摘要
通过实地考察、地质勘探、采空区内探测解析及相关试验分析,取得阳-盂高速公路采空区内的相关地质条件、范围及形态;通过现场取芯确定采空区范围内相关物理力学参数;通过点载荷试验确定采空区内层状分布特点;最终依据采动覆岩的空间“三带”范围及地基荷载传递原理,对阳泉至盂县高速公路煤矿采空区地表稳定性进行分析。
The relevant geological conditions,scope and form in the goaf of Yangquan-Yuxian expressway are obtained through the field investigation,geological exploration,exploration and analysis in the goaf and relevant test analysis.The relevant physical and mechanical parameters within the goaf are determined through on-site coring.The layered distribution characteristics in the goaf are determined by point load test.Finally,the earth surface stability of coal mine goaf of Yangquan-Yuxian expressway is analyzed according to the spatial"three zones"range of mining overburden and the principle of foundation load transfer.
作者
马亚坤
Ma Yakun(Hebei Reach Traffic Engineering Consulting Co.,Ltd.,Shijiazhuang 050021,China)
出处
《北方交通》
2021年第10期69-72,共4页
Northern Communications
关键词
公路工程
煤矿采空区
点载荷试验
空间“三带”
地基荷载传递
Highway Engineering
Coal mine goaf
Point load test
Spatial"three zones"
Foundation load transfer
