立井井筒水灾之井壁重复破裂的机理分析  

Analysis of the Shaft Wall Repeated Rupture Mechanism on Shaft Flood

作　　者：魏玉怀[1] 经来旺[2] 杨仁树[3] 李清[3] 郝朋伟[2] 张宏学[2] 

机构地区：[1]淮北矿业集团公司许疃煤矿,安徽淮北235000 [2]安徽理工大学力学系,安徽淮南232001 [3]中国矿业大学力建学院,北京100083

出　　处：《煤》2010年第4期1-4,共4页Coal

基　　金："十一五"国家科技支撑计划(2007BAK24B00)

摘　　要：文章的目的在于揭示立井井壁重复破裂现象与地下水位之间的关系,进而揭示了立井井壁重复破裂的内外机理。列举了20世纪80年代以后我国某些重复破裂井筒的破坏情况,详细地分析了地下水位下降与井筒周侧土体沉降之间的关系,研究了土体沉降的快速阶段与缓慢阶段,结合土与井筒外壁之间的剪切位移与剪切力之间的关系和物理学中的浮力原理,对井壁重复破裂现象给出了极具说服力的解释。研究结果不仅对立井井壁结构优化设计具有较高的参考价值,对立井井筒的防破措施的研究也具有极为重要的指导意义。The relationship between shaft lining repeated rupture phenomenon and groundwater level is revealed in this dissertation, then internal and external mechanism of shaft lining repeated rupture are revealed. The example on failure situation of some repeated rupture shaft, after the last century eighty＇s in china, is analyzed, and the relationship between lowering of groundwater table and settlement of soil around the shaft is detailed analyzed, and rapid and slowly stages of soil settlement are studied, and the shaft lining repeated rupture phenomenon are very persuasion interpreted based on relationship of shear displacement and shear stress and buoyancy principle of physics between soil and exine. The research results of this dissertation not only have higher reference value to the optimum design of the shaft lining structure, but also have the very important guiding sense to the research on the measures which prevents shaft rupture.

关 键 词：井筒水灾 井壁重复破裂 内外机理 土体沉降 

分 类 号：TD265[矿业工程—矿井建设]