碳质板岩作为路基填料的可行性研究

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	英文篇名：Feasibility Study of Carbonaceous Slate as Subgrade Filler 作者：任冠桦 英文作者：REN Guanhua;Sichuan Huateng Road Test for Detection; 关键词：碳质板岩 ; 路基填筑 ; 试验 英文关键词：carbonaceous slate;;subgrade filling;;test 中文刊名：GCZL 英文刊名：Construction Quality 机构：四川华腾公路试验检测有限责任公司; 出版日期：2018-05-10 出版单位：工程质量 年：2018 期：v.36;No.334 语种：中文; 页：GCZL201805011 页数：3 CN：05 ISSN：11-3864/TB 分类号：45-47

摘要

九绵高速公路白马隧道洞渣碳质板岩居多,弃方困难,通过相关试验确定其能否用于路基填筑,以达到环境保护及弃方利用的目的。依据公路工程行业相关规定,应采用石料单轴抗压强度、界限含水率、承载比(CBR)、孔隙率、沉降差等相关试验参数确定石料本身性质。通过试验,确定碳质板岩相关检测指标满足规范要求,但由于本身稳定性较差(多层理、易滑移、结构易破坏),建议采取相应的处理措施后用于路基填筑。
        There is a lot of carbonaceous slate in Baima tunnel of Jiumian expressway,it was difficult to abandon the earthwork,and it was determined whether it can be used for subgrade filling through relevant tests to achieve the purpose of environmental protection and reuse abandoned parties. According to the relevant regulations of highway engineering industry,the properties of stone material are determined by uniaxial compressive strength,limiting moisture content,bearing ratio(California Bearing Ratio),porosity and settlement difference. Through the test,we can determine the relevant indicators of carbonaceous slate to meet the requirements of specifications. However,due to their poor stability(bedding,slippage,easy structural damage),it was suggested that the corresponding treatment measures should be taken for subgrade filling.

引文

[1]四川省交通运输厅公路规划勘察设计研究院.九寨沟(川甘界)至绵阳高速公路控制性工程(白马隧道)设计文件[Z].2016.
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    [3]交通部公路科学研究院.公路土工试验规程:JTG E40-2007[S].北京:人民交通出版社,2007.
    [4]中交集团第一公路工程局有限公司.公路路基施工技术规范:JTG F10-2006[S].北京:人民交通出版社,2007.