白垩系地层冻结壁温度和压力实测分析

In-situ measurement and analysis on the temperature and stress of freezing wall in Cretaceous stratum

为解决内蒙古海子矿井白垩系地层采用冻结法凿井出现的技术难题,在施工过程中对冻结壁的温度和受力进行现场监测,获得了冻结温度和压力的实测数据,分析得出白垩系地层冻结温度和压力的变化规律。

In order to solve the technical problems of freeze sinking in Cretaceous stratum in Haizi Mine in Inner Mongolia, in-situ measurement on the temperature and stress of freezing wall was conducted during the process of shaft sinking. Then the field data of freezing pressure and temperature was obtained, from which the changing law of freezing pressure and temperature was acquired. The result has an important guiding significance for the design and construction of freezing shaft and project optimization in special strata in Inner Mongolia.