摘要
以晋城寺河矿预掘大断面回撤通道为例,应用有限差分数值计算软件模拟了工作面与回撤通道不同距离及工作面采透回撤通道时围岩变形与破坏的特征;介绍了回撤通道锚杆、锚索联合支护形式与参数,加强支护形式;通过矿压监测数据分析,评价了回撤通道支护效果,证明在锚杆、锚索联合支护的基础上,再采用垛式支架加强支护是比较适合回撤通道的支护形式。
Taking pre-excavated large cross sectional equipment remove gateway in Sihe Mine of Jincheng Coal Mining Group as an example, the finite differential fractional value calculation software was applied to simulate the surrounding rock deformation and failure features for the difference distances between the coal mining face and the equipment remove gateway and when the coal mining face reached the equipment remove gateway. The paper introduced the bolt and anchor combined support system and parameters of the equipment remove gateway and the reinforced support system. With the analysis on the monitoring and measured data of the strata pressure, the paper assessed the support results of the equipment remove gateway. The support results showed that the reinforced support with the chock supports was a suitable support system for the equipment remove gateway base on the bolt and anchor combined support system.
出处
《煤炭科学技术》
CAS
北大核心
2005年第11期5-7,共3页
Coal Science and Technology
关键词
回撤通道
锚杆支护
加强支护
应用效果
equipment remove gateway
bolt support
reinforced support
applied results
