From: Current Trends and Perspectives of Detection and Location for Buried Non-Metallic Pipelines
Methods | Location conditions | Accuracy | Interference | Strengths | Weaknesses |
---|---|---|---|---|---|
Pipe excitation method [63] | Non-metallic pipes have a dew point | High | Small | Easy to distinguish the situation of multiple pipelines parallel | The dew point is needed, and the gas needs to be stopped |
Elastic wave method [85] | Any ground surface | High | Small | Any ground surface, the result is intuitive and clear | The operation is complex and the location efficiency is low |
Point vibration measurement [104] | Buried shallow enough non-metallic pipeline | Low | Large | Easy operation | Shallow depth |