北京城镇透水性步道结构型式与相关性能研究

【作者】 张爱江；

【导师】 张汎； 王晓江；

【作者基本信息】 北京市市政工程研究院 ， 市政工程， 2007， 硕士

【摘要】 随着经济的发展和城市建设步伐的加快，现代城市的地表逐渐被建筑物和不透水的道路所覆盖，形成生态学上的“人造沙漠”。在便捷的交通设施，平整的道路给人们带来极大方便的同时，不透水的路面也给城市的生态环境带来诸多负面影响。为减少不透水材料和道路对城市生态环境的不利影响，国内外开始关注透水道路的应用，透水环保型步道也正在逐渐成为研究的热点。目前，国内透水性步道的研究正处于起步阶段，研究的重点主要侧重于面层材料，缺乏对透水步道结构体系及综合性能的研究。本研究生课题针对透水步道研究和应用现状，对其进行了较为系统的分析及研究，并进行了模型试验和试验段铺设。本课题研究表明：①透水步道在环保方面有普通步道不可比拟的优势，可以补给地下水源，改善城市生态环境；②透水性步道要形成完整的技术体系；③透水步道基层材料可以有多种选择，关键在强度、稳定性和透水性；④路基选择要慎重，应该保证透水性和承载力的平衡；⑤透水步道设计和施工与普通步道不同，应用过程中应当特别注意。作者还根据研究，提出了建议用于北京地区的透水步道的典型材料和结构。通过对透水性步道材料和结构较系统的研究，作者希望能对透水性步道的设计、施工提出指导性意见，并为进一步的研究和应用奠定基础。更多还原

【Abstract】 With the rapid development of the economy and the construction of our city, the earth’s surface is covered with buildings and waterproof roads. This has formed the so-called "artificial desert". The bad effects create many environmental and social problems while people have convenient communications and flat roads. For the purpose of reducing the bad effects, the permeable roads are concerned and are becoming hot topic in the world.Now, the researches about permeable road are just at the initial stage and are only focusing on the road surface and the materials. There are few researches into systems of the permeable road and their comprehensive functions. According to the model experiment and road test, the author makes a systematic study on the permeable roads.The results show:①Permeable roads are better than conventional roads in aspects of groundwater supply and the improvement of our environment;②Permeable roads must be a system;③Many materials can be chosen as the sub-base of the permeable roads and the key is that of their strength, stability and permeability;④It is important to select the materials of the subgrade and to keep the balance of the permeability and the stability.⑤The design and construct methods of the permeable roads and conventional roads are different.In addition, typical materials and structures of permeable roads that can be used in Beijing are brought forward in this paper.According to the systematic study on the materials and structures of the permeable roads, the author hopes to make some suggestions on design and construct of the permeable roads and lay the foundations of future researches and applications.更多还原