摘要
在掘进巷道顶板破碎、地质变化地段采用预应力拉杆支护实验,实验结果表明采用预应力拉杆支护降低了成本,减轻劳动强度,加快施工进度。
Prestressed pull-rod is adopted to support the cracked roof of roadway in adverse geological zone, gaining the results of reducing the production cost lowering labor intensity and quicken the construction schedule .
出处
《华北科技学院学报》
2006年第2期25-26,共2页
Journal of North China Institute of Science and Technology
关键词
井工开采
巷道支护
预应力拉杆
pit mining
roadway support
prestressed
pull-rod
