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This method integrates the advantages of natural and artificial field source electromagnetic exploration, and uses a unified theoretical model and observation equipment. It can collect three types of exploration data: remote reference magnetotelluric, controlled source magnetotelluric and wide-area magnetotelluric data in one arrangement, which will greatly improve field work efficiency and exploration accuracy. The anti-interference algorithm designed for the strong interference area was used for fine denoising, and finally the nonlinear conjugate gradient method (NLCG) and the lateral constrained quasi-two-dimensional (LCI) method were used for inversion. The inversion results were consistent with the geological data. At the same time, combined with the existing geological data, it is inferred that the shallow strata of the Mengjiaya tunnel are layered, low-resistivity Permian Qixia Formation limestone intercalated with coal strata. The deep strata are limestone, shale and quartz sandstone. There is a fault in the middle of the survey section (surface mileage CK172+875 section), and the surrounding rock mass is relatively broken. The exploration results are of great significance in guiding the next step of safe construction of the tunnel., correspAuthors=null, authorNote=20250215.pdf, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=null), CN=ArticleExt(id=1256260904526668530, articleId=1256260903905911534, tenantId=1146029695717560320, journalId=1256213323050663944, language=CN, title=时空阵列混场源电磁法在深埋隧道勘察的应用, columnId=1256260904342119152, journalTitle=地质与勘探, columnName=地球物理, runingTitle=null, highlight=null, articleAbstract=利用时空阵列混场源电磁法，对宜涪铁路孟家垭深埋隧道进行地质勘察。该方法整合 了天然场及人工场源电磁勘探的优点，使用统一的理论模型和观测设备，一次布置可以采集远参考大 地电磁、可控源大地电磁和广域大地电磁法三类勘探数据，极大地提高了野外工作效率及勘探精度。 使用针对强干扰区所设计的抗干扰算法进行精细去噪工作，最终采用非线性共轭梯度法 （NLCG） 和 横向约束拟二维 （LCI） 方法进行反演，得到了与地质资料吻合的反演成果。同时结合既有地质资料， 推断孟家垭隧道的浅部地层为层状、低电阻率的二叠系栖霞组灰岩夹煤质地层；深部地层为灰岩、页 岩和石英砂岩；在测段中部 （地表里程CK172+875段） 存在1处断层，周围岩体较破碎。该勘探成果 对促进隧道下一步安全施工具有重要意义。, correspAuthors=null, authorNote=杨 磊（1994年-），男，工程师，2020年毕业于中南大学，地质资源与地质工程专业，硕士，主要从事铁路地质勘察设计研究。 E-mail：1159745498@qq.com。, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=tNu5Gv2Dw55OZ11bMLVROg==, pdfFileSize=6503911, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=1 中铁第四勘察设计院集团有限公司，湖北武汉 430063, fund=20250215.pdf, authors=杨 磊¹, authorsList=杨磊), CHT=ArticleExt(id=1273643316185949115, articleId=1256260903905911534, tenantId=1146029695717560320, 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