Results 1 to 10 of about 3,287,769 (244)

Research on Rock Strength Test Based on Electro-Hydraulic Servo Point Load Instrument

Applied Sciences, 2022
A new electro-hydraulic servo point load instrument was designed to address the problem that the existing point load instrument cannot be loaded continuously and uniformly; different loading rates (using three loading rates: 0.1, 0.5, 1.0 kN/s) were ...
Xiaoxia Zhou, Lei Qiao, Faquan Wu, Zhaoyuan Wang, Yinhong Chen, Jie Wu   +5 more
doaj   +2 more sources

The use of point load test for Dubai weak calcareous sandstones

Journal of Rock Mechanics and Geotechnical Engineering, 2015
Intact rock is typically described according to its uniaxial compressive strength (UCS). The UCS is needed in the design of geotechnical engineering problems including stability of rock slopes and design of shallow and deep foundations resting on and/or ...
Amr Farouk Elhakim
doaj   +2 more sources

Estimation of the strength of Nubian sandstone formation from point load test index and other simple parameters

MATEC Web of Conferences, 2018
This study investigates the correlation of the uniaxial compressive strength (UCS) and the point load test (PLT) index Is(50), bulk density, water absorption and the RQD properties of the Sudanese Nubian sandstone formation.
Zein Abdul Karim M., Sandal Mutasim A.
doaj   +3 more sources

Development of empirical equations between uniaxial compressive strength and point load index: a case study for sandy dolomite

Scientific Reports
In this research, the Yuxi section of Central Yunnan Water Diversion Project in Southwest of China, including the tunnel and the traversed sandy dolomite along its route, was selected as the research area, and different sandification degrees ...
Meiqian Wang, Wenlian Liu, Haiming Liu, Wei Xu   +3 more
doaj   +2 more sources

Point Load Test of Half-Cylinder Core Using the Numerical Model and Laboratory Tests: Size Suggestion and Correlation with Cylinder Core

Advances in Civil Engineering, 2018
The point load test (PLT) is intended as an index test for rock strength classification or estimations of other strength parameters because it is economical and simple to conduct in the laboratory and in field tests.
Fengyu Ren, Huan Liu, Rongxing He, Guanghui Li, Yang Liu   +4 more
doaj   +2 more sources

Strength Assessment of Steel Fibre Reinforced Recycled Aggregate Concrete by Means of Correlation between Ultrasonic and Point Load Tests [PDF]

Journal of Rehabilitation in Civil Engineering, 2022
This paper aimed at assessing the in-situ strength of steel fibre reinforced concrete containing recycled coarse aggregate (RCA) using the correlation between ultrasonic and point load tests.
Hossein Razzaghi, Rahmat Madandoust, Hassan Aghabarati   +2 more
doaj   +1 more source

Study on static load test of modified and extended rigid frame bridge [PDF]

E3S Web of Conferences, 2021
In order to evaluate the mechanical condition and working performance of a rigid frame bridge after reconstruction and extension, the mechanical performance of the bridge was analyzed by static load test.
Yu-feng NING, Qing-cheng YANG, Wei-wei SUN, Shun-chao CHEN   +3 more
doaj   +1 more source

Determining the strength index of coal from the Brod - Gneotino deposit, Bitola [PDF]

Mining and Metallurgy Engineering Bor, 2018
The Point Load Test (PLT) was performed in the geomechanical laboratory of the MMI Bor, in order to determine the strength index of coal samples from the Brod - Gneotino, Bitola, Republic of Macedonia. On the basis of the obtained results, it is possible
Tašić Dušan, Ignjatović Dragan, Đurđevac-Ignjatović Lidija   +2 more
doaj   +1 more source

Tensile strength test of coal and rock with different coal structure

Gong-kuang zidonghua, 2021
Coal and rock, as a special sedimentary rock, mostly undergoes multiple phases of tectonic movements after its formation, resulting in the diversity of coal structures.
HUANG Kai,, WU Jiwen,, ZHAI Xiaorong,, BI Yaoshan   +3 more
doaj   +1 more source

Effect of layer number on bending behavior of 3D spacer composite plates produced with different methods

Firat University Journal of Experimental and Computational Engineering, 2022
In this study, the three-point bending behavior of laminated composite plates reinforced with three-dimensional (3D) spacer fabric was experimentally investigated.
Mustafa Gür, Mete Onur Kaman, Serkan Erdem   +2 more
doaj   +1 more source