爆破荷载作用下岩质边坡稳定性研究进展

发布时间：2018-10-14 09:21

【摘要】：爆破荷载是导致边坡失稳的重要外部因素。与土质边坡相比,由于节理面的存在,爆破荷载下岩质边坡稳定性研究更加复杂。综述节理对爆破应力波传播特性的影响规律以及爆破荷载作用下岩质边坡数值计算要点,并从岩质边坡自身特点、爆破应力波振动特性以及爆破荷载与其他外界因素耦合3方面详述岩质边坡动力稳定性研究现状,总结得出节理力学性质及分布,爆破应力波振动速度、频率及其衰减规律等因素是岩质边坡极其重要的稳定因素。最后,对爆破荷载作用下岩质边坡稳定性研究进行展望,为进一步深入研究奠定基础。
[Abstract]:Blasting load is an important external factor leading to slope instability. Compared with soil slope, the stability of rock slope under blasting load is more complicated because of the existence of joint surface. The influence of joints on the propagation characteristics of blasting stress wave and the main points of numerical calculation of rock slope under blasting load are summarized, and the characteristics of rock slope itself are discussed. The vibration characteristics of blasting stress wave and coupling of blasting load with other external factors are described in detail in this paper. The mechanical properties and distribution of joint and vibration velocity of blasting stress wave are summarized. Frequency and attenuation law are the most important stability factors of rock slope. Finally, the stability of rock slope under blasting load is prospected, which lays a foundation for further study.
【作者单位】：北京城市学院城市建设学部;中国航天系统科学与工程研究院;北京科技大学土木与资源工程学院;
【基金】：国家自然科学基金项目(编号:51174014) 科技北京百名领军人才培养工程项目(编号:Z151100000315014) 国家青年科学基金项目(编号:51504016)
【分类号】：TD235

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