CAJ | 학술논문

为有效控制深部厚顶煤巷道围岩变形，设计了纵向让压锚梁支护系统（锚梁在顶板中部纵向布置，并配备锚索让压环），通过现场试验与常规横向锚梁支护方案进行对比研究。监测结果分析表明：纵梁方案有效改善了巷道围岩控制效果，纵梁方案比横梁方案顶板沉降量和造价分别降低31.4%和16.8%；在回采之前横梁方案锚索受力逼近破断荷载（442kN），而由于让压作用，纵梁支护方案回采前锚索受力稳定在294kN，为后期工作面回采提供了强度储备，让压效果明显。最后，从厚顶煤巷道支护关键部位、支护体系整体性和高效让压三个方面对纵向让压锚梁的作用机制进行了分析。
위유효공제심부후정매항도위암변형，설계료종향양압묘량지호계통（묘량재정판중부종향포치，병배비묘색양압배），통과현장시험여상규횡향묘량지호방안진행대비연구。감측결과분석표명：종량방안유효개선료항도위암공제효과，종량방안비횡량방안정판침강량화조개분별강저31.4%화16.8%；재회채지전횡량방안묘색수력핍근파단하재（442kN），이유우양압작용，종량지호방안회채전묘색수력은정재294kN，위후기공작면회채제공료강도저비，양압효과명현。최후，종후정매항도지호관건부위、지호체계정체성화고효양압삼개방면대종향양압묘량적작용궤제진행료분석。
In order to control surrounding rock deformation effectively, longitudinal pressure relief anchor beam support system is designed, of which the anchor beams with pressure relief tubes are longitudinal in the roof center. The comparative study to normal lateral anchor beam was carried out by field test, and the monitoring results show:the surrounding rock controlling effect of longitudinal program is improved signifi-cantly, the roof subsidence and cost of the former program is lower by 30%and16.8%to the latter one respectively. Anchor cable force of lat-eral program is 442kN before stoping, almost approached the broken load. While because of the pressure relief effect, the anchor cable force of longitudinal program is steady at 294kN, provide load reserves for support system for stoping, the pressure relief effect is obvious. At the end, mechanism of the new program is analyzed from 3 aspects:key position of surrounding rock controlling, support system integrity and pressure relief action.