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学者姓名：龚秋明
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摘要 ：
隧道施工中,岩石的磨蚀性是影响各类破岩工具磨损的主要因素之一.国际上设计了许多评价岩石磨蚀性的小型试验,其中Cerchar试验因其操作简易性获得了普遍应用,其结果CAI(Cerchar Abrasivity Index)值能够较好地预测破岩工具连续、平稳的正常磨损,目前我国也广泛采用该试验进行岩石磨蚀性评价.由于我国引进该试验时间较晚,尚无国家试验规范,CAI值的等级划分不明确.本文收集了国际上各试验室与机构使用的分级标准,从CAI值分级所用的钢针硬度、CAI值对应的破岩工具磨损量、大量试验数据的分布3个方面综合比较,认为国际岩石力学协会推荐的CAI值分级比较合理.本文对国内Cerchar试验规范创立、岩石磨蚀性评价具有借鉴意义.
关键词 ：
CAI分级 CAI分级 磨蚀性试验 磨蚀性试验 工具磨损 工具磨损
引用：
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| GB/T 7714 | 龚秋明 , 许弘毅 , 李立民 . 岩石磨蚀性指数分级讨论 [J]. | 地下空间与工程学报 , 2021 , 17 (3) : 748-758 . |
| MLA | 龚秋明 等. "岩石磨蚀性指数分级讨论" . | 地下空间与工程学报 17 . 3 (2021) : 748-758 . |
| APA | 龚秋明 , 许弘毅 , 李立民 . 岩石磨蚀性指数分级讨论 . | 地下空间与工程学报 , 2021 , 17 (3) , 748-758 . |
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摘要 ：
以实际工程为背景,设计了具有单一卵石层和2个既有隧道的试验模型.基于自主研发的土压平衡盾构试验平台,开展了卵石地层盾构下穿既有马蹄形隧道和矩形隧道的模型试验.在试验过程中,记录了盾构机的施工动力和排土量,同时监测了试验模型的地表沉降,以及既有隧道的应变和作用在其上的土压力.通过盾构机施工动力和排土量的变化,分析了既有隧道对盾构施工状态的影响.利用盾构下穿过程中盾构排土量的变化,解释了既有隧道周围卵石土体发生塌落破坏的原因.基于实测的地表沉降和作用在既有隧道上土压力的变化规律,揭示了盾构下穿过程中既有隧道与卵石土体的相互作用机理.
关键词 ：
卵石地层 卵石地层 地表沉降 地表沉降 既有隧道 既有隧道 模型试验 模型试验 盾构下穿 盾构下穿 隧道变形 隧道变形
引用：
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| GB/T 7714 | 林庆涛 , 路德春 , 雷春明 et al. 下穿施工时盾构-卵石地层-既有隧道相互作用模型试验研究 [J]. | 北京工业大学学报 , 2021 , 47 (04) : 328-337 . |
| MLA | 林庆涛 et al. "下穿施工时盾构-卵石地层-既有隧道相互作用模型试验研究" . | 北京工业大学学报 47 . 04 (2021) : 328-337 . |
| APA | 林庆涛 , 路德春 , 雷春明 , 李晓强 , 苗金波 , 龚秋明 et al. 下穿施工时盾构-卵石地层-既有隧道相互作用模型试验研究 . | 北京工业大学学报 , 2021 , 47 (04) , 328-337 . |
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摘要 ：
盾构隧道施工刀盘状态实时监测系统研制
关键词 ：
刀盘状态 刀盘状态 实时监测系统 实时监测系统 滚刀磨损 滚刀磨损 滚刀转速 滚刀转速 盾构机 盾构机
引用：
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| GB/T 7714 | 龚秋明 , 王庆欢 , 王杜娟 et al. 盾构隧道施工刀盘状态实时监测系统研制 [J]. | 龚秋明 , 2021 , 58 (2) : 41-50 . |
| MLA | 龚秋明 et al. "盾构隧道施工刀盘状态实时监测系统研制" . | 龚秋明 58 . 2 (2021) : 41-50 . |
| APA | 龚秋明 , 王庆欢 , 王杜娟 , 邱海峰 , 吴帆 , 现代隧道技术 . 盾构隧道施工刀盘状态实时监测系统研制 . | 龚秋明 , 2021 , 58 (2) , 41-50 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
下穿施工时盾构-卵石地层-既有隧道相互作用模型试验研究
关键词 ：
卵石地层 卵石地层 地表沉降 地表沉降 既有隧道 既有隧道 模型试验 模型试验 盾构下穿 盾构下穿 隧道变形 隧道变形
引用：
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| GB/T 7714 | 路德春 , 雷春明 , 李晓强 et al. 下穿施工时盾构-卵石地层-既有隧道相互作用模型试验研究 [J]. | 路德春 , 2021 , 47 (4) : 328-337 . |
| MLA | 路德春 et al. "下穿施工时盾构-卵石地层-既有隧道相互作用模型试验研究" . | 路德春 47 . 4 (2021) : 328-337 . |
| APA | 路德春 , 雷春明 , 李晓强 , 苗金波 , 龚秋明 , 杜修力 et al. 下穿施工时盾构-卵石地层-既有隧道相互作用模型试验研究 . | 路德春 , 2021 , 47 (4) , 328-337 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
The initial stress of the surrounding rock mass will be redistributed during TBM tunneling in a deep tunnel. This process may induce brittle failure of the surrounding rock mass, which has a great impact on TBM construction. The southern section of the Yinhan Water Conveyance Tunnel is mainly composed of massive to intact granite, with a maximum overburden depth of nearly 2000 m. The paper discussed in detail the relationship between various brittle failure degrees at the typical tunnel faces and TBM performance. The typical patterns, such as undamaged, slabbing, and strain rockburst at the tunnel face, and the corresponding characteristics of the TBM performance parameters were revealed. As