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首页> 外文会议>2001 International gas research conference >SUBSURFACE BORING TOOLS: HOW AGGRESSIVE ARE THEY FOR GAS TRANSMISSION PIPELINES?
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SUBSURFACE BORING TOOLS: HOW AGGRESSIVE ARE THEY FOR GAS TRANSMISSION PIPELINES?

机译：地下钻孔工具：气体传输管道的综合性如何？

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摘要

Existing experimental work on third party damage resistance concerns puncture by excavator teeth. Gaz de France studied the harmfulness of other equipment, like subsurface boring tools, on gas transmission pipelines. They behave differently compared to excavators, as their power per strike is limited, but they repeat the strikes at high rates. So what small to medium diameter pipelines are threatened by boring tools? We first tested the action of boring tools on steel coupons flattened from pipe. Full scale tests on pressurised pipeline sections completed the initial results obtained on plates. Two extreme cases were characterised: one leading to puncture, the other one, where damage remains superficial. Numerical simulation with a highly non-linear ABAQUS model, and limited to 20 strikes for computational time reasons, was performed to gain more insight. A first global approach to this third party damage problem was completed, needing future further refinement.
机译：现有的针对第三方抗破坏性的实验工作涉及挖掘机齿的刺穿。法国天然气工业公司研究了其他设备（例如地下钻孔工具）对输气管道的危害。与挖掘机相比，它们的行为有所不同，因为它们的每次打击能力有限，但它们以高速率重复打击。那么，无聊的中小型直径管道受到威胁吗？我们首先测试了镗刀对从钢管上压平的钢样的作用。在加压管道段上进行的全面测试完成了在板上获得的初步结果。特征为两种极端情况：一种导致刺穿，另一种导致损伤仍然是表面的。为了获得更多的见解，使用高度非线性的ABAQUS模型进行了数值模拟，并由于计算时间的原因而限制了20次打击。解决此第三方损坏问题的第一个全球方法已完成，需要进一步完善。

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