摘要
通过对表土沉降原因的分析,找出了由于沉降的原因而产生的井壁破裂的危险位置,并利用静力学理论及温度应力场理论推出了危险位置处的应力计算解析式,建立了考核井壁破裂的强度准则,最后通过对鲍店煤矿四井筒井壁破裂原因的具体分析,证明了该理论的正确性及适用性,对工程现场及井壁设计具有较大的指导意义。
In this paper, through the analisis of the reason about surface soil sttelement, the danger position of the shaft wall fracture is looked out. On the basis of the theories about the stress field caused by temperature and the statics, the analitical solution about stress of the danger posi-tion and the strength norm of shaft wall are obtained. In the last, through the analysis about the fracture reason about shaft wall of the four shaft in Baodan mile, the rightness and applicability ofthe theory in this paper is proved. It has more great guidance significance to construction field and engineering design.
基金
淮南工业学院青年基金
关键词
沉降
井壁破裂
温度应力
settlement
shaft wall fracture
the stress caused by temperature
