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	<title>Pro-Tec Equipment News</title>
	
	<link>http://blog.pro-tecequipment.com</link>
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		<title>Mod Explosion</title>
		<link>http://feedproxy.google.com/~r/Pro-tecEquipmentNews/~3/QxSaGV1zbPo/mod-explosion</link>
		<comments>http://blog.pro-tecequipment.com/aluminum-trench-shields/2010/mod-explosion#comments</comments>
		<pubDate>Fri, 04 Jun 2010 13:43:27 +0000</pubDate>
		<dc:creator>Joe Cook</dc:creator>
				<category><![CDATA[Aluminum Trench Shields]]></category>
		<category><![CDATA[Mod Series]]></category>
		<category><![CDATA[Pro-Tec]]></category>

		<guid isPermaLink="false">http://blog.pro-tecequipment.com/?p=143</guid>
		<description><![CDATA[Pro-Tec’s Mod-Series is better than the competition for one main reason.  Our corner posts last longer than our competitors...]]></description>
			<content:encoded><![CDATA[<p>Despite the current challenges to the economy, Pro-Tec’s Mod Series (Modular Aluminum Trench Shields) have never been more in demand than now.  Even when manufacturing for steel products slowed, we had a good backlog of aluminum orders, particularly Mod Series.</p>
<p>Pro-Tec’s rental division has struggled to keep up with the demand.  We have always had a consistent need for rentals involving spot repairs seem to have evolved into large, multiple shield orders.<span id="more-143"></span></p>
<p>The underground construction industry’s gradual shift toward emphasizing trenchless applications has made Mod Series a necessary item for contractors.  The need for excavations to have a more than temporary shoring system for their excavations has driven the demand.  The flexibility offered by our Mod Series is favored for the lining, bursting, oil / gas pipeline and utility contractors.</p>
<p>OSHA enforcement has played a large part in this Mod explosion as well.  MI-OSHA has added four new officers this year concentrating on construction projects (that brings our governor’s job creation total in her reign to four).</p>
<p>“We’ll only be in the hole for a few minutes.”   This was the famous excuse used by contractors when presented with Mod-Series in the past.  That phrase can’t be uttered any more with a straight face.</p>
<p>Pro-Tec’s Mod-Series is better than the competition for one main reason.  Our corner posts last longer than our competitors because they are made with more material and the channels connecting the panel and post are enclosed.  Our competitors lack this feature. When compared in the field, there is no doubt Mod is the better value.  When a post is damaged, it is most likely no good or at best cut down significantly.  Why continue to replace their corner posts when you can own a Pro-Tec’s Mod Series.</p>
<p>Stacking Units, Cutouts, Push pads, and Bolt-on Knife Edges, etc. are all excellent accessories that can be added to a 2, 3 or 4 sided Mod Series and ATS Shields.</p>
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		<item>
		<title>Back to Basics</title>
		<link>http://feedproxy.google.com/~r/Pro-tecEquipmentNews/~3/X_v0P3L5zmo/back-to-basics</link>
		<comments>http://blog.pro-tecequipment.com/slide-rail-system/2010/back-to-basics#comments</comments>
		<pubDate>Mon, 24 May 2010 14:23:23 +0000</pubDate>
		<dc:creator>Thomas Marciniak</dc:creator>
				<category><![CDATA[Pro-Tec]]></category>
		<category><![CDATA[Slide Rail System]]></category>
		<category><![CDATA[Steel Trench Shields]]></category>

		<guid isPermaLink="false">http://blog.pro-tecequipment.com/?p=141</guid>
		<description><![CDATA[However, the more and more a person deals with the advanced classes, some of the basics start to fade away]]></description>
			<content:encoded><![CDATA[<p>Going “back to basics” is a simple sounding concept, but it gets harder to do the more a person is indoctrinated into a system.  This is even true when it comes to businesses, and especially true when it comes to Pro-Tec Equipment.<br />
With the core of Pro-Tec’s staff having around 10 years of time on the job, more or less, we have been able to go through the whole learning curve.  Starting with the basics (how to size a trench shield) and going all the way to the advanced classes (custom shields and Slide Rail Systems).  However, the more and more a person deals with the advanced classes, some of the basics start to fade away.  Once you’ve mastered a calculator, it’s tough to do division, long hand, with a paper and pencil.<span id="more-141"></span></p>
