Experimental and Equipment Application of Hydrostatic Pressure in the Coal Bed of Lu Ling Mine
WEI Yao
JU Hai-yang
Abstract：In order to improve the situation of difficulty of hole sealing , complex process and sloughing in stat-ic pressure water injection in soft coal seam shallow hole , this paper carries on the experiment of static pres-sure water injection in Ⅱ925 fully mechanized working face of the representative Lu Ling coal mine .Based on the theory of coal seam water injection and the actual situation of coal seam , it designs the scheme of water in-jection in coal wall shallow hole .Through the five different pressure test , and based on the comparison and a-nalysis of experimental results and screening , experiments were carried out under four different pressure with active agents.The experimental results show that the low pressure with active agent can improve the water in -jection rate of the coal seam , shorten water injection time and reduce the risk of failure in the soft coal seam . By comparison , it is concluded that the low pressure with active agent static pressure water injection process is simple , the cost is lower , the success rate of water injection is higher , and it can improve the situation of seal-ing of the hole and sloughing and so on .
Keywords：soft coal seamstatic pressure water injectiontheory of water injectioncomparison and analy-sisactive agent
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 45-49 )