Engineering geological characterization and comparison of predicted and measured deformations of a cavern in the Italian Alps

Sapigni, Michele; Barbera, Giovanni; Ghirotti, Monica

doi:10.1016/s0013-7952(02)00247-8

Cited by 19 publications

(6 citation statements)

References 17 publications

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“…To improve the performance of particle swarm optimisation, inertia weight was adjusted according to the following equation [3]:…”

Section: Particle Swarm Optimisationmentioning

confidence: 99%

“…Based on many years of experience, Rabcewicz [1] of Austria proposed the famous New Austria Tunnel Method (NATM), which definitely pointed out the importance of surrounding rock deformation on tunnel construction. In fact, observation and control of surrounding rock displacement is the primary objective of the tunnel construction process [2,3]. Tezuka and Seoka [4] systematically introduced the latest technologies for engineering underground excavations in Japan and emphasised the "redesign" concept in the excavation process.…”

Section: Introductionmentioning

confidence: 99%

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Feedback analysis of tunnel construction using a hybrid arithmetic based on Support Vector Machine and Particle Swarm Optimisation

Jiang

Wang

Tang

2011

Automation in Construction

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“…To improve the performance of particle swarm optimisation, inertia weight was adjusted according to the following equation [3]:…”

Section: Particle Swarm Optimisationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Feedback analysis of tunnel construction using a hybrid arithmetic based on Support Vector Machine and Particle Swarm Optimisation

Jiang

Wang

Tang

2011

Automation in Construction

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“…Pumping-induced land subsidence and earth fissures have been observed in many places in America, Asia, Africa and Europe and documented in the literature (Rudolph et al 1991;Lee et al 1996;Allis 2000;Ngecu and Nyambok 2000;Sapigni et al 2003;Holzer and Galloway 2005). Feth (1951) and Jachens and Holzer (1979) suggested that differential subsidence is the primary mechanism through which earth fissures are formed.…”

Section: Introductionmentioning

confidence: 99%

Earth fissures in Qinglong Graben in Yuncheng Basin, China

et al. 2018

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Qinglong Graben is located in southeastern Yuncheng Basin, China flanked by two northeast trending normal faults, where the geological condition is favourable for generating earth fissures. Since 1978, five earth fissures have formed in Qinglong Gaben. In the present work, a series of geological investigation consisting of site investigation, geological drilling and trench excavation was used to characterise and determine the reasons for the formation of the earth fissures. The site investigation indicated that the trend of the five earth fissures are parallel to the general strike of the normal fault, i.e., geological drilling and trench studies revealed that syn-sedimentary fault is the key reason for the formation of the earth fissures. Additionally, over-exploitation of groundwater and erosion process are important factors in the development and expansion of the earth fissures in Qinglong Graben. The earth fissures forming process in Qinglong Graben can be divided into three stages: the regional extension first caused normal faults under the surface, and then the pumping action of excessive groundwater induced the normal faults propagate to the surface, and finally the erosion promoted the formation of the current earth fissure.

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“…The violent release of high energy stored inside rock mass will cause damage or even failure of the surrounding rock, which is often accompanied by typical deep buried engineering disasters such as rockburst, spalling and stress-structural collapse (Feng et al., 2022; He et al., 2021; Kaiser and Moss, 2022; Li et al.,2022; Su et al., 2019). The mechanical model derived from experimental results of rock properties under uniaxial and conventional triaxial loadings has been successfully used to analyse the stability of surface and shallow underground engineering (Han et al., 2023; Sapigni et al., 2003; Shen et al., 2022; Tang et al., 1998; Zhang et al., 2022; Zheng et al., 2022). At present, research on the rock mechanical properties under true triaxial stress states is not mature, the understanding is not sufficient, and the mechanical theory suitable for the stability analysis of deep buried underground engineering under high geostress based on this understanding is very scarce.…”

Section: Introductionmentioning

confidence: 99%

A novel meso-damage constitutive model of rock under true triaxial stress with three-dimensional cracking strength, threshold and closure effect

Zheng,

Zhou,

et al. 2023

International Journal of Damage Mechanics

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Deep underground engineering is in a true three-dimensional stress state, and the adjustment of the three-dimensional stress state caused by engineering excavation will induce the fracture or even instability of the surrounding rock. However, three-dimensional mechanical model research suitable for the stability analysis of deep surrounding rock is very scarce. Therefore, a series of tests under different true triaxial stresses on two rocks (rhyodacite and marble) were conducted, and the characteristic strength (crack stable propagation initiation stress, crack unstable propagation initiation stress and peak strength) and deformation characteristics were further analyzed. After that, using the Lemaitre strain equivalence hypothesis and rock statistical damage theory, a new statistical damage constitutive model at true triaxial stress states was proposed, which introduced the three-dimensional strength criterion Modified Wiebols Cook to characterize the three-dimensional strength of the rock microelement. Therefore, the intermediate principal stress can be reasonably considered. The damage threshold, initial compaction effect and residual strength of the rock microelement at different true triaxial stress conditions were also considered. Then the relationships between the proposed model parameters and σ2 and σ3 were analyzed. Furthermore, sensitivity analysis of the influence of parameters m and F0 in proposed model on the shape of rock stress–strain curve and peak strength was also investigated. The comparison between the results predicted by proposed model and the experimental data shows that the new model established in this study can well simulate the prepeak and postpeak deformation characteristics of rock and the intermediate principal stress effect under true triaxial stress conditions.

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Engineering geological characterization and comparison of predicted and measured deformations of a cavern in the Italian Alps

Cited by 19 publications

References 17 publications

Feedback analysis of tunnel construction using a hybrid arithmetic based on Support Vector Machine and Particle Swarm Optimisation

Feedback analysis of tunnel construction using a hybrid arithmetic based on Support Vector Machine and Particle Swarm Optimisation

Earth fissures in Qinglong Graben in Yuncheng Basin, China

A novel meso-damage constitutive model of rock under true triaxial stress with three-dimensional cracking strength, threshold and closure effect

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