国家自然科学基金项目No.51504256;金属矿山安全与健康国家重点实验室基金资助No.zdsys006;国家重点基础研究发展计划No.2013CB227903.This work was supported by the National Natural Science Foundation of China51504256, the Open Fund of the State Key Laboratory of Safety and Health for Metal Mineszdsys006 and the National Program on Key Basic Research Project of China2013CB227903.