| 横波地震技术在伊敏一露天矿中的应用 |
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| 引用本文： | 孔庆河,张文德,李铭铭,武桂香,张素梅.横波地震技术在伊敏一露天矿中的应用[J].中国煤炭地质,2011(9):52-56. |
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| 作者姓名： | 孔庆河 张文德 李铭铭 武桂香 张素梅 |
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| 作者单位： | 东北煤田地质局物探测量队; |
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| 摘 要： | 以伊敏煤田某露天煤矿横波地震勘探为例,介绍了制做适合野外施工的低噪声、大能量、且易于操作的横波震源的方法,并将各种特性的横波震源在不同介质中进行激发效果试验。根据试验结果确定了震源类型及数据采集参数,其中横波震源为12齿、重150kg、尺寸为110cm×90cm×20cm的爬钉型震板,在加载500kg的重物时耦合效果较好。横波资料的处理基本上与纵波处理的方法相同,由于该区反射波信噪比较高,区内地形平坦,静校正问题较易解决。在资料解释中利用反射波同相轴的形态,在时间剖面上圈定了断层、煤层冲刷带及煤层尖灭点的位置。另外应用速度谱资料求取的平均速度预测了该露天煤矿15、16煤的底板深度。
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| 关 键 词： | 横波地震勘探 震源 观测系统 伊敏煤田 |
Application of Shear Wave Seismic Technology in a Surface Coalmine in Yimin Coalfield |
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| Kong Qinghe,Zhang Wende,Li Mingming,Wu Guixiang , Zhang Sumei.Application of Shear Wave Seismic Technology in a Surface Coalmine in Yimin Coalfield[J].Coal Geology of China,2011(9):52-56. |
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| Authors: | Kong Qinghe Zhang Wende Li Mingming Wu Guixiang Zhang Sumei |
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| Institution: | Kong Qinghe,Zhang Wende,Li Mingming,Wu Guixiang and Zhang Sumei(Geophysical Prospecting and Surveying Team,Northeast China Bureau of Coal Geological Exploration,Shenyang,Liaoning 110101) |
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| Abstract: | Taking the shear wave seismic prospecting in a surface coalmine in the Yimin coalfield as an example,introduced a shear wave source adaptable to low noise,large energy,and easy to operate in field operations,and tested shot effects of various characteristic shear wave sources in different media.Based on tested results have determined source type and data acquisition parameters.In which,the shear wave source is a 12 setoffs,weight 150kg,size 110cm×90cm×20cm nailed vibration plate,it has better coupling effect when 500kg weight is loading.Data processing is basically the same of compressive wave data,since the higher reflection S/N in the area and flat ground,thus easy statics.In data interpretation,reflection phase axis configuration has used to cycle out positions of faults,coal seam scouring belts and pinch out points on time sections.In addition floor depths of Nos.15 and 16 coal seams have been predicted through mean velocity from velocity spectrum. |
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| Keywords: | shear wave seismic prospecting source field setup Yimin coalfield |
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