Results 51 to 60 of about 29,426 (152)

AI-assisted reliability-based design framework for tunnel concrete linings in weak rocks

Scientific Reports
Reliability-based design (RBD) of tunnel concrete linings in weak rocks is challenging due to the uncertainty of geomechanical parameters and the ground–support interaction.
Jafar Khani, Hamid Reza Nejati, Kamran Goshtasbi, Sina Rostamabadi, Arsalan Mahmoodzadeh   +4 more
doaj   +1 more source

Infrared thermography reveals weathering hotspots at the Požáry field laboratory

Scientific Reports
Evaluating physical properties and mechanical parameters of rock slopes and their spatial variability is challenging, particularly at locations inaccessible for fieldwork.
Marco Loche, Ondřej Racek, Matěj Petružálek, Gianvito Scaringi, Jan Blahůt   +4 more
doaj   +1 more source

THE CONSISTENCY CONDITIONS FOR DENSITY LIMITS OF HYPOPLASTIC CONSTITUTIVE LAW

TASK Quarterly, 2000
The so called phase diagram of grain skeletons illustrates the range of possible void ratios between the pressure dependent bounds ei and et. It can be shown that in the framework of the actual hypoplastic model these bounds can be surpassed by ...
ANDRZEJ NIEMUNIS, KONRAD NUBEL, CHRISTIAN KARCHER   +2 more
doaj  

An innovative method to assess specific charge, drilling and blasting costs considering critical factors of rock mass properties, fragment size and blasthole parameters

Results in Engineering
The specific charge has been given as a function of the blastability index (BI) only in previous research, whereas fragment size is one of the attractive blasting results. The impacts of combination of the important factors such as fragment size, in-situ
Hassan Moomivand, Sina Nayebi, Hussammodin Moomivand, Hamid Masoumzad   +3 more
doaj   +1 more source

Structural Design of Segmented Linings for High-Pressure CAES in Underground Workings: Method and Case Study

Applied Sciences
This study aims to ensure that the maximum crack width of underground working linings for compressed air energy storage (CAES) meets the allowable limit under high internal pressure conditions.
Sheng Wang, Mengfan Gao, Caichu Xia
doaj   +1 more source

Snow avalanche hazard of the Krkonoše National Park, Czech Republic

Journal of Maps, 2017
This paper presents a snow avalanche hazard map of the most avalanche-prone mountain range in the Czech Republic, the Krkonoše Mountains. The map was prepared using historical records of 1132 avalanches which occurred over the last 54 years and state-of ...
Jan Blahut, Jan Klimeš, Jan Balek, Petr Hájek, Lucie Červená, Jakub Lysák   +5 more
doaj   +1 more source

Investigating the fatigue performance of Nano-Silica-modified concrete with various admixtures: An experimental study

Results in Engineering
Understanding the fatigue behavior of concrete structures under cyclic loading is crucial for enhancing their durability and performance in demanding applications.
Sajjad Shokouh, Kamran Goshtasbi, Hamid Reza Nejati, Javad Karimi, Arsham Moayedi Far   +4 more
doaj   +1 more source

Rock Mechanics

Geotecnia, 1971
The advent and evolution of roc mechanics as independent subjects are briefly described as well as its affinities with other subjects. The reasons for the rapid growth of this new branch of mechanics are stated, and some typical instances of its numerous applications in the field of engineering and geosciences are given.  The paper ends with the ...
openaire   +1 more source

A photogrammetric approach for quantifying the evolution of rock joint void geometry under varying contact states

International Journal of Mining Science and Technology
Accurate measurement of the evolution of rock joint void geometry is essential for comprehending the distribution characteristics of asperities responsible for shear and seepage behaviors.
Rui Yong, Changshuo Wang, Nick Barton, Shigui Du   +3 more
doaj   +1 more source

Study on macro-and mesoscopic damage characteristics of fractured sandstoneunder cyclic loading and unloading with variable upper limit

Meitan kexue jishu
: In order to study the macro and micro damage characteristics of fractured rock mass under cyclic load, cyclic loading and unloading tests with variable upper limit were carried out to analyze the mechanical properties and macro failure characteristics ...
Guangjian LIU, Hao ZHOU, Zonglong MU, Kangyu WANG, Weiqi QIU, Xi CHEN, Zhicheng WANG   +6 more
doaj   +1 more source