张石高速公路尾矿渣处理研究

张石高速公路涞源-曲阳段,沿线选矿厂排出的尾矿粉池及大面积采矿弃渣造成路基承载力低,地质条件不稳定等状况。对于尾矿渣处理可采用部分换填、全部换填或全部利用等处理方式。经过方案比较,确定全部利用尾矿渣,即进行翻挖后采用掺加水泥和土壤固化剂等进行改性后回填。

Research on mine tailings dispose of Zhangjiakou to Shijiazhuang highway

In the Laiyuan to Quyang section of Zhangjiakou to Shijiazhuang highway,the roadbed bearing capacity lower and geological conditions unstable due to the mine tailings expelled from dressing plant and large area of mining abandon slag along the line.For the mine tailings dispose,which can using the disposal measures such as partial replacement,completely replacement and all use,etc.Finally,determined to use all mine tailings after scheme comparison,that is,modified by mixing with cement and soil stabilizer a...