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°, the code method is more suitable.Key words:tunnel; shallow buried tunnel; unsymmetrical loading; ultimate analysis method; upper bound solution... of the derived upper bound method for surrounding rock pressure of shallow unsymmetrical loading tunnels are relatively close to those of the existing "code method" and test results, which means......
analysis of retaining walls employing upper bound method. The algorithm can be utilized to design and check the external and internal stability of the wall based on the proposed mechanism. One of the main..., especially during the seismic analysis. In 2010, LI et al [16] assumed a failure block on a gravity wall and utilized the upper bound method to examine the wall stability against sliding. In 2011, DI......
assessing the seismic stability of gravity retaining walls with the pattern of pure rotation. In the framework of upper bound theorem of limit analysis, pseudo-static method was applied into two groups...Upper bound seismic rotational stability analysis of gravity retaining walls considering embedment depthLiu Jie(刘杰)1, 2, Huang Da(黄达)1, 3, Yang Chao(杨超)1, Sun Sha(孙莎)4(1. School of Civil Engineering......
) Comparison with analytical method Table 5 presents the supporting pressures calculated by the upper bound limit analysis and Promojiyfakonov theory for the case of γ=20 kN/m3, h=l=10 m, φ=18. As seen... the supporting pressures calculated by the upper bound limit analysis and numerical method by FLAC3D for the case of γ=17 kN/m3, h=l=10 m, φ=18 and c varying from 10 kPa to 50 kPa. The results between......
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mathematical method. Subsequently, according to the energy consumption calculation method of the upper bound theorem of limit analysis, the work rate of external forces and internal energy dissipation can... method meets the practical need. 5.2 Comparison between solutions of ultimate pullout capacity Pu by variation method and upper bound method 5.2.1 Upper bound analysis of ultimate pullout capacity......
is excavated in deep strata. Limit analysis, a method to bracket the actual solution in a certain range by using upper and lower bound theorems, is proved to be an effective method for analyzing... engineering are solved successfully by this method, some authors attempted to estimate the lower and upper bound stability solutions of tunnel in the framework of limit analysis theory [4-5]. Applying upper......
force of deep tunnel was calculated under pore water pressure. The calculations were based on limit analysis method of upper bound theory, with the employment of non-associated Mohr-Coulomb flow rule...Upper bound analysis for deep tunnel face with joined failure mechanism of translation and rotationXU Jing-shu(许敬叔), DU Dian-chun(杜佃春), YANG Zi-han(杨子汉)(School of Civil Engineering, Central South......
in sand [17], ultimate bearing capacity of foundations [18-21], and shallow tunnel stability problems [22-24]. