煤田地质与勘探
煤田地質與勘探
매전지질여감탐
COAL GEOLOGY & EXPLORATION
2013年
2期
16-20
,共5页
李友余%王道永%吴德超%周琳雄
李友餘%王道永%吳德超%週琳雄
리우여%왕도영%오덕초%주림웅
地气测量%隐伏断裂%二郎山隧道
地氣測量%隱伏斷裂%二郎山隧道
지기측량%은복단렬%이랑산수도
geogas prospecting technique%concealed fault%Erlangshan tunnel
采用地气测量方法,探测二郎山隧道隧址区内的隐伏断裂.通过处理和对比分析该地区内5条典型剖面的测量数据,有效判定断裂是否存在及其在地表的出露位置、规模等部分几何特征,并分析了隐伏断层地气元素的异常特征.结果显示:二郎山隧道隧址区推测断层的测线上存在地气异常,且其显示出良好的异常与构造的对应性;与成岩关系较密切的 La、Ce、Nd、Sm、Y、Cd、Cu、Zn、Sr、Pb 等元素灵敏度高、峰值明显,均能较好地反应隐伏断裂的存在;地气异常的高低与断层切割深浅和断层活动性存在一定的联系.
採用地氣測量方法,探測二郎山隧道隧阯區內的隱伏斷裂.通過處理和對比分析該地區內5條典型剖麵的測量數據,有效判定斷裂是否存在及其在地錶的齣露位置、規模等部分幾何特徵,併分析瞭隱伏斷層地氣元素的異常特徵.結果顯示:二郎山隧道隧阯區推測斷層的測線上存在地氣異常,且其顯示齣良好的異常與構造的對應性;與成巖關繫較密切的 La、Ce、Nd、Sm、Y、Cd、Cu、Zn、Sr、Pb 等元素靈敏度高、峰值明顯,均能較好地反應隱伏斷裂的存在;地氣異常的高低與斷層切割深淺和斷層活動性存在一定的聯繫.
채용지기측량방법,탐측이랑산수도수지구내적은복단렬.통과처리화대비분석해지구내5조전형부면적측량수거,유효판정단렬시부존재급기재지표적출로위치、규모등부분궤하특정,병분석료은복단층지기원소적이상특정.결과현시:이랑산수도수지구추측단층적측선상존재지기이상,차기현시출량호적이상여구조적대응성;여성암관계교밀절적 La、Ce、Nd、Sm、Y、Cd、Cu、Zn、Sr、Pb 등원소령민도고、봉치명현,균능교호지반응은복단렬적존재;지기이상적고저여단층절할심천화단층활동성존재일정적련계.
The method of geogas measurement was used to detect concealed fault at the site of Erlangshan tunnel. Through processing and comparative analysis of data of five typical sections, the paper determined effectively the existence, the position of outcrops, the dimension and geometrical features of fault, and analyzed the abnormal characteristics of geogas elements of concealed fault. The results show that there exists geogas anomaly along the survey line above the inferred fault at the site of Erlangshan tunnel,and the anomaly has good correspondency to structure. Elements closely related to diagenesis such as La, Ce, Nd, Sm, y, Cd, Cu, Sr, Pb have high sensibility and evident peak, can well reflect the existence of concealed fault. There exists certain relation between the amplitude of geogas anomaly, the cutting depth of fault and the activity of fault.