CAJ | 학술논문

合理的支护荷载确定方法是膏溶角砾岩深埋隧道设计和施工过程中的关键科学问题.以石太客运专线太行山隧道累计穿越4410 m膏溶角砾岩地层为依托,通过现场支护荷载量测试验,统计得到初支围岩压力和二衬接触压力.采用泰沙基理论、比尔鲍曼理论、谢家烋理论、铁路隧道设计规范和普氏理论共5种方法分别计算围岩压力,并与现场实测值相比较.结果表明:围岩压力以竖向为主,泰沙基理论值与现场实测统计值最为接近;围岩压力在竖向、水平分布模式不同于传统计算方法,推荐竖向压力采用双峰型或均匀分布,水平压力采用折线型分布;初支和二次衬砌共同承担荷载,二衬分担比例为50.1%.研究成果可为高速铁路膏溶角砾岩以及类似地质条件深埋隧道修建提供参考.
합리적지호하재학정방법시고용각력암심매수도설계화시공과정중적관건과학문제.이석태객운전선태행산수도루계천월4410 m고용각력암지층위의탁,통과현장지호하재량측시험,통계득도초지위암압력화이츤접촉압력.채용태사기이론、비이포만이론、사가휴이론、철로수도설계규범화보씨이론공5충방법분별계산위암압력,병여현장실측치상비교.결과표명:위암압력이수향위주,태사기이론치여현장실측통계치최위접근;위암압력재수향、수평분포모식불동우전통계산방법,추천수향압력채용쌍봉형혹균균분포,수평압력채용절선형분포;초지화이차츤체공동승담하재,이츤분담비례위50.1%.연구성과가위고속철로고용각력암이급유사지질조건심매수도수건제공삼고.
Reasonable method for determining supporting load of deep tunnel is a critical scientific problem during design and construction at present. Taihang mountain tunnel goes through gypsum breccia region of about 4 410 meters on Shijiazhang-Taiyuan high-speed passenger railway. In situ experiments on supporting load were carried out to investigate statistical surrounding rock pressure of primary support and contact pressure of lining. According to Terzaghi theory, Bierbaumer theory, Xie Jia-xiu theory, Code of Design on Tunnel of Railway and M. M. Promojiyfakonov theory, surrounding rock pressure is calculated;and comparison between the theoretical values and the monitoring data is made. The results show that surrounding rock pressure is dominated by vertical mainly. Calculation result by Terzaghi theory is mostly close to monitoring value. Obviously, vertical and horizontal distribution patterns are different from traditional calculation methods. Vertical pressure is recommended as double peak type or uniform distribution. Horizontal pattern is recommended as folded line type. Furthermore, primary support and lining bear load compatibly. The ratio of lining is about 50.1%. The results can provide references for construction of deep tunnel on high-speed railway in gypsum breccia stratum and similar geological tunnel.