旅游公路膨胀土边坡失稳研究及治理

发布时间：2018-01-13 15:35

本文关键词：旅游公路膨胀土边坡失稳研究及治理　出处：《武汉轻工大学》2014年硕士论文　论文类型：学位论文

【摘要】：膨胀土边坡的地质灾害问题已经成为影响公路工程建设质量和公路车辆通行安全性的关键因素，分析工程所在地膨胀土的特性及公路边坡的稳定性是公路灾害防治的关键。本文在结合理论和试验数据下，对某旅游公路膨胀土的一般特性和路堑边坡稳定性进行分析并对实际工程对应研究了边坡灾害防治方案，具体工作如下：（1）分析讨论了不同条件下公路边坡稳定性的各种计算方式。研究了边坡失稳的原因和种类，粘结力和内摩擦角对边坡稳定性的影响，对旅游公路边坡灾害防治的指导意义。（2）应用极限平衡研究法，通过采用计算机软件对旅游公路不同路段的边坡土体进行稳定性分析，并对软件分析结果进行了安全系数的规律研究。（3）采用实验对比法，，在旅游公路部分路堑的土体进行了改性试验研究，试验选用生态改性剂对公路路堑边坡土壤进行了改性试验，并对路堑边坡土壤与试验后土壤进行了对比分析。（4）对一般性的边坡灾害防治措施进行总结分析，通过对实际旅游公路边坡土体的稳定分析，确定具体防治设计方案，在工程中具有良好的效果，对我国旅游公路建设中的边坡灾害防治工作具有一定的实践参考价值。
[Abstract]:The geological hazard of expansive soil slope has become a key factor affecting the quality of highway construction and the safety of highway vehicles. The analysis of the characteristics of expansive soil and the stability of highway slope is the key to the prevention and treatment of highway disasters. Under the combination of theory and experimental data, this paper analyzes the general characteristics of expansive soil and slope stability of a tourist road, and studies the corresponding slope disaster prevention scheme for practical projects. The specific work is as follows: 1) various calculation methods of highway slope stability under different conditions are analyzed and discussed. The causes and types of slope instability, the influence of bond force and internal friction angle on slope stability are studied. It is of guiding significance to the prevention and cure of the slope disaster of tourist highway. 2) the stability analysis of slope soil in different sections of tourist highway is carried out by using the method of limit equilibrium, and the rule of safety coefficient is studied. In this paper, the experimental study was carried out on the soil of the cut of the tourist highway by using the method of experimental contrast, and the ecological modifier was selected to modify the soil of the cutting slope of the highway. The soil of the cutting slope is compared with the soil after the test. 4) summing up and analyzing the general measures of slope disaster prevention and control, through the stability analysis of the actual tourist highway slope soil mass, the concrete prevention and control design scheme is determined, which has good effect in the project. It has certain practical reference value for the slope disaster prevention in the tourism highway construction in our country.
【学位授予单位】：武汉轻工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U416.14

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