CAJ | 학술논문

针对新掘主运大巷斜交穿越昌平运料巷交叉工程特点，采用ABAQUS数值模拟软件对巷道交岔点处塑性区分布范围进行了数值模拟分析，研究了不同强度折减系数条件下的交岔点围岩塑性区范围。根据交叉点围岩塑性区数值模拟结果，将主运大巷与昌平运料巷分成不同区段，并采用合理的掘进与支护技术，将锚网索喷与型钢支架动态叠加在一起。现场监测结果表明，该联合支护方案有效地控制了交叉点围岩的变形与破坏，保证了围岩与支护结构的长期稳定及安全。
침대신굴주운대항사교천월창평운료항교차공정특점，채용ABAQUS수치모의연건대항도교차점처소성구분포범위진행료수치모의분석，연구료불동강도절감계수조건하적교차점위암소성구범위。근거교차점위암소성구수치모의결과，장주운대항여창평운료항분성불동구단，병채용합리적굴진여지호기술，장묘망색분여형강지가동태첩가재일기。현장감측결과표명，해연합지호방안유효지공제료교차점위암적변형여파배，보증료위암여지호결구적장기은정급안전。
For engineering characteristics of the new main haulage roadway obliquely crossing Chang ping haul roadway ,the numerical simulation software ABAQUS is used to analysis distribution of plastic zone of roadway intersection .Through analysis ,numerical solution of the plastic zone surrounding under the conditions of different strength reduction factor is obtained .According to the plastic zone surrounding the intersection of numerical simulation results ,the main haulage roadway and Chang ping haul roadway divided into different sections ,and using reasonable excavation and supporting technology ,the anchor rope and steel supports dynamically added together . Monitoring results showed that the combined support programs effectively controlled intersections rock deformation and failure ,to ensure that the surrounding rock and supporting structure's long-term stability and security .