摘要
深部矿产与地热资源共采战略为实现“矿-热”经济有效开发和实现双赢提供了有效途径,深部高温地层井巷建设技术是“矿-热共采”战略安全高效实施的重要支撑和保障.分析了深部“矿-热共采”战略对井巷建设技术需求的必要性和迫切性,梳理了矿山井巷建设技术现状和存在的不足,阐述了矿山井巷智能化建设方面的研究进展与发展路径;剖析了深部高温地层井巷建设面临的难题与挑战,提出了深部高温地层井巷工程建造技术发展的三大优先发展任务:1)深部高温地层井巷建设地质保障系统;2)深部高温地层井巷建设模式与规划;3)深部高温地层井巷建设成套技术与装备.结合三大优先发展任务,凝练出8项基础理论与关键技术的发展方向:地层原位探识与透明化重构、高温地层井巷建设工艺适宜性、高温地层非爆破破岩、深井连续提升、深部不良地层改性与围岩长期稳定性控制、深井热害治理、井巷装备智能感知、井巷掘进装备智能控制.基于以上内容,初步构建了深部高温地层井巷建设基础理论与技术研究体系,以期为深部资源开采清洁化和地热清洁能源规模化发展提供参考.
The joint exploitation of deep mineral and geothermal resources strategy provides an effective way to realize the economic exploitation of“resources-thermal”and achieve a win-win situation.The technology for deep high-temperature stratum shaft and roadway construction is an important support and guarantee for the safe and efficient implementation of the“ore-thermal comining”strategy.The necessity and urgency of this deep“ore-thermal co-mining”strategy to the technical requirements of shaft and roadway construction are analyzed.Combined with the analysis of the status quo of mine construction technology,it is clear that the non-blasting rock breaking technology represented by mechanical rock breaking is an important direction in the development of deep shaft and roadway construction technology at present.Mechanical rock breaking technology is a technical approach to solve the existing problems in the process of drilling and blasting excavation,such as too many underground workers,complex working procedures,serious occupational injury,and environmental pollution.In the hard rock stratum,partial section roadheader equipment has low boring efficiency,large tool consumption,and high economic cost,whereas full-section boring machines used for shaft or roadway have advantages in detection,rock breaking,slag discharge,surrounding rock supporting,and other aspects.Therefore,the development direction of intelligent shaft and roadway construction is proposed.It analyzes the difficulties and challenges faced by shaft and roadway construction in the deep high-temperature stratum,such as precise formation exploration,formation reinforcement and water plugging,high ground temperature prevention and control,high ground stress prevention and control,deep shaft lifting,and manufacturing of shaft and roadway boring machines.Three priority development tasks are proposed:1)a geological guarantee system for deep hightemperature strata shaft and roadway construction;2)a construction mode and planning of shaft and roadway in deep high-temperature strata;3)a complete set of technology and equipment for deep high-temperature stratum shaft and roadway construction.Eight basic theories and key technologies are summarized based on the three priority development tasks:in situ exploration and transparent reconstruction of stratum,suitability of shaft and roadway construction methods in the high-temperature stratum;non-blasting rock breaking in the high-temperature stratum;continuous lifting of deep shaft;modification of deep bad stratum and long-term stability control of surrounding rock;thermal damage treatment of deep shaft;intelligent perception of shaft and roadway equipment;intelligent control of shaft and roadway boring equipment.Based on the above content,the basic theory and technology research system of shaft and roadway construction in a deep high-temperature stratum is preliminarily constructed to provide a reference for deep resource clean mining and the large-scale geothermal clean energy development.
作者
刘志强
陈湘生
宋朝阳
程守业
LIU Zhi-qiang;CHEN Xiang-sheng;SONG Zhao-yang;CHENG Shou-ye(Beijing China Coal Mine Engineering Co.,Ltd.,Beijing 100013,China;National Engineering Research Center of Deep Shaft Construction,Beijing 100013,China;College of Civil and Transportation Engineering,Shenzhen University,Shenzhen 518061,China)
出处
《工程科学学报》
EI
CSCD
北大核心
2022年第10期1733-1745,共13页
Chinese Journal of Engineering
基金
国家自然科学基金资助项目(52004125)
中国工程院咨询研究资助项目(2019-XZ-16)
天地科技股份有限公司创新创业资金重点资助项目(2021-2-TD-ZD006)。
关键词
深部环境
矿-热开采
地热资源
矿井建设
高温岩层
deep environment
mineral and geothermal comining
geothermal energy
mine construction
high-temperature strata
