Results 11 to 20 of about 22,157 (282)

Computer Vision Observation for Progressive Failure Characteristics of a Moderately Weathered Red Mudstone Foundation: Design and Experiment

open access: yesBuildings, 2023
The bearing stratum of high-rise and ultra-high-rise buildings in southwest China has inevitably faced moderately weathered red mudstone. It was a waste of the potential bearing stratum calculated according to the specification, as the bearing stratum ...
Yu Bai   +5 more
doaj   +1 more source

Karst landslides detection and monitoring with multiple SAR data and multi-dimensional SBAS technique in Shuicheng, Guizhou, China

open access: yesFrontiers in Earth Science, 2023
Shuicheng District is a karst mountain area, located in Guizhou Province, China. Its fragile stratum and frequent underground mining activities makes it prone to landslides.
Rongrong Sun   +5 more
doaj   +1 more source

Analysis of the Coal Fluidization Mining Process with the Continuous-Discontinuous Coupled Particle-Block Method

open access: yesGeofluids, 2022
In situ fluidization mining is a promising method which shows considerable potential for reducing the ecological influence impacts of coal mining. During fluidization mining, coal gangue will be separated from the ores, filled back, and returned to the ...
Jing Li   +3 more
doaj   +1 more source

Isomonodromic deformations along a stratum of the coalescence locus

open access: yesJournal of Physics A: Mathematical and Theoretical, 2022
Abstract We consider deformations of a differential system with Poincaré rank 1 at infinity and Fuchsian singularity at zero along a stratum of a coalescence locus. We give necessary and sufficient conditions for the deformation to be strongly isomonodromic, both as an explicit Pfaffian system (integrable ...
openaire   +4 more sources

Strong Ground Pressure Mechanism and Control at the Longwall Top Coal Caving with a Single Key Stratum in Goaf

open access: yesShock and Vibration, 2020
A strong ground pressure in the multiseam environment manifested by rib spalling and roadway deformation at the fully mechanized working face was assessed by a comprehensive combination of field measurements, physical simulations, and theoretical ...
Ke Yang   +4 more
doaj   +1 more source

Stratification of moduli spaces of Lie algebras, similar matrices and bilinear forms [PDF]

open access: yes, 2018
In this paper, the authors apply a stratification of moduli spaces of complex Lie algebras to analyzing the moduli spaces of nxn matrices under scalar similarity and bilinear forms under the cogredient action.
Fialowski, A., Penkava, M.
core   +1 more source

Parameter Determination Method in Analysis of Stratum Deformation Caused by Tunnel Excavation

open access: yesAdvances in Civil Engineering, 2023
Based on the analytical method of formation deformation caused by tunnel excavation proposed by Verruijt and Sagaseta, combined with the basic principles of soil mechanics and elastic mechanics, a method for determining the pending parameters required in the analysis process is proposed.
Xinlong Li   +5 more
openaire   +2 more sources

Deformation and Control of Super-Large-Diameter Shield in the Upper-Soft and Lower-Hard Ground Crossing the Embankment

open access: yesApplied Sciences, 2022
Compared with the small diameter and the single stratum shield tunnel, the surface subsidence is much greater when the large-diameter shield passes through the upper-soft and lower-hard stratum.
Shuang You, Jianan Sun
doaj   +1 more source

Operads, configuration spaces and quantization [PDF]

open access: yes, 2011
We review several well-known operads of compactified configuration spaces and construct several new such operads, C, in the category of smooth manifolds with corners whose complexes of fundamental chains give us (i) the 2-coloured operad of A-infinity ...
Merkulov, S. A.
core   +3 more sources

Investigation of Deformation Pattern and Movement Law of the Huge-Thick Conglomerate Stratum by a Large-Scale 3D Model Test with Distributed Optical Fiber Sensor Monitoring

open access: yesSensors, 2021
Mining activities under the circumstances of huge-thick stratum occurrence commonly result in dynamic response of the working face. It is crucial to understand the rock failure and movement of the huge-thick stratum in order to prevent dynamic hazards ...
Qiang Yuan   +4 more
doaj   +1 more source

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