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Deep sea mineral resources and underground space as well as infrastructure for sustainable and liveable cities
王建国, 谢和平, Chunfai Leung, 李晓昭
发布时间：2024-07-03
关键词：Deep sea mineral resources and underground space as well infrastructure for sustainable liveable cities
摘要：This issue covers the papers on two special themes: (1) Mineral resources from deep sea—Science and Engineering and (2) Planning and development of underground space and infrastructure for sustainable and liveable cities.The special theme of “Mineral resources from deep sea—Science and Engineering” is on the exploration and transport of mineral resources from deep sea. The mineral resources...
阅读全文 PDF 引用Numerical study on gas production via a horizontal well from hydrate reservoirs with different slope angles in the South China Sea
南海不同坡角天然气水合物储层水平井开采数值研究
骆汀汀,宋建霖, Xiang Sun, Fanbao Cheng, Madhusudhan Bangalore Narasimha Murthy, Yulu Ch
发布时间：2024-06-03
关键词：effective stress, low‐permeability reservoirs, natural gas hydrate production, numerical simulation,settlement, slope angle, the South China Sea
摘要：中国南海海底蕴藏着丰富的天然气水合物，被视为未来能源的希望。然而，开采这些深海资源面临挑战，尤其是低渗透性泥质粉砂储层的特殊性，及其对开采技术和储层稳定性的高要求。坡角这一重要因素常被忽略。本研究首次系统分析了坡角对水平井水合物开采中储层沉降的影响，为大规模安全高效开采提供了科学指导。
阅读全文 PDF 引用Small-scale fire tests in the underwater tunnel section model with new sidewall smoke extraction
带有新型侧壁排烟系统的水下隧道火灾缩尺寸模型实验研究
岳顺禹, Ruifeng Miao, Huihang Cheng, 钟茂华, Xiujun Yang
发布时间：2024-05-29
Interaction between internal solitary waves and the seafloor in the deep sea
Zhuangcai Tian, Jinjian Huang, Jiaming Xiang, Shaotong Zhang, Jinran Wu, Xiaolei Liu, Tingting Luo,
发布时间：2024-05-08
关键词：bottom boundary layer, interaction, internal solitary wave, seafloor, sediment
摘要：AbstractInternal solitary wave (ISW), as a typical marine dynamic process in the deep sea, widely exists in oceans and marginal seas worldwide. The interaction between ISW and the seafloor mainly occurs in the bottom boundary layer. For the seabed boundary layer of the deep sea, ISW is the most important dynamic process. This study analyzed the current status, hotspots, and frontiers of researc...
阅读全文 PDF 引用Bibliometric analysis of research challenges and trends in urban underground space
城市地下空间研究挑战与趋势的文献计量分析
张友，郑亮，何灵玲，焦玉勇， 张友，郑亮，何灵玲，焦玉勇，彭汉发，Ranjith P. Gamage
发布时间：2024-04-16
Numerical study on local scour characteristics around submarine pipelines in the Yellow River Delta silty sandy soil under waves and currents
波流作用下黄河三角洲粉质砂土海床海底管道周围局部冲刷特征数值研究
于鹏, Ruigeng Hu, Jike Zhang, Qi Yang, Jieru Zhao, Lei Cao, 朱成浩
发布时间：2024-02-20
Offshore high-grade limemud resources of west coast of India: Economic potential and industrial applications
Anil Kumar Adukadukkam, Rachna Pillai, Mamatha Puthiyathara Kanakamma
发布时间：2024-01-10
关键词：beneficiation, industrial grade, offshore limemud, west coast of India
摘要：Chemical, physical, mineralogical, beneficiation, and agglomeration studies found the offshore limemud as a potential replacement for limestone in the cement, filler, blast furnace, steel melting shop, lime production, paint, and Grade-I steel industries. An assessment of mining and transportation costs indicates that the offshore limemud (USD 5–6/ton) is more cost-effective than that imported from other countries (USD16-18/ton). With several advantageous factors like low impurity, mode of occurrence in overburden-free stratified form, fine-grained slurry nature, and shallow water depth, sustainable mining of offshore limemud could be a future reality with controllable technological, economic, and environmental challenges.
