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我国矿山在竖井工作面预注浆技术方面积累了一定的经验,但因各地水文地质条件不一、注浆工艺与参数各异、技术水平和所用机具不同等原因,注浆效果差别很大,存在不少问题。本文拟就裂隙基岩工作面预注浆中的若干问题作一些讨论。一、地质与水文地质地层的地质与水文地质条件直接影响着注浆方案、浆液种类、施工工艺及注浆参数的确定,因此也就关系着注浆的成败。裂隙性地层在其补给水源确定后,含水不均是它的最大特点,其富水性与构造裂隙
China’s mine has accumulated some experience in pre-grouting technology in the shaft face, but grouting effect varies greatly due to different hydrogeological conditions, different grouting technology and parameters, different technical levels and different tools used, There are many problems. This article intends to discuss some problems in pre-grouting of fractured bedrock face. First, the geological and hydrogeological geology of geological and hydrogeological conditions directly affect the grouting program, the type of slurry, construction technology and grouting parameters to determine, it also relates to the success of grouting. Fissured strata in its supply of water to determine, uneven water is its most important feature, its water-rich and structural fractures