二维地震勘探在禹州张得煤田中的应用研究  

Application research of two-dimensional seismic exploration in Zhangde Coalfield,Yuzhou City

作　　者：刘普 解攀龙 Liu Pu;Xie Panlong(Henan Zhuoyue Construction Engineering Co.,Ltd.,Zhengzhou 450000,China)

机构地区：[1]河南卓越建设工程有限公司,河南郑州450000

出　　处：《能源与环保》2024年第9期110-114,119,共6页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：国家自然科学基金项目(42072188)。

摘　　要：禹州市张得煤田位于华北陆块嵩箕构造区东部,周边有平顶山煤田、新密煤田、登封煤田等,具有良好的成矿地质背景。近年来随着煤田开采深度的不断增大,在煤田的深部发现一系列构造断裂,这些断裂构造多为张得断层(F_(1))、虎头断层(F_(3))、南关断层(F_(5))等主断裂构造的次级断裂构造或不同断裂构造多期次叠加的结果,常表现出较为复杂的构造形态,目前对于这些断裂构造的形态、产状、分布规律及控煤特征等不明确,制约了煤田的生产与开采。基于此,此次通过对张得煤田开展二维地震勘探的理论研究,研究结果显示:(1)煤层顶底板方面,地震波剖面反映了新生界底界面的深度及起伏形态,新生界底界高程为+50~-400 m,总体表现为西浅东深的分布特征;(2)煤层赋存特征方面,较好地反映了二1煤层底板埋深及起伏形态;(3)构造特征方面,地震波与断裂构造表现出较好的相关性,其中F_(1)、F_(3)、F_(5)等主断裂构造对煤层的空间赋存影响较大,其次级断裂构造虽对煤层展布产生一定影响,但煤层的完整性未被破坏。The Zhangde Coalfield in Yuzhou City was located in the east of Songji tectonic area of the North China landmass,surrounded by Pingdingshan Coalfield,Xinmi Coalfield and Dengfeng Coalfield,which has a good metallogenic geological background.In recent years,with the increasing mining depth of coalfields,a series of structural faults have been found in the deep of coalfields.These fault structures are mostly the result of secondary fault structures of major fault structures such as Zhangde Fault(F_(1)),Hutou Fault(F_(3)),Nanguan Fault(F_(5)),etc.,or the superposition of different fault structures in multiple stages,often showing relatively complex structural forms.At present,the shape,occurrence,distribution law and coal control characteristics of these fault structures are not clear,which restricts the production and exploitation of coalfields.Based on this,the theoretical research of two-dimensional seismic exploration in Zhangde Coalfield was carried out.The results showed that:①the seismic wave profile reflects the depth and relief pattern of the bottom interface of the Cenozoic in terms of the roof and floor of the coal seam,and the elevation of the bottom boundary of the Cenozoic varies from+50 m to-400 m,with the overall distribution characteristics of shallow west and deep east;②in terms of the occurrence characteristics of coal seam,it better reflects the buried depth and relief pattern of the bottom of coal seamⅡ1;③in terms of structural characteristics,seismic waves and fault structure show a good correlation,in which the main fault structures such as F_(1),F_(3)and F_(5)have a greater impact on the spatial occurrence of coal seams,while the secondary fault structures have a certain impact on the distribution of coal seams,but the integrity of coal seams is not destroyed.

关 键 词：二维地震勘探 构造特征 张得煤田 断裂构造 

分 类 号：P631.4[天文地球—地质矿产勘探]