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