三维成像技术在采煤工作面探测中的应用

Application of 3D Imaging in Detection of Mining Face

瞬变电磁勘探在井下超前探测中得到了广泛应用,但在回采工作面探测中应用较少,且对资料结果的解释还处于常规二维成像阶段,无法对探测异常体的空间位置分布进行精细化定位,不利于矿井对异常区进行验证。介绍了工作面三维成像技术的基本流程,在赵庄二号井1309回采工作面得以应用,对比常规二维解释图件表明:三维成像技术有助于提高回采工作面瞬变电磁资料解释的精度。

Transient electromagnetic method （TEM） has been widely used in early exploration in mines, but relatively less in caving face detection. Besides, the interpretation of data is still in the stage of conventional 2D imaging, which could not achieve the fine positioning of the spatial distribution of abnormal bodies and could not verify abnormal areas. The paper introduces the basic flow of 3D imaging technique and its application in No. 1309 working face in No. 2 well in Zhaozhuang Mine. Compared with 2D imaging, 3D imaging could improve the interpretation ac- curacy of TEM data in caving face.