摘要
介绍近二年多来在梅山铁矿进行的声波探测及得出的巷道围岩松动区规律，提出围岩的分类及锚喷支护参数的设计方法。着重论述一发双收干孔声波探测保证软岩中松动区测定的准确性；论述金属矿山大松动区软岩巷道采用悬吊与承载拱联合支护理论设计锚喷支护参数的合理性。并对巷道维护中考虑岩石蠕变性和优化巷道断面尺寸等问题进行探讨。
On the basis of the acoustic detection in Meishan Iron Mine done in recent two years,the law of the loosened wall rock area of openings is drawn,the rock classification and the designing method of the parameters of rockbolting and grouting support are suggested and good results have been achieved.The paper highlights the accuracy of the measurement in loosened area in soft rock assured by the acoustic detection of one emission-double receiving in dry holes and the rationality of designing support parameters by applying the combining support theory of hanging and carrying arc for large loosened areas in soft rock openings of metal mines and discusses the rock creep and the optimization of the sectional shape and dimensions of openings in their maintenance.
出处
《金属矿山》
CAS
北大核心
1999年第7期3-6,共4页
Metal Mine
基金
冶金部科研项目
关键词
巷道
围岩松动
锚喷支护
巷道支护
铁矿
Loosened wall rock area of openings,Rockbolting and grouting support,Acoustic detection of dry hole,Combined support theory of hanging and carrying arc
