铁路隧道机制砂生产经济技术研究  

Economic and Technical Research on Production of Machine-made Sand for Railway Tunnels

作　　者：房玉中[1] 陈晓成[1] 罗先刚[1] 徐世均[1] 

机构地区：[1]中铁隧道集团一处有限公司,重庆404100

出　　处：《公路交通技术》2016年第1期113-117,共5页Technology of Highway and Transport

基　　金：中铁隧道集团一处有限公司科技创新计划项目(201304)

摘　　要：随着国家工程建设的全面铺开,工程施工用砂(河沙)日益紧张,存在运距远、单价高等现象,给项目施工带来巨大的成本压力。以渝黔铁路天坪隧道进口段机制砂生产线为例,基于环境保护和经济发展的要求,对机制砂生产技术和经济效益进行研究,进一步推广其在铁路工程中的应用。With appearance of national project construction in full swing, sand （river sand ） for construction of projects in increasingly strained, phenomena such as long transport distance and high unit price, etc. exist, which bring huge cost pressure to construction of projects. With the production line of machine - made sand at inlet section of Tianping Tunnel on Chongqing - Guizhou Railway as an example, and based on the requirements of environmental protection and economic development, this paper studies production technology and economic benefit of machine - made sand, and further popularizes its application in railway projects.

关 键 词：铁路隧道 机制砂 机制砂混凝土 环水保 经济 

分 类 号：U455.3[建筑科学—桥梁与隧道工程]