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在勘探工作中,常有很多鑽孔發生湧水、及漏水現象,因此就給鑽孔封閉工作帶來了很大的困難。另一方面在封孔時,還要注意封孔的質量,否則,将會给以後鑛山的開發工作帶來許多困难。現根據我们的實際經驗,介紹几種封閉鑽孔的方法。封孔的方法,一股說來,可分為三類: 1.良好孔(指不湧水也不漏水的鑽孔)的封閉(圖1)。在鑽層以下用泥球或黄泥漿灌注。至鑛層
In the exploration work, often a lot of borehole gushing water, and water leakage, thus giving the drilling closed to work has brought great difficulties. On the other hand, when sealing a hole, the quality of the hole sealing should also be noticed; otherwise, it will bring many difficulties to the development work of the later mines. Now based on our practical experience, introduce several methods of closed drilling. Sealing method, in a word, can be divided into three categories: 1. Good hole (that is not water or water leakage drilling) closed (Figure 1). In the drill below the mud ball or yellow mud perfusion. To the mine