摘要
针对乌海能源路天煤矿四采区南翼火点治理区存在的高温自燃、高陡边坡及复杂空巷群等极端地质条件,研究基于热-力耦合理论,开展了非常温环境下地质灾害治理的施工管理与技术机理研究。通过现场试验、数值模拟与理论分析,形成了“温度分区-热力耦合分析-差异化设计”的爆破设计方法,采用了“注水降温-凝胶隔热-PVC套管隔离”的组合防护措施与数码电子雷管精准起爆技术,揭示了温度场对岩体力学特性及爆破作用机理的影响规律,建立了考虑温度效应的岩体动态本构模型。研究提出了“温度分区-热力耦合分析-差异化设计-协同控制”的系统治理方法,构建了基于数码电子雷管的多危害效应控制体系。现场应用表明:爆破振动速度控制在0.38 cm·s^(-1)以内,飞石最大散落距离<50 m,高温孔降温治理率达100%,实现了“零伤害、零事故、零污染”目标。研究成果为非常温环境矿山地质灾害治理提供了理论依据和技术支撑。
This study addresses the extreme geological conditions,including high-temperature spontaneous combustion,steep,high slopes,and a complex network of abandoned workings in the fire-affected southern wing of Wuhai Energy′s Lutian Coal Mine.Focusing on non-ambient temperature environments,the research examines construction management strategies and technical solutions for geological hazard control using thermo-mechanical coupling theory.Field experiments,numerical modeling,and theoretical studies were combined to develop a“temperature-zoning/thermo-mechanical coupling/differential-design”blasting method.The implemented solution features an integrated protection package of“water injection for cooling+gel insulation+PVC-sleeve isolation”together with digital electronic detonator precision initiation.Key findings include the characterization of the effects of temperature on rock mass mechanics and blasting dynamics,along with the development of a temperature-dependent dynamic constitutive model for rock masses.The proposed systematic approach integrates temperature zoning analysis,coupled thermo-mechanical evaluation,customized design,and coordinated control measures,establishing a multi-hazard mitigation system utilizing digital electronic detonators.Practical applications demonstrated exceptional safety performance with blast vibrations controlled below 0.38 cm·s^(-1),flyrock limited to under 50 m,and complete success in high-temperature hole cooling,achieving the safety objectives of“zero injuries,zero accidents,and zero environmental contamination”.These results offer valuable theoretical foundations and practical methodologies for managing geological risks in mining operations under extreme temperature conditions.
作者
杜忠龙
汪高龙
李树强
DU ZHONG-long;WANG Gao-long;LI SHU-qiang(ZheJiang Jing'an Blasting Engineering Co.,Ltd.,Hangzhou 310000,China)
出处
《爆破》
北大核心
2026年第1期171-177,共7页
Blasting
关键词
非常温环境
地质灾害
热-力耦合
爆破振动控制
安全管理
extreme temperature environments
geological disaster
thermal-mechanical coupling
blasting vibration control
safety management
