断层走向对槽波勘探效果的影响分析  

Analysis of Influence of Fault Strike on In-seam Wave Exploration

作　　者：梁红波 曹静 李德春[3] LIANG Hong-bo;CAO Jing;LI De-chun(Xuzhou Tianhao Exploration Co.,Ltd.,Xuzhou 221000,China;School of Resources and Civil Engineering,Suzhou University,Suzhou 234000,China;School of Resources and Geosciences,China University of Mining and Technology,Xuzhou 221000,China)

机构地区：[1]徐州天浩勘探有限公司,江苏徐州221000 [2]宿州学院资源与土木工程学院,安徽宿州234000 [3]中国矿业大学资源与地球科学学院,江苏徐州221000

出　　处：《煤炭技术》2021年第5期85-88,共4页Coal Technology

基　　金：安徽省自然科学基金(1708085QE125);宿州学院科研平台项目(2019ykf01)。

摘　　要：断层的赋存状态,对槽波探测精度有一定的影响。为研究断层走向对槽波勘探效果的影响,建立了二维煤系地层模型,采用数值模拟方法,设置了4种断层走向模型进行了数值模拟分析,并对山东郓城煤矿隐蔽断层进行槽波勘探应用。通过对采集的单炮记录进行包络叠加法处理,得出:断层走向与巷道的夹角不同时,小角度的夹角(<40°)偏移后其角度变化不大,但夹角接近40°时,偏移后的角度变化很大;在断层走向与巷道夹角较大时,依然可以采用常规的反射槽波处理流程来处理,只需要对叠加同相轴进行偏移即可。研究成果对槽波探测断层的赋存情况提供了理论依据,同时对推断断层走向的解释和分析有一定的意义。The occurrence state of faults has a certain influence on the in-seam wave detection accuracy. In order to study the influence of fault strike on the in-seam wave exploration effect, a twodimensional coal measure strata model was established, and four kinds of fault strike models were set up for numerical simulation analysis by means of numerical simulation method, and the in-seam wave exploration of hidden faults in Yuncheng coal mine, Shandong province was also carried out. Through envelope superposition processing of the collected single shot records, it can be concluded that when the included angle between the fault strike and the roadway is different, the included angle of the small angle(<40°) will not change much after migration, but when the included angle is close to 40°, the migrated angle will change greatly after migration. When the angle between fault strike and roadway is relatively large, the conventional process of reflection in-seam wave processing can still be adopted,and only the offset of superposed in-phase axis is needed. This study provides a theoretical basis for the occurrence of in-seam wave detection faults and has certain significance for the interpretation and analysis of fault strike.

关 键 词：槽波 断层 走向 

分 类 号：P631[天文地球—地质矿产勘探]