金属矿山TBM地下始发硐室群设计及关键施工技术研究

Study on design and key construction technology of underground starting chamber group of TBM in metal mine

针对金属矿山TBM地下始发硐室群建设重点技术,分析TBM地下始发硐室群设计依据,提出一体化组装始发与分体组装始发硐室群组成布置及各硐室结构参数计算方法。以某金属矿山TBM工程为例,综合考虑TBM设备、组装吊装设备、地质条件因素及安全因素等,分别得出两种方案中始发硐室群各硐室结构参数,最后通过分析工程量、工期等,比选得出最优方案,并根据最优方案介绍TBM始发硐室群施工关键技术。研究结论可为类似工程提供借鉴依据。

According to the key technology of TBM underground starting chamber group construction in metal mines,the design basis of TBM underground starting chamber group was analyzed,and the composition and layout of integrated assembly starting chamber group and split assembly starting chamber group,as well as the design and calculation method of structural parameters of each chamber were proposed.Taking the TBM project of a metal mine as an example,the structural parameters of the starting chamber group in the two schemes were obtained by comprehensively considering the TBM equipment,assembly and hoisting equipment,geological conditions and safety factors,etc.Finally,the optimal scheme was selected by analyzing the engineering quantity,construction period,etc.According to the optimal scheme,the key construction technologies of the TBM starting chamber group were introduced.The research results can provide reference for similar projects.