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探讨了高等级公路在采动影响下的地面维修措施和井下开采措施。其中地面维修措施主要包括加高路基、加宽路基、灌浆处理采动裂缝;调整超限的坡度、竖曲线、平面圆曲线和超高;修理不平整的路面和损坏的涵洞;采动前在水泥混凝土路面上设置变形缝,减小水泥混凝土路面单体的长度,以增大抵抗水平变形的能力;对重要的涵洞进行采前加固或改为管涵,以增加涵洞抗变形的能力;对下沉的桥梁抬高、加大桥墩,以满足洪水时的过水断面等。井下开采措施主要有:采用柱式开采、充填开采和离层注浆减沉等措施以减小地表沉陷;也可恰当地布置工作面,使路基、桥、涵所受变形最小;对特别重要的桥、涵还可留设保护煤柱等。
The ground maintenance measures and downhole mining measures under the influence of mining are discussed. Among them, the ground maintenance measures mainly include increasing the embankment, widening the embankment and grouting to deal with mining cracks; adjusting overrun slope, vertical curve, plane circular curve and ultra-high; repairing irregular road surface and damaged culvert; Set the deformation joints on the cement concrete pavement to reduce the length of the cement concrete pavement to increase the ability to resist horizontal deformation; strengthen or replace the important culverts before mining to increase the anti-deformation capacity of the culvert; Subsidence of the bridge elevation, increase the piers to meet the cross-section of the flood and other water. Downhole mining measures are: the use of column mining, filling mining and off-site grouting sinking and other measures to reduce surface subsidence; also be properly laid face, so that subgrade, bridge, culvert suffered the least deformation; of particular importance Of the bridge, Han also set aside to protect the pillars and so on.