-
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The role of temperature-enhanced fault closure in promoting postinjection pressure diffusion and seismicity in enhanced geothermal systems
Yinlin Ji, Yuedu Chen, 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Coupling effects of temperature, confining pressure, and pore pressure on permeability and average pore size of Longmaxi shale
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...
阅读全文 PDF 引用Shaking table test and cumulative deformation evaluation analysis of a tunnel across the hauling sliding surface
山区隧道工程:滑坡隐患的解决之道
Lifang Pai, Honggang Wu, Xu Wang
发布时间:2023-11-18
关键词:Shaking table test and cumulative deformation evaluation analysis of a tunnel across the hauling sliding surface
摘要:滑坡是山区隧道施工中最复杂的灾害之一。由于山区地形等条件的限制,隧道必须靠近或直接穿过易滑坡区,或者隧道穿过的边坡区以前经历过滑坡。在地震和隧道施工的干扰下,先前稳定或变形不明显的边坡会发生较大的变形,甚至发展成滑坡。隧道-滑坡相互作用问题日益突出,已成为地下工程研究的热点问题。本文从大量具有共同关系的工程案例中概化模型,并进行振动台试验,以获得研究的通用规则,这也使试验结果更具可扩展性。研究成果可为西部山区高烈度地震区交通隧道工程的建设提供重要的理论技术支撑。
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
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Excavation compensation theory and supplementary technology system for large deformation disasters
大变形灾害开挖补偿理论及其配套技术体系
Manchao He, Qiru Sui, Zhigang Tao
发布时间:2023-06-27
关键词:nergy engineering, excavation compensation, large deformation, NPR anchor cable, slopeengineering, traffic tunnel engineering
摘要:鉴于能源工程、交通隧道工程、边坡工程中大变形灾害治理的挑战,提出了大变形灾害的开挖补偿理论,并研发了其配套技术体系。基于 "隧(巷)道工程中的破坏都源于工程开挖 "的理念,本文从 “道”、“器”、“术”,以及大变形力学设计方法和工程应用五个方面总结介绍了开挖补偿理论的发展。首先,发展了补偿力的计算方法,完善了大变形灾害控制理论体系。其次,介绍了自主研发的具有高恒阻力、大变形、超吸能特性的负泊松比(NPR)锚杆/索,及其大变形灾害控制应用效果;智能隧道监测预警云平台系统和滑坡地质灾害牛顿力远程监测预警系统。再者,介绍了针对不同工程背景提出的双梯度超前注浆技术、二维爆破技术、牛顿力监测-预警-控制一体化技术。最后,介绍了该理论在能源工程、交通隧道工程、边坡工程等领域成功应用的典型案例。开挖补偿理论在大变形灾害控制中的效果得到了成功验证。
阅读全文 PDF 引用Visualizing experimental investigation on gas–liquid replacements in a microcleat model using the reconstruction method
Shaojie Chen, Jicheng Zhang, Dawei Yin, Faxin Li, Jialin Lu, Peiyang Zhu
发布时间:2023-05-31
关键词:dynamic contact angle,flow visualization, instantaneous velocity, microcleat, residual liquid
摘要:Highlights Geometric characterization and reconstruction of a three-dimensional transparent cleat model were performed. Gas–liquid repulsion characteristics were determined in a visualized microcleat model. Transient flow velocity hysteresis is evident in tortuous channels. Dynamic variation of the contact angle shows diversity. Pressure changes the groove liquid content and liquid film thickness.
阅读全文 PDF 引用Nonlinear anisotropic finite element analysis of liquefiable tunnel–sand–pile interaction under seismic excitation
Md. Foisal Haque
发布时间:2023-11-23
关键词:Nonlinear anisotropic finite element analysis of liquefiable tunnelsandpile interaction under seismic excitation
摘要:AbstractNonlinear time-history analysis can be used to determine the liquefiable behaviors of the tunnel–sand–pile interaction (TSPI) model with the consideration of sand anisotropy. This study presents the nonlinear response of the TSPI model with the existence of liquefaction under seismic excitation. The analysis reveals that tunnel and pile behave as isotropic elements, while sand shows i...