阅读全文 PDF 引用Physical and mechanical properties and microstructures of submarine soils in the Yellow Sea
探究黄海海底-土体的物理力学性质及微观结构
田壮才, Yihua Chang, Sichao Chen, Gengchen Wang, Yanhong Hu, Chuan Guo, Lei Jia, Lei Song, J
发布时间：2023-11-23
关键词：Physical and mechanical properties microstructures of submarine soils in the Yellow Sea
摘要：AbstractIn recent years, the exploration of seabed has been intensified, but the submarine soils of silt and sand in the Yellow Sea area have not been well investigated so far. In this study, the physical and mechanical properties of silt and sand from the Yellow Sea were measured using a direct shear apparatus and their microstructures were observed using a scanning electron microscope. The te...
阅读全文 PDF 引用Mechanical responses of underground carriageway structures due to construction of metro tunnels beneath the existing structure: A case study
Xin Han, Fei Ye, Xingbo Han, Chao Ren, Jing Song, Ruliang Zhao
发布时间：2023-11-23
关键词：Mechanical responses of underground carriageway structures due to construction metro tunnels beneath the existing structure A case study
摘要：1 INTRODUCTIONDue to the convenience and efficiency of metro lines, increasingly more cities are planning and constructing new metro lines. Therefore, traversing of a new tunnel traverses around existing structures is becoming common, resulting in the formation of a structural system including tunnels, underground stations, building foundations, and so on (Chen et al., 2016; Guo, 2011; Huang et...
阅读全文 PDF 引用Research on the design method for uniform wear of shield cutters in sand–pebble strata
突破砂卵石地层挑战：盾构刀具均匀磨损设计的创新探索
张晋勋, 李博, Guihe Wang, Yusheng Jiang, Hua Jiang, Minglun Yin, Zhengyang Sun
发布时间：2023-11-15
Seabed structures and foundations related to deep-sea resource development: A review based on design and research
共探深海之构：中国与挪威联手揭秘浮式结构、海底生产与锚泊基础
芮圣洁, Haojie Zhang, Hang Xu, Xing Zha, Mengtao Xu,沈侃敏
发布时间：2023-05-31
关键词：anchors,floating structures, pipelines, risers, subsea foundations
摘要：Highlights Provide a brief introduction about seabed structures and foundations related to deep-sea resource development. Introduce subsea production structures, including subsea manifolds and their foundations (mudmats, suction piles), from a design perspective. Analyze the basic characteristics and design methods of deep-sea pipelines, including subsea pipelines and risers. Introduce the installation and bearing capacity of anchors in deep-sea, and summarize seabed trench influence on anchor capacity.
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Study on creep deformation and energy development of underground surrounding rock under four-dimensional support
四维支护下地下围岩蠕变变形和能量发展的研究
马占国, 孙钧宇, Peng Gong, Pengfei Yan, Nan Cui, Ruichong Zhang
发布时间：2024-03-07
关键词：coal mines, elastic strain energy, four‐dimensional support, large roadway depth, long‐term stabilitycontrol, plastic deformation, surrounding roc
摘要：在地下工程领域，深部高应力巷道的变形控制是一项亟待攻克的重大课题。本研究集中探讨了四维支护巷道围岩稳定性随埋深和蠕变时间的演化规律。实地监测数据进一步证实，相较于传统的支护手段，四维支护技术在控制深部巷道围岩长期稳定性方面展现出了更加卓越的效果。这项研究不仅丰富了深部巷道支护理论体系，而且为实际工程设计提供了有力的技术支持。
阅读全文 PDF 引用A preliminary site selection system for underground hydrogen storage in salt caverns and its application in Pingdingshan, China
绿色氢储存选址系统：解决氢能需求的关键
黄亮朝,方琰藜 ,侯正猛 Yachen Xie, Lin Wu, Jiashun Luo, Qichen Wang, Yilin Guo,
发布时间：2024-02-28
Research on damage failure mechanism and dynamic mechanical behavior of layered shale with different angles under confining pressure
含特征层理页岩围压下的秘密：损伤机理与动态力学行为解密
