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Conceptualization and preliminary study of engineering disturbed rock dynamics
Geomechanics and Geophysics for Geo-Energy and Geo-Resources ( IF 5 ) Pub Date : 2020-03-24 , DOI: 10.1007/s40948-020-00157-x
Heping Xie , Jianbo Zhu , Tao Zhou , Kai Zhang , Changtai Zhou

Many large engineering projects, e.g., the Sichuan–Tibet Railway, inevitably cross the earthquake active areas and the geology complicated zones, facing the challenges of dynamic disturbances and disasters. In view of this, the conceptualization of engineering disturbed rock dynamics is proposed in this paper, aiming to systematically study the rock dynamic behavior and response subjected to engineering disturbances, to establish the 3D rock dynamic theory, and to develop the disaster prevention and control technical measures. The classification standards of rock loading states based on strain rate are summarized and analyzed. The engineering disturbed rock dynamics is defined as the theoretical and applied science of rock dynamic behaviors, dynamic responses and their superposition caused by dynamic disturbances during engineering construction and operation periods. To achieve the goals of the proposed engineering disturbed rock dynamics, a combined methodology of theoretical analysis, laboratory experiment, numerical simulation and in situ tests is put forward. The associated research scopes are introduced, i.e., experimental and theoretical study of engineering disturbed rock dynamics, wave propagation, attenuation and superposition in rock masses, rock dynamic response of different loading conditions, dynamic response of engineering projects under construction disturbance and disaster mitigation techniques, and dynamic response of major engineering projects under operation disturbance and safety guarantee measures. Some theoretical, experimental and field preliminary studies were performed, including dynamic behavior of disturbed rock at varied depth and strain rates, dynamic response of rock mass subjected to blasting excavation disturbance and dynamic drilling disturbance, and disturbance of rock mass subjected to TBM excavation. Preliminary results showed that the rock masses are significantly disturbed by dynamic disturbances during construction and operation periods of engineering projects. The innovative conceptualization of engineering disturbed rock dynamics and the expected associated outcomes could facilitate establishing the 3D rock dynamic theory and offering theoretical fundamentals and technical guarantees for safety and reliability of the design, construction and operation of modern large engineering.

中文翻译:

工程扰动动力学的概念化和初步研究

许多大型工程项目,例如川藏铁路,不可避免地要穿越地震活跃地区和地质复杂地区,面临着动态扰动和灾害的挑战。有鉴于此,本文提出了工程扰动岩石动力学的概念,旨在系统地研究工程扰动引起的岩石动力学行为和响应,建立3D岩石动力学理论,发展防灾技术。措施。总结和分析了基于应变率的岩石加载状态分类标准。工程扰动的岩石动力学定义为岩石动力学行为的理论和应用科学,工程建设和运营期间动力扰动引起的动力响应及其叠加。为了达到所提出的工程扰动岩石动力学的目标,提出了理论分析,实验室实验,数值模拟和现场测试相结合的方法。介绍了相关的研究范围,例如工程扰动岩石动力学,岩体中波传播,衰减和叠加,不同载荷条件下的岩石动力响应,工程项目在施工扰动和减灾技术下的动力响应的实验和理论研究,运营扰动和安全保障措施下重大工程动态响应 从理论上讲 进行了实验和现场初步研究,包括扰动岩石在不同深度和应变率下的动力特性,爆破开挖扰动和动态钻井扰动引起的岩体动力响应以及TBM开挖引起的岩体扰动。初步结果表明,在工程建设和运营期间,岩体受到动态扰动的干扰很大。工程上受扰动的岩石动力学的创新概念化以及预期的相关成果可以促进建立3D岩石动力学理论,并为现代大型工程设计,施工和运行的安全性和可靠性提供理论基础和技术保障。包括不同深度和应变率下扰动岩石的动力特性,爆破开挖扰动和动态钻井扰动引起的岩体动力响应以及TBM开挖引起的岩体扰动。初步结果表明,在工程建设和运营期间,岩体受到动态扰动的干扰很大。工程上受扰动的岩石动力学的创新概念化以及预期的相关成果可以促进建立3D岩石动力学理论,并为现代大型工程设计,施工和运行的安全性和可靠性提供理论基础和技术保障。包括不同深度和应变率下扰动岩石的动力特性,爆破开挖扰动和动态钻井扰动引起的岩体动力响应以及TBM开挖引起的岩体扰动。初步结果表明,在工程建设和运营期间,岩体受到动态扰动的干扰很大。工程上受扰动的岩石动力学的创新概念化以及预期的相关成果可以促进建立3D岩石动力学理论,并为现代大型工程设计,施工和运行的安全性和可靠性提供理论基础和技术保障。爆破开挖扰动和动钻动扰动对岩体的动力响应以及TBM开挖对岩体的扰动。初步结果表明,在工程建设和运营期间,岩体受到动态扰动的干扰很大。工程上受扰动的岩石动力学的创新概念化以及预期的相关成果可以促进建立3D岩石动力学理论,并为现代大型工程设计,施工和运行的安全性和可靠性提供理论基础和技术保障。爆破开挖扰动和动钻动扰动对岩体的动力响应以及TBM开挖对岩体的扰动。初步结果表明,在工程建设和运营期间,岩体受到动态扰动的干扰很大。工程上受扰动的岩石动力学的创新概念化以及预期的相关成果可以促进建立3D岩石动力学理论,并为现代大型工程设计,施工和运行的安全性和可靠性提供理论基础和技术保障。初步结果表明,在工程建设和运营期间,岩体受到动态扰动的干扰很大。工程上受扰动的岩石动力学的创新概念化以及预期的相关成果可以促进建立3D岩石动力学理论,并为现代大型工程设计,施工和运行的安全性和可靠性提供理论基础和技术保障。初步结果表明,在工程建设和运营期间,岩体受到动态扰动的干扰很大。工程上受扰动的岩石动力学的创新概念化以及预期的相关成果可以促进建立3D岩石动力学理论,并为现代大型工程设计,施工和运行的安全性和可靠性提供理论基础和技术保障。
更新日期:2020-03-24
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