摘要
采用RD PCM地探仪对埋地输油管道外防腐层的露铁点进行不开挖检测 ,检测准确率达 10 0 %。其中焊接接头处未做防腐处理和防腐层质量不合格占露铁点的 80 %,硬物挤压损坏防腐层占 2 0 %。对管道开挖维修后回填 ,经地探仪二次检测 ,证明管道已处于安全保护状态。最后提出了管道施工工程中应注意的问题。
Undigging detection of destroyed spots was carried out on the outer corrosion protection layer of the oil pipeline by RD-PCM detector, its accuracy is 100%. Among them, the welding joint without the corrosion protection treatment and those with unqualified corrosion protection layer was about 80% of the destroyed spots, the others were extrusion. After digging, maintenance and being reburied, the pipeline was detected once more, which show that the pipeline was well protected. Some precautions are also proposed on the fixing of the pipeline.
出处
《材料开发与应用》
CAS
2002年第6期35-37,共3页
Development and Application of Materials
