CAJ | 학술논문

陷落柱是影响煤矿区煤炭与煤层气开发的主要制约素之一.研究煤矿区陷落柱成及分布特征,有助降低煤炭开采与煤层气开发的风险.通过对陷落柱控制素和发育特征的分析,结合王坡煤矿已发现陷落柱的分布情况,探讨了陷落柱对王坡煤矿煤层气分布及其开发的影响机制.分析认为:陷落柱周围3号煤的气含量有所降低;在煤层气开发过程中,陷落柱可能会贯通奥陶系灰岩层与煤系地层,从而对煤层气的钻井、压裂以及排采工程产生不利影响.
함락주시영향매광구매탄여매층기개발적주요제약소지일.연구매광구함락주성급분포특정,유조강저매탄개채여매층기개발적풍험.통과대함락주공제소화발육특정적분석,결합왕파매광이발현함락주적분포정황,탐토료함락주대왕파매광매층기분포급기개발적영향궤제.분석인위:함락주주위3호매적기함량유소강저;재매층기개발과정중,함락주가능회관통오도계회암층여매계지층,종이대매층기적찬정、압렬이급배채공정산생불리영향.
Collapsed column is one of the main factors influencing coal mining and CBM development. Study on the origin and characteristics of the collapsed column in coal seam helps to reduce the investment risk in coal min-ing and CBM development. On the basis of the analysis of the control factors and development features of the collapsed column, combined with the distribution of the collapsed column in Wangpo coal mine, the effect mechanism on CBM distribution and development is studied. The gas content of seam No.3 is low around the collapsed column, and because the collapsed column may connect the Ordovician strata and coal seam, the collapsed column has an adverse effect on the drilling, the fracturing and the drainage engineering in CBM development.