山东国土资源
山東國土資源
산동국토자원
LAND AND RESOURCES IN SHANGDONG PROVINCE
2014年
1期
51-54
,共4页
鲁村煤矿%钢管混凝土支架%井底车场%巷道支护%沂源县
魯村煤礦%鋼管混凝土支架%井底車場%巷道支護%沂源縣
로촌매광%강관혼응토지가%정저차장%항도지호%기원현
Lucun coal mine%steel tube frame%truck yard%roadway support%Yiyuan county
沂源县鲁村煤矿270 m井底车场围岩为泥质粉砂岩，强度低，含粘土矿物，吸水膨胀，传统的支护方式难以保证巷道稳定，采用钢管混凝土支架进行支护试验。分析了270 m井底车场围岩地质特征，提出基于钢管混凝土支架的综合支护方案，最后通过理论验算证实钢管混凝土支架承载能力为U29型钢支架4倍，满足巷道支护要求。
沂源縣魯村煤礦270 m井底車場圍巖為泥質粉砂巖，彊度低，含粘土礦物，吸水膨脹，傳統的支護方式難以保證巷道穩定，採用鋼管混凝土支架進行支護試驗。分析瞭270 m井底車場圍巖地質特徵，提齣基于鋼管混凝土支架的綜閤支護方案，最後通過理論驗算證實鋼管混凝土支架承載能力為U29型鋼支架4倍，滿足巷道支護要求。
기원현로촌매광270 m정저차장위암위니질분사암，강도저，함점토광물，흡수팽창，전통적지호방식난이보증항도은정，채용강관혼응토지가진행지호시험。분석료270 m정저차장위암지질특정，제출기우강관혼응토지가적종합지호방안，최후통과이론험산증실강관혼응토지가승재능력위U29형강지가4배，만족항도지호요구。
Country rocks in the depth of -270m in Lucun coal mine is muddy siltstone rock with low inten-sity.It contains clay minerals and water swelling.By using the traditional supporting way,it is difficult to guarantee stability of the roadway.Thus,supporting test has been carried out by using concrete filled steel tube stents.Geological characteristics of country rocks in truck yard at the depth of 270m has been ana-lyzed,and comprehensive supporting scheme based on steel concrete frame has been put forward.Finally, it is confirmed theoretically that carrying capacity of concrete filled steel tubular frame are four times of U29 steel supports,and can meet the requirements for roadway support protection.