<p>There are times that it seems people get carried away trying to solve a contractor’s trench shoring and shielding problem with an answer that is more complex than it needs.  Sometimes, an 8’ tall x 16’ long trench shield with end panels is the best, most basic way to go, instead of a 4-sided Slide Rail System, sometimes however, it is not.  It seems like an easy thought, go with <strong><em>this</em></strong> over <strong><em>that</em></strong>, for the most part, it can\is that easy.</p>
<p>So what are the basics for trench shields?  Making sure the correct pins go with the shields to the jobsites.  Having the correct stacking gear, in the correct locations.  Communicating to customers when and where their orders are.  There are more, but I think you get the point.  The basics are the simple things.  The simple things are the things the make the difference between a one time customer and a repeat happy customer.  Going back to basics is more that just a cute four word phrase; it is a constant high wire act that has to be performed daily in order for companies to be profitable and survive.</p>
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		<title>Workers’ Memorial Day</title>
		<link>http://feedproxy.google.com/~r/Pro-tecEquipmentNews/~3/Cn1fKpjYPGk/workers-memorial-day</link>
		<comments>http://blog.pro-tecequipment.com/pro-tec/2010/workers-memorial-day#comments</comments>
		<pubDate>Wed, 28 Apr 2010 16:14:20 +0000</pubDate>
		<dc:creator>Thomas Marciniak</dc:creator>
				<category><![CDATA[Pro-Tec]]></category>

		<guid isPermaLink="false">http://blog.pro-tecequipment.com/?p=139</guid>
		<description><![CDATA[Every year, more than 5,000 American workers and approximately 1,000 Canadian workers die in work-related incidents. ]]></description>
			<content:encoded><![CDATA[<div>
<div>
<h3><span style="font-weight: normal; font-size: 13px;">Every year, more than 5,000 American workers and approximately 1,000 Canadian  workers die in work-related incidents. On April 28, the International Day of  Mourning, pay your respects to your fellow workers who were injured or killed on  the job.</span></h3>
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<div id="intelliTXT">
<p>In the U.S., an average of 16 workers die each day from injuries received at  work, and 134 are estimated to die from work-related diseases. And approximately  9,000 American workers are treated in emergency wards each day because of  occupational injuries.<span id="more-139"></span></p>
<p>The International Day of Mourning is set aside not only to commemorate the  dead, ill and injured, but also to raise awareness of the importance of  occupational health and safety and its role in preventing these needless  tragedies.</p>
<p>The day of remembrance was initially launched by the Canadian Labour Congress  in 1984 and officially established as the National Day of Mourning in 1990 after  the Canadian government passed the Workers&#8217; Mourning Day Act.</p>
<p>In the U.S., the AFL-CIO, America&#8217;s union movement, adopted April 28 as  Workers&#8217; Memorial Day. And in 1996, the International Confederation of Free  Trade organized the first International Day of Mourning, which prompted candle  lighting ceremonies to protest unsafe work practices.</p>
<p>Today, more than 85 countries worldwide recognize this important  day.</p>
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		<title>We’re waiting</title>
		<link>http://feedproxy.google.com/~r/Pro-tecEquipmentNews/~3/mmVJ6wdsrsc/were-waiting</link>
		<comments>http://blog.pro-tecequipment.com/pro-tec/2010/were-waiting#comments</comments>
		<pubDate>Tue, 16 Feb 2010 14:16:44 +0000</pubDate>
		<dc:creator>Ron Wey</dc:creator>
				<category><![CDATA[Pro-Tec]]></category>

		<guid isPermaLink="false">http://blog.pro-tecequipment.com/?p=137</guid>
		<description><![CDATA[Is anyone out there getting a clear reading from your crystal ball?  Like you, I listen carefully to the news, read the papers, bounce around on the internet and listen to all the talking heads
on the radio.]]></description>
			<content:encoded><![CDATA[<p>About a year ago someone decided that it would be a good idea to go ice-skating.  Now I’m pretty competitive when it comes to any type of athletic endeavor, but no one has ever asked me to play hockey.  Truth be known, I have a difficult time just getting the skates on.  Come to think of it I’m equally pathetic at bowling. (I’m thinking of giving curling a try.)  Anyway, while we were standing in line to rent our ice skates I overheard a father and his 2 young sons. The father said, “Son, you just have to wait another minute.”  To which the son replied, “But Dad, we’re waiting as fast as we can.”</p>
