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Geothermal energy for sustainable and green energy supply in the future
Chunfai Leung, Jianguo Wang, Heping Xie, Xiaozhao Li
发布时间：2024-09-25
关键词：Geothermal energy for sustainable and green supply in the future
摘要：Deep Underground Science and Engineering (DUSE) publishes this special issue on geothermal energy. The guest editors of this special issue are Prof. Ranjith Pathegama Gamage (Monash University, Australia), Prof. Zhongwei Huang (China University of Petroleum, Beijing, China), and Prof. Bing Bai (Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China). Geothermal energy i...
阅读全文 PDF 引用Geothermo-mechanical alterations due to heat energy extraction in enhanced geothermal systems: Overview and prospective directions
Mary C. Ngoma, Oladoyin Kolawole, Olufemi Olorode
发布时间：2024-09-27
关键词：Geothermomechanical alterations due to heat energy extraction in enhanced geothermal systems Overview and prospective directions
摘要：AbstractGeothermal energy from deep underground (or geological) formations, with or without its combination with carbon capture and storage (CCS), can be a key technology to mitigate anthropogenic greenhouse gas emissions and meet the 2050 net-zero carbon emission target. Geothermal resources in low-permeability and medium- and high-temperature reservoirs in sedimentary sequence require hydraul...
阅读全文 PDF 引用Applications of artificial intelligence in geothermal resource exploration: A review
Mahmoud AlGaiar, Mamdud Hossain, Andrei Petrovski, Aref Lashin, Nadimul Faisal
发布时间：2024-09-27
关键词：Applications of artificial intelligence in geothermal resource exploration A review
摘要：AbstractArtificial intelligence (AI) has become increasingly important in geothermal exploration, significantly improving the efficiency of resource identification. This review examines current AI applications, focusing on the algorithms used, the challenges addressed, and the opportunities created. In addition, the review highlights the growth of machine learning applications in geothermal exp...
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A state-of-the-art review on geothermal energy exploration in Morocco: Current status and prospects
Redouane Meryem, Khalis Hind, Haissen Faouziya, Sadki Othman, Berkat N. Eddine, Raji Mohammed
发布时间：2024-09-27
关键词：A stateoftheart review on geothermal energy exploration in Morocco Current status and prospects
摘要：AbstractIn the last few decades, addressing the global challenge of implementation of strategies for renewable energy and energy efficiency has become crucial. Morocco, since 2009, has made a steadfast commitment to sustainability, with a particular focus on advancing the development of renewable energy resources. A comprehensive strategy has been formulated, centering on utilizing the country'...
阅读全文 PDF 引用Development status and research recommendations for thermal extraction technology in deep hot dry rock reservoirs
Diquan Li, Ning Li, Jing Jia, Hongguang Yu, Qinghu Fan, Lichang Wang, Ahmed Mohsen
发布时间：2024-03-19
关键词：enhanced geothermal system, hot dry rock reservoir, thermoelastic stress, thermo‐hydro‐mechanicalcoupling
摘要：this article delves into a detailed discussion on the influence of fracture spacing, fracture permeability, fracture length, fluid injection rate, and injected fluid temperature on the performance of the EGS. In light of the thermo-hydro-mechanical coupling challenges associated with high-temperature reservoirs, it is suggested that future research efforts should focus on investigating the impact of thermo-induced stresses on the stability of the artificial fracture network within the EGS during long-term (>30 years) circulation of hot and cold fluids.
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Application of integrated geophysical techniques in geothermal exploration in Binhai County, Jiangsu Province
Juncheng Wang, Shiyin Gao, Jianguo Wang, Lin Li, Xiaoyan Gong, Jinbao Su
发布时间：2024-09-27
关键词：Application of integrated geophysical techniques in geothermal exploration Binhai County Jiangsu Province
摘要：AbstractIntegrated geophysical technology is a necessary and effective means for geothermal exploration. However, integration of geophysical technology for large-scale surveys with those for geothermal reservoir localization is still in development. This study used the controlled source audio-frequency magnetotelluric method technology for large-scale exploration to obtain underground electrica...
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Impact of well placement and flow rate on production efficiency and stress field in the fractured geothermal reservoirs
Xinghui Wu, Meifeng Cai, Xu Wu, Ketong Zhang, Ziqing Yin, Yu Zhu
发布时间：2024-09-27
关键词：Impact of well placement and flow rate on production efficiency stress field in the fractured geothermal reservoirs
摘要：AbstractGeothermal energy has gained wide attention as a renewable alternative for mitigating greenhouse gas emissions. The advancements in enhanced geothermal system technology have enabled the exploitation of previously inaccessible geothermal resources. However, the extraction of geothermal energy from deep reservoirs poses many challenges due to high-temperature and high-geostress condition...
