典型公路路基与边坡预加固技术研究

发布时间：2018-05-16 16:03

本文选题：公路工程 + 适宜性评价　；参考：《重庆交通大学》2014年硕士论文

【摘要】：预加固技术作为一种被广泛采用的路基与边坡加固方法，其适宜性自然而然的受到各方面极大的关注。对于工程技术人员而言，选取适宜的预加固方法便可以达到事半功倍的效果，就能够保证路基与边坡的安全；对于预加固决策者或管理者而言，选取适宜的预加固方法就意味着能够保证公路正常的运营。此外，在实际预加固决策过程中，由于预加固决策者常常受到众多因素的影响和干扰，往往不能获得较为符合实际的预加固决策结果，不仅错过了路基与边坡预加固的最佳时机，而且还造成了资金的极大浪费。基于此，开展路基与边坡预加固方法适宜性评价和预加固决策方法研究具有较大的现实意义。本文以预加固工程中的公路路基与边坡为研究对象，，结合预加固工程实际情况，对典型公路路基与边坡预加固方法的适宜性及预加固决策方法进行了分析和研究，得到的主要成果如下： ①结合现行规范、工程实际及预加固方法自身特点，确立了公路路基与边坡预加固方法适宜性评价指标。 ②在公路路基与边坡预加固方法适宜性评价过程中，引入了模糊层次分析法，建立了由4个一级评价指标和13个二级评价指标组成的公路路基与边坡预加固方法适宜性评价体系。 ③针对公路路基与边坡预加固对公路交通通行条件的影响机制，构建了以预加固占用的车道数、预加固工点处平均车速、预加固的工期为指标的评价体系。 ④对公路典型路基与边坡预加固方法（减载和反压技术、支挡结构措施、灌注浆措施）的适宜性进行了分析和评价。 ⑤提出了基于价值工程理论的公路路基与边坡预加固决策方法，建立了路基与边坡预加固决策模型。
[Abstract]:As a widely used method of embankment and slope reinforcement, the suitability of pre-reinforcement technology has been paid great attention to. For engineers and technicians, the selection of appropriate pre-reinforcement method can achieve twice the result with half the effort, can ensure the safety of subgrade and slope, and for the decision maker or manager of pre-reinforcement, Choosing appropriate pre-reinforcement means that it can guarantee the normal operation of highway. In addition, in the actual pre-reinforcement decision-making process, because the pre-reinforcement decision makers are often affected and interfered by many factors, they are often unable to obtain more realistic pre-reinforcement decision results. It not only missed the best time of embankment and slope pre-reinforcement, but also caused a great waste of funds. Based on this, it is of great practical significance to evaluate the suitability of roadbed and slope pre-reinforcement method and to study the pre-reinforcement decision method. Taking highway subgrade and slope in pre-reinforcement engineering as the research object and combining with the actual situation of pre-strengthening project, this paper analyzes and studies the suitability and decision-making method of pre-reinforcement of typical highway roadbed and slope. The main results were as follows: The main results are as follows: (1) based on the current code, engineering practice and characteristics of pre-reinforcement method, the suitability evaluation index of highway roadbed and slope pre-reinforcement method is established. (2) in the process of evaluating the suitability of highway roadbed and slope pre-reinforcement method, the fuzzy analytic hierarchy process is introduced. The suitability evaluation system of highway roadbed and slope pre-reinforcement method is established, which consists of 4 first-grade evaluation indexes and 13 second-grade evaluation indexes. (3) aiming at the influence mechanism of highway roadbed and slope pre-reinforcement on highway traffic conditions, an evaluation system based on the number of driveway occupied by pre-reinforcement, the average speed at pre-strengthened work point and the time limit of pre-reinforcement is constructed. (4) the suitability of typical roadbed and slope pre-reinforcement methods (load reduction and backpressure technology, retaining structure measures, grouting measures) is analyzed and evaluated. 5. The decision method of highway roadbed and slope pre-reinforcement based on value engineering theory is put forward, and the decision model of roadbed and slope pre-reinforcement is established.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U416.1

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