基于全寿命周期成本的高速公路改扩建旧路交通设施再利用评价技术

发布时间：2018-10-10 13:09

【摘要】：随着我国经济发展,许多高速公路通行能力日趋不足,高速公路改扩建需求迫切及广泛,交通设施再利用是节约高速公路改扩建资源和成本的有效途径,与此同时交通设施再利用还是节能减排工程的有利表现。本文在考虑全寿命周期成本分析的前提下,对安全设施、绿化植被、机电设施进行了系统研究,主要做了以下几方面工作:1、本文结合国内外护栏的相关标准和实际工程,基于再利用的技术和全寿命周期经济要求,研究制定了护栏评价指标及方法,针对旧护栏防撞能力不足问题,提出护栏再利用改造方案,并对该方案就立柱埋深、混凝土标号确定、钢筋配筋、混凝土浇筑高度进行了详细的细节设计,并根据JTGD81-2006《公路交通安全设施设计规范》规范防撞能力要求,设计护栏冲击碰撞室内实验方案。选用LS-DYNA显式动力分析程序进行仿真模拟,对护栏改造方案的防撞性能进行了模拟仿真验证。最后基于全寿命周期对护栏改造方案的经济效益进行了计算和分析评价。2、绿化植被对于高速公路防眩、美化及防风固沙有着不可替代的作用,针对绿化植被再利用技术和全寿命周期经济要求,结合植被规格、质量标准提出其生长状况评价技术及检测方法,并介绍了植被再利用方案以及植被移植技术。最后通过对高速公路绿化全寿命周期经济效益评价,验证高速公路绿化再利用方案的可行性。3、机电设施作为高速公路不可或缺的一部分,其再利用研究在高速公路改扩建工程中是节约经济的有效手段。通过建立机电设施再利用质量检测技术评定方法,结合机电设施外观评价与性能测试,提出了再利用技术流程。并结合机电设施运行全过程建立了其全寿命周期成本分析理论。
[Abstract]:With the economic development of our country, the capacity of many expressways is becoming insufficient day by day, and the demand for expressway reconstruction and extension is urgent and extensive. The reuse of traffic facilities is an effective way to save the resources and cost of expressway reconstruction and extension. At the same time, the reuse of transport facilities or energy conservation and emission reduction project favorable performance. In this paper, the safety facilities, greening vegetation, mechanical and electrical facilities are systematically studied on the premise of life-cycle cost analysis. The main work is as follows: 1, this paper combines the relevant standards and practical engineering of the guardrail at home and abroad. Based on the reuse technology and the economic requirement of the whole life cycle, the evaluation index and method of the guardrail are studied and established. Aiming at the problem of insufficient anti-collision ability of the old guardrail, the reconstruction scheme of reusing the guardrail is put forward, and the depth of the column is buried in the scheme. The detailed design of concrete label, reinforcement and height of concrete pouring is carried out in detail. According to the JTGD81-2006 Code for Design of Highway Traffic Safety facilities, the indoor experimental scheme for impact of guardrail is designed according to the requirements of anti-collision capability. LS-DYNA explicit dynamic analysis program is used to simulate and verify the anti-collision performance of the guardrail reconstruction scheme. Finally, based on the whole life cycle, the economic benefits of the reconstruction scheme of guardrail are calculated and analyzed. 2. The greening vegetation plays an irreplaceable role in preventing glare, beautifying and preventing wind and sand fixation of highway. According to the requirements of greening vegetation reuse technology and whole life cycle economy, combined with vegetation specifications and quality standards, this paper puts forward the evaluation technology and testing method of its growth status, and introduces the vegetation reuse scheme and vegetation transplantation technology. Finally, by evaluating the economic benefits of the whole life cycle of expressway greening, the feasibility of expressway greening reuse scheme is verified. 3. As an indispensable part of expressway, mechanical and electrical facilities, The research of its reuse is an effective means to economize on economy in expressway reconstruction and extension project. Based on the establishment of the evaluation method of the reutilization quality testing technology of the electromechanical facilities, combined with the appearance evaluation and the performance test of the mechanical and electrical facilities, the technical flow of the reuse technology is put forward. The whole life cycle cost analysis theory is established based on the whole operation process of electromechanical facilities.
【学位授予单位】：河北工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U418.8

【共引文献】