阜新市就地冷再生技术应用研究和经济评价

发布时间：2018-01-23 14:38

本文关键词： 就地冷再生应用研究可持续发展经济技术评价　出处：《辽宁工程技术大学》2014年硕士论文　论文类型：学位论文

【摘要】：阜新经过多年的艰难转型后,经济迅速增长,生态环境得到改善。公路是经济发展的重要媒介,阜新政府每年都要投入大量的财力和物力用于公路的维修和养护。巨大却必要的开支使公路在促进阜新迈向复苏的同时,也减缓了经济增长的速率。同时,大量砂石树木的开采也违背了阜新“构建园林城市”的初衷。就地冷再生技术经济、环保,阜新地区虽有很多施工实例,但尚未形成完整的理论体系。因此,为了适应阜新经济发展和环境保护的需求,本文重点对就地冷再生技术展开研究,使这项技术更好地服务于阜新的发展。本文以阜新市育红路到迎宾大街主干路的基层就地冷再生项目为工程实例,按照设计、施工、评价的顺序对就地冷再生技术进行研究,共分为四个阶段：方案设计阶段,以试验路为例阐述了大修方案的选择依据和方法,总结出设计流程和步骤；配合比设计阶段,分析了旧路铣刨料的级配组成,测定了不同水泥掺量下试件的最大干密度和最佳含水率,以无侧限抗压强度为强度标准,确定试验路的水泥掺量为5%或6%均可,粗骨料掺量为15%最佳；施工阶段,通过试验路的铺筑,详细阐述了就地冷再生的施工工艺,形成了较完整的施工理论体系。评价阶段,分析了就地冷再生技术的可行性、经济合理性和社会效益。评价其社会效益时,提出社会效益可分为对于社会的经济效益和对于生态的环境效益两方面,并重点对环境效益作出论证,提出并论证了可以将可持续发展理论作为评价就地冷再生技术环境效益的理论依据,同时引入技术清洁性概念,指出技术清洁性是可持续发展理论技术层面的体现,技术清洁性作为评价就地冷再生技术的环境效益切实可行,并给出评价技术清洁性的参考指标。最后,基于可持续发展理论对就地冷再生技术的环境效益进行了评价,结果表明就地冷再生技术具有技术清洁性,体现了技术的可持续发展。通过工程的实施和对就地冷再生技术的技术经济评价可以得出：就地冷再生技术能够适应阜新发展的各项要求,节省经济开支,符合阜新发展绿色生态的理念,具有可持续性,应在阜新地区大力推广,必将为阜新带来不可估量的经济和环境效益。
[Abstract]:After many years of difficult transformation, Fuxin has witnessed rapid economic growth and improved ecological environment. The highway is an important medium for economic development. Fuxin government has to invest a lot of financial and material resources in highway maintenance and maintenance every year. The huge but necessary expenditure makes the highway promote the recovery of Fuxin, but also slow down the rate of economic growth. At the same time. The exploitation of a large number of sand and stone trees is also contrary to the original intention of "building garden city" in Fuxin. Although there are many construction examples in Fuxin area, the local cold regeneration technology is economical and environmental protection, but it has not yet formed a complete theoretical system. In order to meet the needs of economic development and environmental protection in Fuxin, this paper focuses on the research of in-situ cold regeneration technology. This technology can better serve the development of Fuxin. This paper takes the local cold regeneration project from Yuhong Road to Yingbin Street in Fuxin City as an engineering example, according to the design, construction. Research on in-situ cold regeneration technology is carried out in the order of evaluation, which is divided into four stages: the design stage. Taking the experimental road as an example, the selection basis and method of the overhaul scheme are expounded, and the design process and steps are summarized. In the phase of mix ratio design, the gradation composition of the old road milling planer is analyzed, the maximum dry density and the optimum moisture content of the specimen under different cement content are measured, and the unconfined compressive strength is taken as the strength standard. The cement content of test road is 5% or 6%, and the content of coarse aggregate is 15%. In the construction stage, through the paving of the test road, the construction technology of local cold regeneration is expounded in detail, and a relatively complete construction theory system is formed. At the evaluation stage, the feasibility of the in-situ cold regeneration technology is analyzed. When evaluating the social benefits, the social benefits can be divided into two aspects: the economic benefits for the society and the environmental benefits for the ecology, and the emphasis is on the demonstration of the environmental benefits. The theory of sustainable development can be used as the theoretical basis for evaluating the environmental benefits of in-situ cold regeneration technology. At the same time, the concept of technology cleanliness is introduced. It is pointed out that the technical cleanliness is the embodiment of the theory and technology of sustainable development, and the technical cleanliness is feasible to evaluate the environmental benefit of the in-situ cold regeneration technology, and the reference index for evaluating the cleanliness of the technology is given. Based on the theory of sustainable development, the environmental benefits of in-situ cold recycling technology are evaluated. The results show that the in-situ cold recycling technology has the technical cleanliness. Through the implementation of the project and the technical and economic evaluation of the local cold regeneration technology, it can be concluded that the local cold regeneration technology can adapt to the requirements of the development of Fuxin and save economic expenses. In accordance with the concept of developing green ecology in Fuxin, it is sustainable and should be popularized in Fuxin area, which will bring inestimable economic and environmental benefits to Fuxin.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U416.26

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