摘要
采煤工作面过坚硬断层时传统的预处理方式是爆破,不仅炸药使用量大,而且爆破工程量大、过断层速度慢。为了提高采煤工作面过断层速度,以某煤矿Ⅱ1036综采工作面过断层为例,采用水力压裂技术预处理坚硬断层。应用结果表明,采用水力压力技术能够有效压裂断层岩体,有利于提高工作面过断层速度。对于岩体较完整且较硬的区域进行水力压裂作业后,能够减少2/3的爆破孔数量,大大减少爆破工程量和炸药使用量;对于其他区域进行水力压裂作业后,不需要进行放炮处理,采煤机就能够正常截割。
The traditional pre-treatment method for coal mining faces passing through hard faults is blasting,which not only requires a large amount of explosives,but also involves a large amount of blasting work and a slow speed of passing through the fault.In order to improve the speed of coal mining face passing through faults,taking the example of theⅡ1036 fully-mechanized mining face passing through faults in a certain coal mine,hydraulic fracturing technology was used to pre-treatment hard faults.The application results indicate that the use of hydraulic pressure technology can effectively fracture fractured rock masses,which is beneficial for improving the velocity of working face passing through faults.After hydraulic fracturing operations are carried out in areas with relatively intact and hard rock masses,the number of blasting holes can be reduced by 2/3,greatly reducing the amount of blasting work and explosive usage.After hydraulic fracturing operations are carried out in other areas,there is no need for blasting treatment,and the coal mining machine can cut normally.
作者
李柱
王海军
孙雷
高鹏飞
赵建华
李浩杰
Li Zhu;Wang Haijun;Sun Lei;Gao Pengfei;Zhao Jianhua;Li Haojie(Inner Mongolia Limin Coal and Coke Co.,Ltd.,Ordos 016064,China;China University of Mining and Technology,Xuzhou 221116,China)
出处
《煤炭科技》
2025年第4期161-167,共7页
Coal Science & Technology Magazine
基金
国家自然科学基金资助项目(51974293)。
关键词
采煤工作面
过坚硬断层
预处理
水力压裂
coal mining face
passing through hard faults
pre-treatment
hydraulic fracturing
作者简介
李柱(1986-),男,新疆奎屯人,工程师,硕士,2013年毕业于西安科技大学,现任内蒙古利民煤焦有限责任公司总工程师,从事煤矿采掘技术管理工作。
