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To address the challenge of the unclear spatiotemporal coupling mechanism of the wind temperature field in dynamic excavation roadways during the thermal hazard control of deep high-temperature mines, a three-dimensional unsteady heat transfer model of the dynamic excavation process was constructed. A dimensionless time F_ov characterizing the excavation speed and the traditional dimensionless distance X were introduced to establish a spatiotemporal binary relationship Θ(F_ov, X) for the temperature field. The spatiotemporal coupling relationship of the dimensionless temperature in the excavation roadway was obtained through iterative inversion based on the Gauss-Newton method, further revealing the nonlinear mechanism of the effect of inlet air temperature on thermal hazard regulation. The results show that the evolution of the dimensionless temperature over time and space follows an exponential-quadratic time-varying relationship (Mean Relative Error MRE=1.1%). The temperature gradient is positively correlated with distance and negatively correlated with time. The initial cooling effect of low-temperature air supply is significant, but after long-term ventilation, the air flow and surrounding rock gradually approach thermal equilibrium, and the cooling efficiency attenuates by 26.3%. Thermal hazard control projects should integrate surrounding rock thermal management with localized cooling to improve cooling sustainability. A reduction in the inlet air temperature intensifies the nonlinear variation characteristics of the air temperature, increasing the MRE of the dimensionless temperature spatiotemporal coupling model from 1.10% (30 ℃) to 1.81% (20 ℃), while still meeting engineering accuracy requirements. The air temperature response in the area near the heading face is the most sensitive. When the inlet air temperature rises from 20 ℃ to 30 ℃, the total temperature rise near the heading face area is 42.1% higher than that in the roadway exit area. Taking a heading face air temperature threshold of 26 ℃ as the constraint, a dynamically designed inlet air temperature that meets the cooling requirements was derived.

, authors=Xufeng Zhao¹, Jiale Zhou², authorsList=Xufeng Zhao, Jiale Zhou, authorCompany=null, correspAuthors=null, authorNote=null, 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, fund=null), CN=ArticleExt(id=1321893343357944782, articleId=1321893342384866248, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=基于高斯-牛顿法的动态巷道风温场时空耦合特征, columnId=1226462294582936453, journalTitle=矿业研究与开发, columnName=深部、深海矿产资源勘探与开发, runingTitle=null, highlight=null, articleAbstract=

针对深部高温矿井热害治理中动态掘进巷风温场时空耦合机制尚不明确的难题，构建了动态掘进过程三维非稳态传热模型，引入表征掘进速度的无量纲时间F_ov与传统无量纲距离X，建立温度场时空二元关系式Θ（F_ov，X），基于高斯-牛顿法迭代反演得到掘进巷道无量纲温度的时空耦合关系，进一步揭示进风温度对热害调控的非线性作用机制。结果表明：无量纲温度随时间与空间的演化服从指数-二次时变关系（平均相对误差MRE=1.1%），温度梯度与距离呈正相关，与时间呈负相关；低温送风的初始降温效果显著，但长期通风后风流与围岩逐渐趋近热平衡，降温效率衰减26.3%，降温工程中需结合围岩热控制与局部制冷，以提高降温可持续性；进风温度降低会增强风温的非线性变化特征，使无量纲温度时空耦合模型的MRE从1.10%（30 ℃）增至1.81%（20 ℃），但仍满足工程精度要求；近迎头区域风温响应最为敏感，当进风温度从20 ℃升至30 ℃时，近迎头区域总温升幅度较巷道出口区域高42.1%，以迎头风温阈值26 ℃为约束，得出了满足降温要求的动态设计进风温度。

, authors=赵旭峰¹, 周嘉乐², authorsList=赵旭峰, 周嘉乐, authorCompany=null, correspAuthors=null, authorNote=, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=6bKo5EQaMDmDE1pY/Q5V8g==, magXml=V0NzkLSew72F4wfntF+Izw==, pdfUrl=null, pdf=tx3h4pu4RE6szSqun/Rg5w==, pdfFileSize=3009417, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=u9RGW8JKkHxoMJyEwj3a4w==, mapNumber=null, fund=null)}, authors=[Author(id=1321893345346044887, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321893342384866248, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=672721766@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1321893345434125273, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321893342384866248, authorId=1321893345346044887, language=EN, stringName=Xufeng Zhao, firstName=Xufeng, middleName=null, lastName=Zhao, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.Department of Resources and Safety Engineering, Shanxi Engineering Vocational College, Taiyuan, Shanxi 030009, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1321893345526399962, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321893342384866248, authorId=1321893345346044887, language=CN, stringName=赵旭峰, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1．山西工程职业学院 资源与安全工程系，山西 太原　030009, bio={"content":"

赵旭峰（1987—），男，山西太原人，硕士，主要从事矿山热害治理及矿山压力与岩层控制研究。E-mail:672721766@qq.com

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赵旭峰（1987—），男，山西太原人，硕士，主要从事矿山热害治理及矿山压力与岩层控制研究。E-mail:672721766@qq.com

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