铁路隧道二衬混凝土裂缝原因分析及施工控制

Causes analysis and construction control of second lining concrete cracks of railway tunnel

简述了隧道二衬混凝土裂缝的特点,从温度裂缝、沉降裂缝、干缩裂缝等方面分析了隧道二衬裂缝形成的原因,并提出了裂缝的防治措施及处理方法,确保隧道衬砌的施工质量,从而保证铁路的正常运行。

The paper briefly illustrates tunnel second lining concrete cracking features, analyzes tunnel second lining concrete cracking causes form aspects of temperature cracks, subsidence cracks and shrinkage cracks, and puts forward cracks preventing measures and treatment meth-ods, so as to guarantee tunnel lining construction quality and to ensure normal railway operation as well.