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祁南矿副井冻结井壁夹层乳化沥青注浆新技术 ,对提高井壁施工质量起到积极促进作用 ;为今后更好地改进华东地区井壁结构 ,解决深厚表土段井筒因附加力作用和地表沉降而遭受破坏这一难题提供了一种新的途径与方法。
The new technology of side-wall frozen emulsified asphalt slurry injection in Qinan coal mine has a positive effect on improving the quality of shaft lining construction. In order to improve the structure of borehole in East China better in the future and to solve the problem caused by the additional force, Surface subsidence and destruction of this problem provides a new way and method.