高应力条件下软岩巷道支护参数研究

Research on Supporting Parameters of Soft Rock Roadway under High Stress Condition

高应力条件下的软岩巷道支护问题是煤炭开采过程亟待解决的难题,通过对比分析不同巷道断面形状及支护形式下的顶底板及两帮围岩变形量,分析得出不同断面形状的巷道在采用不同支护方式时的变形特征,指出采用马蹄形巷道可较好控制顶底板变形量,采用圆形巷道可较好控制巷道两帮变形.

The problem of soft rock roadway support under high stress condition is an urgent problem in coal mining process.The deformation characteristics of roadway with different section shape and supporting form are analyzed by comparing and analyzing the deformation of roof and floor slab and surrounding rock.The deformation characteristics of roadway with different section shape are analyzed.It is pointed out that the horseshoe roadway can better control the deformation of roof and floor,and the circular roadway can better control the deformation of two sides of roadway.