<p>Many of us are waiting for the economy to turn around and like the little boy we are getting pretty anxious.  Will 2010 be different, business wise, than 2009?  Is anyone out there getting a clear reading from your crystal ball?  Like you, I listen carefully to the news, read the papers, bounce around on the internet and listen to all the talking heads on the radio.  This is what I’m hearing “the unemployment calculator indexes for the 3<sup>rd</sup> quarter commodities market dropped .032 points for the 4<sup>th</sup> Tuesday in a row amidst a rapid gain in the yen which sparked a rally on the NASDAQ preferred futures….”  What does it all mean?   I’m pretty sure we are all in the same boat, waiting to hear some good news.  My non-audited, unscientific poll results are coming in and people are telling me that things are a “little” better.  A little better sounds pretty good right now.  In some circles, patience is seen as a virtue.  I tend to think of patience as a way of life.</p>
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		<title>2009 Year in Review</title>
		<link>http://feedproxy.google.com/~r/Pro-tecEquipmentNews/~3/hTOyrfEicgI/2009-year-in-review</link>
		<comments>http://blog.pro-tecequipment.com/aluminum-trench-shields/2010/2009-year-in-review#comments</comments>
		<pubDate>Mon, 04 Jan 2010 19:45:24 +0000</pubDate>
		<dc:creator>Thomas Marciniak</dc:creator>
				<category><![CDATA[Aluminum Trench Shields]]></category>
		<category><![CDATA[Pro-Tec]]></category>

		<guid isPermaLink="false">http://blog.pro-tecequipment.com/?p=131</guid>
		<description><![CDATA[However, 2009 hasn’t be a lost year, good  things have happened for Pro-Tec Equipment this year.   Through our innovation program,  we have released the 7.5’ tall Aluminum Trench Shield line, saving, in some cases more that $500 in trucking.]]></description>
			<content:encoded><![CDATA[<p>Well, I wish I could say that 2009 was a year of records and good times, but that would be lying, and I don’t want my mom to wash my mouth out with soap.  So I will just write exactly what 2009 was.  2009 will go down as one of the toughest years in the history of Pro-Tec Equipment.</p>
<p>We could mostly likely classify 2009 as the  year of extremes.  We have gone from being extremely slow, to extremely busy, back to extremely slow.   President Obama calls for hope, and that is really what the underground construction industry has boiled down to, hope.</p>
<p>However, 2009 hasn’t be a lost year, good things have happened for Pro-Tec Equipment this year.   Through our innovation program,  we have released the 7.5’ tall Aluminum Trench Shield line, saving, in some cases more that $500 in trucking.   2009 also will go down as the year that Pro-Tec Equipment went social, networking that is.  With the launch of a Facebook and twitter page, Pro-Tec Equipment has set itself up to have the most open communication in the industry.</p>
<p>So what does 2010 hold for us?  Well, there is the Winter Olympics in Vancouver. BC (Russia vs.  Canada in hockey, what a match that will be), the World Cup in Brazil (could the USA Team make it to the semi’s) and probably the most important item, the release of the bulk of the “Stimulus” money from the U.S. government.  Here’s to putting 2009 in the books and starting 2010 with a bang!</p>
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		<title>If you have it… they will come</title>
		<link>http://feedproxy.google.com/~r/Pro-tecEquipmentNews/~3/FAe_J7VgFdo/if-you-have-it%e2%80%a6-they-will-come</link>
		<comments>http://blog.pro-tecequipment.com/steel-trench-shields/2009/if-you-have-it%e2%80%a6-they-will-come#comments</comments>
		<pubDate>Mon, 28 Dec 2009 15:32:47 +0000</pubDate>
		<dc:creator>Joe Cook</dc:creator>
				<category><![CDATA[Steel Trench Shields]]></category>

		<guid isPermaLink="false">http://blog.pro-tecequipment.com/?p=124</guid>
		<description><![CDATA[It is much easier and more profitable to pluck something out of the fleet than it is to worry about logistics, availability and freight. ]]></description>
			<content:encoded><![CDATA[<p>As a manufacturer and a rental house, Pro-Tec Equipment has the luxury of sometimes instantly adding new equipment to our rental fleet.  We are able to solve problems quickly that a normal shoring rental operation may not.  Of course with this blessing comes a curse.  There will come a time when we don’t have most of our eighteen 28’ or longer trench shields rented.  When that happens, there will be a hungry, smelly, 800 lb gorilla in the controller’s office wondering how such a thing happened.</p>
