Definition - What does Buckling mean?
Buckling is a material failure of a pipe under pressure. In sewer pipelines, this can happen as a result of deterioration over time, extreme changes in temperature, improper bedding, and heavy loads. A buckled pipe loses its original shape and can become the cause of leakages, clogging and the exfiltration of sewer water. Extreme buckling can cause a collapse of the pipe and create waste blockages which prevent the continued flow of waste products.
Trenchlesspedia explains Buckling
When pipe deforms due to buckling, the deformation occurs across the cross section of the pipe. In gravity sewers, the pipe is laid in a straight and constantly sloping grade. Buckling rarely happens due to longitudinal stress, but it can happen if the pipe is in pre-buckling condition (a manufacturing defect). Incorrect laying of a pipeline, the settlement of soil, improper grade and unusually heavy loads are some of the reasons pipes fail due to buckling. By using trenchless pipeline survey methods, pipe buckling can be forecasted and appropriate remedies such as the use of liners and reinforcing materials can be used to strengthen the pipe and prevent failure.