一、施工矿区泥浆漏失简况我队施工的某矿区,钻进第四纪破碎带地层,泥浆大量流失,以往采用粘土加锯末等作成直径为40~50毫米泥球,从孔口投入孔内,每投5~6米,用下端带脑袋的粗径钻具捣实,直至泥球填至孔口。但钻穿泥球到孔底后又漏失。某孔孔深150米,遇0．5米的大裂缝,泥浆很快漏完,用泥球反复堵漏20多天,投入泥球多达三汽车,均未奏效。加之,山高路陡,运输困难,造成人、物力损失,影响了生产。 I. Brief Introduction of Mud Lost in Construction Mines A certain mine area constructed by our team drilled into the Quaternary crustal strata with a large amount of mud loss. In the past, mud balls with a diameter of 40 to 50 mm were made from clay and sawdust, Each vote 5 ~ 6 meters, with the bottom of the head with a large diameter drill tamping, until the mud ball to the orifice. However, drilling mud balls to the bottom of the hole after the leak. A hole depth of 150 meters, in case of a 0.5-meter large cracks, the mud quickly drain finished, with mud balls repeatedly plugging more than 20 days, throwing mud balls up to three cars, did not work. In addition, the steep mountain road, transport difficulties, resulting in loss of human and material resources, affecting the production.