On the basis of key rock strata theory, transferring rock beam structure and the law of the overlying strata displacement and the surface subsidence theory, we deduced offset error formula.
以关键层理论、传递岩梁理论以及采场上覆岩层及地表移动规律理论为基础，推导出岩梁抗弯刚度的误差补偿公式。
The general law of surface settlement and horizontal tensile displacement were firstly calculated from different space positions.
首先从不同空间位置上模拟计算地表沉降量和水平拉伸位移的一般规律；
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