阅读全文 PDF 引用A research on excavation compensation theory for large deformation disaster control and a review on the multiphysical–multiscale responses of salt rock for underground gas storage
Jianguo Wang, Heping Xie, Chunfai Leung, Xiaozhao Li
发布时间:2023-05-31
关键词:A research on excavation compensation theory for large deformation disaster control and a review the multiphysicalmultiscale responses of salt rock underground gas storage
摘要:We highlight two articles in this issue: A research article titled “Excavation compensation theory and supplementary technology system for large deformation disasters” by Manchao He et al. and a review article titled “Mineralogy, microstructures and geomechanics of rock salt for underground gas storage” by Veerle Vandeginste et al.
阅读全文 PDF 引用Safety analysis of Sormeh underground mine to improve sublevel stoping stability
Mostafa Hosseini, Amin Azhari, Rahman Lotfi, Alireza Baghbanan
发布时间:2023-05-31
关键词:Safety analysis of Sormeh underground mine to improve sublevel stoping stability
摘要:Highlights The Taguchi method has been applied to study the influence of geometric parameters and stress on stope stability. The results show a full factorial analysis is more reliable as stope stability is a complex process. The squat pillar and Mathews method overestimates the impact of overburdened stress and stope height on rib pillar stability. In a high stope that is divided with several sill pillars, the Mathews method cannot accurately predict the sill pillar's impact on stope stability. For roof stability, sill pillar and stope span should be considered the most influential parameters, whereas W/H ratios should be assessed for hanging wall stability.
阅读全文 PDF 引用Mineralogy, microstructures and geomechanics of rock salt for underground gas storage
Veerle Vandeginste, Yukun Ji, Frank Buysschaert, George Anoyatis
发布时间:2023-05-31
关键词:creep, hydrogen, impurities, rock salt, salt solution mining, underground gas storage
摘要:Highlights Hydrogen may become indispensable in the transition to renewable energy Rock salt caverns may provide leak-proof containers for hydrogen storage Mineralogical composition links with depositional environment and diagenesis Microstructure links to cataclastic deformation, diffussive mass transfer and intracrystalline plastic deformation Geomechanical behavior of rock salt is influenced by its composition and impurities
阅读全文 PDF 引用A multiphysical-geochemical coupling model for caprock sealing efficiency in CO2 geosequestration
中国、澳大利亚和新加坡共同探秘多物理地球化学耦合模型下的二氧化碳地质封存
王建国, 王惠民,王小林, 杨圣奇, Hongtao Wu, Chunfai Leung, Jiali Tian
发布时间:2023-05-31
Editorial highlights
特邀综述|康红普院士团队DUSE开年巨献—深部巷道裂隙煤岩体注浆加固理论与技术
发布时间:2023-04-06
Grouting theories and technologies for the reinforcement of fractured rocks surrounding deep roadways
特邀综述|康红普院士团队DUSE开年巨献—深部巷道裂隙煤岩体注浆加固理论与技术
Hongpu Kang, Wenzhou Li, Fuqiang Gao, Jianwei Yang
发布时间:2023-02-21
关键词:deep roadways, development direction,field study, fractured rocks, grouting materials, groutingmethods, high‐pressure grouting
摘要:随着浅部资源日益匮乏,煤矿开采深度逐渐增加,安全问题日益突出,深部巷道裂隙煤岩体的注浆技术是深部资源安全开采的关键技术之一。中国工程院康红普院士团队的这篇文章,全面总结和分析了深部巷道裂隙煤岩体注浆加固技术的理论、设计、材料、工艺和设备等方面的研究成果。并结合口孜东煤矿掘进工作面注浆现场应用实例,总结了对注浆加固效果的评价方法。
阅读全文 PDF 引用The mechanism of inward and outward expansion of multiscale dynamic permeability of coalbed methane at different temperatures
Zhiqiang Li, Xiaoqiang Hao, Yanwei Liu, Lin Li
发布时间:2023-04-06
关键词:diffusion, dynamic, gas, permeability, seepage, temperature
摘要:AbstractThe multiscale micro-nano pores in coal can result in the ultra-low permeability of coal, which restricts the efficiency of gas extraction. It is difficult for the conventional seepage-enhancement measures to affect the nanoscale pores within the coal matrix. Thermal stimulation can reach deep into the micro-nano pores within coal matrix to improve the permeability. Therefore, it is imp...
