CAJ | 학술논문

底板突水过程实际上是水压驱动下岩层裂纹萌生、扩展、贯通,直到最后断裂导致失稳破裂的过程。本文通过正交试验法设计了9个计算模型,并对UDEC数值模拟结果进行极差分析,从而得出采场底板岩体裂隙发育深度影响因素的敏感性顺序为：隔水层强度〉原岩应力〉原生裂隙度〉采面长度〉承压水压〉采高。该结果对承压水体上采煤的底板裂隙发育能够定性判别,从而实现安全生产。
저판돌수과정실제상시수압구동하암층렬문맹생、확전、관통,직도최후단렬도치실은파렬적과정。본문통과정교시험법설계료9개계산모형,병대UDEC수치모의결과진행겁차분석,종이득출채장저판암체렬극발육심도영향인소적민감성순서위：격수층강도〉원암응력〉원생렬극도〉채면장도〉승압수압〉채고。해결과대승압수체상채매적저판렬극발육능구정성판별,종이실현안전생산。
Floor water invasion process actually is rock crack Initiation and extended and transfixion by water drive,and until Fracture lead to Instability.this paper design 9 calculation models by orthogonal test,and do range analysis about UDEC calculation results,and obtain the sensitivity sequence that is on influencing factors of the fracture development depth in coal bed floor rock is aquifuge strength rock stress preexisting fissures degree mining faces length artesian pressure mining height.The result can qualitative discriminate the fracture development depth in Coal bed floor rock on the Top of water-pressured.