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钻孔水泥灌注是钻孔封孔和护孔堵漏最常用的一种方法,这是因为它的材料——水泥来源广,操作简单方便之故。 钻孔水泥灌注虽然简单,但在实际工作中也有不少失误。如七十年代我局的贤按矿区的封孔大返工;前几年新华矿区检查四个孔有三个孔水泥凝结不好;最近芒场矿区有一孔封孔检查,发现上下都结,中间不结;汪门矿区有一孔护孔,进行了多次水泥灌注,历时一个多月,但每次的情况都是上面结,下面不结,水泥护孔没有成功,最后只好改用腈凝护孔。
Drilling cement injection is the most common method for hole sealing and hole sealing. This is because of its material, which has a wide source of cement and is easy to operate. Although drilling cement perfusion is simple, there are many mistakes in practical work. For example, in the 1970s, the magistrate of our bureau reworked the hole in the mining area; in the previous years, the Xinhua Mining Area inspected the four holes with three holes and the cement coagulation was not good; recently, the Mansardite mining area had a hole-sealing inspection, and it was found that both the upper and lower ends were knotted. The knot; Wangmen mining area has a hole retaining hole, carried out a number of cement injection, which lasted more than a month, but each time the situation is above the knot, the following is not knot, cement retaining hole did not succeed, and finally had to use nitrile coagulation hole .