| 一种基于TBM掘进参数的现场岩石强度快速估算模型 |
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| 引用本文： | 陈恩瑜,邓思文,陈方明,马池帅. 一种基于TBM掘进参数的现场岩石强度快速估算模型[J]. 山东大学学报(工学版), 2017, 47(2): 7-13. DOI: 10.6040/j.issn.1672-3961.0.2017.028 |
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| 作者姓名： | 陈恩瑜 邓思文 陈方明 马池帅 |
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| 作者单位： | 1. 中国葛洲坝集团第三工程公司, 陕西 西安 710000;2. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室, 湖北 武汉 430071 |
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| 摘 要： | 基于隧道掘进机(tunnel boring machine, TBM)现场实际掘进参数与岩石强度的相关性,提出一种现场岩石强度快速估算模型。该模型详细分析了开敞式TBM现场实际掘进参数的趋势,建立了其与岩石单轴抗压强度(uniaxial compressive strength, UCS)的拟合关系式;根据回归系数R2排序:0.761 2(贯入度指数)> 0.759 5(推力)> 0.691 5(掘进比能)>0.598 6(扭矩)> 0.561 5(贯入度),确定采用贯入度指数(field penetration index, FPI)快速估算岩石强度UCS。与以往岩石强度经验模型对比,该估算模型更具针对性和适用性。研究成果为TBM工程岩石强度的快速估算提供了一种新的切实可行的思路。
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| 关 键 词： | TBM 岩石强度 掘进参数 估算模型 |
| 收稿时间： | 2017-01-16 |
Development of a novel rock strength estimation model based on TBM boring performance |
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| CHEN Enyu,DENG Siwen,CHEN Fangming,MA Chishuai. Development of a novel rock strength estimation model based on TBM boring performance[J]. Journal of Shandong University of Technology, 2017, 47(2): 7-13. DOI: 10.6040/j.issn.1672-3961.0.2017.028 |
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| Authors: | CHEN Enyu DENG Siwen CHEN Fangming MA Chishuai |
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| Affiliation: | 1. No.3 Engineering Co., Ltd., China Gezhouba Group, Xi'an 710000, Shaanxi, China;2. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, Hubei, China |
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| Abstract: | Based on the analysis of the correlation between in-situ rock strength and TBM performance, a novel rock strength estimation model was proposed. To ensure the in-situ rock strength more accurately, variations of average TBM performance parameters along the tunnel alignment was analyzed in detail, then the fitting relationship with uniaxial compressive strength(UCS)was established. UCS was estimated rapidly by the field penetration index(FPI)based on regression coefficient R2: 0.761 2(field penetration index, FPI)> 0.759 5(thrust)>0.691 5(specific energy, SE)>0.598 6(torque)>0.561 5(penetration). Compared with the previous works on rock strength estimation, the novel rock strength estimation model is more targeted and applicable. The preliminary results of this study provide a more practical and feasible idea for in-situ rock strength estimation of TBM engineerings. |
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| Keywords: | in-situ rock strength estimation model TBM boring parameters |
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