CAJ | 학술논문

某铜矿节理裂隙发育，矿体围岩极其破碎，炮孔成孔率低，需大量加固支护，优选美固MP 364矿用树脂进行现场化学注浆试验，确定注浆压力及扩散半径等参数，建成注浆工艺系统。现场工业应用表明：按照推荐注浆材料配比及工艺施工，岩体强度得到极大提高，炮孔成孔率提高25%，采场顶板允许暴露面积增大110 m2，采场中矿石滞留量减少约10%，矿石回收率提高23.3%，实现加固矿体，提高炮孔成孔率，增大矿石回收率的目标。
모동광절리렬극발육，광체위암겁기파쇄，포공성공솔저，수대량가고지호，우선미고MP 364광용수지진행현장화학주장시험，학정주장압력급확산반경등삼수，건성주장공예계통。현장공업응용표명：안조추천주장재료배비급공예시공，암체강도득도겁대제고，포공성공솔제고25%，채장정판윤허폭로면적증대110 m2，채장중광석체류량감소약10%，광석회수솔제고23.3%，실현가고광체，제고포공성공솔，증대광석회수솔적목표。
The joint fissures of a copper mine is very well developed with the fragmental surrounding rock and ore body. The success rate of drilling holes for explosive installation was low,so reinforcement was needed. The explosion resistant resin MP 364 for mine applications was selected for the chemical grouting test in-situ. The grouting pressure and the diffusion radius etc were determined experimentally. A grouting system was built based on the experimental results. After the application of the chemical grouting according to the recommended proportion of grouting materials,the rock mass strength was improved significantly,the success rate of drilling holes for explosive installation was increased by 25%,the exposed area of the stope roof was increased by 110 m2,the retention volume of the stope ore was reduced by about 10%,and the ore recovery ratio was increased by 23.3%.