阿克塞石棉矿覆盖层废石用于道路工程探讨  

Exploring the use of asbestos mine overburden waste rock for road projects in Aksai

作　　者：张军林 魏定邦 李永春 武旭 王亚鹏 袁文金 秦宏涛 ZHANG Junling;WEI Dingbang;LI Yongchun;WU Xu;WANG Yapeng;YUAN Wenjin;QIN Hongtao(Gansu Transportation Planning Survey and Design Institute Co.,Ltd.,Lanzhou 730030;Gansu Province Solid Waste Resource Highway Reuse Technology Engineering Research Center,Lanzhou 730030)

机构地区：[1]甘肃交通规划勘察设计院有限责任公司,甘肃兰州730030 [2]甘肃省固体废弃物资源公路再利用技术工程研究中心,甘肃兰州730030

出　　处：《中国建材科技》2025年第1期65-71,共7页China Building Materials Science & Technology

基　　金：甘肃省科技重大专项(编号:21ZD3GA002);宁夏重点研发计划项目(编号:2022BFE02006,2022BEG02009)。

摘　　要：甘肃阿克塞县现存超过5亿t石棉尾矿,如果将其用于公路工程,不仅解决了石棉尾矿堆存造成的环保问题,还能降低工程造价。本文通过现场调研、查阅法规、国内外研究现状分析和石棉矿覆盖层废石集料性能检测,结果发现,废石主要矿物为蛇纹岩,属富镁硅酸盐矿物,废石集料性能检测指标均满足相关规范要求。石棉尾矿会造成空气污染,并存在水体土壤污染的可能性。石棉尾矿作为道路工程集料,资源化利用的主要难点是加工、运输和施工过程中的粉尘污染对人的健康有巨大威胁。随着交通业无人施工技术完善和石棉尾矿作为道路材料研究的深入,将石棉尾矿应用于道路建设、实现资源化再利用有良好前景。There are over 500 million tons of asbestos tailings in Aksai,Gansu.If they are reused in highway engineering,it not only solves the problems caused by asbestos tailings storage,but also reduces the project costs.This paper conducts on-site research,reviews relevant regulations,investigates the current research status at home and abroad,and tests the aggregates performance of waste rock in asbestos mine covering layers.The results show that the main mineral in the waste rock is serpentinite,which belongs to magnesium rich silicate minerals.The testing indicators for the performance of waste rock aggregates meet the requirements of relevant specifications.Asbestos tailings can cause air pollution,and there is also a possibility of water and soil pollution.The main difficulty in the resource utilization of asbestos tailings as road engineering aggregates is the threat to the health of construction personnel caused by dust pollution generated during tailings processing,transportation,and construction processes.With the improvement of unmanned construction technology in the transportation industry and the deepening of research on asbestos tailings as road materials,the resource utilization of asbestos tailings in road construction has good prospects.

关 键 词：石棉尾矿 蛇纹岩 综合利用 道路集料 环境保护 

分 类 号：X754[环境科学与工程—环境工程]