1987年2～7月,管道局组织了管道科学研究院等有关单位对中洛线腐蚀情况先后进行了3次不同规模的现场开挖调查,其调查开挖点多集中分布于新乡以东,而对河流、铁路及公路穿越的输油管线的腐蚀情况都不清楚。 1987年12月在汲县站出口西约10km处的柴庄进行换管时,发现有的部位腐蚀坑深达4.95mm,原管壁厚为6.35mm,此处壁厚仅剩1.4mm。若以2mm/a的腐蚀速率推算,用不了一年,就会穿孔漏油了。 From July to July 1987, the Pipeline Bureau organized the relevant units such as the Pipeline Science Research Institute to carry out on-site excavation investigations of three different scales on the corrosion of the Zhongluo Corridor. The investigation and excavation points were mostly distributed to the east of Xinxiang, However, the corrosion of oil pipelines traversed by rivers, railways and roads is unclear. In December 1987, at the outlet of Shixian County, about 10km west of Qixian County Station, the corrosion pit was found to be as deep as 4.95mm with a wall thickness of 6.35mm and a wall thickness of 1.4mm left here. If the corrosion rate of 2mm / a projections, it will take less than a year, will be punctured oil spills.