Results 91 to 100 of about 226,308 (321)

Failure characteristics and the energy criterion of rock with a through‐going joint under true‐triaxial unloading conditions: Insights from the DEM model

Deep Underground Science and Engineering, EarlyView.
The rock failure mode is significantly influenced by the contributing factors, such as the joint inclination, the initial confining pressure, and the unloading point. We found six typical rock failure modes after a large number of numerical tests. Abstract Excavation unloading damages rock masses, with preferential failure along geological defects in ...
Fei Liu, Changhui Liang, Sijia Liu, Yongjun Zhang, Luo Wang   +4 more
wiley   +1 more source

EVALUATION OF SHEAR STRENGTH OF COMPACTED IRON ORE TAILINGS TREATED LATERITIC SOIL

Platform, a Journal of Engineering, 2020
This paper presents the results of a laboratory study on the evaluation of the shear strength of compacted iron ore tailings (IOT) treated lateritic soil. Lateritic soil used was treated with 0 up to 16% IOT by weight of dry soil.
Kazeem Ishola , T. S. Ijimdiya , P. Yohanna, K. J. Osinubi   +3 more
doaj  

Sleeper end resistance of ballasted railway tracks [PDF]

, 2014
This paper describes model tests used to investigate how ballast shoulder width and height contribute to a railway sleeper’s resistance to lateral movement for a range of shoulder widths and heights.
Bhandari, A.R., Le Pen, L., Powrie, W.
core   +1 more source

Gels for CO2 geo‐storage and conformance control: A systemic review of behavior and performance

Deep Underground Science and Engineering, EarlyView.
This review provides a systemic evaluation of potential sealants used in CO2 subsurface storage practices. Critical analyses of how external factors like CO2, pH, brine salinity and hardness, rock mineralogy, pressure, temperature, and injectivity could affect the performance of different sealants are provided. Abstract Carbon capture and storage (CCS)
Funsho Afolabi, Iskandar Dzulkarnain, Sunil Kwon, Dmitriy A. Martyushev, Jang H. Lee, Shiferaw R. Jufar, Fahd Al‐Akbari   +6 more
wiley   +1 more source

The Shape and Figure Rotation of NGC 2915's Dark Halo [PDF]

, 1999
NGC 2915 is a blue compact dwarf galaxy with a very extended HI disk showing a short central bar and extended spiral arms, both reaching far beyond the optical component.
Aoki S., Athanassoula E., Athanassoula E., Athanassoula E., Athanassoula E., Becquaert J.-F., Begeman K. G., Binney J. J., Binney J. J., Broeils A. H., Combes F., Combes F., Contopoulos G., D. W. Pfitzner, G. R. Meurer, Gerin M., Goldreich P., K. C. Freeman, Lequeux J., Lindblad P. A. B., Lindblad P. A. B., M. Bureau, Merrifield M. R., Meurer G. R., Noguchi M., Petrou M., Pfenniger D., Pfenniger D., Sancisi R., Schmidt K.-H., Schwarz M. P., Seiger M. S., Sellwood J. A., Sellwood J. A., Sellwood J. A., Sparke L. S., Sparke L. S., Sygnet J. F., Teuben P. J., Tully R. B., Weinberg M. D., Wilson T. L.   +41 more
core   +2 more sources

A review on rockburst prediction and prevention to shape an ontology‐based framework for better decision‐making for underground excavations

Deep Underground Science and Engineering, EarlyView.
A scientometric analysis of 2449 journal articles and a comprehensive review of 336 papers were conducted, discussing and identifying challenges and research gaps in rockburst prediction and prevention and proposing an ontology‐based framework for better decision‐making in underground excavations. Abstract With underground engineering projects becoming
Hongchuan Yan, Haijiang Li, Hongqiang Xie, Mingli Xiao, Jianliang Pei, Huaizhong Liu, Jiangda He   +6 more
wiley   +1 more source

Permeability evolution during progressive development of deformation bands in porous sandstones [PDF]

, 2003
[1] Triaxial deformation experiments were carried out on large (0.1 m) diameter cores of a porous sandstone in order to investigate the evolution of bulk sample permeability as a function of axial strain and effective confining pressure.
Antonellini, Antonellini, Aydin, Aydin, B. T. Ngwenya, Beach, Bruno, Caine, Crawford, Evans, Fowles, Gibson, Grueschow, Hippler, I. G. Main, Jamison, Knipe, Knipe, Knott, Main, Main, Main, Mair, Mair, Manzocchi, Menendez, Moore, Ngwenya, Ngwenya, Ngwenya, O. Kwon, Ogilvie, Popp, Ramsay, Rhett, Rojstaczer, Rudnicki, S. C. Elphick, Scholz, Scott, Shipton, Sibson, Sverdrup, Taylor, Tuefel, Underhill, Wong, Zang, Zhang, Zhu, Zhu, Zoback   +51 more
core   +2 more sources

Tri‐axial compressive behavior of high‐water material for deep underground spaces

Deep Underground Science and Engineering, EarlyView.
The relationship between the mechanical behavior and microstructures of the laterally confined high‐water material associated with water bleeding was established. Abstract Attributed 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 ...
Honglin Liu, Yang Xia, Jianbiao Bai, Zhongzong Cao, Zizheng Zhang, Hongchao Zhao   +5 more
wiley   +1 more source

Experimental analysis of cement-treated red sandstone coarse-grained soil and its microstructural evolution

Case Studies in Construction Materials, 2022
This study purposes to quantify comprehensively the potential of cement-treated red sandstone coarse-grained soil as a subgrade filler in highway engineering.
Jue Li, Junfeng Qian, Chengjun He
doaj  

Triaxial virtual shear test of coarse aggregate based on PFC3D

IOP Conference Series: Materials Science and Engineering, 2019
Coarse aggregate has a profound effect on the performance of asphalt mixture. Considering that it is difficult to study the migration and evolution of coarse aggregate in the process of compaction in laboratory tests, this paper investigated the mechanical properties of the aggregate through triaxial virtual tests based on the static pressure molding ...
Zhenwei Peng, Weidong Liu, Weidong Liu, Xing Gong   +3 more
openaire   +2 more sources