煤矸石材料路用性能试验研究

发布时间：2018-03-08 13:54

本文选题：煤矸石　切入点：材料　出处：《河北工业大学》2014年硕士论文　论文类型：学位论文

【摘要】：煤矸石作为一种废弃材料，实际上是一种含有碳的岩石（一般含煤量约在20%左右）和其它岩石（如页岩、砂岩、砾岩等）的混合岩石材料。煤矸石废料的大量堆积，不仅占据了大量的耕地，而且还对周边环境产生污染。本文结合了工程实际项目的实践，在公路试验现场进行了相关实验，通过对国内外经验的双重借鉴，对煤矸石公路路基的实验室实验、弹塑性特性等进行了分析，并对煤矸石路基的应用前景提出了建议。目前为止，用煤矸石材料作为公路路基填筑材料，其要求的基本性能、相应的检测指标以及指标的检测方法和要求还都没有相应的标准依据，因此，在公路上用煤矸石作路基填料还没有大面积推广。因此，煤矸石在道路工程路基填筑中的工程应用，目前尚存在一定的主观性、经验性和随意性，，基本还处于一路一议的状态，而缺少对煤矸石材料作为公路路基填筑材料的系统科学研究和理论总结。随着山区公路建设和发展，在提高山区数量规模的同时，所要求的公路路面等级、路面的使用性能与质量都有大幅度的提高，由此造成的对路基工程质量要求也不容忽视。若要保证路基质量，其填料选择、施工工艺和施工质量控制是关键性的环节。
[Abstract]:As a waste material, coal gangue is actually a mixture of rock containing carbon (usually containing about 20% coal) and other rocks (such as shale, sandstone, conglomerate, etc.). It not only occupies a large amount of cultivated land, but also pollutes the surrounding environment. The laboratory experiments and elastoplastic properties of coal gangue roadbed are analyzed, and some suggestions on the application prospect of coal gangue roadbed are put forward. There is no corresponding standard basis for the corresponding detection index and the testing method and requirement of the index. Therefore, the coal gangue is not widely used as the subgrade filler on the highway. The engineering application of coal gangue in subgrade filling of road engineering still has some subjectivity, experience and randomness at present, and it is still in a state of discussion. However, there is a lack of systematic scientific research and theoretical summary of coal gangue as road subgrade filling material. With the construction and development of mountain highway, the performance and quality of highway pavement are greatly improved in order to improve the quantity and scale of mountain area at the same time. If the quality of subgrade is to be guaranteed, the selection of filling, construction technology and construction quality control are the key links.
【学位授予单位】：河北工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U414

【相似文献】