高海拔喀斯特地貌复杂地质条件下三维地震勘探技术的应用  

Application of 3D seismic exploration technology under complex geological conditions of high-altitude karst landforms

作　　者：翟勇 ZHAI Yong(Guizhou Yuneng Investment co.,Ltd,Guiyang 550023,China)

机构地区：[1]贵州豫能投资有限公司,贵阳550023

出　　处：《地质装备》2025年第1期19-24,32,共7页Equipment for Geotechnical Engineering

摘　　要：煤矿资源是国家进步、社会经济发展的重要基础能源。通过三维地震技术可以查明煤层断层、褶曲等构造形态和煤层的赋存情况等地下结构,为开采技术条件准备和安全高效生产提供地质依据和保障。贵州黔西矿区海拔较高,喀斯特地貌发育,三维地震施工难度大。本次施工首先选取了3个试验点开展试验,取得了合理施工基本激发因素。野外施工完成了三维线束61束,采集炮数3220炮,覆盖面积2.28 km^(2),最低覆盖次数为32次,最高覆盖次数59次。针对施工过程中的技术难点,采取了针对性的措施,获取了可靠的地质原始资料,查明了勘查区内各煤层底板的起伏形态及构造发育情况,圈定出勘探区内的地质异常区,为后期矿井安全生产提供了地质保障。Coal resources are an important basic energy resource for national progress and socio-economic development.Through three-dimensional seismic technology,the structural forms of coal seam faults,folds and the occurrence of coal seams can be identified,providing geological basis and guarantee for the preparation of mining technology conditions and safe&efficient production.The Qianxi mining area in Guizhou has a high altitude and developed karst landforms,making it difficult to carry out three-dimensional seismic construction.In this construction,three experimental points were selected for testing,and the basic triggering factors for reasonable construction were obtained.61 sets of 3D wiring harnesses were completed during field construction,collecting 3220 shots and a coverage area of 2.28 km^(2).The minimum coverage was 32 times and the maximum coverage was 59 times.Regarding the technical difficulties encountered during the construction process,targeted measures have been taken to obtain reliable geological raw data,inentify the floor undulation and structural development of each coal seam in the exploration area,and delineate the geological anomaly areas within the exploration area,which provide geological guarantees for the mine safety production in the later stage.

关 键 词：三维地震 勘查区 煤层 断层 

分 类 号：P631[天文地球—地质矿产勘探]