管道江底隧道渗漏整治措施

Discussion on the seepage control for the river tunnel of crude oil pipeline

管道江底隧道穿越技术被广泛应用于管道施工建设中,而隧道受复杂江底地质情况、不均衡水压等诸多因素的影响易出现渗漏。管道江底隧道出现渗漏的原因主要有施工质量和自然条件两个方面。根据遵循国家法律法规、节省投资、整治后的隧道维检修方便等隧道整治原则,提出了充水、回填和止水等3种整治措施,并对各种措施从施工难易程度、整治效果和存在问题进行了详细分析,指出止水措施虽然一次性投资高,但可以从根本上恢复隧道原状,优于其他两种措施。

The technology in the river tunnel crossing for pipeline is widely used in pipeline construction,but due to the complex geology,uneven water pressure and many other factors,the tunnel is prone to seepage.The reasons resulting in the seepage are analyzed.Results show that the construction quality of pipeline and natural conditions are the major factors leading to the seepage.According to the tunnel regulations,the renovated tunnel should follow the relevent state rules and investment saving.The regulated tunnel should be convenient in maintenance.The following methods such as water-filling,backf illing and sealing are proposed,and each method is analyzed in the aspects of construction difficulty,effectiveness of renovation and existing problems.The research direction given in the tunnel is to ensure the safety and economic utilization.It is instructive and meaningful to deal with the seepage problem of river tunnel of oil pipeline.