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

