煤矿风积砂层长斜井服役状态安全评价研究  

Study on Safety Evaluation of Long Inclined Shaft Service in Coal Mine Aeolian Sand Layer

作　　者：冯旭海 吕文宏[2] 郑天斌 王建平 邵方源 甘彬霖[3] FENG Xuhai;LYU Wenhong;ZHENG Tianbin;WANG Jianping;SHAO Fangyuan;GAN Binlin(Beijing China Coal Mine Engineering Co.,Ltd.,Beijing 100013,China;Shanxi Zhongneng Coalfield Co.,Ltd.,Yulin 719000,China;Research Institute of Mine Construction,China Coal Research Institute,Beijing 100013,China)

机构地区：[1]北京中煤矿山工程有限公司,北京100013 [2]陕西中能煤田有限公司,陕西榆林719000 [3]煤炭科学研究总院建井研究分院,北京100013

出　　处：《建井技术》2020年第1期1-6,12,共7页Mine Construction Technology

摘　　要：井筒作为特殊地下构筑物,其安全状态不仅与自身结构性能有关,也与围岩环境、使用条件相关;提出以系统的观点,开展既有井筒安全状态研究评价。结合袁大滩煤矿副斜井风积砂层冻结段井筒案例,沿井筒建设、运营时间轴,从围岩环境、结构性能、运行状况3个维度,对斜井井筒安全状态进行研究分析;对地质与水文地质条件、建设运营状况、现有井壁结构承载能力、混凝土质量检查、位移变形监测数据分析、防水性能、工程类比等多个因素,逐一进行评价和综合论证,得出科学结论,对既有斜井井筒安全状态评价问题做了深入探讨。As a special underground structure,the safety of the shaft is not only related to its own structural performance,but also to the surrounding rock environment and service conditions.A systematic perspective was proposed to conduct research and evaluation of the existing shaft safety state.The safety state of the inclined shaft was analyzed from three dimensions of surrounding rock environment,structural performance,and operating conditions along the time axis of shaft construction and operation,combined with the case of shaft in the frozen section of the aeolian sand layer of anxiliary inclined shaft of yuandatan coal mine.The geological and hydrogeological conditions,construction and operation conditions,bearing capacity of existing shaft structure,concrete quality inspection,displacement and deformation monitoring data analysis,waterproof performance,engineering analogy were evaluated and comprehensively demonstrated one by one and scientific conclusions were drawn.The issue of shaft safty state evaluation of existing inclined shaft was discussed in depth.

关 键 词：风积砂 斜井冻结 地下工程结构 安全评价 系统论 

分 类 号：TD265.3[矿业工程—矿井建设]