<p>In Michigan, we have faced the struggles that the rest of the nation is now experiencing for the better part of this decade.  <span id="more-124"></span>During Michigan’s “One State Recession”, our customers went from a significant interest in purchasing to overwhelming interest in renal only.  Sales to end users in Michigan were few and far between simply because there wasn’t a backlog of work to count on.  Our rental numbers increased year after year and profitability went up.  During this “One State Recession”, we added to our rental fleet.  We needed to.</p>
<p>Yes, our rental additions were scrutinized, but in the end, we decided that it was too important to service the customers that remained busy.  We still have some equipment deficiencies in some areas.  There has been too many times where we gave our customers what we had instead of what they truly needed.  Overall though, we have unofficially taken the attitude of “if we have it, they will come”.  It is much easier and more profitable to pluck something out of the fleet than it is to worry about logistics, availability and freight.</p>
<p>The rest of the country will <strong><em>not</em></strong><strong> </strong>completely sink to the depths that Michigan has had to endure.  We know that the rental market will stabilize.  Service is the backbone of this business.  A well fleeted company will be able to service their customers better.  It may be a good time to add to rental fleet right now and when you do, Pro-Tec Equipment is the obvious choice to do it with.  So obvious, we are almost like an irritable, mistreated 800 lb gorilla.</p>
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		<title>Protected: The Winter of Our Discontent</title>
		<link>http://feedproxy.google.com/~r/Pro-tecEquipmentNews/~3/g-9LC9bRI1Y/the-winter-of-our-discontent</link>
		<comments>http://blog.pro-tecequipment.com/pro-tec/2009/the-winter-of-our-discontent#comments</comments>
		<pubDate>Fri, 20 Nov 2009 14:47:21 +0000</pubDate>
		<dc:creator>Ron Wey</dc:creator>
				<category><![CDATA[Pro-Tec]]></category>

		<guid isPermaLink="false">http://blog.pro-tecequipment.com/?p=119</guid>
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		<title>Necessity is the mother of invention</title>
		<link>http://feedproxy.google.com/~r/Pro-tecEquipmentNews/~3/YtOOh0e9Hgs/necessity-is-the-mother-of-invention</link>
		<comments>http://blog.pro-tecequipment.com/pro-tec/2009/necessity-is-the-mother-of-invention#comments</comments>
		<pubDate>Thu, 22 Oct 2009 18:52:34 +0000</pubDate>
		<dc:creator>Ron Wey</dc:creator>
				<category><![CDATA[Pro-Tec]]></category>

		<guid isPermaLink="false">http://blog.pro-tecequipment.com/?p=110</guid>
		<description><![CDATA[What we really need is you!  We like to think that we are pretty creative around here, but we know that almost all of the really good ideas come from the field.  "Necessity is the mother of invention"...]]></description>
			<content:encoded><![CDATA[<p>&#8220;If you never do what you never did, you&#8217;ll never get what you never got.&#8221;  That is my paraphrase of an old saying.  In today&#8217;s business climate, we are trying hard to get the market share we used to, and also trying to get the new sales we never got.</p>
<p>We have had an &#8220;Innovation&#8221; program at Pro-Tec Equipment for almost 2 years, giving monthly incentives to employees for coming up with ideas.  So far we have had hundreds of suggestions, some better than others, to help improve either our product line or manufacturing processes.  This program has really helped keep everyone thinking about how we can be better at our product offering and fabricating procedures.<span id="more-110"></span></p>
<p>However, what we really need is you!  We like to think that we are pretty creative around here, but we know that almost all of the really good ideas come from the field.  &#8221;Necessity is the mother of invention&#8221;, -can you tell i like old sayings- when contractors are faced with a problem, they figure it out.  If stone is being wasted for backfill, how about a Stone Saver.  If putting a trench shield together is awkward, how about lifting eyes in the knife edge.  If a slide rail panel is hard to reach, how about a panel pusher (P.I.T. Boss).  You get the picture.  Sometimes the contractor will tell us, but more often they will just cut and weld or discuss the issue with our dealer sales team.  In fact, sometimes in response to the contractor, the sales people will figure it out first.  We don&#8217;t care who figures it out, we just want to hear your concepts so we can build a better mouse trap.</p>
