亳州某铁路建设工程地质灾害危险性评估.docxVIP

东华理工大学毕业设计（论文） 摘要 摘 要 本文以安徽亳州某铁路建设工程为研究背景，以灾害地质学基本理论原理和方法为指导，分析研究该铁路的地质条件，并结合实地环境地质调查和铁路详细勘察开发资料，选取自然地理条件、地质构造、工程地质条件、水文地质条件和地质灾害等因素进行分析，对建设场地内分布的各类地质灾害的危险性和危害程度逐一进行现状评估和预测评估。综合评估，结果表明： (1) 评估区内膨胀土变形地质灾害弱发育，预测评估区内拟建工程在AK153+400～AK156+400段可能会遭受采空塌陷地质灾害，其危害程度中等，危险性中等。 (2) 在AK153+000～AK153+400，AK156+400～AK157+000段可能会遭受采空塌陷地质灾害，其危害程度小，危险性小。 (3) 在AK67+000～AK165+862段可能会遭受地面沉降地质灾害，其危害程度小，危险性小。 (4) 在AK97+841.25～AK99+339.12，AK130+995.66～AK133+191.10段可能遭受河岸崩塌地质灾害，其危害程度小，危险性小。 (5) 在AK97+841.25～AK99+339.12，AK130+995.66～AK133+191.10段可能遭受软土变形地质灾害，其危害程度中等，危险性中等。 (6) 在AK69+000～AK85+000段可能遭受膨胀土变形地质灾害影响，其危害程度小，危险性小。 总体评价，拟建场地建设适宜性等级为基本适宜，结论可以为铁路工程建设提供参考。 关键词：地质灾害；危险性评估；危害程度；适宜性评价 东华理工大学毕业设计（论文） ABSTRACT ABSTRACT This article took a railway construction project in Anhui Bozhou as the research background,guided by the basic theoretical principles and methods of hazard geology,analysed and researched the geological conditions of the railway, combined with field environmental geological survey and the detailed survey and development of railway information, selected the natural geographical condition, geological structure, engineering geological condition, hydrogeological condition and geological disasters analyzed, and the distribution within the construction field of all kinds of degree of risk and harm of geological disasters in situation assessment and prediction evaluation one by one. Through comprehensive evaluation, which indicates that: (1) evaluation of deformation of expansive soil in the area of geological disasters, weak development forecast evaluation area planned project in AK153 + 400 ~ AK156 + 400 section may suffer goaf collapse geological hazards, the harm degree is medium, medium risk. (2) in AK153 + 000 ~ AK153 + 400, AK156 + 400 ~ AK157+ 000 section may suffer goaf collapse geological hazards, the harm degree is small, the risk is small. (3) in AK67 + 000 ~ AK165 + 862 sec