Results 21 to 30 of about 4,032 (249)

Computer Numerical Simulation of Sluice Structure on Deep Overburden Foundation [PDF]

open access: yesAdvances in Intelligent Systems Research, 2015
This paper adopts the space combination finite element method to calculate the whole displacement and stress of chamber structure and foundation, calculates the overall stability against sliding and anti-floating stability safety coefficient of the lock chamber structure via the rigid body limit equilibrium method, and simulates the excavation and ...
Xuanmao Peng, Weiping Hu, Xuan Wang
openaire   +1 more source

Coevolution mechanism and branch of pillar‐overburden fissures in shallow coal seam mining

open access: yesEnergy Science & Engineering, 2023
The large‐scale mining of coal resources promotes the formation of section coal pillar groups between working faces. The overlying strata are supported by coal pillars, which leads to the formation of a unique fracture‐bearing structure in the key ...
Jie Zhang   +6 more
doaj   +1 more source

The Effect of Overburden Depth on the Damage of Underground Structure during Earthquake

open access: yesIOP Conference Series: Earth and Environmental Science, 2020
Abstract Nowadays underground structures are essential components in urban areas and their number are increasing continuously. Generally, underground structures show a better performance during seismic actions than structures above ground.
Shrestha Rajyaswori   +4 more
openaire   +1 more source

STUDY OF OVERBURDEN TUFF ROCKS AND DEVELOPMENT ON ITS BASIS OF LIGHTWEIGHT STRUCTURAL CONCRETE [PDF]

open access: yesPeriódico Tchê Química, 2021
Introduction. The work presents the research results on the development of technology for lightweight structural concrete based on overburden tuff rocks. To develop the technology of lightweight structural concrete, overburden tuff rock (Almaty region of the Republic of Kazakhstan) is used, which is formed during the extraction of volcanic tuff for ...
Zhumadilova, Zhanar O.   +2 more
openaire   +1 more source

Analysis of Overburden Structure and Pressure‐Relief Effect of Hard Roof Blasting and Cutting [PDF]

open access: yesAdvances in Civil Engineering, 2019
When studying the pressure‐relief effect of hard roof blasting and cutting, the roof‐cutting position and angle obviously affect the stability of the rock surrounding the gob‐side entry (GSE). In this paper, control of the large deformation of rock surrounding the GSE is evaluated on the basis of the overlying structure and pressure‐relief principle ...
Hao Liu   +4 more
openaire   +2 more sources

Strata Movement and Mining-Induced Stress Identification for an Isolated Working Face Surrounded by Two Goafs

open access: yesEnergies, 2023
Solutions for the maintenance of safety in an isolated working face has not been well achieved; this is attributed to its unique overburden structure and the strong mining-induced stress during the advancement.
Yingyuan Wen   +5 more
doaj   +1 more source

Overburden-Induced Flattening Structure in the Himalaya: Mechanism and Implication

open access: yesCurrent Science, 2015
Small-scale structures in fold-thrust belt are mainly formed in response to the emplacement of thrust sheets. However, some small-scale structures may not be developed directly in response to the emplacement of thrust sheets, but might be genetically tied with the orogenic process.
BANERJEE, S, MATIN, A, MUKUL, M
openaire   +1 more source

Field Measurement and Study on Overburden Fracture and Surface Subsidence Law of Solid Filling Mining under Buildings

open access: yesShock and Vibration, 2021
In order to predict the surface subsidence scientifically in solid filling mining, it is necessary to establish a complete subsidence prediction model and parameter system according to the evolution law of overburden structure and strata movement ...
Zhiyong Fu   +4 more
doaj   +1 more source

A 3D modeling method of bending zone in overburden strata

open access: yesGong-kuang zidonghua, 2018
For problem that tri-prism model cannot accurately represent irregular stratum structure especially borehole deviation, a 3D modeling method of bending zone in overburden strata based on generalized tri-prism model was proposed.
SHI Xiaonan, JIN Qifeng, SHEN Xia
doaj   +1 more source

Responses of soil microbial activities to soil overburden thickness in restoring a coal gangue mound in an alpine mining area

open access: yesEcological Indicators, 2023
This study analyzes the changes in soil microbial community diversity after five years of restoration in an alpine mining area using different soil overburden thicknesses, in which MiSeq high-throughput sequencing technology was applied to analyze soil ...
Liqun Jin   +5 more
doaj   +1 more source

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