio River that have led to the highest cancer and poverty rates in the region. "I'm not a trained activist, I'm not an environmentalist. I just live in a county that is being waled on...As a farmer, I need clean air, clean soil and clean water to run a farm."

With some spectacular photography in the background during a flyover across mountaintop removal sites, Kathy Mattea, the wondrous West Virginia country music star and granddaughter of coal miners, speaks of her support of coal mining families and the region's dilemma.

Mattea nails the issue of mountaintop removal: "It's not against the law," she says, "but what if a law is unjust?"

Coal Country should be required viewing for our nation's elected officials, and the administrators at the Council on Environmental Quality, the EPA and the Department of Interior.

In fact, Coal Country needs to be screened at the White House theatre.

For more information, visit: http://www.sierraclub.org/scp/coalcountry.aspx

or the Coal Country film site: www.coalcountrythemovie.com

Info on the West Virginia premiere is here:
http://thegazz.com/gblogs/wvfilm/2009/06/30/coal-country-new-film-from-mari-lynn-evans-july-11th/

A companion book volume, Coal Country: : Rising Up Against Mountaintop Removal Mining, will be release later this fall by Sierra Club Books, and edited by Shirley Stewart Burns, Mari-Lynn Evans, and Silas House.

http://www.huffingtonpost.com/jeff-biggers/coal-country-premiere-big_b_225341.html

Tuesday, June 30, 2009

MTR: Destroyer of Mountains, Streams, Wildlife, and Communities

Comment: When you read the article, just replace the coal with uranium. We will have the same problems, our water will be ruin, and the air will have small uranium matter from the blast. The lies from the local uranium company about jobs, flying the American flag it is their duty to take out the uranium. We may be forced off our land for corporate monies. We will feel the blast of the open pit uranium mining, 24 hours a day, all week long. The churches in Sheva area will be shaking from the blast and the dust will settle on everyone cars! People wake up; we will be living the same way as our families and the legal Mt. Top Removal!


Published on Monday, June 29, 2009 by CommonDreams.org
MTR: Destroyer of Mountains, Streams, Wildlife, and Communities
The Impacts of Mountaintop Removal Coal Mining on Water Quality in Appalachia.
by Maria Gunnoe

The following was submitted as prepared testimony to the The Senate Committee on Environment and Public Works, Subcommittee on Water and Wildlife on Thursday, June 25, 2009:

My name is Maria Gunnoe. I am 40 years old and I am a life long resident of Boone County in southern West Virginia. My family history there goes back to the 1700's. I know the areas and the people that are being impacted by mountaintop removal very well simply because this is the homeland where generations of our ancestors before me have raised their families and lived their lives. Most of these families have depended on underground coal mining to make a living but we as a culture of people have depended on these mountains to take care of our families. We are gatherers, hunters, gardeners, fishermen, active and retired miners, loving community members, we are stewards of this land and we are now organizers. We are working to protect and preserve the communities, culture and people that we love and hold dear to our hearts

Water Quality Impacts

There is a relatively new method of mining now happening in the coal fields of Appalachia called mountaintop removal coal mining. This method of mining is where the coal companies use nearly 4 million pounds of blasting material a day (in WValone) to blast the coal out of the mountains. Then everything other than the coal (including trees and topsoil) is used to create valley fills in our headwater streams. The artificial streams running off these sites are toxic with selenium.

The energy is temporary energy. You only burn coal one time. The destruction of the land, air, communities and people is permanent. There have been 500 mountains leveled for their coal and energy in the name of homeland security. These 500 mountains were surrounded by communities who depended on the mountain's resources and water for their very existence.

There have now been more than 2000 miles of streams buried by valley fills. People depended on these streams as much as any animals. The cumulative impact of the permits that are being allowed in some incidents are further depopulating and destroying communities and people. The regulatory agencies turn a blind eye to this pollution by continuing to allow the companies to buy more time to come in compliance with the existing laws. Without enforcement these laws are only words on paper.

Local communities truly do not have a voice in the process of these permits.

