ty -jour a2 -Zhang,hualei au -yu,banyong au -pan,shucai au -xu,xu,kaisheng py -2020 da -2020/11/12 ti-颗粒粉碎和饱和挤压螺栓的颗粒粉碎和形态演化,在压实下-2020 AB-在这项研究中,通过执行一系列实验室,研究了在可变轴向应力下(0、2、4、8、12、16和20 MPa)在可变轴向应力(0、2、4、8、12、16和20 MPa)下的变形,颗粒粉碎和形态演变使用我们的自设计压实设备进行测试。研究结果表明,压缩模量与轴向应力之间的关系可以通过指数函数表示。相对破裂从0到0.3685不等,随着轴向应力的增加而单调增加。相对断裂和轴向应变之间的关系通过线性函数描述。颗粒圆度从1.179到1.361不等,随着轴向应力的增加而逐渐减少。当轴向应力从0 MPa增加到2 MPa时,相对破裂迅速增加了总升高的39.15%以上,并且大颗粒的粒子循环在15-20 mm的范围内急剧急剧下降,占总数的48.34%以上减少。2 MPa是控制压实过程中饱和碎屑螺栓的颗粒粉碎的关键值。 Particle crushing was predominantly divided into three types: fracture, crushing, and grinding. At the early stage of compaction, fracture and crushing took place in large numbers. At the end, grinding was the main form of particle crushing. The axial strain was influenced by the initial gradation, and a larger Talbot exponent corresponded to a larger strain. However, the initial gradation had little effect on the relative breakage. SN - 1687-8086 UR - https://doi.org/10.1155/2020/8839302 DO - 10.1155/2020/8839302 JF - Advances in Civil Engineering PB - Hindawi KW - ER -