scholarly journals ESTIMATION OF MOHR-COULOMB STRENGTH PARAMETERS BY USING PLATE LOADING AND BOREHOLE LOADING TESTS

2006 ◽  
Vol 62 (1) ◽  
pp. 215-226
Author(s):  
Katsuhiko ARAI ◽  
Shinichiro TSUJI
1989 ◽  
Vol 26 (1) ◽  
pp. 22-33 ◽  
Author(s):  
K. Y. Lo ◽  
B. H. Cooke

The construction of the Skydome Stadium will provide Toronto with the first multipurpose stadium in the world with a retractable roof. The foundation for the structure, with a diameter of about 210 m and a height of about 86 m, will be supported by several hundred columns, about 100 of which will have loadings up to 50 000 kN. The foundation rock is a shale with numerous highly weathered zones and clay seams. Laboratory tests to investigate the strength and deformation properties of these weak layers were performed. Field plate loading tests at two locations with three different size plates were also carried out to study the size effect on the mass modulus of the rock. This paper presents the results of detailed geological mapping and field and laboratory tests together with design considerations for the foundations. The field acceptance criteria, developed to ensure that the differential settlements between foundations are within specified limits, are also discussed. Key words: Skydome, shale, clay seams, plate loading tests, rock-mass modulus, size effect, layered rocks.


2021 ◽  
Vol 2076 (1) ◽  
pp. 012019
Author(s):  
Shaoan Li ◽  
Wenxia Li ◽  
Yunlei Hu ◽  
Tao Zhang ◽  
Xiangchao Shi

Abstract The single sample method allows the mechanical parameters of rocks to be obtained with very few rock samples; however, the method has not been widely used. This is mainly because the yield point of the single sample method is more difficult to control than the conventional triaxial compressive test and the effect of the different control methods on the measured data is not well understood. The single sample method obtains the strength parameters of the rock by loading a single rock sample with multiple stages of confining pressure. Multistage loading tests are divided into peak strength control and long-term strength control according to yield point control. In this study, multistage loading tests of sandstone were carried out to obtain strength parameters using long-term strength control. The results show that sandstones undergo seriously brittle damage in conventional triaxial compressive tests. Although the sandstones have been rigorously selected, they still vary considerably, and long-term strength points are more difficult to control. The error of strength parameters of sandstone obtained using the single sample method may exceed 20% compared to those obtained by conventional triaxial compressive tests. So this method must be used with caution for sandstones.


2007 ◽  
Vol 26-28 ◽  
pp. 341-344
Author(s):  
Jeong Hun Nam ◽  
Seung Sik Lee ◽  
Soon Jong Yoon ◽  
Dong Min Ok ◽  
Ju Bum Kim

This paper presents the results of experimental and analytical investigations on the behavior of GFRP pipes used in the water supply pipeline systems. The pipes consist of two filament wound outer GFRP tubes and polymer mortar between the tubes. Parallel plate loading tests were conducted and the test results were compared with predicted results. The load-deflection prediction was conducted by the FE analysis and the conventional strength of materials approach. It was shown that the results obtained by the experiment and analysis were agreed well.


2017 ◽  
Vol 753 ◽  
pp. 65-70
Author(s):  
Sun Hee Kim ◽  
Soon Jong Yoon ◽  
Won Chang Choi

In this paper, the results of experimental and analytical investigations pertaining to the structural behavior of glass fiber reinforced polymer plastic (GFRP) pipes are presented. GFRP is assumed as an orthotropic material. Mechanical properties along the longitudinal and hoop direction of the pipes are determined by the tension and compression tests. The parallel plate loading tests for the GFRP pipes were conducted to findthe relation between load and ring deflection. Inaddition, the finite element analysis (FEA) for the GFRP pipes was conducted using the material properties obtained from test in the study. The numerical results obtained by the finite element method show good agreement with the parallel plate loading test results for GFRP pipes.


Author(s):  
Ali Firat Cabalar ◽  
Mohammed Dafer Abdulnafaa ◽  
Volkan Isbuga
Keyword(s):  

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