2020
DOI: 10.1007/s40948-020-00157-x
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Conceptualization and preliminary study of engineering disturbed rock dynamics

Abstract: 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 te… Show more

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Cited by 97 publications
(26 citation statements)
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“…e strain rate is the strain that occurs in the sample per unit time. According to the type of loading test machine and the mechanical state of rock, strain rate can be divided into creep, static/quasistatic, quasidynamic, dynamic, impact, and so on, as shown in Figure 1 [31][32][33]. According to Li's research results, the loading rate in quasistatic range is studied in this paper.…”
Section: Methodsmentioning
confidence: 99%
“…e strain rate is the strain that occurs in the sample per unit time. According to the type of loading test machine and the mechanical state of rock, strain rate can be divided into creep, static/quasistatic, quasidynamic, dynamic, impact, and so on, as shown in Figure 1 [31][32][33]. According to Li's research results, the loading rate in quasistatic range is studied in this paper.…”
Section: Methodsmentioning
confidence: 99%
“…During construction and operation of major engineering projects, for example, civil engineering, mining engineering, hydraulic engineering, and petroleum engineering, the structures built in or on rock mass not only bear the complex in situ conditions, for example, stress, seepage, faulting, and thermal and chemical coupling, but also often encounter a variety of dynamic disturbances (e.g., blasting, TBM excavation, hydraulic fracturing, geological drilling, and rockburst during engineering construction, natural earthquakes, driving loads, sequential explosions, or even military attacks during engineering operation), whose strain rate is over the threshold value. 5,[194][195][196][197] Therefore, understanding the responses of flawed rocks to engineering disturbances, especially the dynamic strength and dynamic crack propagation characteristics, is essential to guarantee the reliability and safety of engineering projects during construction and operation periods. 5,198 Although rock masses are often subjected to dynamic disturbances, the mechanical and volumetric fracturing behavior of rock under dynamic loading is still poorly understood.…”
Section: Investigation Of Dynamic Crack Propagation In Flawed Rocksmentioning
confidence: 99%
“…5,[194][195][196][197] Therefore, understanding the responses of flawed rocks to engineering disturbances, especially the dynamic strength and dynamic crack propagation characteristics, is essential to guarantee the reliability and safety of engineering projects during construction and operation periods. 5,198 Although rock masses are often subjected to dynamic disturbances, the mechanical and volumetric fracturing behavior of rock under dynamic loading is still poorly understood. This is mainly because the rock dynamics theories are still at its infancy in spite of extensive previous efforts devoted to rock dynamics.…”
Section: Investigation Of Dynamic Crack Propagation In Flawed Rocksmentioning
confidence: 99%
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“…Once the ground collapse happens in the karst terrain, it may cause great casualties and economic losses [3][4][5][6][7]. Recently, more and more efforts have been made in the development and utilization of underground space, and thousands of tunnels have been constructed in karst terrain all over the world, resulting in the fact that hundreds of ground collapses caused by tunnel construction have happed [8][9][10]. For example, the construction of the Jinshazhou tunnel on the Wuhan-Guangzhou railway led to 19 ground collapses in the Jinshazhou area in Guangzhou, Guangdong Province in the Southern Karst region of China.…”
Section: Introductionmentioning
confidence: 99%