通过理论分析和现场实测，对房柱式采煤的矿压显现规律及其特点进行了探讨。研究表明，房柱式开采时直接顶呈悬顶式周期性垮落；老顶初次垮落步距较常规开采大，且失稳突然；矿压显现强烈，且受煤柱回收顺序的影响。根据现场实际，实施了以顶板垮落步距分析和顶板动态实测相结合的顶板稳定性监测，取得了较好的效果。

By combining the practice s of deep mine mining in Changguang Mine field and using the Universal Distinct Element Code 3.0 3.0) numerical computing method, the distribution characteristics of deformation field and stres sfield as well as the surrounding rock deformation regularity of soft rock roadway are analyzed under extremely complicated geological conditions, a technical principle of bolting to control the surrounding rock of roadway is put forward. And also using a dynamic control for surrounding rocks de signing method, the supporting parameters and implement plan are rationally determined. The experimental tests have obtained a good controlling re sult of surrounding rock.