冯营矿软岩巷道持续变形控制研究  

Research on continued deformation control of soft rock roadway in Fengying Mine

作　　者：陆明心[1] 

机构地区：[1]中国矿业大学(北京),北京100083

出　　处：《煤炭科学技术》2005年第5期65-66,55,共3页Coal Science and Technology

摘　　要：基于冯营矿巷道变形的观测数据,研究分析了冯营矿二四轨道下山及一四流水巷支护岩体变形破坏的原因,认为巷道变形是一种持续性的变形,变形速度的基本稳定于某一数值,数值的大小与支护方式有关。根据分析,采用了料石底拱加半圆拱砌碹的方式控制持续变形,实测数据证明,控制方式是有效的。不稳定的巷道顶底板相对位移速度一般大于0.5mm/d,而稳定巷道的顶底板相对位移速度小于0.2mm/d。Base on the measured data of the mine roadway deformation, the paper studied and analyzed the deformation failure cause of the support systems in No. 24 dip entry and No. 14 water drainage gateway of Fengying Mine. The paper hold that the mine roadway deformation was a continued deformation. The deformation rate will basically stabilized at a certain value. The size of the value will be related to the support mode. According to the analysis, a reversed arch made of stone and cement can control the continued deformation. The measured data showed that the control method was effective. The related displacement rate of the unstable roadway floor generally was higher than 0.5 mm/day. The related displacement rate of the stable roadway floor was lower than 0.2 mm/day.

关 键 词：软岩 持续变形 围岩控制 

分 类 号：TD353[矿业工程—矿井建设]