基于岩层运动并行计算系统StrataKing的岩层运动模拟  

Numerical simulation of strata movement based on the parallel computing system of strata movement(StrataKing)

作　　者：王学滨 余保健 李小帅 张钦杰 郑一方 WANG Xuebin;YU Baojian;LI Xiaoshuai;ZHANG Qinjie;ZHENG Yifang(Institute of Computational Mechanics,Liaoning Technical University,Fuxin Liaoning 123000,China;College of Mechanics and Engineering,Liaoning Technical University,Fuxin Liaoning 123000,China)

机构地区：[1]辽宁工程技术大学计算力学研究所,辽宁阜新123000 [2]辽宁工程技术大学力学与工程学院,辽宁阜新123000

出　　处：《矿业科学学报》2025年第2期214-225,共12页Journal of Mining Science and Technology

基　　金：国家自然科学基金(52474101)。

摘　　要：目前,我国煤炭行业岩层运动模拟主要靠国外通用商业软件,存在计算效率低、计算规模小、矿业特色不明显等问题。基于自主开发的岩层运动并行计算系统StrataKing,通过GPU并行提升计算效率和计算规模,单元数为国外通用商业软件的10倍。StrataKing的新突破包括垮落岩石的膨胀、煤层和巷道开挖后的逐渐卸荷及支护作用下的随采随充等,分别用于探究110工法、长壁开采和充填开采的岩层运动规律。结果表明,对于110工法,得以保留的左巷的最大下沉量为0.103 m,与现场结果基本相符;对于长壁开采,工作面两侧一定范围内的煤体开裂,应力向远处转移,在此掘巷有利于巷道维护,弯曲下沉带下边界与煤层下表面的距离和相似模拟结果基本相符;对于充填开采,模型上表面最大下沉量比未充填模型减少56.52%,占采高的比例降低55.55%,若干岩层裂而未断。At present,numerical simulation of strata movement in the coal industry in China mainly depends on foreign universal commercial software,possessing some defects,such as low computational efficiency,small computational scale and less apparent mining characteristics.This paper introduces principles and unique features of the self-developed parallel computing system of strata movement(StrataKing).The computing efficiency and scale have been significantly improved through GPU parallel computing.For example,the number of elements can reach 10 times the foreign universal commercial software.New breakthroughs of StrataKing include swelling of elements detached from the roof,progressive unloading for excavation of tunnel and coal,and simultaneous mining and filling under support,and were used to model strata movements of the 110 mining method,longwall mining method and backfill mining method. For the 110 mining method, the roadway is not has basically destroyed, and the maxi-mum displacement of the retained left roof is 0. 103m, consistent with the observation in situ. For the longwall mining method, coal mass in a certain range near two sides of the working face is fractured, and stress is transferred far away from the working face, so roadways can be excavated at cracking loca-tions. For the backfill mining method, the maximum displacement of upper surface and the ratio of the maximum displacement of upper surface to the mining height is reduced by 56. 52% and 55. 55% re-spectively, several cracked stratas remain unbroken, compared with the unbackfilled model.

关 键 词：煤矿 岩层运动 并行计算 云计算 采矿方法 

分 类 号：TD8[矿业工程—矿山开采] X936[环境科学与工程—安全科学]