阅读全文 PDF 引用Development of urban underground space in coastal cities in China: A review
青岛地质工程勘察院—中国滨海城市地下空间发展的三十年
Peng Yu, Honghua Liu, Zhongsheng Wang, Jiani Fu, Hui Zhang, Jia Wang, Qi Yang
发布时间:2023-03-15
Experimental study on 3D internal penny-shaped crack propagation in brittle materials under uniaxial compression
Jiyun Xu, Hanzhang Li, Haijun Wang, Lei Tang
发布时间:2023-04-06
关键词:3D‐ILC, brittle materials, internal crack, penny‐shaped crack, rock fracture, uniaxial compression
摘要:AbstractFractures are widely present in geomaterials of civil engineering and deep underground engineering. Given that geomaterials are usually brittle, the fractures can significantly affect the evaluation of underground engineering construction safety and the early warning of rock failure. However, the crack initiation and propagation in brittle materials under composite loading remain unknow...
阅读全文 PDF 引用Triaxial creep damage characteristics of sandstone under high crustal stress and its constitutive model for engineering application
Dongxu Chen, Laigui Wang, Pierre Darry Versaillot, Chuang Sun
发布时间:2023-03-15
关键词:Triaxial creep damage characteristics of sandstone under high crustal stress and its constitutive model for engineering application
摘要:AbstractThe creep characteristics of rock under high crustal stress are of important influence on the long-term stability of deep rock engineering. To study the creep characteristics and engineering application of sandstone under high crustal stress, this study constructed nonlinear creep damage (NCD) constitutive mode based on the triaxial graded loading‒unloading creep test of sandstone in t...
阅读全文 PDF 引用 -
Development of an optimization model for a monitoring point in tunnel stress deduction using a machine learning algorithm
Xuyan Tan, Weizhong Chen, Luyu Wang, Wei Ye
发布时间:2024-03-07
关键词:Development of an optimization model for a monitoring point in tunnel stress deduction using machine learning algorithm
摘要:HighlightsScientific guidance for monitoring scheme optimization is provided.The stress distribution of the overall section is characterized using limited numbers of monitoring points.Interdisciplinary application of machine learning helps in solving practical engineering problems.1 INTRODUCTIONAssessments of stress patterns in tunnel engineering are invaluable, as they directly impact the safe...
