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随着采矿事业的不断发展,矿山井巷工程也正在向深部发展。据我国采用注浆法施工的:二十几个井筒的统计,其中井筒深度200～500米的约占65％,500米以上的井筒所占比重正在增加。北票台吉煤矿主井井深925.1米,金属矿山目前井筒深度也超过了800米。深部地层岩层裂隙的高压涌水给井巷掘砌带来困难,因此如何解决深井高压涌水的水害、提高预注浆的效果是确保安全生产、加快井巷掘进所必须研究的重要课题。井筒深部涌水水压高、水量大、温度高。涌水裂隙虽以小裂隙为主,但也有少数大裂隙存在,因此在选择注浆参数和施工方
With the continuous development of mining, mine shaft project is also developing to the deep. According to China’s use of grouting method of construction: more than two dozen wellbore statistics, of which about 200% of the borehole depth of about 65%, the proportion of wellbores above 500 meters is increasing. Beijiao Taiji mine main well depth of 925.1 meters, the current mine shaft depth of more than 800 meters. Therefore, how to solve the water damage caused by high pressure gushing water and improve the effect of pre-grouting is an important issue that must be studied to ensure safety in production and speed up tunneling. High water pressure in deep wellbore, water volume, high temperature. Although the gushing fissures are mainly small fissures, there are also a few large fissures, so when choosing the grouting parameters and the construction side