Modeling and prediction for the thrust on EPB TBMs under different geological conditions by considering mechanical decoupling
Modeling and prediction for the thrust on EPB TBMs under different geological conditions by considering mechanical decoupling
复制标题
考虑机械解耦的不同地质条件土压平衡盾构机推力建模与预测
DOI：
10.1007/s11431-016-6096-0
复制
发表时间：
2016-08
影响因子：
4.6
通讯作者：
Kang YiLian
中科院分区：
文献类型：
--
作者：
Qin QingHua;Cai ZongXi;Hou ZhenDe;Kang YiLian
土压平衡式隧道掘进机（EPB TBM）以其高效、对地面结构扰动小等优点在隧道施工中得到了广泛的应用。预测不同地质条件下掘进机的推力对动力系统设计和掘进过程控制具有重要意义。刀盘与地面的相互作用是掘进的核心，地质条件结合工作状态和结构特点决定了推力要求。通过力学解耦分析，得到了刀盘-地面相互作用应力的基本表达式。然后是更多的工程因素（如刀盘拓扑结构、地下覆盖层、其他部位的推力等）。建立了掘进过程中作用在掘进机上的总推力的预测模型。结合我国3个不同地质条件下的地铁工程，对模型进行了验证，并分析了地质、运营和结构参数对地铁作用推力的影响。
EPB TBMs (Earth pressure balance Tunneling Boring Machines) are extensively used in tunneling constructions because of its high efficiency and low disturbance on structures above ground. It is critically significant to predict the thrust acting on TBMs under different geological conditions for both the design of power system and the control of tunneling process. The interaction between the cutterhead and the ground is the core of excavation, through which geological conditions determine the thrust re-quirement combined with operating status and structural characteristics. This paper conducted a mechanical decoupling analysis to obtain a basic expression of the cutterhead-ground interactive stress. Then more engineering factors (such as cutterhead topological structure, underground overburden, thrusts on other parts, etc.) were further considered to establish a predicting model for the total thrust acting on a machine during tunneling. Combined with three subway projects under different geological conditions in China, the model was verified and used to analyze how geological, operating and structural parameters influence the acting thrust.
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影响因子：
1.6
作者：
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DOI：
10.1007/s11431-012-4749-1
发表时间：
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期刊：
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发表时间：
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