阅读全文 PDF 引用Study on creep deformation and energy development of underground surrounding rock under four-dimensional support
Zhanguo Ma, Junyu Sun, 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:The numerical simulation results indicate that the combined support mode of 4D roof supports and conventional side supports is highly applicable to the stability control of surrounding rock with a roadway depth exceeding 520 m. With the increase of roadway depth, 4D support can effectively restrain the area and depth of plastic deformation in the surrounding rock. Further, 4D support limits the accumulation range and rate of elastic strain energy as the creep deformation time increases. 4D support can effectively reduce the plastic deformation of roadway surrounding rock and maintain the stability for a long deformation period of 6 months. As confirmed by in situ monitoring results, 4D support is more effective for the long-term stability control of surrounding rock than conventional
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:2024-03-07
关键词:controlled source audio frequency magnetotelluric method (CSAMT), geothermal exploration,integrated geophysical technology, micromotion detection technology
摘要:geothermal geological model was established for the BinhaiCounty of Jiangsu Province in China and potential geothermal well locationswere identified. On this basis, a geothermal well was drilled nearly 3000 mdeep, with a daily water volume of over 2000 m3/day and a geothermal watertemperature of 51°C at the well head. It is found that predictions using the aboveintegrated geophysical exploration technology are in good agreement with thewell geological formation data. This integrated geophysical technology can beeffectively applied for geothermal exploration with high precision and reliability
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
Liangchao Huang, Yanli Fang, Zhengmeng Hou, Yachen Xie, Lin Wu, Jiashun Luo, Qichen Wang, Yilin Guo,
发布时间:2024-02-28
关键词:analytic hierarchy process (AHP), evaluation index, hydrogen storage, salt cavern, site selectio
摘要:Based on a detailed classification and analysis, a “four-factor” model for the site selection of salt cavern hydrogen storage is proposed, encompassing the dynamic demands of hydrogen energy, geological, hydrological, and ground factors of salt mines. Subsequently, 20 basic indicators for comprehensive suitability grading of the target site were screened using the analytic hierarchy process and expert survey methods were adopted, which provided a preliminary site selection system for salt cavern hydrogen storage. Ultimately, the developed system was applied for the evaluation of salt cavern hydrogen storage sites in the salt mines of Pingdingshan City, Henan Province, thereby confirming its rationality and effectiveness. This research provides a feasible method and theoretical basis for the site selection of UHS in salt caverns in China.
阅读全文 PDF 引用Experimental study on the influence of content and fineness of fly ash on the mechanical properties of grouting slurries
Hua Jiang, Handong Zhang, Xiaoyan Zhang, Jinxun Zhang, Yusheng Jiang
发布时间:2024-02-28
关键词:Experimental study on the influence of content and fineness fly ash mechanical properties grouting slurries
摘要:Abstract Excavation gaps around the front shield can be generated during shield construction, resulting in significant ground settlement. Traditional synchronous grouting slurries are unsuitable for filling these gaps during tunneling under existing subway lines. To address this issue, experiments are conducted on mix characteristics and hardening properties of slurries with variations in fineness and contents of fly ash.
阅读全文 PDF 引用A meso-damage-based constitutive model for yellow sandstone under dry–wet cycles
Zhe Qin, Runchang Zhang, Weizheng Mao, Jihuan Han, Zhiwen Li, Sunhao Zhang
发布时间:2024-02-26
关键词:constitutive model, damage coupling, dry–wet cycles, particleflow code, rock mechanics
摘要:in this study, meso-damage of a yellow sandstone is investigated and a meso-damage-based constitutive model for dry–wet cycles is proposed. First, computed tomography scanning and uniaxial compression tests were conducted on yellow sandstones under different dry–wet cycles. Second, the evolution of rock mesostructures and the damage mechanism subjected to dry–wet cycles were simulated using the discrete element method with Particle Flow Code in 2 Dimensions (PFC2D) software. Third, a constitutive model was proposed based on the meso-statistical theory and damage mechanics. Finally, this constitutive model was verified with the experimental results to check its prediction capability. It is found that the radius and number of pore throats in the sandstone increase gradually with the number of dry–wet cycles, and the pore structure connectivity is also improved.
阅读全文 PDF 引用Numerical study on local scour characteristics around submarine pipelines in the Yellow River Delta silty sandy soil under waves and currents
Peng Yu, Ruigeng Hu, Jike Zhang, Qi Yang, Jieru Zhao, Lei Cao, Chenghao Zhu
发布时间:2024-02-20
关键词:local scour, numerical simulation, submarine pipelines, Yellow River Delta
摘要:The results indicate that (1) local scour around submarine pipelines can be divided into three stages: rapid scour, slow scour, and stable scour. The maximum scour depth occurs directly below the pipeline, and the shape of the scour pits is asymmetric. (2) As the water depth decreases and the pipeline suspension height increases, the scour becomes more intense. (3) When currents go through a pipeline, a clear stagnation point is formed in front of the pipeline, and the flow velocity is positively correlated with the depth of scour. This study can provide a valuable reference for the protection of submarine pipelines in this area.
