本文選題：瀾滄江跨越管道 + 落石運動路徑　； 參考：《應用力學學報》2017年03期

【摘要】：瀾滄江跨越管道工程的跨越區(qū)山體高聳挺拔、地勢險峻,兩岸陡崖上分布有危巖及崩塌堆積體,其地理位置極易受到崩塌落石危害,落石沖擊作用會造成管道刮痕、壓坑,引起管道變形失穩(wěn)甚至破裂,造成油品泄漏。本文以瀾滄江跨越段管道及兩岸落石為研究對象,首先運用Roc Fall軟件建立落石運動路徑數(shù)值模擬模型,分析落石質(zhì)量對落石運動過程的影響,并探究了不同質(zhì)量落石撞擊管道時,落石攜帶的最大動能等特性參數(shù)影響規(guī)律;然后運用CAESAR II軟件對瀾滄江跨越段天然氣管道進行分析,確定會使其處于危險(或被破壞)狀態(tài)的落石質(zhì)量閾值。分析結(jié)果可為瀾滄江跨越管道落石災害防護和管道安全運營決策提供科學建議,也可以為地理條件與瀾滄江管道相似的管道工程設計、敷設施工、上方危巖防護規(guī)劃提供指導和借鑒。
[Abstract]:The mountain body in the crossing area of the Lancang River crossing pipeline project is tall and tall, the terrain is steep, and there are dangerous rocks and collapse accumulations on the banks of the steep cliffs. Its geographical location is easily damaged by the collapse and falling stones, and the impact of falling stones will result in scratches and indentation of pipelines. Cause pipeline deformation instability or even rupture, resulting in oil leakage. In this paper, a numerical simulation model of rock falling path is established by using Roc Fall software to analyze the influence of rock drop quality on the rock falling process. The influence law of the characteristic parameters such as the maximum kinetic energy carried by the rock drop on the pipeline is investigated, and then the natural gas pipeline in the Lancang River crossing section is analyzed by CAESAR II software. Determine the rock drop mass threshold that puts it in a dangerous (or damaged) state. The results of the analysis can provide scientific advice for the prevention of rock fall disaster and decision-making of pipeline safety operation, and can also be used for the design and construction of pipeline engineering with similar geographical conditions as that of Lancang River pipeline. The protection plan of dangerous rock above provides guidance and reference.
【作者單位】： 西南石油大學石油與天然氣工程學院;中石化西南油氣分公司廣西采油廠;中國石油西南管道公司;西南油氣田公司華油集團凱源燃氣西永分公司;
【基金】：“十三五”國家重點專項(2016YFC0802100) 中國工程院咨詢研究項目(2015-XZ-37)
【分類號】：TE973.4

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