CAJ | 학술논문

为了对弓长岭露天矿采空区进行精准探测,首先根据高密度电阻率法,利用温纳、偶极、单边三极等装置采集的探测数据划分了各类地质条件下单采空区和双采空区的高、低阻模型,通过对比分析电阻率的差异,实现了对水平方向密集排列和垂向分布采空区的准确探测;然后结合瞬变电磁法,利用重叠回线、中心回线、分离回线、框一回线等装置,建立了同一地质体的地质及地球物理识别模型,通过观测线圈瞬变磁场结构、频率随时间和空间的变化信息,对该采空区的位置和规模进行了精准探测;最后,为了准确测定采空区的位置、规模、顶板厚度等信息,对高密度电阻率法、瞬变电磁法的探测数据进行处理,并结合现场地质实际情况进行综合解译,形成了采空区分布断面图和平面图. 探测结果表明:弓长岭露天矿存在3个浅部采空区和2个深部采空区,进一步说明,将高密度电阻率法与瞬变电磁法有机结合,实现了探测技术的优势集成,有助于实现对采空区进行快速、准确探测.
위료대궁장령로천광채공구진행정준탐측,수선근거고밀도전조솔법,이용온납、우겁、단변삼겁등장치채집적탐측수거화분료각류지질조건하단채공구화쌍채공구적고、저조모형,통과대비분석전조솔적차이,실현료대수평방향밀집배렬화수향분포채공구적준학탐측;연후결합순변전자법,이용중첩회선、중심회선、분리회선、광일회선등장치,건립료동일지질체적지질급지구물리식별모형,통과관측선권순변자장결구、빈솔수시간화공간적변화신식,대해채공구적위치화규모진행료정준탐측;최후,위료준학측정채공구적위치、규모、정판후도등신식,대고밀도전조솔법、순변전자법적탐측수거진행처리,병결합현장지질실제정황진행종합해역,형성료채공구분포단면도화평면도. 탐측결과표명:궁장령로천광존재3개천부채공구화2개심부채공구,진일보설명,장고밀도전조솔법여순변전자법유궤결합,실현료탐측기술적우세집성,유조우실현대채공구진행쾌속、준학탐측.
In order to detect the goaf of Gongchangling open-pit accurately,the comprehensive geophysical prospecting method based on high density resistivity method and transient electromagnetic method is proposed. Firstly,according to the high density resistivity method,the low resistance model and high resistance model of single goaf and double goaf under all kinds of geological conditions based on the detection data obtained by the devices of wenner,dipole array and unilateral tertiary,the goaf of Gongchangling open-pit distributed densely in horizontal and vertical direction is detected by conducting contrast analysis of the resistivity difference;secondly,based on transient electromagnetic method,the geological and geophysical recognition model of the same geological body are established by utilizing the devices of coincident loop,central loop,separate loop and ground loop,and the location and scale of the goaf of Guangchangling open-pit are detected accurately by observing the variation infor-mation of the transient magnetic field structure and frequency along with time and space;finally,in order to detect the informa-tion of location,scale and roof thickness with high precision,the comprehensive detection data of high density resistivity method and transient electromagnetic method are processed and interpreted comprehensively combing with the field actual geological conditions. The cross-section diagram and floor plan of the goaf of Gongchangling open-pit are obtained. The detection results show that 3 shallow goafs and 2 deep goafs are detected in Gongchangling open-pit,so it can be further indicated that the inte-gration of comprehensive and advantages of detecting technologies is realized by the organic combination of high density method and transient electromagnetic method. It is good to conduct the detection of goaf with high precision.