成渝铁路主要地质灾害危险性评估研究

发布时间：2018-04-18 13:24

本文选题：成渝铁路 + 地质灾害　；参考：《西南交通大学》2017年硕士论文

【摘要】：成渝铁路沿线地质灾害十分发育,查清沿线既有防治工程对目前地质灾害发展程度的适应性以及工作区的地质条件,掌握地质灾害在沿线的分布情况、目前的发展情况及所处的阶段,在此基础上判断灾害的发展趋势,这对改善沿线行车安全环境和主要地质灾害治理都具有积极的意义。由于成渝铁路所处地区雨量充沛、软弱岩层居多、地质构造复杂,各类地质灾害均有发育,对线路运营构成威胁,因此对沿线灾害进行危险性评估是非常必要的。文章针对成渝铁路(K380-K460段)采用现场调查与数据分析相结合,调查该线的地质条件、地质灾害的种类及沿线的发展情况、对铁路建筑造成的威胁情况、它们的发展趋势,应用综合指数法和模糊综合评判法对地质灾害的危险性等级进行评估,同时根据评估结果,结合成渝线主要地质灾害既有防治工程对当前灾害发展程度的适应性,提出了沿线主要地质灾害的整治措施和防护等级。根据现场的调查数据的分析,并将分析的结果与实际的经验判定的结果进行对比,验证所用危险性评估方法的适用性与可靠性,不仅对成渝线的灾害防治提出了建议措施,也为其它铁路线路灾害的防治提供了经验,对铁路线路的运营和维护都起到了很好的借鉴作用。文章在应用综合指数法和模糊综合评判法进行危险性评估过程中,对评价因子的选择,主要是根据地质灾害的影响因素来确定的,在涉及每个评价因子的选择办法以及相应权重的确定都是本课题研究的重点。在对现场进行调查研究的基础上结合沿线灾害的具体情况对各工点灾害进行了危险性评价,划分其危险性分级,并对灾害的发展趋势做出了判断。在对既有防治措施对灾害的影响的分析基础上,提出沿线现有灾害防护的有效性、灾害的防护等级以及防护措施的建议,为成渝线地质灾害的防治提供了定量化的科学依据。同时对类似的铁路线路也提供了经验,为铁路线路的安全运营起到应有的作用。
[Abstract]:The geological hazards along the Chengdu-Chongqing railway line are well developed. The adaptability of the existing prevention and control projects along the lines to the present degree of development of geological disasters and the geological conditions of the working areas are investigated, and the distribution of geological disasters along the lines is grasped.On the basis of the present development situation and the stage in which it is located, it is of positive significance to judge the development trend of the disaster, which is of great significance for improving the safety environment of the traffic along the road and the management of the main geological hazards.Due to abundant rainfall, weak rock strata, complex geological structure and various geological hazards, the Chengdu-Chongqing Railway is a threat to the operation of the railway line, so it is necessary to carry out the hazard assessment along the line.According to section K380-K460 of Chengdu-Chongqing Railway, the paper combines field investigation with data analysis to investigate the geological conditions, types of geological hazards and the development along the railway line, the threat to railway construction, and their development trend.The comprehensive index method and fuzzy comprehensive evaluation method are used to evaluate the hazard grade of geological hazards. According to the evaluation results, combined with the adaptability of the main geological hazards in Chengdu-Chongqing line to the current disaster development degree,The measures and protection grades of main geological hazards along the route are put forward.According to the analysis of the investigation data on the spot and the comparison between the results of the analysis and the actual experience, the applicability and reliability of the hazard assessment method used are verified. Not only the disaster prevention and control measures of Chengdu-Chongqing Railway are put forward, but also some suggestions are put forward for the prevention and treatment of disasters in the Chengdu-Chongqing Railway Line.It also provides experience for the prevention and treatment of other railway line disasters, and plays a good role in the operation and maintenance of railway lines.In the process of risk assessment by comprehensive index method and fuzzy comprehensive evaluation method, the selection of evaluation factors is mainly determined according to the influencing factors of geological hazards.The selection method of each evaluation factor and the determination of the corresponding weight are the focus of this research.On the basis of the investigation and study on the site, the hazard assessment of each work point disaster is carried out in combination with the specific situation of the disaster along the route, the hazard classification is divided, and the development trend of the disaster is judged.Based on the analysis of the influence of existing prevention measures on disasters, this paper puts forward the effectiveness of existing disaster protection along the route, the protection grade of disasters and the suggestions of protection measures, which provides a quantitative scientific basis for the prevention and control of geological disasters along the Chengdu-Chongqing Railway Line.At the same time, it also provides experience for similar railway lines, which plays an important role in the safe operation of railway lines.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U212.22;P694

【相似文献】