Trenchless Technology

NOV 2018

Trenchless Technology is the premier communications vehicle for the trenchless industry. Through our multiple platforms, readers receive insights into the trenchless industry, as well as keep connected to the latest news, products and projects.

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60 T R E N C H L E S S T EC H N O LO GY N OV E M B E R 2018 N A S S C O R E P O R T : L A T E R A L C O M M I T T E E WHEN IT COMES TO REHABILITATING LATERAL LINES using cured-in-place pipe (CIPP) technology, most people think of repairing the lateral that runs from a building struc- ture to a street. This article focuses on a unique project that included the rehabilitation of verticals with significant tran- sitions and bends inside an industrial facility. Bob Frame Inc. (Frame) has provided plumbing services in South Bend, Indiana since 1932. Working with the Uni- versity of Notre Dame and other organizations in the South Bend area, the company is often called upon by the City of Mishawaka, Indiana, for evaluation of sewer systems and other services. Seeing the growing interest by the City for the proper rehabilitation of lateral lines, Frame saw the opportu- nity to invest in resources to rehabilitate failing lateral and vertical pipes. " We wanted to see first-hand how CIPP lateral relining works, so we set off to Chicago for on- site training and edu- cation," said Dave Frame, the company 's current owner and father to Tyler Frame, Journeyman Plumber and successor to the Bob Frame business. "The sewer lateral project, part of Chicago's combined system, was a great one to observe. The mains run under the roads, and the storm laterals run from catch basins in the curbs, all leading to the manhole located directly in the center of the road." Leaving Chicago armed with an understanding of the pro - cess and the equipment and materials they needed, Frame spent the first day training at their shop with MaxLiner in the proper installation of CIPP, reviewing equipment and practicing lining in a controlled, above-ground environ- ment . They also lined pipes with bends that transitioned from 4 to 6 in. The crew 's first in- the-field project – relin- ing 70 ft of 8-in. storm lateral pipe – was similar in scope to the project Frame's crew witnessed in Chicago. It went off without a hitch. The second CIPP project for the company was a bit more challenging. Called upon by Patterson Companies, a distri- bution company that specializes in the efficient inventory management and shipping of dental equipment and veteri- nary medicines, Frame was hired to rehabilitate a line within their distribution facility which requires an impeccably pris- tine environment. CIPP lateral relining was a perfect solu- tion as it eliminated the need to dig up the existing pipes. The Patterson facility has an 8-in. rain leader — or roof drain — that runs down one of the support columns, turns 90 degrees underneath the floor, and travels another 30 to 40 ft to the main. To complicate things even more, the line also has three 45 degree turns. "The training and variety of lining materials we were provided really kicked in for this project," said Tyler Frame. "Since this was a ' blind shot', meaning we only had access to one end of the line, we used an 8 in x 4.5- mm liner that is super flexible, and it worked great." Another challenge was the fact that the rain leader was surrounded by steel tubing to protect it from fork trucks and other potential damage. "Thankfully, the lining equipment is super lightweight and compact," said Dave. " We were able to stack pallets, strap the liner gun to them, cut the pipe and invert the liner. The low emissions from the cure process and the energy efficiency allowed us to do this inside the facil - ity with minimal disruption, meeting the high standards re- quired by this business." This article was provided by NASSCO Lateral Committee member Chad Miller of MaxLiner USA. L at e r a l R e l i n i n g i n S o u t h B e n d , I n d i a n a B y N A S S C O L a t e r a l C o m m i t t e e M e m b e r C h a d M i l l e r , M a x L i n e r U S A The crew 's first in-the- field project – relining 70 ft of 8-in. storm lateral pipe – was similar in scope to the project Frame's crew witnessed in Chicago. It went off without a hitch.

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