用改进的演化算法进行地下管线资料解释  

Interpretation of underground pipeline data by improved evolutionary algorithm

作　　者：曹立斌[1] 鲁永康[2] 

机构地区：[1]四川石油管理局地调处成都物探研究中心,四川成都610213 [2]中国地质大学,湖北武汉430074

出　　处：《勘探地球物理进展》2005年第1期70-74,i002,共6页Progress in Exploration Geophysics

摘　　要：在地下管线探测资料的解释中常遇到3种复杂的情况,即管线密集平行或上下重叠的情况、管线敷设在斜坡地形下的情况和用磁偶极子示踪法探测非金属管线但不能保证磁偶极子是否水平或垂直的情况。用常规解释方法处理这些复杂情况得不到满意的结果,甚至会误判。改进的演化算法是一种搜索效率很高的算法,不仅有杂交算子,而且还引入了变异算子,每一代只淘汰最差的个体。将该算法用于直接反演上述3种复杂情况下管线的参数,取得了很好的效果。Three situations are often encountered in detection of underground pipelines. Pipelines are densely overlapped, pipelines are laid in a slope, or we cannot make sure that the magnetic dipole are horizontal when magnetic dipole tracer method are used to detect nonmetal pipelines. In such cases, traditional interpretation methods failed to yield satisfactory results, or even get to wrong conclusions. Improved evolutionary algorithm is a highly efficiency evolutionary algorithm. It has both crossover operator and mutation operator. At each generation iteration it discards the worst offspring. The algorithm was used to directly invert the pipeline parameters for the abovemen-tioned situations.

关 键 词：地下管线 演化算法 资料解释 磁偶极子 复杂情况 探测资料 金属管线 斜坡地形 管线敷设 解释方法 搜索效率 杂交算子 变异算子 直接反演 示踪法 

分 类 号：O441.2[理学—电磁学] TU990.3[理学—物理]