Ning Luo, Haohao Zhang, Yabo Chai, Penglong Li, Cheng Zhai, Jianan
发布时间：2024-01-29
关键词：Research on damage failure mechanism and dynamic mechanical behavior of layered shale with different angles under confining pressure
摘要：岩石工程的深入发展使得高地应力下岩石的动态力学性质及破坏特性成为研究的焦点。在高低应力下的变形稳定性和关键控制因素的识别是岩石力学和工程未来研究中的难题。高地应力、温度、渗透压和采矿干扰的复杂环境导致了围压不稳定性和岩爆的不可避免性。本研究建立了围压作用下考虑层理效应的页岩有限元模型。研究结果可作为深部资源开采的关键技术参数。
阅读全文 PDF 引用Mechanical properties and fracture surface roughness of thermally damaged granite under dynamic splitting
热损伤花岗岩动态劈裂力学性能断面粗糙度研究
钱一锦,贾蓬，Songze Mao, Jialiang Lu
发布时间：2024-01-12
Spatiotemporal mapping of (ultra-)mafic magmatic mine areas: Implications of economic and political realities in China
中国基性、超基性岩矿床采矿场地时空分布
李贺领, 唐亮, Tim T. Werner, Zhengmeng Hou, Fan Meng, Jingjing Li
发布时间：2024-01-12
Development and applications of the quasi-dynamic triaxial apparatus for deep rocks
准扰动态TFD-2000/D三轴仪，深部岩石力学研究重要进展之一
罗金志, 蔡燕燕, 俞缙, Jianzhi Zhang, Yaoliang Zhu, Yao Wei
发布时间：2024-01-12
关键词：Development and applications of the quasidynamic triaxial apparatus for deep rocks
摘要：随着地球浅表层资源的逐渐枯竭和地下工程建设需求的日益增长，向地球深部探索并开采资源已成为全球发展的共识。然而，深部岩体工程病害的频繁发生阻碍了深部岩体工程的安全施工与运营。为了调和这一矛盾，我们迫切需要认清深浅部岩石本构关系的异质性。本文对目前配备动态扰动加载系统的主流岩石力学仪器进行了系统梳理，并成功研发出两代TFD-2000/D三轴仪，不仅为深部岩石力学研究领域提供了有力的工具补充，同时也具有重要的理论参考价值。
阅读全文 PDF 引用Dynamically triggered seismicity on a tectonic scale: A review
地质构造尺度上的动力触发地震研究综述
戚承志, 王明洋, Gevorg Kocharyan, Artem Kunitskikh, Zefan Wang
发布时间：2024-01-12
The role of temperature-enhanced fault closure in promoting postinjection pressure diffusion and seismicity in enhanced geothermal systems
增强型地热系统中关井后热效应对诱发地震的影响
冀胤霖, 陈跃都, Hannes Hofmann, Yuan Zhang, Arno Zang, Günter Zimmermann
发布时间：2023-11-23
关键词：The role of temperatureenhanced fault closure in promoting postinjection pressure diffusion and seismicity enhanced geothermal systems
摘要：AbstractPost shut-in seismic events in enhanced geothermal systems (EGSs) occur predominantly at the outer rim of the co-injection seismic cloud. The concept of postinjection fracture and fault closure near the injection well has been proposed and validated as a mechanism for enhancing post shut-in pressure diffusion that promotes seismic hazard. This phenomenon is primarily attributed to the p...
阅读全文 PDF 引用Development and application of novel high-efficiency composite ultrafine cement grouts for roadway in fractured surrounding rocks
基于复合超细水泥基注浆材料的破裂围岩巷道深浅孔耦合注浆加固技术研究
田茂霖, 陈绍杰, Lijun Han, Hongtian Xiao
发布时间：2023-11-08
关键词：Development and application of novel highefficiency composite ultrafine cement grouts for roadway in fractured surrounding rocks
摘要：煤炭资源是国家能源安全的“压舱石”，巷道的安全稳定是煤炭安全高效回采的重要保障。岩体注浆作为地下工程治理的关键技术在煤矿巷道围岩加固中得到了较为广泛的应用，但注浆材料性能在很大程度上决定着注浆加固的效果。鉴于此，本文研制了新型高效复合超细水泥基注浆材料，提出了破裂围岩巷道深浅孔耦合注浆加固技术，研究结果丰富了深部巷道灾害治理技术，对实现煤矿安全高效生产具有重要的工程价值。
阅读全文 PDF 引用Fan-hinged shear instead of frictional stick–slip as the main and most dangerous mechanism of natural, induced, and volcanic earthquakes in the earth's crust
俄罗斯资深教授发表系列文章-2：风扇机制 - 地震理解的范式转变
Boris G. Tarasov
发布时间：2023-11-07
关键词：Fanhinged shear instead of frictional stickslip as the main and most dangerous mechanism natural induced volcanic earthquakes in earths crust
摘要：1 INTRODUCTIONFrictional stick–slip instability along pre-existing faults has been accepted as the main mechanism of earthquakes for about 60 years, following the publication of laboratory results by Brace and Byerlee (1966). The gist of their work is the conclusion that the stick–slip instability along pre-existing faults in rock specimens reflects all the features inherent in earthquakes, s...
