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Application of Midas GTS Three Dimensional Numerical Simulation New Technology in Stability of Hole Wall in HDD Engineering

机译:Midas GTS三维数值模拟新技术在硬盘工程孔壁稳定性中的应用

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Analysis of stability of hole wall has been an important technical problem in HDD engineering,but it’s difficult to know whether hole wall is instability or not in actual drilling engineering.This paper was analysis of the main factors (Mechanical parameters of rock and soil,slurry pressure) that influence stability of hole wall,and then Midas GTS (Geotechnical and Tunnel analysis System) three dimensional numerical simulation software was used to simulate instability process of the rock and soil mass around hole wall in HDD,it calculated which stress,strain and displacement,and obtained calculation results in the form of corresponding vector cloud pictures.It can determine whether the hole wall is instability or not by this calculation results.This is the first application of GTS three dimensional numerical simulation new technology in HDD engineering.Practice has proved that this new technology is accord with fact and useful for project construction,it is worth to be applied to HDD engineering.
机译:孔壁的稳定性分析一直是硬盘工程中的重要技术问题,但在实际的钻探工程中很难知道孔壁是否失稳。本文对主要因素进行了分析(岩土力学参数,泥浆力学特性)。压力)影响孔壁的稳定性,然后使用Midas GTS(岩土和隧道分析系统)三维数值模拟软件来模拟HDD孔壁周围岩土的失稳过程,计算应力,应变和应力位移,并以相应的矢量云图形式获得计算结果。通过该计算结果可以确定孔壁是否失稳。这是GTS三维数值模拟新技术在HDD工程中的首次应用。事实证明,该新技术符合事实,对项目建设很有用,值得在硬盘驱动器中应用。工程。

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