the severity of damage increases, the rock mass boreability is improved, the cutterhead thrust is reduced, and the penetration increases, but there is an upper limit. It is noteworthy that the field penetration index (FPI) fluctuation expressed by the coefficient of variation (CV) varies significantly in different stress states. Based on the excavation response of TBM, a Rockburst Warning Index (RWI) was proposed to assess the brittle failure degree of the excavated rock mass in real-time. The results of the study can provide some insights into the prediction of TBM performance and the early warning of rockburst in deep-buried hard rock grounds.
关键词 ：
Brittle failure Brittle failure Hard rock Hard rock In-situ stress In-situ stress Rockburst warning index (RWI) Rockburst warning index (RWI) TBM performance TBM performance
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| GB/T 7714 | Lu, Jianwei , Gong, Qiuming , Yin, Lijun et al. Study on the tunneling response of TBM in stressed granite rock mass in Yinhan Water Conveyance tunnel [J]. | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY , 2021 , 118 . |
| MLA | Lu, Jianwei et al. "Study on the tunneling response of TBM in stressed granite rock mass in Yinhan Water Conveyance tunnel" . | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 118 (2021) . |
| APA | Lu, Jianwei , Gong, Qiuming , Yin, Lijun , Zhou, Xiaoxiong . Study on the tunneling response of TBM in stressed granite rock mass in Yinhan Water Conveyance tunnel . | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY , 2021 , 118 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Intelligent tunnelling has become an important direction for the development of TBM technology recently. As a result of the interaction between rock mass and TBM cutterhead, mucks are very important for predicting rock mass conditions and evaluating rock breaking efficiency. A real-time muck analysis system for assistant intelligence TBM tunnelling is proposed in this paper. Machine vision was applied to take the muck images continuously in the high-speed conveyor belt. The image segmentation and feature extraction of the mucks are conducted by using a deep learning algorithm. The proposed system also measured the mass and volume flow of the muck by installing a belt scale and a scanner to monitor the stability of the rock mass on the tunnel face. After the system was completed, it was installed on an indoor simulation experimental platform. A series of experiments were conducted to verify the design functions and measurement accuracy. Additionally, the system was applied to a TBM tunnelling project. The application results showed that the proposed system reached its design requirements and functions, and can provide muck data support for further assistant intelligent TBM tunnelling. © 2020 Elsevier Ltd
关键词 ：
Belt conveyors Belt conveyors Deep learning Deep learning Image segmentation Image segmentation Learning algorithms Learning algorithms Rock mechanics Rock mechanics Rocks Rocks
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| GB/T 7714 | Gong, Qiuming , Zhou, Xiaoxiong , Liu, Yongqiang et al. Development of a real-time muck analysis system for assistant intelligence TBM tunnelling [J]. | Tunnelling and Underground Space Technology , 2021 , 107 . |