阅读全文 PDF 引用Dominant factors in MiniCone, CPT and pile correlations: A data-based approach
揭秘MiniCone、CPT和桩之间的关键联系：基于数据的深度探索
Seyed Sajad Shirani, Abolfazl Eslami, Amirhossein Ebrahimipour, Moses Karakouzian
发布时间：2023-11-23
关键词：Dominant factors in MiniCone CPT and pile correlations A databased approach
摘要：1 INTRODUCTIONDevices and equipment can be transported to the site for performing in situ tests, aiming to overcome the challenges associated with conventional methods comprising drilling, sampling, transportation, remolding, and testing (Schmertmann, 1978). Research has been conducted to provide the possibility of modeling real conditions in practice from different aspects representing realist...
阅读全文 PDF 引用New understandings on initiation and evolution of disasters in deep underground
Jianguo Wang, Heping Xie, Chunfai Leung, Xiaozhao Li
发布时间：2023-10-24
关键词：New understandings on initiation and evolution of disasters in deep underground
摘要：The editors wish to highlight the articles appearing in this issue. The first article, entitled “New physics of supersonic ruptures” by Boris G. Tarasov, concerns the development of a new theory on the potential occurrence of ruptures after deep underground earthquakes. Two other articles belong to our first special theme of “Disaster evolution in deep underground.” The final two articles i...
阅读全文 PDF 引用New physics of supersonic ruptures
俄罗斯资深教授发表系列文章-1：震源动力关键机制的重大突破
Boris G. Tarasov
发布时间：2023-10-12
关键词：New physics of supersonic ruptures
摘要：AbstractUntil recently, it is believed that the rupture speed above the pressure wave is impossible since spontaneously propagating ruptures are driven by the energy released due to the rupture motion, which is transferred through the medium to the rupture tip region at the maximum speed equal to the pressure wave speed. However, the apparent violation of classic theories has been revealed by n...
阅读全文 PDF 引用Exploring the combination of biochar-amended soil and automated irrigation technology for water regulation and preservation in green infrastructure
基于生物炭改良土与自动灌溉技术相结合的绿色基础设施中水分调控与保护初探
朱鸿鹄, Yuanxu Huang, Haihong Song, Jian Chen, Songlei Han, Tanwee Mazumder, Ankit Garg
发布时间：2023-11-23
关键词：Exploring the combination of biocharamended soil and automated irrigation technology for water regulation preservation in green infrastructure
摘要：在全球环境治理和可持续发展战略的背景下，深地废料储存设施的安全与环境保护成为了国际社会广泛关注的焦点。生物炭，作为一种多功能的碳汇材料，近年来在土壤改良、水质净化和碳封存等方面展现出巨大的应用潜力。本文研究了改良后的生物炭土壤与地下滴灌相结合的处理方式对土壤持水特性的影响。这项技术不仅能够在绿色基础设施中实现精准的水分管理，还能有效地构建起一道保护深地废料储存设施周边生态环境的绿色防线。
阅读全文 PDF 引用Coupling effects of temperature, confining pressure, and pore pressure on permeability and average pore size of Longmaxi shale
龙马溪页岩：温压交错下的秘密
Xiaoyan Zhang, Hongsen Li, Xue Tan, Guoliang Li, Hua Jiang
发布时间：2023-08-17
关键词：absolute permeability, apparent permeability, gas slippage factors, pore width, shale
摘要：AbstractThe evolution due to temperature and pressure of shale reservoir permeability affects the productivity evaluation and development decision of shale gas reservoirs, which is very important for the exploration and development of unconventional gas reservoirs. This study analyzed the coupling effects of temperature (25, 50, and 75°C), effective stress (15 and 30 MPa), and pore pressure (0...