阅读全文 PDF 引用Effects of elevated ground temperatures on properties of cement grouts for deep rock grouting
Zhipeng Xu, Jianping Sun, Runguo Li, Lei He, Changwu Liu
发布时间:2024-02-05
关键词:Effects of elevated ground temperatures on properties cement grouts for deep rock grouting
摘要:This paper aims to experimentally gain insights into the effects of elevated ground temperatures on the properties of cement grout in fresh and hardened states in deep rock grouting. The results revealed that a temperature of 35°C is crucial for changes in the properties of thick cement grout with a water–cement ratio of less than 0.8. When the temperature is up to 35°C, there can be significant improvements in rheological parameters, acceleration of grout setting, and increase in the rheological time dependence of thick cement grout; however, there may also be a slight impact on the initial grout flowability and the nature of shear thinning.
阅读全文 PDF 引用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:2023-12-28
关键词:geothermal exploitation performance, geothermal reservoir, massflow rate, stressfield, well placement
摘要:The results indicate that the longer distance between wells can increase the outlet temperature of production wells and improve extraction efficiency in the short term. In contrast, the shorter distance between wells can reduce the heat exchange area and thus mitigate the impact on the reservoir stress. A larger mass flow rate is conducive to the production capacity enhancement of the geothermal system and, in turn causes a wider range of stress disturbance. These findings provide valuable insights into the optimization of geothermal energy extraction while considering reservoir safety and long-term sustainability. This study deepens the understanding of the THM coupling effects in geothermal systems and provides an efficient and environmentally friendly strategy for a geothermal energy system.
阅读全文 PDF 引用Physical and mechanical properties and microstructures of submarine soils in the Yellow Sea
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Development and application of novel high-efficiency composite ultrafine cement grouts for roadway in fractured surrounding rocks
Maolin Tian, Shaojie Chen, 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:1 INTRODUCTIONWith the increase of coal mining depth, both the stress and fracture condition of the surrounding rock increase. The deformation and the failure mechanism of roadway also become more complex under deep complex geo-stress. The high crustal stress and strong mine pressure can easily lead to the fracture of the roadway's surrounding rock (He, 2011; Li, Wang, et al., 2021; Li, Zhang, ...
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
张晋勋, 李博, Guihe Wang, Yusheng Jiang, Hua Jiang, Minglun Yin, Zhengyang Sun
发布时间:2023-11-15
Exploring the combination of biochar-amended soil and automated irrigation technology for water regulation and preservation in green infrastructure
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:1 INTRODUCTIONSoil water retention and permeability are essential properties for analyzing seepage and hence the stability of geotechnical engineering infrastructure. Various studies have promoted the use of biochar to enhance these properties. However, there is also a need to enhance the regulation of the water content in green infrastructure covers (i.e., landfill covers, slopes, etc.), which...
阅读全文 PDF 引用
- 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 5Influence of cooling speed on the physical and mechanical properties of granite in geothermal-related engineering 6Potential triggers for large earthquakes in open-pit mines: A case study from Kuzbass, Siberia 7Mineralogy, microstructures and geomechanics of rock salt for underground gas storage 8A multiphysical-geochemical coupling model for caprock sealing efficiency in CO2 geosequestration
- 1Advancing deep underground research through integration of engineering and science 2Influence of cooling speed on the physical and mechanical properties of granite in geothermal-related engineering 3Frictional Stability of Longmaxi Shale Gouges and Implications for Deep Seismic Potential in the Southeastern Sichuan Basin 4Exploring the frontiers of deep underground sciences and engineering—China Yunlong Lake Laboratory is striving to be the best 5The theory of compression–shear coupled composite wavepropagation in rock 6High-performance computing of 3D blasting wave propagation in underground rock cavern by using 4D-LSM on TianHe-3 prototype E class supercomputer