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: red-sandstone; large-scale field test; mechanical characteristic; strength parameter ... physical properties of specimens Fig.2 Sketches of field test: (a) Specimen excavation; (b) Test device installation 2.3 Load and unload procedure After the test devices were installed......
test system of gob temperature field was constructed, and the relative error between simulated and measured value was no greater than 9.6%, which verified the effectiveness of the proposed model...Temperature field simulation of gob influenced by atmospheric pressureWANG Gang(王刚)1,2, LUO Hai-zhu(罗海珠)2, LIANG Yun-tao(梁运涛)2, WANG Ji-ren(王继仁)1(1. College of Safety Science and Technology, Liaoning......
two adjacent horizontal wells (well Yangping-1 and well Yangping-2 located in Longdong area of China Changqing Oilfield) as field test wells. And simultaneous fracturing optimal design of two adjacent horizontal wells was finished and employed in field test. Micro-seismic monitoring analysis of fracture propagation during the stimulation treatment shows that hydraulic fractures present a pattern......
coefficient and the F statistical test of "the index of advantage degree of ore-formation-mineralization distribution" can be solved. The scatter pattern for the metallogenic influence field fF_D3...J. Cent. South Univ. Technol. (2011) 18: 196-207 DOI: 10.1007/s11771-011-0680-z Field analysis of metallogenic information and its application MAO Xian-cheng(毛先成)1, 2, HU Chao(胡超)1, ZHOU Shang......
and after electric field treatment were examined by both optical microscope (OLYMPUS GX71) and transmission electron microscope (TECNAI G2) with the acceleration voltages of 200 kV. Tensile test... Effects of electric field treatment on microstructures ofGH4199 superalloy after long-term aging LIU Yang(刘 杨)1, WANG Lei(王 磊)1, WANG Shuai(王 帅)1,QIAO Xue-ying(乔雪璎)2, WANG Yan-qing(王延庆)2 1. Key......
J. Cent. South Univ. Technol. (2011) 18: 642-649 DOI: 10.1007/s11771-011-0742-2 Design and implementation of model test installation of heave compensation system of deepsea mining HU Qiong(胡琼)1... Abstract: In order to validate the simulation model and develop heave compensation control strategy, heave compensation model tests were performed. The model test installation includes the mining ship......
contraction on setup of expanded-base pile was carried out, while a field test was introduced. The parametric study shows that the decrements in radial pressure and the maximum pore water pressure... contraction are 2.5-3.0 times the measured values.Key words:expanded-base pile; setup; cavity contraction; numerical solution; field test......
-anchored suspension bridge under static and dynamic vehicle loads. Based on the field test using 12 heavy trucks and finite element simulations, the static deformations of different components, stress... and dynamic response analysis of the similar extra-wide suspension bridges. Key words: self-anchored suspension bridge; extra-wide girder; field test; simulation; vehicle loads; increments......
, Singapore) Abstract: The proposed prediction model for estimating the maximum rebound ratio was applied to a field explosion test, Mandai test in Singapore. The estimated possible maximum peak particle...; joint stiffness; field explosion test 1 Introduction When a blasting wave originating from a borehole propagates in rock masses with multiple parallel joints (supposing there are not any more......
disc test and the corresponding stress field [J]. Rock Mechanics and Rock Engineering, 2013, 46(5): 959-980. DOI: 10.1007/s00603- 012-0351-x. [37] ZHU W C, BAI Y, LI X B, NIU L L, Numerical simulation... J. Cent. South Univ. (2020) 27: 2899-2913 DOI: https://doi.org/10.1007/s11771-020-4517-5 Brazilian disc test study on tensile strength-weakening effect of high pre-loaded red sandstone under......
