传统锚网支护用的金属网容易在大地压及大变形的作用下被破坏,继而导致支护失效。因此,在此次研究中,采用新型材料的锚网支护,即Tecco网+锚杆对巷道进行支护。通过对巷道围岩变形监控量测数据的分析,支护后及时对围岩进行监测,得到拱顶下沉、周边位移的变形曲线具有明显的阶段特征;同时对变形曲线进行非线性回归分析,得到围岩变形“增长模型”的非线性回归方程,对预测围岩变形规律和最终变形提供基础和依据。
mass roadways.Therefore a new material is used in this research ,namely bolt and Tecco net support .The analysis on The supporting metal net of traditional bolt and net is easily destroyed in high-stress ruptured rock-the monitoring data of the deformation of the surrounding rocks indicates that the deformation curves of the crown set -tlement and perimeter displacement have obvious stage characteristics .At the same time,the nonlinear regression anal-ysis on the deformation curves of surrounding rocks obtains the nonlinear regression equation of “growth models” of the deformation of the surrounding rocks.This nonlinear regression equation provides the basis to forecast the deforma-tion rules and final deformation of the surrounding rocks .
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