煤矿井巷间地质构造及其异常多波联合探测技术与应用
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摘要
影响煤矿层安全高效开采的最主要的地质因素是断层构造及其异常,特别是落差在3~5m的中小断层构造对生产影响最大.为了保证开采工作的顺利进行,通常需在工作面回采前对面内地质条件进行探测与评价.利用地震波CT多波联合探测反演与解释,可精确确定工作面内的地质构造及异常范围.其弯曲射线追踪SIRT法反演可获得收敛性好的探测区域波速结果,以纵波波速结果为主,高速区代表断层构造迹线,低速区代表煤层增厚,同时结合其它参量成图,可有效识别各种地质构造及其特征.3241工作面的探测与回采实例有效地说明了,多波联合探测技术可为面内生产解决大量的实际地质问题.
The fault structure and abnormity are the key geological factors for impacting safety mining,and especially the middle and small fault of 3 to 5 meter fall has most infection for mining production.To keep safety mining,the exploration and valuing for geological condition in workface is often being done before mining.The geological structure and abnormity scope in workface can be confirmed precisely by seismic wave CT multi-wave detecting and explaining.The bending line tracing and SIRT method inversion for seismic wave CT can gain the good constringency velocity results.Looking the velocity result of P-wave as the main,the high velocity reflects the trace of fault,and the low velocity scope reflects coal thicker.At the same time,combining the other's parameters sections,all kinds of geological structure can be distinguished efficiently.The practical example of detecting and mining in 3241 workface expresses that the technique of the seismic wave CT multi-wave detecting can resolve many practical geological problems in workface for mining.
The fault structure and abnormity are the key geological factors for impacting safety mining,and especially the middle and small fault of 3 to 5 meter fall has most infection for mining production.To keep safety mining,the exploration and valuing for geological condition in workface is often being done before mining.The geological structure and abnormity scope in workface can be confirmed precisely by seismic wave CT multi-wave detecting and explaining.The bending line tracing and SIRT method inversion for seismic wave CT can gain the good constringency velocity results.Looking the velocity result of P-wave as the main,the high velocity reflects the trace of fault,and the low velocity scope reflects coal thicker.At the same time,combining the other's parameters sections,all kinds of geological structure can be distinguished efficiently.The practical example of detecting and mining in 3241 workface expresses that the technique of the seismic wave CT multi-wave detecting can resolve many practical geological problems in workface for mining.
引文
[1]王恩元,何学秋,窦林,周世宁,聂百胜,刘贞堂.煤矿采掘过程中煤岩体电磁辐射特征及应用[J].地球物理学报,2005,48(1):216~221.
[2]撒占友,何学秋,王恩元,于广明.煤岩变形破坏电磁辐射记忆效应实验研究[J].地球物理学报,2005,48(2):379~385.
[3]彭苏萍,高云峰,杨瑞召,陈华靖,陈信平.AVO探测煤层瓦斯富集的理论探讨和初步实践--以淮南煤田为例[J].地球物理学报,2005,48(6):1475~1486.
[4]裴正林.井间地震层析成像的现状与进展[J].地球物理学进展,2001,16(3):91~97.
[5]成谷,马在田,张宝金,等.地震层析成像中存在的主要问题及应对策略[J],地球物理学进展,2003,18(3):512~518.
[6]刘永华,田宗勇,喻振华,等.工程VSP与地震CT联合探测方法及其在岩土工程的应用[J],地球物理学进展,2005,20(1):267~272.
[7]韩德馨.彭苏萍.我国煤矿高产高效矿井地质保障系统研究回顾及发展构想[J].中国煤炭,2002(2):5~9.
[8]张平松,刘盛东,程学丰.矿井地质安全保障体系中的实用探测技术[J].江苏煤炭,2003(2):10~11.
[9]赫尔曼.由投影建图像:CT的理论基础[M].北京:科学出版社,1985.
[10]杨文采,李幼铭.应用地震层析成像[M].北京:地质出版社,1993.
[11]刘盛东,李承华.地震走时层析成像算法与比较[J].中国矿业大学学报,2000,29(2):211~214.
[12]王汪根,刘盛东,张平松.弯曲射线追踪中Dijkstra算法的改进与实现[J].地球物理学进展,2006,21(4):1120~1126.
[13]张平松,刘盛东.断层构造在矿井工作面震波CT反演中的特征显现[J].煤炭学报,2006,31(1):35~40.
[2]撒占友,何学秋,王恩元,于广明.煤岩变形破坏电磁辐射记忆效应实验研究[J].地球物理学报,2005,48(2):379~385.
[3]彭苏萍,高云峰,杨瑞召,陈华靖,陈信平.AVO探测煤层瓦斯富集的理论探讨和初步实践--以淮南煤田为例[J].地球物理学报,2005,48(6):1475~1486.
[4]裴正林.井间地震层析成像的现状与进展[J].地球物理学进展,2001,16(3):91~97.
[5]成谷,马在田,张宝金,等.地震层析成像中存在的主要问题及应对策略[J],地球物理学进展,2003,18(3):512~518.
[6]刘永华,田宗勇,喻振华,等.工程VSP与地震CT联合探测方法及其在岩土工程的应用[J],地球物理学进展,2005,20(1):267~272.
[7]韩德馨.彭苏萍.我国煤矿高产高效矿井地质保障系统研究回顾及发展构想[J].中国煤炭,2002(2):5~9.
[8]张平松,刘盛东,程学丰.矿井地质安全保障体系中的实用探测技术[J].江苏煤炭,2003(2):10~11.
[9]赫尔曼.由投影建图像:CT的理论基础[M].北京:科学出版社,1985.
[10]杨文采,李幼铭.应用地震层析成像[M].北京:地质出版社,1993.
[11]刘盛东,李承华.地震走时层析成像算法与比较[J].中国矿业大学学报,2000,29(2):211~214.
[12]王汪根,刘盛东,张平松.弯曲射线追踪中Dijkstra算法的改进与实现[J].地球物理学进展,2006,21(4):1120~1126.
[13]张平松,刘盛东.断层构造在矿井工作面震波CT反演中的特征显现[J].煤炭学报,2006,31(1):35~40.
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