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首页> 外文会议>ASME international pipeline conference 2008 >GEOTECHNICAL ACTIVITY AND THIRD-PARTY DAMAGES
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GEOTECHNICAL ACTIVITY AND THIRD-PARTY DAMAGES

机译：岩土活动和第三方损坏

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This article presents an accident that took place at a Petrobras Transporte S.A. - TRANSPETRO pipeline right-of-way (ROW), involving one of its pipes: ORSUB (Southern Bahia diesel, gasoline and LPG 360km Φ10"/ Φ8" pipeline).rnBasically, the mentioned occurrence shows the influence of collapses in third-party constructions in TRANSPETRO facilities' integrity. The event in Bahia consisted in the exposure of 70m of the pipeline, caused by a dam breach from a private property nearby. Due to the failure, the water from the reservoir streamed through the terrain, dragging and destroying whatever it came across (small houses wrecks, torn trees and crops were found along the water track), reaching the pipeline ROW around 700m from its origin, in a narrow rocky valley, hence gaining power and speed, and swept away the soil that covered the pipe, provoking a 70m long, 2m deep and 5m across opening.rnThe fact that the water ran along the pipe and did not hit it perpendicularly led to minor damages. The consequences, whether it happened otherwise, would be much more serious, especially in an environmental way, as this happened within the limits of a cocoa and banana farm, with a creek not even 10m away.rnA number of irregularities were found in the dam wreck, such as under dimensioned valve and intake structure and the lack of a spillway were the main reasons that caused the breach.rnMajor events like this bring to attention the fact that some farmers build their own dams (within the limits of their properties) with no expertise on the matterrnwhatsoever and often without any professional assistance. This represents a tremendous jeopardy for almost everything existing downstream the dam, such as crops, cattle, houses and people.rnAfter the dam rupture, the geotechnical engineers from TRANSPETRO started a study which mapped 35 dams only in ORSUB ROW neighbourhood, at least 3 of them were classified as critical.rnA hydrodynamic simulation, based on the accident described here, is being developed, so the engineers can predict what might happen to the pipeline ROW and, in a worst case scenario, to the pipe itself, whether another dam failure occurs.
机译：本文介绍了发生在Petrobras Transporte SA-TRANSPETRO管道通行权（ROW）上的事故，其中涉及以下管道之一：ORSUB（南巴伊亚州柴油，汽油和LPG 360kmΦ10“ /Φ8”管道）。 ，上述事件显示了第三方建筑倒塌对TRANSPETRO设施完整性的影响。在巴伊亚州发生的事件包括由于附近一家私人物业的大坝溃坝导致管道暴露了7,000万米。由于失败，水库中的水流过地形，拖曳并破坏了它遇到的任何东西（沿水道发现了小小的房屋残骸，残破的树木和农作物），到达了距其起点约700m的管道ROW。狭窄的岩石谷，因此获得了动力和速度，并清除了覆盖管道的土壤，激怒了70m长，2m深和5m的开口.rn水沿管道流过并没有垂直撞击导致小损失。无论是否发生其他后果，后果都会更加严重，特别是在环境方面，因为这发生在可可和香蕉农场的范围内，小溪甚至不到10m.rn在大坝中发现了许多不规则之处。诸如阀门和进气口结构尺寸不足之类的沉船以及缺少溢洪道是造成该破坏的主要原因。rn此类重大事件引起了人们的注意，即一些农民（在其财产范围内）建造了自己的水坝。在任何事情上都没有专业知识，而且经常没有任何专业协助。这代表着大坝下游几乎所有存在的一切危险，例如农作物，牲畜，房屋和人。rn在大坝破裂后，TRANSPETRO的岩土工程师开始了一项研究，仅在ORSUB ROW街区绘制了35座大坝，基于此处描述的事故，正在开发水动力模拟，以便工程师可以预测管道ROW以及在最坏的情况下管道本身可能发生的情况，是否还有其他大坝故障。发生。

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