摘要
大伙房水库输水隧洞工程长度大、支洞多,断面形式和围岩类别复杂。对TBM施工掘进速度、长距离掘进机可靠性以及对不良地质适应性要求高,TBM洞内安装(拆卸)洞室大、边墙高。为了合理设计和施工,利用平面有限元对TBM安装洞室稳定性进行了计算分析,并对其施工动态进行了三维模拟计算,所得结论可供相关工程参考。
Dahuofang reservoir's water transmission tunnel, with several branch tunnels,is very long.Its section forms and surrounding rock types are very complicated.So it has high requirements for TBM construction drifting velocity, reliability of drifting machine and adaptability to poor geology.TBM installation(or disassembly)cavern is large and boundary wall is high too.In order to design and construct reasonably, the stability of TBM installation house is calculated and analyzed by using plane finite element model, and its construction dynamics is studied by means of three-dimensional numerical simulation method. The results,can provide a reference for relative engineering.
出处
《石家庄铁道学院学报》
2003年第4期1-4,22,共5页
Journal of Shijiazhuang Railway Institute
关键词
输水隧洞
TBM安装
洞室稳定性
支护结构
tunnel
enlarge installation house
stability of installation house
