贵州省遵义市南部新区某边坡治理工程设计
摘 要
边坡是具有一定倾斜度的临空面，当边坡失稳破坏造成的损失极为严重时，通常会危及到生命安全、财产安全，从而会影响到整个社会的安定有序。在很多建筑物进行修建时往往会形成边坡，若不对此类边坡进行支护处理将会带来很严重的后果，例如因开挖而形成的边坡不进行支护通常会发生滑坡、崩落、滑塌，鉴于后果严重，边坡在形成后都必须对其进行治理。首先进行稳定性计算，后续根据计算结果选择合适的治理方案来增加边坡的安全储备。因此，边坡治理在工程建设中是一项重要的内容。
本文以贵州省遵义市南部新区边坡的现场勘察报告结果作为毕业设计的相关参数取值的依据，充分运用在本科期间所学到的专业课知识进行此次毕业设计，通过查阅相关资料、规范和利用本科所学专业课课本，并且在老师的指导下完成该工程的治理措施设计。在支挡措施设计前应先运用理正软件对边坡的潜在滑面进行分析，再利用Bishop法计算边坡的安全系数和滑坡推力，并通过查阅相关资料对该边坡的稳定性状进行评价。根据所得的评价结果选择合适的支挡结构，根据工程勘察报告和相关规范，对不同区段分别采用重力式挡土墙、预应力锚索+抗滑桩的支护形式进行治理，最后得出本工程的支护措施设计。重力式挡墙对于土质边坡和高度较低的边坡具有良好的支挡效果。抗滑桩+锚索+桩间板对于坡脚为道路环境的边坡而言是一种行之有效的方法。锚索与抗滑桩的结合能够使滑体的稳定性增强，通过锚索锚固到岩层使结构面压紧，加固效果好，从而增加边坡的稳定。
关键词：边坡稳定性分析，重力式挡土墙，锚拉桩
Design of a slope treatment project in the southern new area of Zunyi City, Guizhou Province
Abstract
A slope is a free surface with a certain inclination. When the slope is unstable and damaged, the losses caused are extremely serious, usually endangering life safety and property safety, and affecting social stability and order. During the construction of many buildings, slopes are often formed. If such slopes are not supported, it will bring serious consequences. Slopes formed due to excavation without support usually lead to landslides, collapses, and collapses. Given the serious consequences, slopes will be treated after formation. First, stability calculations will be conducted, and then appropriate treatment plans will be selected based on the calculation results to increase the safety reserve of the slope. Therefore, slope treatment is an important aspect in engineering construction.
This article takes the on-site survey report of the slope in the southern new area of Zunyi City, Guizhou Province as the relevant basis for the graduation design. It fully utilizes the professional course knowledge learned during undergraduate studies to carry out this graduation design. By consulting relevant materials, standardizing and utilizing the professional course textbooks learned during undergraduate studies, and under the guidance of teachers, the design of the governance measures for this project is completed. Before designing the support measures, the Lizheng software should be used to analyze the potential image of the slope, and then the Bishop method should be used to calculate the safety factor and landslide thrust of the slope. Relevant information should be used to evaluate the stability of the slope. Based on the evaluation results obtained, select the appropriate support structure, and according to the engineering survey report and relevant specifications, use gravity retaining walls, prestressed anchor cables, and anti-skid piles for different sections of the project for treatment. Finally, obtain the design of support measures for this project. Gravity retaining walls have good support effects on soil slopes and slopes with lower heights. Anti slip piles, anchor cables, and inter pile plates are an effective method for slopes with road environments at the foot of the slope. The combination of anchor cables and anti sliding piles can enhance the stability of the sliding body. By anchoring the anchor cables to the rock layer, the structural surface is compressed, and the reinforcement effect is good, thereby increasing the stability of the slope.
Key words：Slope stability analysis；Gravity retaining walls；Anchor pull piles