<p>So please, send us your ideas: large or small, simple or complex.  Just draw the idea up on the back of napkin, or even better, write it on the back of a hundred dollar bill and send it to Ron.  Just one more old saying that I stole from my uncle.  It has nothing to do with the above but I like to say it every day and I think you will agree, &#8220;even though we&#8217;re getting better looking, we&#8217;re not getting any younger.&#8221;</p>
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		<title>Keep it Clean with Pro-Tec’s Rumble Grids</title>
		<link>http://feedproxy.google.com/~r/Pro-tecEquipmentNews/~3/osxi8XU_Pfk/keep-it-clean-with-pro-tec%e2%80%99s-rumble-grids</link>
		<comments>http://blog.pro-tecequipment.com/rumble-grids/2009/keep-it-clean-with-pro-tec%e2%80%99s-rumble-grids#comments</comments>
		<pubDate>Tue, 29 Sep 2009 20:39:35 +0000</pubDate>
		<dc:creator>Thomas Marciniak</dc:creator>
				<category><![CDATA[Rumble Grids]]></category>

		<guid isPermaLink="false">http://blog.pro-tecequipment.com/?p=105</guid>
		<description><![CDATA[Pro-Tec Rumble Grids keeps road way clean.]]></description>
			<content:encoded><![CDATA[<p>Public owners are demanding that contractors keep their roads and storm sewers free of job site mud and debris.  To help contractors with this important and growing issue, Pro-Tec developed the Rumble Grid tire cleaning system.</p>
<p>“We had planned on using the traditional crushed rock for the project’s entrance until Pro-Tec approached us with the Rumble Grids.  Instead, we used a combination of the crushed rock and the Rumble Grid system.  It made a major difference in the cleanliness of the stone before entering the road” said project manager Paul Powell of Clark’s Construction, of Detroit which was awarded the new MDOT facility in Taylor where the system was used.  “This system would be effective on a high profile intersection like this or any site work project,” Powell added.<span id="more-105"></span></p>
<p>This particular system consisted of (3) 8’ long x 12’ wide rumble grids.   When trucks run over the raised grates on the Rumble Grids as they exit the job, accumulated mud is knocked off the tires and falls into a collection reservoir.  This prevents any dirt contamination into the storm sewer and limits dust on the road.</p>
<p>Clark’s was able to eliminate a tractor with a broom entirely from this project, which saved on traffic and also on job expenditures.  According to Powell, the only maintenance item for the entrance to the job was the crushed rock, which needed to be touched up once in a while.</p>
<p>Pro-Tec’s three facilities in Taylor, Charlotte, &amp; Grand Rapids have the Rumble Grids as well as a full line of trench shoring and site access equipment.</p>
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		<title>New Shoring System Helps Twins Stadium Foundation</title>
		<link>http://feedproxy.google.com/~r/Pro-tecEquipmentNews/~3/ynT8s1KA2R4/new-shoring-system-helps-twins-stadium-foundation</link>
		<comments>http://blog.pro-tecequipment.com/slide-rail-system/2009/new-shoring-system-helps-twins-stadium-foundation#comments</comments>
		<pubDate>Mon, 31 Aug 2009 21:08:20 +0000</pubDate>
		<dc:creator>Thomas Marciniak</dc:creator>
				<category><![CDATA[Slide Rail System]]></category>

		<guid isPermaLink="false">http://blog.pro-tecequipment.com/?p=15</guid>
		<description><![CDATA[One challenge stands out beyond the everyday challenges faced by crews building the new, $412 million, 40,000 capacity stadium for the Minnesota Twins. Located just a few blocks west of downtown Minneapolis, the construction site is hemmed in on all sides by bridges, roads and buildings; making for tight working conditions and a logistical challenge [...]]]></description>
			<content:encoded><![CDATA[<p>One challenge stands out beyond the everyday challenges faced by crews building the new, $412 million, 40,000 capacity stadium for the Minnesota Twins. Located just a few blocks west of downtown Minneapolis, the construction site is hemmed in on all sides by bridges, roads and buildings; making for tight working conditions and a logistical challenge for moving hundreds of workers and trucks in and out of it daily. <span id="more-15"></span><br style="padding: 0px; margin: 0px;" />It was conditions below ground, however, that first challenged Minneapolis-based Mortenson Construction crews before any piece of steel or concrete rose above the ground. Formerly a flat parking lot, the site of the new stadium is an urban fill and part of an old riverbed, Basset Creek.<br style="padding: 0px; margin: 0px;" />When Mortenson crews began excavating to build the underground supports, they quickly realized that the ground conditions were too soft and unstable to safely dig and build the concrete support beams without digging a mammoth pit.