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本文提出对预注浆开凿井巷的应力分析、应计及承载环与原岩间的相互作用,作为空间问题,故采用[5][6]的弹性解。用本文方法可计算任意原岩应力状态下承载环内的应力;采用原岩应力理论时,所得公式大为简化,与以往所用拉麦公式形式相似,但两者对承载环的应力分析是不同的。
In this paper, the stress analysis of precast grouting shaft is proposed, and the interaction between bearing ring and original rock should be taken into account. As a space problem, elastic solution of [5] [6] is used. This method can be used to calculate the stress in the bearing ring under the condition of any original rock stress. When the original rock stress theory is adopted, the obtained formula is greatly simplified, which is similar to the conventional formula of Lamai, but the stress analysis of the bearing ring is different of.