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钻孔封填是钻探工程的一项重要质量指标.封孔质量的优劣,直接影响到整个矿区的勘探质量和以后矿山开采的安全.封孔质量不好造成的损失不易及时或在短期内发现,所以人们往往不能予以足够重视.本文仅就水泥封孔中的一些问题作一简述与分析. 封孔中遇到的问题及分析对钻孔的封填,符合质量要求的就是指封填位置准确.水泥用量足够,透孔检查能取出圆柱状水泥芯.不合要求的有几种情况:水泥浆液不凝固,水泥浆液漏失,水泥用量不够.封填位置不准等.
Drilling and sealing is an important quality indicator of drilling engineering. The quality of sealing hole directly affects the exploration quality of the entire mining area and the safety of future mining. The loss caused by the bad sealing quality is not easy to be timely or in the short term. Found, so people often can not pay enough attention. This article only on cement sealing in a few issues and make a brief description and analysis. Sealed in the problems encountered and analysis of the drilling of the hole, in line with the quality requirements is to seal The filling position is accurate. The amount of cement is enough. Through-hole inspection can remove the cylindrical cement core. There are several situations that are unsatisfactory: the cement slurry does not solidify, the cement slurry leaks, the amount of cement is not enough, and the sealing position is not allowed.