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首页> 外文会议>The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)论文集 >Unascertained Average Grade Model for Surrounding Rock Classification on Hydraulic Tunnels
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Unascertained Average Grade Model for Surrounding Rock Classification on Hydraulic Tunnels

机译：水工隧洞围岩分类的不确定平均等级模型

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摘要

The classification of rock surrounding on hydraulic tunnel has an important significance for guiding design and construction. It is a complex system, especially there is much unascertained information. Due to the above questions, unascertained average Grade method (UAG) for classifying surrounding rock in tunnels is proposed in this paper. Six major factors influenced surrounding rocks stability in tunnel such as rock quality designation, intactness index of rock mass, saturated uniaxial compressive rock strength, longitudinal wave speed, rock mass elasticity resisting coefficient and friction coefficient of structure plane represenf the factors of the UAG model. Taking the Dong Shen Water Supply Reconstruction Project (China) as an engineering background, the UAG model for classifying surrounding rock of tunnels is established by using 30 groups measured data. Each of 30 surrounding rock groups measured data is tested according to the model; the correct rate is high. The UAG model for classifying rocks surrounding in tunnel is tested in experimental classifications of typical rocks surrounding in the Zou Ma Gang tunnel in the Dong Shen Water Supply Reconstruction Project. The classification of 7 groups measured data of the Zou Ma Gang tunnel are predicted by using this model, indicating that the predicted classification was consistent with the actually measured one. Therefore, the results show that the UAG model can be used to predict the classification of tunnel surrounding rock, and the prediction accuracy is acceptable. It is a new way to be used for predicting the classification of rocks surrounding in hydraulic tunnel.
机译：水工隧洞围岩的分类对指导设计施工具有重要意义。这是一个复杂的系统，尤其是有很多未确定的信息。鉴于以上问题，提出了一种不确定的平均坡度法（UAG）对隧道围岩进行分类。影响隧道围岩稳定性的六个主要因素是：岩体质量的确定，岩体的完整性指数，饱和单轴抗压强度，纵波速度，岩体的弹性抗力系数和结构面的摩擦系数，这代表了UAG模型的因素。以中国东深供水改造工程为工程背景，利用30组实测数据建立了UAG隧道围岩分类模型。根据模型测试了30个围岩组的测量数据中的每一个;正确率很高。在东深供水改造项目的邹马岗隧道周围典型岩石的实验分类中，对用于对隧道周围岩石进行分类的UAG模型进行了测试。利用该模型对邹马岗隧道7组实测数据的分类进行了预测，表明预测的分类与实际测得的分类一致。因此，结果表明，UAG模型可用于预测隧道围岩的分类，其预测精度是可以接受的。这是一种用于预测水工隧洞围岩分类的新方法。

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