钻孔水力采矿法是开采地下固体矿物用的地球工艺开采方法,俗称无矿井开采法。其实质是:用高速喷射高压水流破碎孔底矿层,再将所形成的矿浆泵至地表。此法用于开采软而松散的弱胶结矿物最为有效。为强化矿石的破碎作用,还可辅以爆破、振动、胶结物的化学或生物分解作用。用钻孔开采各类矿石的研究最早始于本世纪初,现已被美国有关部门研究,成功地用开采非金属矿石。美国佛罗里达州的一种沉积型非金属矿床,埋藏浅,适于露采。传统的开采方法是:用索斗铲采掘矿石至集矿坑,矿石经高 Drilling hydraulic mining method is the exploitation of underground solid mineral earth technology mining methods, commonly known as non-mining method. Its essence is: high-speed jet high-pressure water flow hole bottom broken, and then the resulting slurry pump to the surface. This method is most effective for mining soft, loose, weakly cemented minerals. To strengthen the role of ore crushing, but also supported by blasting, vibration, cement chemical or biological decomposition. The study of drilling various types of ores with diamonds began at the beginning of this century and has been studied by the relevant departments in the United States and the mining of non-metallic ores has been successfully used. A sedimentary nonmetallic deposit in Florida, USA, which is shallow buried and suitable for opencasting. The traditional method of mining is: mining shovel mining shovel pit with ore, ore by high