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Complex Shoring Solution
“On all four of the boring and jacking pits, we had limited access,” says Kim Sprague, field superintendent for Lowe Construction. “We had a creek nearby on the first pit, a pond next to the second pit and apartment buildings and a road for the other two pits.” With Pro-Tec’s patented panel installation tool (P.I.T. Boss), having limited access is merely a minor inconvenience. “We used the P.I.T. Boss on three out of the four pits we installed,” said Josh Brown, one of the Pro-Tec Equipment Slide Rail consultants on the Saddleback Sanitary project. “Without the P.I.T. Boss, at the depths that Lowe Construction was working, there would have been no easy way to install those panels to the proper depth.”
The slide rail shoring system is made up of five main components: corner post, spreader post (also known as linear rails), spreader beams, roller beams and panels. The panels used in the slide rail system are similar to trench shields; however, they are designed and reinforced in a way that allows them to stand up to the rigorous environment in which slide rail systems are commonly used.
On the site, Lowe Construction was using two 100,000- pound excavators. At one point, they even enlisted the services of a 700 Hitachi excavator. “In my 25-plus years of dirt work,” said Sprague, “these were the worst job conditions I’ve come across. We had sticky and firm clay, mixed in with running sand. They weren’t on top of each other. In some cases, they ran vertically or even diagonally.”
For the Saddleback Sanitary Project, Lowe Construction was the primary sub-contractor for the boring and jacking. The general contractor on the site was Jackson-Merkey Contractors, out of Muskegon, MI.
Lowe Construction is based out of Horton, MI. Founded in 1974, their primary focus is in auger boring and jacking, pipe jacking and tunneling.
Pro-Tec Equipment has been a leading producer of trench shoring and shielding equipment since 1995. Based out of Charlotte, MI, Pro-Tec Equipment’s products are P.E. certified to meet and\or exceed OSHA standards.