Gas migration at the granite–bentonite interface under semirigid boundary conditions in the context of high-level radioactive waste disposal
Jiangfeng Liu, Zhipeng Wang, Jingna Guo, Andrey Jivkov, Majid Sedighi, Jianfu Shao
发布时间：2025-09-18
关键词：Gas migration at the granitebentonite interface under semirigid boundary conditions in context of highlevel radioactive waste disposal
摘要：AbstractThe corrosion of waste canisters in the deep geological disposal facilities (GDFs) for high-level radioactive waste (HLRW) can generate gas, which escapes from the engineered barrier system through the interfaces between the bentonite buffer blocks and the host rock and those between the bentonite blocks. In this study, a series of water infiltration and gas breakthrough experiments wer...
阅读全文 PDF 引用In situ loading of a pore network model for quantitative characterization and visualization of gas seepage in coal rocks
Huazhe Jiao, Xi Chen, Tiegang Zhang, Quilligan Michael, Yixuan Yang, Xiaolin Yang, Tongyi Yang
发布时间：2025-09-18
关键词：In situ loading of a pore network model for quantitative characterization and visualization gas seepage in coal rocks
摘要：AbstractThe flow characteristics of coalbed methane (CBM) are influenced by the coal rock fracture network, which serves as the primary gas transport channel. This has a significant effect on the permeability performance of coal reservoirs. In any case, the traditional techniques of coal rock fracture observation are unable to precisely define the flow of CBM. In this study, coal samples were s...
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Tri-axial compressive behavior of high-water material for deep underground spaces
Honglin Liu, Yang Xia, Jianbiao Bai, Zhongzong Cao, Zizheng Zhang, Hongchao Zhao
发布时间：2025-09-18
关键词：Triaxial compressive behavior of highwater material for deep underground spaces
摘要：AbstractAttributed to its superior water-to-solid ratio and quick setting time, the high-water material is widely adopted in underground spaces as a cost-effective and environmentally friendly backfill material. To elucidate the bleeding mechanism of high-water material under the high confining pressure, a total of 57 tubular specimens were prepared and tested, critical parameters of which incl...
阅读全文 PDF 引用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...
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