| MLA | Gong, Qiuming et al. "Development of a real-time muck analysis system for assistant intelligence TBM tunnelling" . | Tunnelling and Underground Space Technology 107 (2021) . |
| APA | Gong, Qiuming , Zhou, Xiaoxiong , Liu, Yongqiang , Han, Bei , Yin, Lijun . Development of a real-time muck analysis system for assistant intelligence TBM tunnelling . | Tunnelling and Underground Space Technology , 2021 , 107 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
During TBM tunnelling, the rock breaking by cutters usually induces vibration. The cutterhead vibration is composed of all cutter vibrations. On the one hand, cutterhead vibration directly affects the life of the cutter, cutterhead and main gear. On the other hand, cutterhead vibration reflects the TBM excavation performance. In this paper, a cutterhead vibration monitoring system for TBM tunnelling was developed. The system consisted of the data acquisition module, communication and control module, as well as data processing and display module. Acceleration sensor, gyroscope and clock chip were integrated into a sensor board to acquire triaxial vibration data, cutterhead rotating status and acquisition time. The installation structure with anti-hit and water-proof functions was designed to ensure the stable operation of the system. Three types of data acquisition modes were proposed to meet the different monitoring scenarios. The system was applied in a TBM tunnelling project. Based on the normal monitored data in TBM tunnelling and penetration tests data, the differences in amplitude and frequency of triaxial vibration, as well as the effect of geological conditions and operating parameters on cutterhead vibration characteristics were analyzed. The engineering application showed that this system can reflect the changes of the geological conditions and operating parameters, providing guidance for the TBM tunnelling.
关键词 ：
Cutterhead vibration Cutterhead vibration Engineering application Engineering application Monitoring system Monitoring system Penetration test Penetration test TBM TBM
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| GB/T 7714 | Wu, Fan , Gong, Qiuming , Li, Zhigang et al. Development and application of cutterhead vibration monitoring system for TBM tunnelling [J]. | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES , 2021 , 146 . |
| MLA | Wu, Fan et al. "Development and application of cutterhead vibration monitoring system for TBM tunnelling" . | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 146 (2021) . |
| APA | Wu, Fan , Gong, Qiuming , Li, Zhigang , Qiu, Haifeng , Jin, Cheng , Huang, Liu et al. Development and application of cutterhead vibration monitoring system for TBM tunnelling . | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES , 2021 , 146 . |
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摘要 ：
盾构隧道施工中,由于盾构刀盘后面为有压舱,刀盘工作处于"黑箱"状态.为了实时监测盾构掘进过程中刀盘滚刀及刀盘整体的工作状态,研发了一套盾构隧道施工刀盘状态实时监测系统.该系统由传感器、控制与数据传输及算法与显示三个子系统组成;传感器子系统集成了自制的滚刀磨损量与转速传感器、温度传感器、数据采集模块和电源;集成的传感器安装于刀盘滚刀刀箱内,可实时监测滚刀的磨损量、转速与刀盘的温度.采集的数据通过有线或无线传输到中心端,再通过有线方式传送给上位机.上位机软件集成了盾构设计参数及隧道地层参数、盾构施工参数、传感器监测参数,可实时显示传感器采集的参数,并结合地层条件与盾构施工参数综合判定盾构刀盘工作状态,预测滚刀使用寿命.经过实验室测试、工厂测试,结果表明该系统满足设计要求,可用于盾构刀盘工作状态监测.
