兖石线为国家Ⅰ级线路，自开通运营以来，由于各种因素，导致混凝土轨枕发生裂损甚至失效，给铁路安全生产造成威胁，与铁路高速重载的要求很不适应。现就兖石线混凝土轨枕裂损情况、成因分析和防治对策作简要介绍。１　兖石线混凝土轨枕裂损情况１．１　年失效率情况兖石线共 The Yanshi line is a national Class Ⅰ circuit. Since the commencement of operation, due to various factors, concrete sleepers have been cracked or even failed, posing a threat to the safety of railway construction, which is incompatible with the requirements of high-speed railway heavy-haul. Now on the Yanshi line of concrete sleepers crack damage, the causes of formation and prevention and control measures for a brief introduction. 1 Yanshi line cracks in concrete sleepers 1.1 failure rate Yanshi line total