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(一) 一般的敍述一、取样方法的种类及其实質 現在的取样方法有全巷法,打眼法,抓取法,剝层法,刻槽法,方格法等六种。取样的正确与否取决于取样的数量与取样点的分佈范圍。以下試从这一角度來分折一下各种取样方法的实質。 1.全巷法取样就是在一定地段將爆落矿石全部或选取其1/5—1/10来作为样品。 2.打眼法取样就是用集尘器在凿岩过程中收集岩石的尘泥作为样品。 3.抓取法取样就是在掌子面放砲后在崩落的矿石堆上
(A) of the general description of a sampling method of the type and essence of the sampling method now has the whole alley, eye 打法, crawling law, peel method, notch method, the grid method six. Correct sampling depends on the number of samples and the sampling point distribution. The following trial from this point of view to take a look at the essence of a variety of sampling methods. 1. The whole law sampling is in a certain area will blast off the ore all or choose 1 / 5-1 / 10 as a sample. 2.Black method sampling is the use of dust collectors in the process of drilling rock dust collected as a sample. 3. Crawl Sampling is shot in the face after the collapse of the heap ore