The DEP will set up what is called an informal conference to inform citizens of what the DEP and coal companies are planning to do and to give community members a chance to comment. These comments are recorded and we are told that they become a part of the permit record. In these hearings the citizens often beg the regulatory agencies to not allow these permits but commonly they approve every permit applied for. The people who live in these communities do not want mountaintop removal mining. Especially near their homes and communities simply because it is destroying everything they and their families before them have worked for.

In the 8 years of the Bush Administration the laws and courts were aligned to destroy any protection that we had for these beautiful and unique places and their people. The clean water act lost its meaning when the Bush Administration changed one word of this law - the definition of fill material. Another important rule, --the buffer zone rule- that protected our streams was done away with on the eve of Christmas 2008. With this rule change the Bush Administration opened us as residents up to nothing but destruction.

There are health impacts too. A study by Dr Michael Hendryx at West Virginia University has proven that there is reason to be concerned about the pollution that the people throughout the coalfields are being exposed to.

This study has not been taken seriously by our state leaders or our state regulatory agencies as a matter of fact it has been ignored. Portions of this study were based on the community of Twilight near where I live. Twilight Surface Mines surrounds the small communities of Lindytown and Twilight and the people who live there either put up with the impacts or leave.

The blasting has been horrible and the community's members concerns are not being heard.

There is near 4 million pounds of blasting material used each day in WV alone.

At one point the department of defense and Department of Environmental Protection allowed the coal company to dispose of old munitions from war {called tetryl its used as an igniter} on the mine site behind my home. It was too dangerous to use in war so they thought they would dispose of it in our community over our people's heads.

We have for many generations depended on the water from these mountains.

Now this water is being polluted forever.

In the case of Big Branch Creek where I live it is now polluted with toxic level of selenium. This is also present in my well water. This was quietly done by the coal company and the regulatory agency permitted it.

The entire aquifer of where I live is now pollution spill way. The loss of timber from our hollow alone will be felt for thousands of years to come. There is no way that the reclaimed land can grow the hardwood forest that the natural land does.

This land is dead. It's impossible to grow a healthy forest on dead polluted land. Reclamation is a pretty word but on the ground it has been proven to be impossible.


Culture

My family before me settled these mountains through the forced removal of the Cherokee known as the trail of tears and most of my neighbors have a similar story.

My grand father told me the story his mother told him of the men in the family dressing as women to allow the women and children to escape this forced removal. The women and children then followed the rivers to their headwaters and settled the area where I now live.

Throughout the past 250 years our families have built these places through determination and love for the place itself.

The mountains here sustained our families by supplying us with an abundance of food and fresh clean water in our wells, springs and streams. Southern West Virginians are fortunate enough to live in the second most bio-diverse region on this planet. This is richness beyond wealth. As residents we recognize our most valuable resources as being our land, water and people not the coal that lies beneath it all. Our people were here before the coal was discovered. Why should we have to leave now in the name of coal?

Some of our current resident's ancestors were awarded their land for military service to this country.

Now this very land being destroyed and the residents don't have the rights to protect it.

Appalachians are the history of this country. We have given all to build the infrastructure that supports this American dream that we all share. We help to supply 48% of this country's energy and the cost of this is never truly calculated. I have heard coal referred to as a cheap and clean energy. This ignores the facts. The facts are that the true cost of coal fired energy has never been calculated.

We must consider the cost of coal from the cradle to the grave. We must consider the cost of mountaintop removal coal mining not only the aquatic life and the wildlife where this coal is being extracted but on the human lives of everywhere it touches.

I have to ask what about the homeland security of the folks that are being forced to sell out to the coal companies in Lindytown W.V?

The people who proudly built this community are being told that they are in the way of coal production and that they must leave their homes of many generations.

The coal company engineers strategically buy out homes and family heir owned land to depopulate communities by making life unbearable. Their air land and water are being destroyed by mountaintop removal there is no way people can continue to live here and be healthy. They are being forced to leave home places of many generations to save their lives.

This alone is personally and emotionally devastating. The boom of "Big Bertha" -- a dragline -- swings over the community of Lindytown. Blasting is frequent and terrifying for residents that are holding out not wanting to sell.

