混凝土井壁水化热对白垩侏罗系地层冻结壁的影响 .pdf

学兔兔 煤 炭 工 程 201 1年第12期 混凝土井壁水化热对白垩侏罗系 地层冻结壁的影响 许 影，汪仁和 (安徽理工大学土小建筑学院，安徽淮南 232001) 摘 要：根据现场实测结果，对内蒙古东胜地区冻结法凿井混凝土井壁水化热对冻结壁的影 响规律进行分析和探讨。内壁浇筑水化热对冻结壁的影响不可忽略，其影响使得井帮处正温持续 时间较长，及侏罗系地层受其影响的冻结壁融化深度比白垩系地层要大200ram左右等结论。对 内蒙古地区冻结工法设计与施工具有重要意义。 关键词：冻结法凿井；内壁浇筑水化热；冻结壁；白垩系地层；侏罗系地层 中图分类号：TU528；TD265．3 文献标识码：B 文章编号：1671—0959(2011)12—0102—04 Hydrated Heat of Mine Shaft Concrete Liner Affected to Mine Shaft Freezing Wall in Cretaceous Jurassic Strata XU Ying，WANG Ren—he (School of Civil Engineering and Architecture，Anhui University( Science and Technology，Huainan 232001，China) Abstract：According to the site measured results，an analysis and discussion was conducted on the influence law of the hydrated heat from the concrete shaft liner to the freezing wall in the ground freezing shaft sinking in hmer Mongolia Dongsheng Area The hydrated heat from the pouring concrete of the shMI inner lineraffected to the freezing wall could not be ignored．The positive temperature at the mien shaft liner would be kept in a long time period． File thawing depth of the freezing wall affected in the Jurassic strata would be 200 mnl deeper than in the Cretaceous strata． Fhe analysis and discussion on the hydrated heat would have great significances to the design and construction of the ground freezing method in Inner Mongolia Area． Keywords：mine freezing shaft sinking；hydrated heat from poured concrete of shaft inner liner；mine shaft freezing wall； Cretaceous strata；Jurassic strata 随着国家西部大开发战略的进一步实施，内蒙地 煤