摘要
首先分析临涣矿区井筒破裂的原因，进一步分析厚冲积层疏降水引起地面沉降情况下井筒附加纵向载荷的产生及其计算方法．在上述分析基础上，根据矿区现有井筒技术参数和实际状态，按照摩擦阻力为直线分布与三角形分布两种形式，应用第四强度理论推算摩擦阻力极限值大小，此值可作为本矿区以及地质条件类似矿区的现有井筒井壁强度验算与新井井壁设计的重要参考．
The cause of shaft rupture of Linhuan coal mining areas in Huaibei is analysed, and additional longrtudinal load induced by surface subsidence caused by thick alluvium draining and its calculation are discussed. Based on the above analyses and the technical parameters and actual condition of a shaft, as well as the linear and triangular distributions of frictional resistance, the maximum value of frictional resistance could be calculated. The value can be used as an important reference of the strength calculation of shaft wall.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
1996年第3期54-58,共5页
Journal of China University of Mining & Technology
关键词
地面沉降
井筒破裂
摩擦阻力
疏水
冲积层
井筒
surface subsidence, shaft rupture, frictional resistance, maximum value, longitudinal load of shaft
