摘要
根据隧道掘进机(TBM)施工进度将围岩分为施工条件好、施工条件较好、施工条件较差和施工条件差4个等级。利用模糊数学方法,采用岩石单轴抗压强度UCS和岩体完整性指标KV,分别建立UCS和KV关于TBM施工岩体质量4级分级的隶属度函数。采用单极性S形函数,分别构建UCS和KV的权重函数。这样,基于模糊数学的最大隶属度准则,就可以对TBM施工的岩体质量进行分级。同时,给出3个施工实例,演算表明,预测的结果与TBM施工实际相吻合,表明该分级方法简单而实用,具有很好的应用前景。
According to tunnel boring machine（TBM） advance rate,surrounding rockmass is classified into 4 grades,i.e.good,comparatively good,comparatively bad and bad in working condition.Based on fuzzy mathematics method,two indices of uniaxial compressive strength UCS and rock mass integrity index KV are adopted;and their membership functions of the 4-grade classification of rock mass about TBM construction are established.Meanwhile,Sigmoid function is adopted to depict the weight of UCS and KV rather than a constant as QTBM and traditional fuzzy mathematics method.Based on the maximum membership degree criterion of fuzzy mathematics,the rockmass quality of TBM construction could be classified.Applications of three construction cases show that the prediction results coincide well with the TBM construction advance rate reality.The classification method is simple and feasible;and it can be put into practice.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2011年第6期1225-1229,共5页
Chinese Journal of Rock Mechanics and Engineering
基金
国家重点基础研究发展计划(973)项目(2010CB732001)
中国科学院重要方向性项目(KZCX2-YW-109-2)
关键词
隧道工程
隧道掘进机(TBM)
围岩分级
模糊数学法
tunnelling engineering
tunnel boring machine（TBM）
surrounding rockmass classification
fuzzy mathematics method
