Results 11 to 20 of about 2,759,873 (338)

Mechanical behavior of coal under true triaxial loading test connecting the effect of excavation- and mining-induced disturbances

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources, 2023
A uniaxial stress monitoring method is proposed to catch the field abutment pressure. A stress model of coal considering mining and excavation disturbance is proposed.
Mingzhong Gao   +7 more
semanticscholar   +1 more source

Analysis of properties and estimation of optimum blending ratio of blended mahua biodiesel

open access: yesEngineering Science and Technology, an International Journal, 2017
The mahua (Madhuca indica) is a non edible oil tree abundantly found in India. The kernel of mahua fruit contains 35–40% of oil which can be a good source of biodiesel.
N. Acharya   +3 more
doaj   +1 more source

Case Study on Safety Assessment of Rockfall and Splash Stone Protective Structures for Secondary Excavation of Highway Slope

open access: yesAdvances in Civil Engineering, 2021
Rockfall occurs on the excavation of the slope of highway resulting from excavated rock pieces. In order to solve the problem of rockfall protection during the disturbance of high slope secondary excavation, rockfall analysis program RocFall was used to ...
Guan Jiang   +6 more
doaj   +1 more source

DEM simulation of soil-tool interaction under extraterrestrial environmental effects [PDF]

open access: yes, 2017
In contrast to terrestrial environment, the harsh lunar environment conditions include lower gravity acceleration, ultra-high vacuum and high (low) temperature in the daytime (night-time).
Arroyo Alvarez de Toledo, Marcos   +3 more
core   +2 more sources

Analysis for bearing performance and construction mechanical behavior of supporting structure for the large cross-section tunnel by half bench CD method.

open access: yesPLoS ONE, 2021
Based on the engineering practice of large cross-section highway tunnel, this paper reveals the space-time coordinated evolution law of the construction mechanical characteristics and deformation distribution of the support structure in the construction ...
Rui Zhao
doaj   +1 more source

To improve the contact adaptability of mechanical roof support [PDF]

open access: yesE3S Web of Conferences, 2021
The article proposes a constructive technical solution to increase the contact adaptivity of the mechanical roof support. The developed solution of the mechanized support section is able to adapt to changing mining and geological conditions in the ...
Babyr N., Babyr K.
doaj   +1 more source

Implementation of probabilistic approach to rock mass strength estimation while excavating through fault zones [PDF]

open access: yes, 2019
Purpose. The paper addresses the rock mass state estimation while excavating a cross-heading through the area of regional fault “Bohdanivskyi” based on probabilistic approach to assessing the rock strength. Methods.
Babets, D   +4 more
core   +1 more source

A comparative study of stability characteristics of mahua and jatropha biodiesel and their blends

open access: yesJournal of King Saud University: Engineering Sciences, 2019
Now-a-days biodiesel is gaining attention for its positive impact on the environment. The vegetable oils are major sources of biodiesel. For biodiesel programme in India, jatropha (Jatropha curas) has been identified as one of the most suitable tree ...
N. Acharya   +3 more
doaj   +1 more source

Mechanical behaviors and damage characteristics of excavated jointed rocks within 3D printed structures

open access: yesJournal of Materials Research and Technology, 2023
The presence of structural planes in rock masses reduces their mechanical properties and greatly affects their failure mode, resulting in physical and mechanical anisotropy.
Haihua Zhu   +5 more
doaj   +1 more source

Prevention of Oil Spills During Excavation Work Using Electromagnetic Sensors [PDF]

open access: yesE3S Web of Conferences, 2021
This paper presents an analysis of solution to the problems associated with mechanical damage to pipelines. A method of preventing accidental oil spills during excavation using electromagnetic sensors is proposed.
Rybin A.S.   +3 more
doaj   +1 more source

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