三山岛金矿井下无人开采区域中深孔落矿嗣后充填连续采矿工艺设计

为了建成国内首个井下无人采矿示范区,在三山岛金矿西山矿区选取-630 m中段至-645 m中段作为试验采场.通过工程地质调查,结合矿床地质、工程地质与岩石力学基础资料以及无人采矿设备的应用,提出采用下向中深孔落矿嗣后充填连续采矿法.该采场方法的各个开采中段与主斜坡道相通,设备可在各个中段之间按照开采计划进行调度;中段通...

Design of the Medium-deep Hole Caving and Subsequent Filling Continuous Mining Technology in Underground Unmanned Mining Area of Sanshandao Gold Mine

The development of China’s mineral resources has gradually entered the depths，the difficulty of mining has increased significantly，and the safety risks have increased.At the same time，the ageing of China’s underground employees is serious and it is difficult to continue.The development of intelligent and even unmanned mining technology，reducing underground personnel，and improving production efficiency and safety are the inevitable choice and the only way for China’s deep resource extraction.At present，most of China’s metal mines have been mechanized and gradually developed toward intelligence.In order to build the country’s first underground unmanned mining demonstration area，the middle section of -630 m to -645 m was selected as the test stope in the Xishan mining area of the Sanshandao gold mine.The traditional mining method has a complicated mining process，and it is difficult to meet the work and scheduling of various unmanned equipment.Therefore，the continuous mining technology of the unmanned mining area in Sanshandao gold mine was studied.The design adopts downward medium-deep hole caving and subsequent filling mining method.The specific mining work of the mining method includes：The remote-controlled rock drill enters the rock-drilling tunnel in the section through the auxiliary ramp，and digs downward fan-shaped holes；The charge is filled with the detonating bomb unmanned filling system，the wireless detonation network and the remote control detonation system are built，realize remote initiation；Local fan forced ventilation is used for stope ventilation to ensure clear and visible equipment operating environment；Use unmanned scrapers to enter the stope for shoveling and loading of ore；After each mining room is completed，the filling work is carried out；After subsection mining is over，proceed to the next subsection.The unmanned continuous mining process covers the continuous unmanned operation process of each process of “digging-mining-transporting-filling-assisting”.This mining method can effectively guarantee the safe，efficient and continuous production and operation of multiple types of unmanned mining equipment，and the mine production capacity should be improved while safety of mine production is ensured，which will promote the future development of China’s mining intelligence.