CAJ | 학술논문

　　为分析锚索梁不同布置方式作用机制，以低围压下围岩峰后强度研究成果为基础和支撑，建立了支护系统对顶板围岩作用的三维力学模型，通过理论分析和推导得到了锚索梁(及其各种不同布置方式)、锚杆、锚索单独或联合作用下的顶板围岩围压计算公式。利用该公式，以赵楼煤矿千米深井巷道支护为工程背景，对让压型锚索箱梁4种不同布置方案进行算例分析，对比围压值及其分布范围可知：纵横组合方案在顶板围岩中形成的围压状态最佳，其次为纵向单梁方案，纵向双梁方案及横梁方案分列其后。该不同布置方案围压状态优劣顺序与现场试验巷道支护效果的优劣顺序一致。锚索梁支护系统不同布置方式作用机制在于，不同锚索梁布置方式在顶板围岩中形成的围压状态有明显差异，且该围压状态是决定支护方案效果的一个重要因素，两者正相关。
　　위분석묘색량불동포치방식작용궤제，이저위압하위암봉후강도연구성과위기출화지탱，건립료지호계통대정판위암작용적삼유역학모형，통과이론분석화추도득도료묘색량(급기각충불동포치방식)、묘간、묘색단독혹연합작용하적정판위암위압계산공식。이용해공식，이조루매광천미심정항도지호위공정배경，대양압형묘색상량4충불동포치방안진행산례분석，대비위압치급기분포범위가지：종횡조합방안재정판위암중형성적위압상태최가，기차위종향단량방안，종향쌍량방안급횡량방안분렬기후。해불동포치방안위압상태우렬순서여현장시험항도지호효과적우렬순서일치。묘색량지호계통불동포치방식작용궤제재우，불동묘색량포치방식재정판위암중형성적위압상태유명현차이，차해위압상태시결정지호방안효과적일개중요인소，량자정상관。
To analyze the mechanism of different anchor beam arrangement, the 3D mechanical model of support system acting on roof was established, based on the research of strength in the post-peak re-gion of surrounding rock under low confining pressure. And the confining pressure computing formulas of the roof under the independent action or combined action of bolts, anchors and anchor beam with different arrangement modes, were derived. Calculations of four layout plans of the yielding anchor rope box girder in the 1 000 m deep well of Zhaolou coal mine were analyzed. It is found that after the comparison of confining pressure values and distribution range, among the four programs, the confining pressure state formed in roof surrounding rock with a longitudinal-lateral program was the best, the lon-gitudinal single anchor beam program following, and the last two were longitudinal double anchor beam program and cross anchor beam program. The preferential order of the layout plans corresponds to that of the support effect of different support programs in field test. The mechanism of different anchor beam arrangement modes is that the difference of confining pressure states in roof made by different programs was significant, and the confining pressure state, which had a positive correlation with support effect, was an important influencing factor for support effect of program.