1、2700 英文单词，英文单词，13500 英文字符英文字符，中文中文 4000 字字 文献出处：文献出处：Olaleye B M. Influence of some rock strength properties on jaw crusher performance in granite quarryJ. Mining Science and Technology (China), 2010, 20(2): 204-208. Influence of some rock strength properties on jaw crusher performance in granite qu
2、arry OLALEYE B M Abstract The influence of rock strength properties on Jaw Crusher performance was carried out to determine the effect of rock strength on crushing time and grain size distribution of the rocks. Investigation was conducted on four different rock samples namely marble, dolomite, limes
3、tone and granite which were representatively selected from fragmented lumps in quarries. Unconfined compressive strength and Point load tests were carried out on each rock sample as well as crushing time and size analysis. The results of the strength parameters of each sample were correlated with th
4、e crushing time and the grain size distribution of the rock types. The results of the strength tests show that granite has the highest mean value of 101.67 MPa for Unconfined Compressive Strength (UCS) test, 6.43 MPa for Point Load test while dolomite has the least mean value of 30.56 MPa for UCS test and 0.95 MPa for Point Load test. According to the International Society for Rock Mechanic (ISRM) standard, the granite rock sample may be classified as having very high strength and dolomite ro
