Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Qinxin Hu"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract Rock burst disaster is still one of the most serious dynamic disasters in coal mining, seriously restricting the safety of coal mining. The b value is the main parameter for monitoring rock burst, and by analyzing its changing characteristic
Externí odkaz:
https://doaj.org/article/d71a00238bbc4d4993475e0feec146ad
Publikováno v:
Heliyon, Vol 10, Iss 9, Pp e30663- (2024)
While tunnel boring machines (TBMs) tunneling in clayey strata, the adhered excavated soil on the cutterhead and cutting tools tends to form mudcake after compaction and consolidation. Mudcake can obstruct the cutterhead openings and rendering the cu
Externí odkaz:
https://doaj.org/article/278bb637077f40d486d23b4bf8e76155
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
When the opening rate of the cutter head of tunnel boring machines is insufficient for the removal of excavated soil in a timely manner, the soil tends to accumulate in front of the cutter head and inside the earth or slurry chamber, leading to mud c
Externí odkaz:
https://doaj.org/article/b85a109c997748768dcae504b916cdd5
Publikováno v:
Canadian Geotechnical Journal. 59:1061-1070
During earth pressure balance (EPB) shield tunnelling in sandy ground, not only foam but also other conditioning agents need to be injected to reduce the permeability of muck and avoid water spewing out of the screw conveyor. Permeability tests were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d922dcbe94a545536978fc74a4a52460
https://doi.org/10.1139/cgj-2021-0196
https://doi.org/10.1139/cgj-2021-0196
Permeability stability calculation model of foam‐conditioned soil based on the permeability constant
Publikováno v:
International Journal for Numerical and Analytical Methods in Geomechanics. 45:540-559
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::284128cb3f2e5a3bbc182daaba2df522
https://doi.org/10.1002/nag.3166
https://doi.org/10.1002/nag.3166
Publikováno v:
KSCE Journal of Civil Engineering. 23:4538-4552
A computational scheme coupling PFC3D (Particle Flow Code in 3 Dimensions) and FLAC3D (Fast Lagrangian Analysis of Continua in 3 Dimensions) was performed to investigate influences of sand conditioning on the tunneling behaviour of earth pressure bal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84c4b26b4473c3988c27f81ef1c3d3d6
https://doi.org/10.1007/s12205-019-0473-8
https://doi.org/10.1007/s12205-019-0473-8
Publikováno v:
Journal of Performance of Constructed Facilities. 33
This study investigated earth pressure balance (EPB) shield tunneling–induced responses in terms of muck pressure, machine parameters, and surface settlements using an efficient numerical s...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddd3062b7d07887f8e3b8f85a4dbe355
https://doi.org/10.1061/(asce)cf.1943-5509.0001300
https://doi.org/10.1061/(asce)cf.1943-5509.0001300
Publikováno v:
Journal of Testing & Evaluation; Sep2021, Vol. 49 Issue 5, p1-17, 17p
Publikováno v:
Tunnelling and Underground Space Technology. 99:103377
Low permeable soil is important for stabilising the tunnel face during mechanized tunnelling in sandy soils under water level. Foam is one of the most common conditioning agents to achieve low permeability of the excavated soil. This study investigat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9553fdf5998de429db0078867e9a60c7
https://doi.org/10.1016/j.tust.2020.103377
https://doi.org/10.1016/j.tust.2020.103377
Publikováno v:
Journal of Testing and Evaluation. 49:20190539
Investigating the permeability characteristics of sand-foam mixtures in different conditioning states is important not only in earth pressure balance (EPB) shield tunneling and standstill but also for posttunneling soil handling. Slump and permeabili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff818480875f26f7911b278e511fff07
https://doi.org/10.1520/jte20190539
https://doi.org/10.1520/jte20190539