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首页> 外文期刊>Tunnelling and underground space technology >TBM performance prediction model with a linear base function and adjustment factors obtained from rock cutting and indentation tests
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TBM performance prediction model with a linear base function and adjustment factors obtained from rock cutting and indentation tests

机译：具有线性基函数和调整因子的TBM性能预测模型，该参数来自岩石切割和压痕测试

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摘要

A new TBM performance prediction model consisting of a basic penetration function and adjustment factors for different boundary conditions is presented. The basic penetration function is implemented as a linear function with an offset from zero based on Frenzel et al. (2012). Adjustment factors are used to refine the model which reflects the model architecture used by Gehring (1995). The well-established CSM model (Rostami, 1997) was used as a reference to account for tool geometry and spacing. In addition, a new approach to account for rock brittleness is presented based on the rock mechanical interpretation of Punch penetration tests (PPT). The proposed new model was developed using full scale linear rock cutting tests from 19 igneous, metamorphic, sedimentary and artificial rock types. It was validated with 36 TBM penetration tests from tunnels in the Swiss Alps (Villeneuve, 2017), Koralm tunnel and RossAga tunnel (Wilfing, 2016). It has a strong predictive capability for a wide range of rock and rock mass parameters. The main strengths of the model are high accuracy, simplicity of the basic penetration function and the highly transparent development process that enables a clear understanding of its strengths and limitations.
机译：提出了一种新的TBM性能预测模型，该模型由基本的渗透函数和针对不同边界条件的调整因子组成。根据Frenzel等人的观点，基本的渗透函数被实现为具有零偏移量的线性函数。 （2012）。调整因子用于完善模型，该模型反映了Gehring（1995）使用的模型架构。公认的CSM模型（Rostami，1997）被用作解释刀具几何形状和间距的参考。此外，根据岩石力学对冲头穿透试验（PPT）的解释，提出了一种解决岩石脆性的新方法。拟议的新模型是使用19种火成岩，变质岩，沉积岩和人造岩的全面线性岩石切割试验开发的。在瑞士阿尔卑斯山的隧道（Villeneuve，2017），科拉姆隧道和RossAga隧道（Wilfing，2016）进行了36道TBM渗透测试，验证了该方法的有效性。它对各种岩石和岩体参数具有很强的预测能力。该模型的主要优点是高精度，基本渗透功能的简单性和高度透明的开发过程，从而可以清楚地了解其优点和局限性。

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