Municipal road pipeline reinforcement protection structure and construction method thereof

The invention discloses a municipal road pipeline reinforcement protection structure and a construction method thereof. A section-by-section construction method is adopted; the method includes the steps of S1, determining an existing pipeline position; S2, excavating the overlying soil on the upper portion and both sides of an existing pipeline, and forming ditches on both sides of the existing pipeline, so that the soil on both sides of the existing pipeline is separated from the existing pipeline; S3, excavating the upper soil on both sides of the ditches, so that step surfaces are formed onboth sides of the ditches; S4, conducting grouting and reinforcing on a step surface cloth hole, and forming a reinforcing wall on the sides, away from the existing pipeline, of the ditches; S5, back-filling the excavated overlying soil in step S2 in the ditches, wherein the backfilling height is not higher than the height of the step surface; S6, erecting a reinforcing bar frame on the upper portion of the existing pipe