1、2016 年 11 月上第 45 卷第 21 期施工技术CONSTUCTION TECHNOLOGY111DOI:10.7672/sgjs2016210111盾构施工煤矿长距离斜井特殊不良地质段处置技术与应用*沙明元(中国铁建股份有限公司,北京100855)摘要盾构法应用于长距离煤矿斜井建设是一个开创性的领域,具有安全、优质、快速、环保、综合费用低等突出优势,代表着特大型现代化矿井建设技术的发展方向。针对煤矿斜井盾构法建设过程中面临的“深埋超长、连续下坡、富水高压、地层多变”等工程特点及难点,开展盾构施工软岩变形地段综合处置技术、斜井富水地段防水和排水处置技术、高水压地段泄水降压技术、有害气体
2、处置技术、断层破碎带施工技术研究,并在神东补连塔煤矿进行关键技术的应用,建成了我国首座采用盾构施工的长距离煤矿斜井。关键词隧道工程;煤矿;盾构;斜井;施工;应用 中图分类号U455 文献标识码 文章编号1002-8498(2016)21-0111-05esearch and Application of the Disposal Technology for ShieldConstruction in Special and Poor Geological Conditions ofLong Inclined Shaft in CollierySha Mingyuan(China ailway
3、 Construction Co,Ltd,Beijing100855,China)Abstract:Shield method is a groundbreaking area for the construction of super-long inclined shafts incollieryIt has the advantages of safety,high quality,rapidity,environmental protection andcomprehensive low cost,and represents the development direction of m
4、odern large-scale mineconstruction technology Aiming at the characteristics and difficulties in the shield construction process incolliery inclined shaft,which are of deep buried and super-long,continuous downhill,rich water andhigh pressure,and changeable stratum,the comprehensive disposal technolo
5、gy is carried out,includingdisposal technology of soft rock deformation,waterproof and drainage in water-rich regions,waterpressure relief technology in high-pressure zones,harmful gas disposal technology,as well as faultfracture zone disposal technology These key technologies are used in Shendong-B
6、ulianta colliery to buildChina s first shield constructed long colliery inclined shaftKey words:tunnels;colliery;shielding;inclined shaft;construction;application*“十二五”国家科技支撑计划课题(2013BAB10B05)作者简介 沙明元,教授级高级工程师,E-mail:shamingyuan163 com收稿日期2016-09-23盾构施工煤矿长距离斜井可能遇到的特殊不良地质条件主要包括软弱围岩变形、高压、富水、突涌水、有害气体及断层破碎带等1-4。盾构施工是一种机械化程度高、能进不能退的全断面隧道施工技术,大量工程实践表明,不良地质条件对盾构法隧道施工的影响要比钻爆法隧道敏感的多、大得多,不良地质不仅会严重影响工程进度,增加工程造价,甚至有可能使盾构设备被埋、被淹、被卡,甚至造成人员伤亡。目前,国内尚无采用盾构法施工煤矿斜井的工程实例,国外也仅有少量试验性工程,盾构施工煤矿长距离斜井特殊不良地质段处置技术研究积累很少。国内