This same "clean coal" that forced an elder woman out of her home who happened to die of a heart attack while she packed her belongings for the first time in 72 years. She too was in the way of production. The people in Lindytown were only free to leave. Why is it as homeland security increases here in DC ours only gets less and less likely to even exist?

In our mountains we have many mountain cemeteries that date back to the beginning of civilization here. We are grounded like our ancestors before us.

These cemeteries are awarded no protection by our regulatory agencies or law enforcement.

We as citizens are expected to register and account for these cemeteries in order to protect them from mining activity and most of the time the coal companies won't allow us into our family cemeteries to do this work. They stop us from visiting our dead by locking us out of our ancestral land in these mountains. I know of many grave yards that were in our mountains that no longer exist. The areas where they were are now gone.

The people here belong no where but here. These folks will thrive in their own environment but taken away from here they will perish as they are not where they belong. The culture of people in West Virginia is a culture of survivalist not environmentalist. We have survived here throughout times of extreme poverty during the rise and fall of the coal markets. We have always had the land to sustain our lives. Now the very reason for our existence as a culture of mountain people is being annihilated for its coal.

Jobs

Boone County falls second in poverty only to McDowell County, WV another leading coal producing county.

This is still the most impoverished area in the US today. If mountaintop removal was about jobs and prosperity where is it? In the 1960's we had 125,000 direct coal mining jobs in the coal industry in WV, but now we have less than 12,000. Ask yourselves is this really about jobs or profit and exploitation? These jobs are temporary jobs at best. The operation behind my home started in 2000. It is now closed down.

These good paying jobs only lasted long enough for the employees to get in debt.

I have watched as coal companies have destroyed one of the most beautiful places in this country by mountaintop removal coal mining. The people who live in these areas are often retired or active UMWA underground miners and their families. The people who work in mountaintop removal most often do not live in the environment that their jobs create. The companies are out of state coal companies and the workers are out of area workers. The companies commonly do not hire local people.

The coal companies will tell all that will listen that they are doing this for future economic development of an impoverished region.

They will say that we don't have any flat land for development. They will tell you that we need this flat land and that our mountains are useless land in their natural state. I have even heard them say that the mountains are in the way of development. There will be no future here for anyone with mountaintop removal. I cannot believe that we as a nation are depending on continuing to blow up mountains to supply energy in this country when the energy we need in this country rises with the sun everyday and blows in each churn of the wind. The ridges of southern WV are wind viable ridges until they are blown up. We cannot continue to allow this to be called clean coal.

Stop Mountaintop Mining

In my own mind I know that mountaintop removal coal mining will stop.

According to USGS we are running out of mineable coal and we are quickly running out of mountains in Southern, WV.

Global warming is very real. We are all just pawns on this chess board called earth. I hope that we can stop mountaintop removal and coals global attack soon enough to preserve some of what is left of one of the most beautiful and ecologically diverse places in this country. The rolling hills of Appalachia are becoming the flat plateaus of the West as I speak.

We have the opportunity to stop the annihilation of mountains and people by mountaintop removal and to change the history of energy in this country. We are at a cross roads.

We must put all special interest aside and follow what we know to be best for all of our future generations. Stop the attack on Appalachia's water supply and the people it sustains.

Thank you again to Senator Cardin and Senator Alexander for standing up for what any fellow human knows to be the right thing.

I would like to extend my tremendous appreciation to Senator Cardin and Senator Alexander for introducing Senate Bill 696 the Appalachian Restoration Act. This Bill if passed could turn back some of the Bush administration changes that is currently allowing coal companies to destroy valuable headwater streams and all that is connected to them. The residents I work with in the Boone County coal fields send their support for this bill as it is in some cases the only hope we have of remaining in our ancestral homes and in our ancestral homelands.

I leave you with photos and a recent article about flooding in the coalfields caused by run off from flattened mountains.

This is what inspired me to get involved in stopping mountaintop removal. There are other organizers just like me being created everyday by this industry. We have no choice but to oppose the practice of filling headwater streams, we live here!

Maria Gunnoe is an organizer with the Ohio Valley Environmental Coalition [1], based in Huntington, W.Va.

Article printed from www.CommonDreams.org

http://www.commondreams.org/view/2009/06/29-1