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Damage evolution of surrounding sandstone rock under charging–discharging cyclic loading in the natural gas storage of abandoned mines based on the discrete element method
Zhanguo Ma, Junyu Sun, Peng Gong, Erwin Oh, Jun Hu, Ruichong Zhang
发布时间：2024-05-30
关键词：damage evolution model of surrounding rock, discrete element method, force chains, gascharging–discharging cycle, gas storage in abandoned mine
摘要：AbstractGas storage in abandoned mines is one way to reuse waste space resources. The surrounding rock of gas storage reservoirs in underground roadways undergoes damage and deformation under the cyclic loading of gas charging and discharging, which can pose a risk to the safety of the reservoirs. This study establishes a true triaxial numerical model of rock mass with the discrete element meth...
阅读全文 PDF 引用Deep sea mineral resources and underground space as well as infrastructure for sustainable and liveable cities
Jianguo Wang, Heping Xie, Chunfai Leung, Xiaozhao Li
发布时间：2024-05-27
关键词：Deep sea mineral resources and underground space as well infrastructure for sustainable liveable cities
摘要：This issue covers the papers on two special themes: (1) Mineral resources from deep sea—Science and Engineering and (2) Planning and development of underground space and infrastructure for sustainable and liveable cities.The special theme of “Mineral resources from deep sea—Science and Engineering” is on the exploration and transport of mineral resources from deep sea. The mineral resources...
阅读全文 PDF 引用Application of machine learning and deep learning in geothermal resource development: Trends and perspectives
Abdulrahman Al-Fakih, Abdulazeez Abdulraheem, Sanlinn Kaka
发布时间：2024-05-23
关键词：artificial intelligence, deep learning, geothermal energy development, machine learning
摘要：AbstractThis study delves into the latest advancements in machine learning and deep learning applications in geothermal resource development, extending the analysis up to 2024. It focuses on artificial intelligence's transformative role in the geothermal industry, analyzing recent literature from Scopus and Google Scholar to identify emerging trends, challenges, and future opportunities. The re...
阅读全文 PDF 引用Performance analysis of deep borehole heat exchangers for decarbonization of heating systems
Andreas E. D. Lund
发布时间：2024-05-16
关键词：clean energy, deep borehole exchangers, energy transition, geothermal heat, ground‐coupledheat pump
摘要：AbstractMeeting the climate change mitigation targets will require a substantial shift from fossil to clean fuels in the heating sector. Heat pumps with deep borehole exchangers are a promising solution to reduce emissions. Here the thermal behavior of deep borehole exchangers (DBHEs) ranging from 1 to 2 km was analyzed for various heat flow profiles. A strong correlation between thermal energ...
阅读全文 PDF 引用Study on the variation of the permeability coefficient of soil–rock mixtures in fault zones under different stress states
Wenhui Tan, Shuang Liang, Xuewen Ma, Pengfei Wang
发布时间：2024-05-14
关键词：permeability coefficient, rock block percentage, sensitivity analysis, soil–rock mixture, stress state
摘要：AbstractAs the first gold mine discovered at the sea in China and the only coastal gold mine currently mined there, Sanshandao Gold Mine faces unique challenges. The mine's safety is under continual threat from its faulted structure coupled with the overlying water. As the mining proceeds deeper, the risk of water inrush increases. The mine's maximum water yield reaches 15 000 m3/day, which is...
阅读全文 PDF 引用Experimental study on the damage characteristics of cyclic disturbance and acoustic emission characteristics of different types of sandstones under high stress in deep mines
Yujing Jiang, Bin Liang, Dong Wang, Ling Dong, Hengjie Luan, Changsheng Wang, Jiankang Liu
发布时间：2024-05-10
关键词：acoustic emission, cyclic perturbation, high stress, sandstone, sine wave
摘要：AbstractThree sandstone specimens common in rock engineering were selected to study the differences in the mechanical properties of rocks with different lithologies. The development and expansion of the internal cracks in the specimens were observed by combining the simulation system with the acoustic emission system. Through the combination of dynamic and static stresses, the deformation and d...