阅读全文 PDF 引用Fluid-rock interaction experiments with andesite at 100°C for potential carbon storage in geothermal reservoirs
Grace E. Belshaw, Elisabeth Steer, Yukun Ji, Herwin Azis, Benyamin Sapiie, Bagus Muljadi, Veerle Van
发布时间：2024-09-27
关键词：100 Fluidrock interaction experiments with andesite at C for potential carbon storage in geothermal reservoirs
摘要：AbstractGeothermal energy extraction often results in the release of naturally occurring carbon dioxide (CO2) as a byproduct. Research on carbon storage using volcanic rock types other than basalt under both acidic and elevated temperature conditions has been limited so far. Our study uses batch reactor experiments at 100°C to investigate the dissolution of andesite rock samples obtained from a...
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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
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
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
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
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...
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An analytical solution of direction evolution of crack growth during progressive failure in brittle rocks
Xiaozhao Li, Lianjie Li, Fayuan Yan, Chengzhi Qi, Mikhail A. Guzev, Evgenii V. Kozhevnikov, Artem A.
发布时间：2024-09-30
关键词：An analytical solution of direction evolution crack growth during progressive failure in brittle rocks
摘要：AbstractMicrocrack growth during progressive compressive failure in brittle rocks strongly influences the safety of deep underground engineering. The external shear stress τxy on brittle rocks greatly affects microcrack growth and progressive failure. However, the theoretical mechanism of the growth direction evolution of the newly generated wing crack during progressive failure has rarely bee...
阅读全文 PDF 引用The influence of the disturbing effect of roadways through faults on the faults' stability and slip characteristics
Shuaifeng Lu, Andrew Chan, Xiaolin Wang, Shanyong Wang, Zhijun Wan, Jingyi Cheng
发布时间：2024-09-30
关键词：The influence of the disturbing effect roadways through faults on stability and slip characteristics
摘要：AbstractIn order to mitigate the risk of geological disasters induced by fault activation when roadways intersect reverse faults in coal mining, this paper uses a combination of mechanical models with PFC2D software. A mechanical model is introduced to represent various fault angles, followed by a series of PFC2D loading and unloading tests to validate the model and investigate fault instabilit...
阅读全文 PDF 引用A comprehensive study on in situ stress field characteristics and changes in rock mechanical properties in deep mines in northeastern Yunnan, China
Hui Wang, Bangtao Sun, Cong Cao, Shibo Yu, He Wang, Ye Yuan, Hua Zhong
发布时间：2024-09-30
关键词：A comprehensive study on in situ stress field characteristics and changes rock mechanical properties deep mines northeastern Yunnan China
摘要：AbstractThe Maoping lead–zinc mining area is a significant metal mine site in northeastern Yunnan. In this study, both hydraulic fracturing in situ stress testing and ultrasonic imaging logging were first carried out in the mining area. Second, 930 focal mechanism solutions and 231 sets of stress data near the mining area were collected. Then, the variations in the type of in situ stress field...
阅读全文 PDF 引用Seismic performance of concrete tunnel–sand–pile interaction by the shake table test
Md. Foisal Haque, Mehedi A. Ansary
发布时间：2024-09-30
关键词：Seismic performance of concrete tunnelsandpile interaction by the shake table test
摘要：AbstractThis research presents the square root sum of squares response of displacements and tunnel moments under the Kobe and Loma Prieta seismic excitations with a peak ground acceleration of 0.05 g for various dry relative densities of local sand in Bangladesh. For this reason, a one-dimensional gravitational shake table test was performed after calibration to determine the seismic performan...
阅读全文 PDF 引用A review of mechanical deformation and seepage mechanism of rock with filled joints
Lei Yue, Wei Li, Yu Liu, Shuncai Li, Jintao Wang
发布时间：2024-09-30
关键词：A review of mechanical deformation and seepage mechanism rock with filled joints
摘要：AbstractVarious defects exist in natural rock masses, with filled joints being a vital factor complicating both the mechanical characteristics and seepage mechanisms of the rock mass. Filled jointed rocks usually show mechanical properties that are weaker than those of intact rocks but stronger than those of rocks with fractures. The shape of the rock, filling material, prefabricated fissure ge...
阅读全文 PDF 引用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...
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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