Ultrasonic experiment and mechanical properties of rock and soil mixture under triaxial deformation
Ultrasonic experiment and mechanical properties of rock and soil mixture under triaxial deformation
复制标题
三轴变形下岩土混合体超声试验及力学特性
DOI:
10.1007/s12517-019-4933-8
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发表时间:
2019-12
影响因子:
--
通讯作者:
Qin Xiaotong
中科院分区:
文献类型:
--
作者:
Cui Kai;Qin Xiaotong
In this paper, the author discussed the real-time ultrasonic experiment and mechanical properties of rock and soil mixture (RSM) in three-axis deformation. Both rock block percentages (RBPs) and confining pressure have a significant influence on the mechanical and ultrasonic properties of RSM. The structure control mechanism of RSM is essentially the interactions between the soil matrix and rock blocks. The experiment result shows that with the increase of RBP, the peak strength of RSM increases when the soil matrix has the same compactness. Stress skip is a special phenomenon during the deformation; this phenomenon becomes obvious with increasing RBP. In addition, the confining pressures acted on the specimens also play an important role in generating stress skip. Specimens with different rock percentage failed by a combination of shear and bulging failures, and the number of macrocracks increases with the increase of rock blocks in RSM specimens. At lower RBP, failure mechanism is dominantly controlled by shear failure pattern; at higher RBP, failure mechanism is primary controlled by bulging failure.
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DOI:
--
发表时间:
2012-05
期刊:
--
影响因子:
--
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DOI:
10.1080/19648189.2016.1217791
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DOI:
10.1016/0148-9062(82)91152-4
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1982-06
期刊:
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts
影响因子:
--
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DOI:
10.1590/1980-5373-mr-2015-0104
发表时间:
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影响因子:
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通讯作者:
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DOI:
10.1029/gm024p0161
发表时间:
2013-03
期刊:
--
影响因子:
--
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通讯作者:
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