The method of using hdpe winding reinforced pipe and cement mortar to strengthen the round pipe culvert of highway

Abstract

The invention discloses a method for reinforcing a circular pipe culvert by adopting HDPE winding reinforcing tubes and cement mortar. The method comprises the following steps: 1, arranging a lining pipe in the circular pipe culvert; 2, arranging a conveying pipe and an exhaust pipe, specifically, extending the conveying pipe and the exhaust pipe into a ring cavity; 3, sealing the ring cavity, specifically, laying a first block end wall used for sealing one end of the ring cavity at the water inlet of the circular pipe culvert, and the conveying pipe passing through the first block end wall; laying a second block end wall used for sealing the other end of the ring cavity at the water outlet of the circular pipe culvert, and the exhaust pipe passing through the second block end wall; and 4, injecting the cement mortar into the ring cavity through the conveying pipe, to form a filling reinforcing layer. By applying the method, the circular pipe culvert can be effectively reinforced, the cross-sectional area of bearing components of the culvert can be increased, and the bearing capacity of the culvert is improved.

Description

technical field [0001] The invention belongs to the technical field of circular pipe culvert reinforcement, and in particular relates to a method for reinforcing road circular pipe culverts by using HDPE winding reinforcement pipes and cement mortar. Background technique [0002] The number of culvert projects accounts for more than 50% of the total number of highway bridges and culverts. According to statistics, in plain areas, there are 3 to 5 culverts per kilometer; in mountainous and hilly areas, there are an average of 6 to 8 culverts per kilometer. With the increase of the operating life of the culvert, under the influence of factors such as environment and load, some reinforced concrete circular pipe culvert joints will have concrete spalling and cracking to varying degrees; When uniformly deformed, problems such as pipe joint detachment and misaligned teeth often occur, which in turn lead to culvert leakage and erosion, affecting the normal use and long-term perform...

AI Technical Summary

Problems solved by technology

However, for reinforced concrete circular pipe culverts and corrugated steel pipe culverts, there is still a lack of feasible repair methods

In fact, no matter for reinforced concrete slab concealed culverts, reinforced concrete circular pipe culverts or corrugated steel pipe culverts, if the repair and reinforcement scheme of excavating the subgrade to replace or reinforce damaged components is adopted, the normal traffic of the road may be affected for the heavy traffic section. Sometimes it is necessary to build temporary access roads; for culverts with a relatively high fill height, if the culvert top and culvert side roadbed are excavated, the construction will be more difficult and costly

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