传递岩梁初次断裂工作面涌水量预测模型研究及应用  

Prediction model of working face water inflow when transfer rock beam initially fractures

作　　者：施龙青 史雅迪 李越 吕伟魁 冯贺龙 SHI Long-qing;SHI Ya-di;LI Yue;LV Wei-kui;FENG He-long(School of Earth Sciences and Engineering,Shandong University of Science and Technology,Qingdao 266590,China;Shandong Xinjulong Energy Co.,Ltd.,Heze 274918,China)

机构地区：[1]山东科技大学地球科学与工程学院,山东青岛266590 [2]山东新巨龙能源有限责任公司,山东菏泽274918

出　　处：《煤炭工程》2021年第4期110-114,共5页Coal Engineering

基　　金：国家自然科学基金(42002282,51804184,41807283);山东省自然科学基金重点项目(ZR2020KE023)。

摘　　要：针对采用工作面开采面积类比法预测顶板最大涌水量误差大的难题,基于流体力学理论,建立了工作面顶板涌水量计算的理想化管道涌水模型。依据矿山压力控制理论,推导出传递岩梁初次断裂时顶板涌水量预测的非线性公式,揭示了顶板涌水量和工作面斜长及传递岩梁初次断裂步距之间的正相关性。现场应用表明,利用已开采和正在开采工作面传递岩梁初次断裂时涌水量,以及已采工作面最大涌水量,预计正在开采工作面最大涌水量所得的结果,相对采用工作面开采面积类比法所得的结果更加符合实际。Aiming at the large error in prediction of maximum water inflow from roof using the area analogy method of working face,based on the theory of fluid mechanics,an ideal pipe model of water inflow is established. Based on the theory of practical ground pressure control,the non-linear formula is deduced to predict the roof water inflow when the transfer rock beam initially fractures,and it’s revealed the roof water inflow is positively correlated with the working face inclination width and the first fracture interval of the transfer rock beam. Field application proves that the predicted maximum water inflow in the mining face based on the water inflow when the transfer rock beam initially fractures both in mined working face and mining working face,is more accurate than that predicted by area analogy.

关 键 词：传递岩梁 初次断裂步距 涌水量预测 矿山压力 

分 类 号：TD745[矿业工程—矿井通风与安全]