“西气东输”工程是国家的重大工程之一，该工程经过黄土高原地区。黄土高原地区由于受流水侵蚀严重，其地表多沟壑、高边坡，滑坡时常发生。在黄土高原地区，西气东输管线安全受到以滑坡为代表的地质灾害的威胁。针对这种情况，本文选取西气东输子长段（属黄土高原地区）一处高边坡，首先对其进行工程地质条件分析，然后用数值模拟的方法计算出了理想二维状态下的边坡的安全系数，最后，根据分析的结果希望能引起足够的重视，采取相应的治理措施。%The West- East national gas transmission project, which is one of the major projects in our country, passes through the loess plateau region. Because of the serious run off erosion in the loessplateau region,manygul ies and high slopes have been formed on earth surface.So,lands lide of ten happens in this region.The pipe of the west-east national gastrans mission project has always been threat ened by geological disaster,represented by land slide,inthe loes splate auregion.Inconside ration of this situation,this the sischosea high slope from Zichangsegment in West-East natural gastrans mission project as the object of study.Engineering geological condition analysis of this highslope was taken first.Then,safety factors of ideal 2D slope model were calculated respectively.Finaly,wehope the results of the analysis can be taken seriously enough,to take appropriate control measures.
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