<br style="padding: 0px; margin: 0px;" />Mortenson turned to Gary Carlson Equipment, Blaine, Minn., knowing that the company has a unique slide rail shoring system that might help with the construction of the underground support system. Manufactured by Pro-Tec Inc., headquartered in Charlotte, Mich.; the slide rail shoring system is a modular, flexible design composed of a series of corner posts, panels, spreader posts, spreader beams and roller beams in a variety of sizes. <br style="padding: 0px; margin: 0px;" />How It Works <br style="padding: 0px; margin: 0px;" />Unlike the one box shoring typically used for shoring support, the slide rail system is built panel by panel at the construction site, giving the contractor the versatility to create a shoring system where the length, width or depth can be changed, depending on the soil conditions and the structure being installed. <br style="padding: 0px; margin: 0px;" />According to Pro-Tec, once the initial excavation is done, the first panel and corner post are placed and squared. The second, third and fourth panels and posts are then pushed into place by an excavator, which begins a dig and push process to slide the panels and posts into the ground.<br style="padding: 0px; margin: 0px;" />The panels are installed from the top down and removed from the bottom up. During the removal process, the panels are lifted out of the system incrementally while compaction and backfilling proceed.<br style="padding: 0px; margin: 0px;" />“We got a call from Mortenson wondering if [our] shoring systems [would] work for [them],” Mike Doyle, project manager of Gary Carlson Equipment, recalled. “We went down and took a look at the site and the work involved. The grade beams they were building [to support the bleachers above the pipe] ranged 40 to 50 feet in length. Because of its flexibility, it allowed our crews to change the length by the panels we used. We have 6-, 12- and 24-foot panels in 2-foot increments. If they wanted to build a smaller beam, then we could put in a 12-foot panel versus a 24-foot panel.”<br style="padding: 0px; margin: 0px;" />“That’s what was appealing to the Mortenson crews. The versatility of the system and the fact that they were able to minimize excavation and removal and get the big cranes right next to the bays and drive the piles after they did the excavating. Basically the crews had an assembly line going. They were excavating and installing in one area while in another area, they had the system up and pounding piles. It was quite the operation. We are factory trained installation technicians so we’ll go out to the site with the contractor and show the crews how to do a proper installation. After a customer does a couple of installations, he can usually do it on his own. It has a fairly short learning curve.” Doyle said.<br style="padding: 0px; margin: 0px;" />Successful Solution<br style="padding: 0px; margin: 0px;" />Tom Nonweiler, a concrete superintendent of Mortenson, could not have been happier with the slide rail system. <br style="padding: 0px; margin: 0px;" />“With the saturated clay we were working in, we just didn’t have the opportunity to open cut it. The hole would have been so excessive to safely work in it,” Nonweiler remarked. “We minimized the cut and the cost on that end plus the expense of hauling the excess material off the site. Not every girder we poured was the same length so it was adaptable and we could reconfigure to work with the different size pile cap transfer beams that were required,” Nonweiler said. <br style="padding: 0px; margin: 0px;" />The Twins stadium site, one of several where his crews have used the slide rail system over the past year, “was one of the more challenging jobs I’ve seen in awhile!” Carlson said. “Much of the creek was put underground in a cut and cover tunnel years ago and the new stadium sits right above it. And much of the surrounding ground was muck.”<br style="padding: 0px; margin: 0px;" />“You’ve got railroad tracks, clay, sand, brick, all urban fill. Pretty bad stuff with quite a bit of contaminated soil. You name it; it’s in there. No one has built on this site in years. It was a parking lot because of that,” Doyle added. <br style="padding: 0px; margin: 0px;" />The unstable fill along with the underground pipe forced engineers to design a below surface support system to bear the load of a good portion of the left field side of the stadium.<br style="padding: 0px; margin: 0px;" />“The poor fill, made up of clay, soft, spongy ground and muck along with the underground creek bed made for a perfect combination of conditions to use the slide rail system,” Carlson said.