论文部分内容阅读
根据影响区域地质灾害发生的地质因素、地形因素、诱发因素和人为因素,建立区域地质灾害评价指标体系,对典型线路穿越的评价试验区进行地质灾害区域评价。由于地质灾害数据不仅含有不确定性而且还有复杂的模糊性,因而选用模糊评价方法。本文主要通过选取典型线路,采用模糊综合评判,利用GIS来进行,该研究结果表明是科学的、合理的和客观的,能节约大量的人力和物力,因此得出了用GIS来研究区域地质灾害评价是可行的,但对于一个特定区域而言,选取一条线路是不够的,应该选取多条线路同时并举的做法会更加科学。
According to the geological factors, topographical factors, induced factors and human factors that influence the occurrence of regional geological disasters, the paper establishes the index system of regional geological disasters evaluation, and evaluates the geological disasters in the evaluation and test area of typical line crossing. Because geological disaster data not only contain uncertainty but also complex fuzziness, fuzzy evaluation method is selected. This paper mainly chooses the typical route, uses the fuzzy comprehensive judgment and uses the GIS to carry on. The result of this research shows that it is scientific, reasonable and objective, which can save a lot of manpower and material resources. So it is concluded that using GIS to study the regional geological disasters Evaluation is feasible, but it is not enough for a particular area to pick one line, and it should be more scientific to choose multiple lines simultaneously.