摘要
针对利用地球物理方法对急倾斜煤层形成的复杂多层采空区探测存在较大的局限性,探测精度和可靠性难以保证问题,采用高密度电阻率法、微动勘探、瞬变电磁、重力等多种物探方法进行试验,利用高密度电阻率法、微动勘探方法相互组合,对急倾斜煤层形成的复杂多层采空区探测效果较好;以高密度电阻率法反演成果初步圈定采空区的平面分布范围,随后在圈定异常区范围内开展微动勘探,进一步确定采空区沿倾向方向的深部延伸情况。两种方法的相互印证及解释推断,为钻探验证地下采空区的分布范围、“三带情况(弯曲带、裂隙带、垮落带)”及积水情况提供理论依据。
In view of the existing problem of relatively large limitations of utilizing geophysical method to detect complex multi-layer goaf formed by steeply inclined coal seams,and difficulty in ensuring detection accuracy and reliability,multiple types of geophysical exploration methods such as high-density resistivity method,micro motion exploration,transient electromagnetic,gravity and others are used for testing.By utilizing the combination of high-density resistivity method and micro motion exploration method,the detection effect of complex multi-layer goaf formed by steeply inclined coal seams is relatively good;The planar distribution range of the goaf using the inversion results of high-density resistivity method is preliminarily delineated,later on,micro motion exploration within the delineated abnormal area is carried out to further determine the deep extension situation of the goaf along the inclination direction.The mutual verification and interpretation inference of the two methods provide theoretical basis for drilling verification of the distribution range,"three zone"situation,and water accumulation situation of underground goaf.
作者
郭一鸣
王军
王进宝
Guo Yiming;Wang Jun;Wang Jinbao(Xinjiang Geological Investigation Institute of China Chemical Geoloy and Mine Bureau,Urumqi 830000,China)
出处
《山东煤炭科技》
2025年第7期124-128,133,共6页
Shandong Coal Science and Technology
关键词
急倾斜煤层
采空区
高密度电阻率法
微动
steeply inclined coal seam
goaf
high-density resistivity method
micro motion