阅读全文 PDF 引用Fracturing behaviors of flawed granite induced by dynamic loadings: A study based on DIP and PFC
Xiao Wang, Wenbin Sun, Changdi He, Wei Yuan, Vahab Sarfarazi, Haozheng Wang
发布时间：2024-05-07
关键词：Fracturing behaviors of flawed granite induced by dynamic loadings A study based on DIP and PFC
摘要：AbstractThis study explored the dynamic behaviors and fracturing mechanisms of flawed granite under split-Hopkinson pressure bar testing, focusing on factors like grain size and flaw dimensions. By means of digital image processing and the discrete element method, Particle Flow Code 2D (PFC2D) models were constructed based on real granite samples, effectively overcoming the limitations of prior...
阅读全文 PDF 引用A comprehensive review of experimental studies on shear behavior of bolted rock joints with varying rock joint and bolt parameters and normal stress
Chang Zhou, Zhenwei Lang, Shun Huang, Qinghong Dong, Yanzhi Wang, Wenbo Zheng
发布时间：2024-05-06
关键词：bending angle, rock bolt, rock fracture, roughness, shear resistance
摘要：AbstractThe shear characteristics of bolted rock joints are crucial for the stability of tunneling and mining, particularly in deep underground engineering, where rock bolt materials are exposed to high stress, water pressure, and engineering disturbance. However, due to the complex interaction between bolted rock joints and various geological contexts, many challenges and unsolved problems ari...
阅读全文 PDF 引用A case study on the stability of a big underground powerhouse cavern cut by an interlayer shear zone in the China Baihetan hydropower plant
Lifang Zou, Guotao Meng, Jiayao Wu, Wei Fu, Weijiang Chu, Weiya Xu
发布时间：2024-04-30
关键词：A case study on the stability of a big underground powerhouse cavern cut by an interlayer shear zone in China Baihetan hydropower plant
摘要：AbstractThe big underground powerhouse cavern of the China Baihetan hydropower plant is 438 m long, 34 m wide, and 88.7 m high. It is cut by a weak interlayer shear zone and its high sidewall poses a huge stability problem. This paper reports our successful solution of this problem through numerical simulations and a replacement-tunnel scheme in the detailed design stage and close site monit...
阅读全文 PDF 引用Energy characteristics of saturated Jurassic sandstone in western China under different stress paths
Yi Yang, Jian Lin, Yun Wu, Shilong Peng, Wanhang Shao, Lining Yang
发布时间：2024-04-27
关键词：Energy characteristics of saturated Jurassic sandstone in western China under different stress paths
摘要：AbstractTo study the energy evolution and failure characteristics of saturated sandstone under unloading conditions, rock unloading tests under different stress paths were conducted. The energy evolution mechanism of the unloading failure of saturated sandstone was systematically explored from the perspectives of the stress path, the initial confining pressure, and the energy conversion rate. T...
阅读全文 PDF 引用A thermal stress loading technique for large-sized hot dry rock mechanical tests
Huiling Ci, Bing Bai, Hongwu Lei, Yan Zou, Jianfeng Liu
发布时间：2024-04-26
关键词：Deep rock engineering, high‐temperature and high‐stress conditions, hot dry rock, large‐sized modeltest, thermal stress loading
摘要：AbstractTesting of large-sized specimens is becoming increasingly important in deep underground rock mechanics and engineering. In traditional mechanical loading, stresses on large-sized specimens are achieved by large host frames and hydraulic pumps, which could lead to great investment. Low-cost testing machines clearly always have great appeal. In this study, a new approach is proposed using...
阅读全文 PDF 引用Deformation monitoring at shield tunnel joints: Laboratory test and discrete element simulation
Maoyi Mao, Xiaowei Yang, Chun Liu, Tao Zhao, Hui Liu
发布时间：2024-04-26
关键词：Deformation monitoring at shield tunnel joints Laboratory test and discrete element simulation
摘要：AbstractShield tunnel, composed of several segments, is widely used in urban underground engineering. When the tunnel is under load, relative displacement occurs between adjacent segments. In the past, distributed optical fiber sensing technology was used to perform strain monitoring, but there is an urgent need to determine how to transform strain into displacement. In this study, optical freq...
