一种基于TBM掘进参数的现场岩石强度快速估算模型

doi:10.6040/j.issn.1672-3961.0.2017.028

山东大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (2): 7-13.doi: 10.6040/j.issn.1672-3961.0.2017.028

• 土木工程——隧道与地下工程专题 • 上一篇下一篇

一种基于TBM掘进参数的现场岩石强度快速估算模型

陈恩瑜¹,邓思文¹,陈方明¹,马池帅²

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

收稿日期:2017-01-16 出版日期:2017-04-20 发布日期:2017-01-16
作者简介:陈恩瑜(1969— ),男,安徽滁州人,高级工程师,主要研究方向为水电工程项目管理. E-mail: 326523760@qq.com

Development of a novel rock strength estimation model based on TBM boring performance

CHEN Enyu¹, DENG Siwen¹, CHEN Fangming¹, MA Chishuai²

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

Received:2017-01-16 Online:2017-04-20 Published:2017-01-16

摘要/Abstract

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。

关键词: TBM, 岩石强度, 掘进参数, 估算模型

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.

Key words: in-situ rock strength, estimation model, TBM, boring parameters

中图分类号:

TU43

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.

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 (ENGINEERING SCIENCE), 2017, 47(2): 7-13.

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一种基于TBM掘进参数的现场岩石强度快速估算模型

Development of a novel rock strength estimation model based on TBM boring performance

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