关键词 ：
刀盘状态 刀盘状态 实时监测系统 实时监测系统 滚刀磨损 滚刀磨损 滚刀转速 滚刀转速 盾构机 盾构机
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| GB/T 7714 | 龚秋明 , 王庆欢 , 王杜娟 et al. 盾构隧道施工刀盘状态实时监测系统研制 [J]. | 现代隧道技术 , 2021 , 58 (2) : 41-50 . |
| MLA | 龚秋明 et al. "盾构隧道施工刀盘状态实时监测系统研制" . | 现代隧道技术 58 . 2 (2021) : 41-50 . |
| APA | 龚秋明 , 王庆欢 , 王杜娟 , 邱海峰 , 吴帆 . 盾构隧道施工刀盘状态实时监测系统研制 . | 现代隧道技术 , 2021 , 58 (2) , 41-50 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
The rock mass classification methods developed to evaluate rock mass stability and tunnel support design for blast and drill tunnels are not suitable to guide tunneling by tunnel boring machine (TBM), such as selection of TBM types, determination of construction scheme and so on. By comprehensively considering the rock mass boreability and stability, a modified rock mass classification system for TBM tunnels is proposed on the basis of the hydropower rock mass classification (HC) method of China. The input parameters are five rock mass parameters as the same as the HC method. In addition, the tunnel diameter is needed to estimate the TBM advance rate. The structure and parameter determination of the classification system are explained and statistically analyzed in details. This system can be applied to evaluate the feasibility of TBM construction and serve as the basis for selection of TBM types and design parameters in the pre-construction phase. Furthermore, it can also be applied to estimate TBM performance and guide tunnel support for a given ground condition in the design phase, and to optimize TBM operational parameters during the construction phase as well. An example is presented to illustrate the application of the proposed system. The limitations of the proposed system and further studies are also discussed. © 2020 Elsevier Ltd
关键词 ：
Boring machines (machine tools) Boring machines (machine tools) Construction equipment Construction equipment Drilling machines (machine tools) Drilling machines (machine tools) Rock mechanics Rock mechanics Rocks Rocks Tunnels Tunnels
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| GB/T 7714 | Gong, Qiuming , Lu, Jianwei , Xu, Hongyi et al. A modified rock mass classification system for TBM tunnels and tunneling based on the HC method of China [J]. | International Journal of Rock Mechanics and Mining Sciences , 2021 , 137 . |
| MLA | Gong, Qiuming et al. "A modified rock mass classification system for TBM tunnels and tunneling based on the HC method of China" . | International Journal of Rock Mechanics and Mining Sciences 137 (2021) . |
| APA | Gong, Qiuming , Lu, Jianwei , Xu, Hongyi , Chen, Zuyu , Zhou, Xiaoxiong , Han, Bei . A modified rock mass classification system for TBM tunnels and tunneling based on the HC method of China . | International Journal of Rock Mechanics and Mining Sciences , 2021 , 137 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
In this work, comprehensive numerical modelling was conducted on the full-scale linear cutting test with a TBM disc cutter. Several numerical techniques, including local particle refinement and the coupling of different numerical methods (4D-LSM, DDA, and NMM), were adopted to more realistically reproduce the actual experimental loading conditions. The coupled numerical method was first calibrated against the normal cutting force of the normal linear cutting test with large blocks of granite. Following the calibration, numerical predictions of the inclined cutting and double-channel continuous cutting processes were conducted, and the numerical results showed good agreement with previous experimental observations. The influences of cutting speed, particle size, and multiscale coupling techniques were further discussed, and some suggestions were derived on the selection of proper numerical parameters and techniques in the numerical simulation of 3D large-scale TBM disc cutting lab tests. © 2021 Elsevier Ltd
关键词 ：
Boring machines (machine tools) Boring machines (machine tools) Construction equipment Construction equipment Cutting Cutting Cutting tools Cutting tools Numerical methods Numerical methods Numerical models Numerical models Particle size Particle size
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| GB/T 7714 | Jiang, Baoyuan , Zhao, Gao-Feng , Gong, Qiuming et al. Three-dimensional coupled numerical modelling of lab-level full-scale TBM disc cutting tests [J]. | Tunnelling and Underground Space Technology , 2021 , 114 . |
| MLA | Jiang, Baoyuan et al. "Three-dimensional coupled numerical modelling of lab-level full-scale TBM disc cutting tests" . | Tunnelling and Underground Space Technology 114 (2021) . |
| APA | Jiang, Baoyuan , Zhao, Gao-Feng , Gong, Qiuming , Zhao, Xiao-Bao . Three-dimensional coupled numerical modelling of lab-level full-scale TBM disc cutting tests . | Tunnelling and Underground Space Technology , 2021 , 114 . |
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