阅读全文 PDF 引用Performance evaluation of rock fragmentation prediction based on RF-BOA, AdaBoost-BOA, GBoost-BOA, and ERT-BOA hybrid models
Junjie Zhao, Diyuan Li, Jian Zhou, Danial J. Armaghani, Aohui Zhou
发布时间：2024-04-22
关键词：ayesian optimization, blasting, machine learning, rock fragmentation
摘要：AbstractRock fragmentation is an important indicator for assessing the quality of blasting operations. However, accurate prediction of rock fragmentation after blasting is challenging due to the complicated blasting parameters and rock properties. For this reason, optimized by the Bayesian optimization algorithm (BOA), four hybrid machine learning models, including random forest, adaptive boost...
阅读全文 PDF 引用Assessment for shallow and large tunnel construction in weak ground conditions: Application of tunnel boring machines
Servet Karahan, Candan Gokceoglu
发布时间：2024-04-17
关键词：face pressure, NATM, railway tunnel, TBM, weak ground
摘要：AbstractWith recent technological advancements, tunnel boring machines (TBM) have developed and exhibited high performance in large diameters and weak ground conditions. Tunnels are crucial structures that significantly influence the timelines of highway and railway projects. Therefore, the construction of tunnels with TBMs becomes a preferred option. In this study, a comparative analysis betwe...
阅读全文 PDF 引用Prediction of rock mass classification in tunnel boring machine tunneling using the principal component analysis (PCA)–gated recurrent unit (GRU) neural network
Ke Man, Liwen Wu, Xiaoli Liu, Zhifei Song, Kena Li, Nawnit Kumar
发布时间：2024-04-12
关键词：Prediction of rock mass classification in tunnel boring machine tunneling using the principal component analysis PCAgated recurrent unit GRU neural network
摘要：AbstractDue to the complexity of underground engineering geology, the tunnel boring machine (TBM) usually shows poor adaptability to the surrounding rock mass, leading to machine jamming and geological hazards. For the TBM project of Lanzhou Water Source Construction, this study proposed a neural network called PCA–GRU, which combines principal component analysis (PCA) with gated recurrent uni...
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- 1Frictional Stability of Longmaxi Shale Gouges and Implications for Deep Seismic Potential in the Southeastern Sichuan Basin 2Additive manufacturing technology in mining engineering research 3The theory of compression–shear coupled composite wavepropagation in rock 4High-performance computing of 3D blasting wave propagation in underground rock cavern by using 4D-LSM on TianHe-3 prototype E class supercomputer 5Mineralogy, microstructures and geomechanics of rock salt for underground gas storage 6Influence of cooling speed on the physical and mechanical properties of granite in geothermal-related engineering 7Grouting theories and technologies for the reinforcement of fractured rocks surrounding deep roadways 8Potential triggers for large earthquakes in open-pit mines: A case study from Kuzbass, Siberia 9A multiphysical-geochemical coupling model for caprock sealing efficiency in CO2 geosequestration 10Development of urban underground space in coastal cities in China: A review
- 1Frictional Stability of Longmaxi Shale Gouges and Implications for Deep Seismic Potential in the Southeastern Sichuan Basin 2Influence of cooling speed on the physical and mechanical properties of granite in geothermal-related engineering 3Grouting theories and technologies for the reinforcement of fractured rocks surrounding deep roadways 4Numerical simulation of zonal disintegration of surrounding rock in the deep-buried chamber 5Visualizing experimental investigation on gas–liquid replacements in a microcleat model using the reconstruction method 6A multiphysical-geochemical coupling model for caprock sealing efficiency in CO2 geosequestration 7Advancing deep underground research through integration of engineering and science 8Development of urban underground space in coastal cities in China: A review 9Stress wave propagation and incompatible deformation mechanisms in rock discontinuity interfaces in deep-buried tunnels 10Triaxial creep damage characteristics of sandstone under high crustal stress and its constitutive model for engineering application