This disclosure describes a trench profile that includes horizontal stabilizer channels along the sides of the trench. The trench profile enables greater robustness of a trench seal to environmental conditions during a sealant application process. When a sealant is applied, the horizontal stabilizer channels in the sidewalls of the trench create a locking key that prevents the solidified sealant from rising above grade under conditions when the sealant is incompletely secured to the sidewall. The horizontal stabilizer channels prevent solidified sealant from sinking below grade as a result of compression of filler material or the filler rod in the trench. The use of stabilizer channels can reduce repair costs due to sealant failures and mitigate safety hazards that can arise from changes in sealant elevation.
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Korman, John; Cox, D. Clay; and Walsh, David, "Stabilizer channels for trenches", Technical Disclosure Commons, (April 27, 2018)