煤矿安全2026，Vol.57Issue(3)：1-9,9.DOI:10.13347/j.cnki.mkaq.20250762
煤层瓦斯压力远程原位测定系统可靠性建模
Reliability modeling of remote in-situ measurement system for coal seam gas pressure
摘要
Abstract
Aiming at the technical problems existing in coal seam gas pressure measurement via directional long boreholes,a remote in-situ measurement system was developed.To ensure its stability,reliability and measurement accuracy,a full-factor integration method was proposed to guide the improvement and optimization of the system.The engineering feasibility and practical effective-ness of the system were verified through experimental research,and the faults occurring during system operation were identified sim-ultaneously.On this basis,according to the analysis of system operation mechanism and failure paths,a conceptual model of system reliability was constructed.Furthermore,a mathematical model of system reliability was established by integrating the dynamic fault tree method,failure free operating period(FFOP)prediction method and cost-reliability allocation method.The results show that:the remote in-situ measurement system can shorten the pressure measurement cycle,but the influencing factors of system reliability are complex,the primary factor is the reliability of the measurement device,while other factors include drilling rig reliability,measure-ment field variations and technological processes;other influencing factors exert their effects on system reliability through the meas-urement device,thus,ensuring the tightness and pressure stabilization capability of the measurement device constitutes the key tech-nical node for improving system reliability;the conceptual model of system reliability established based on dynamic fault gates clari-fies the structural relationships among components and demonstrates the fault modes of the system;the mathematical reliability mod-el constructed in the form of parameters realizes the quantitative analysis of the dynamic fault tree and mean time between failures(MTBF)prediction method;the reliability allocation based on calculation results balances the reliability of the overall system and its components,providing an optimization scheme for the continuous improvement of the system;taking the remote in-situ coal seam gas pressure measurement system as the research object,the full-factor integration method establishes a reliability research system covering the entire measurement cycle for different levels of the system.关键词
煤层瓦斯压力/远程原位测定/全要素集成/动态故障树/可靠性模型Key words
coal seam gas pressure/remote in-situ measurement/full-factor integration/dynamic fault tree/reliability model分类
矿业与冶金引用本文复制引用
谢宏,王卓..煤层瓦斯压力远程原位测定系统可靠性建模[J].煤矿安全,2026,57(3):1-9,9.基金项目
国家矿山安全监察局重点实验室2024年度开放基金资助项目(NMSA-2024-004) （NMSA-2024-004）
