山东煤炭科技
山東煤炭科技
산동매탄과기
Shandong Coal Science and Technology
2014年
12期
26-27,30
,共3页
大采高%超前支承压力%数值模拟%分布规律
大採高%超前支承壓力%數值模擬%分佈規律
대채고%초전지승압력%수치모의%분포규률
large mining height%abutment pressure%numerical simulation%distribution law
为了掌握晋煤集团赵庄二号井大采高短壁工作面超前支承压力分布规律，以首个大采高工作面1305工作面为工程背景，运用FLAC3D数值模拟和现场实测的研究手段对超前支承压力分布规律进行分析。研究表明：工作面前方塑性区域范围为6.7~12.5m，平均8.9m。工作面超前支承压力影响范围为20~50m。超前支承压力峰值介于24.16~28.48MPa，平均26.44MPa。研究结果为确定合理的护巷煤柱参数及超前支护设计提供参考依据。
為瞭掌握晉煤集糰趙莊二號井大採高短壁工作麵超前支承壓力分佈規律，以首箇大採高工作麵1305工作麵為工程揹景，運用FLAC3D數值模擬和現場實測的研究手段對超前支承壓力分佈規律進行分析。研究錶明：工作麵前方塑性區域範圍為6.7~12.5m，平均8.9m。工作麵超前支承壓力影響範圍為20~50m。超前支承壓力峰值介于24.16~28.48MPa，平均26.44MPa。研究結果為確定閤理的護巷煤柱參數及超前支護設計提供參攷依據。
위료장악진매집단조장이호정대채고단벽공작면초전지승압력분포규률，이수개대채고공작면1305공작면위공정배경，운용FLAC3D수치모의화현장실측적연구수단대초전지승압력분포규률진행분석。연구표명：공작면전방소성구역범위위6.7~12.5m，평균8.9m。공작면초전지승압력영향범위위20~50m。초전지승압력봉치개우24.16~28.48MPa，평균26.44MPa。연구결과위학정합리적호항매주삼수급초전지호설계제공삼고의거。
In order to grasp the Shanxi Coal zhaozhuang II wells with large mining height distribution of the short wall face in abutment pressure to the ifrst 1305 Face Large Working as engineering background, the use of research tools FLAC3D numerical simulation and ifeld measurement of lead abutment pressure distribution analysis. Studies have shown that:in front of the plastic area of work ranging from 6.7~12.5m, an average of 8.9m. Face abutment pressure affect the range of 20~50m. Abutment pressure peak between 24.16~28.48MPa, average 26.44MPa. The results determine a reasonable Pillar advance support design parameters and provide a reference for.
