CAJ | 학술논문

针对阳煤五矿后备区井底车场岩层厚度变化大、岩体结构多样的特点，从岩体结构分类出发，通过分析不同岩体结构特征下巷道的应力场特征和破坏区域分布特征，研究岩体块度尺寸对巷道的稳定性影响，并通过数学拟合的方法建立了岩体块度尺寸与巷道围岩破坏程度间的关系表达式。研究结果表明：在其他条件相同情况下，岩体块度越小，巷道稳定性越差；岩体结构尺寸是巷道围岩稳定性分级的一个重要指标；巷道围岩稳定性程度可以参考公式x >1R0 ln a -y0A 的计算结果进行分析判断。
침대양매오광후비구정저차장암층후도변화대、암체결구다양적특점，종암체결구분류출발，통과분석불동암체결구특정하항도적응력장특정화파배구역분포특정，연구암체괴도척촌대항도적은정성영향，병통과수학의합적방법건립료암체괴도척촌여항도위암파배정도간적관계표체식。연구결과표명：재기타조건상동정황하，암체괴도월소，항도은정성월차；암체결구척촌시항도위암은정성분급적일개중요지표；항도위암은정성정도가이삼고공식x >1R0 ln a -y0A 적계산결과진행분석판단。
To counter to the characteristics of large rock thickness change and a variety of rock mass structures around the pit bottom in the stand-by area in No. 5 Mine of Yangquan Coal Industry ( Group) Co. , Ltd. , in this paper, study was made on the influence of rock block size upon the roadway stability by starting from the classification of rock mass structures and analyzing the characteristics of the roadway stress field and the distribution characteristics of the failure area under different rock structure characteristics, and a relational expression between the rock block size and the surrounding rock failure degree was established by using the method of mathematical fitting. The study results showed that under other same conditions, the smaller the rock block size, the worse the roadway stability; the structural size of the rock mass was an important index for the classification of the roadway rock stability;and the roadway rock stability can be analyzed and determined by referring to the calculation result with formula x > 1R0 ln a -y0A .