1) grouting borehole
放射型钻孔
2) drainage with drilling hole
钻孔排放
5) Laser drill
雷射钻孔
6) S drilling hole
S型钻孔
1.
Due to the thick loose level of the downcast shaft Cenozoic group,the large depth of grouting,the requirement of high quality,the time limit for the project in the construction of the Southern Field of Guqiao Coal Mine,the straight hole and the S drilling hole were tied in wedlock each other to carry out the grouting technology,and got fine effects.
针对顾桥煤矿南区进风井井筒新生界松散层厚,注浆深度深、质量要求高、工期紧等特点,采用直孔与S型钻孔相结合的注浆施工技术,取得了良好的效果。
补充资料:5421-Ⅱ型放射性拣选机
5421-Ⅱ型放射性拣选机
趟’421一“型‘射…“机
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条