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我厂２号焦炉的烟囱为钢筋混凝土结构，其顶部标高为１００ｍ，基底标高为－６．６ｍ，于１９９０年投入使用。在１９９９年的检查中发现，该烟囱基础部位出现环状裂缝，局部出现空鼓层，直接影响焦炉生产，也威胁四周工作人员的安全。１原因分析通过对烟囱进行测温、化验、有
The chimney of No. 2 coke oven in our factory is a reinforced concrete structure with a top elevation of 100m and a base elevation of -6.6m. It was put into use in 1990. In the inspection of 1999, it was found that a ring-shaped crack appeared at the base of the chimney, and an empty drum layer appeared locally, which directly affected the production of the coke oven and also threatened the safety of workers around them. 1Cause analysis By measuring the temperature and testing the chimney, there is