【摘要】 利用温度应力场理论及对井筒中性层的研究,着重论述了温度变化对立井井壁强度的影响,建立了有关应力的计算解析式,并对具体实例进行了分析.更多还原

【Abstract】 On the basis of the theory about the stress field caused by temperature and the research of the shaft neutural surface, the emphatic elucidation is presented about the affection caused by the variance of temperature to the strength of shaftwall. The analytical solution about stress is obtained, and an example is persuasive analyzed.更多还原