<br style="padding: 0px; margin: 0px;" />Supporting a Stadium<br style="padding: 0px; margin: 0px;" />The underground support system is composed of thousands of feet of steel piling up to 120 ft. (37 m) deep and capped by heavily reinforced concrete footings or grade beams. More than 36 grade beams span the creek area under the future bleachers.<br style="padding: 0px; margin: 0px;" />At the Twins site, as many as eight slide rail systems were in place at one time and installed perpendicular to the underground pipe allowing workers to complete several tasks at the same time. <br style="padding: 0px; margin: 0px;" />“We had seven or eight of these systems in a row in different stages of completion,” Carlson explained. “So they would excavate and get the system in, drive the pilings, build the rebar cage and pour the concrete in a continuous rotation. Once compaction and backfill were completed, work crews removed that system and moved it down to the next beam location.”<br style="padding: 0px; margin: 0px;" />Among other advantages of the slide rail system, it is cost effective, installed and removed easily by a small crew and allows low vibrations installations, according to Pro-Tec. <br style="padding: 0px; margin: 0px;" />Innovative Thinking<br style="padding: 0px; margin: 0px;" />Carlson himself came up with an additional tool to make the slide rail installation process easier. Before the Twins stadium job, Carlson’s crews had met some tight working conditions at a sewage treatment plant project in southern Minnesota that made the panel installation extremely difficult.<br style="padding: 0px; margin: 0px;" />“We were very near to a tank and the excavator with its hoe was at an angle and trying to push down on the narrow tops of the shoring wall. It was extremely difficult because of the restricted space,” Carlson said.<br style="padding: 0px; margin: 0px;" />Carlson sat down that week and spent some time studying the pictures of the equipment and site. <br style="padding: 0px; margin: 0px;" />“At 3 a.m. one morning, the lights went on and I came in to the office the following Saturday and built the first panel pusher,” Carlson recalled.<br style="padding: 0px; margin: 0px;" />“Now, rather than having an excavator push down on the relatively narrow edge of a panel, the operator can place this beam on the panel and push the bucket down on the pad,” Carlson explained.<br style="padding: 0px; margin: 0px;" />“This has revolutionized the installation of the rail systems,” Carlson added. “We patented it and sold the rights to Pro-Tec and it has made a dramatic difference in selling the slide rails.”<br style="padding: 0px; margin: 0px;" />Similar to the advantages of the slide rail system, the panel pusher or P.I.T Boss, as coined by Pro-Tec, increases the speed of installation, reduces wear and tear on the excavator and panels and allows access in tight conditions, according to Pro-Tec.<br style="padding: 0px; margin: 0px;" />Finding Stable Footing<br style="padding: 0px; margin: 0px;" />Mortenson crews faced another challenge at the Twins site as the summer climate changed to a wetter pattern in mid-August, just as they began digging. The wet pattern, running into October, combined with the existing soft ground conditions created a quagmire and bogged down man and machine alike.<br style="padding: 0px; margin: 0px;" />“Mortenson ushered in another innovative solution to the quagmire by trucking in thousands of square feet of Dura-Base matting just to give the heavy equipment some solid footing on the ground,” Doyle said.<br style="padding: 0px; margin: 0px;" />“The Mortenson guys looked at the huge pieces of plastic mats and thought, ‘Wait a minute, we’re not going to be able to put our cranes on that stuff,’” Carlson added. “But it didn’t take too long and we had cranes going all over that mat.”<br style="padding: 0px; margin: 0px;" />“The Dura-Base mats also gave work crews some solid footing and moved them out of the muck to build staging areas and piece together the rebar cages on stable ground,” Doyle said.<br style="padding: 0px; margin: 0px;" />Sidewalk superintendents can now see the stadium structure come to life as Mortenson crews have moved into the overhead stage of construction after recently completing the underground support work.<br style="padding: 0px; margin: 0px;" />Twins fans will see the first ball game in the new stadium when the American League kicks off its season in 2010. CEG<br style="padding: 0px; margin: 0px;" />Display On: 3/25/2008</p>
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