【作者】 李生生； 梁化强；

【Author】 Li Shengsheng, Liang Huaqiang(School of Architecture and Civil Engineering,CUMT, Xuzhou, Jiangsu 221008)

【机构】 中国矿业大学建筑工程学院；

【摘要】 结合十多年来对井壁破裂机理的研究成果,确定了导致井壁破裂的主要原因是井壁附加力,分析了温度应力、地下水位下降等因素对井壁附加力的影响;列举了在特定环境下井壁破裂的原因,其中包括地质构造与运动、地震、井筒施工质量、井壁厚度不足等几方面。最后提出了几个值得进一步研究的问题。更多还原

【Abstract】 Based on ten years of researches on shaft lining fracture, it is found that the main cause of the shaft lining fracture is vertical additional stress. And the vertical additional stress is influenced by the thermal stress and drawdown. The other causes of the shaft lining fracture in some particular cases include tectonic structure and its movement, earthquake, quality of shaft lining, thickness of shaft lining, etc. In the end, some problems that should be further investigated in future are discussed.更多还原