right turn charging pressure

Learning from the successful experience in expressway passing through coal mine-out area,based on a scientific analysis,appraisal was made the mine-out area deformation and the stability of cover rock in the area,and full filling pressure grout injection method was adopted as the engineering measure for pe.

借鉴高速公路煤矿采空区的成功处理经验,通过科学分析,对采空区变形和区域内覆岩的稳定性做了评价,论述了输水线路穿采空区段采取全充填压力注浆法的工程处理方法。

This paper introduces the main methods,raw materials needed and equipment requirements of treating the mined-out area under the superhighway by using full-caving pressure-grouting method,and expounds the methods for the technical control,raw materials test and construction quality control in the construction.

介绍了采用全充填压力注浆法处置高速公路下伏煤矿采空区的主要方法、需用原材料、设备要求,论述了施工中的工艺控制、原材料试验以及施工质量检验等的方法。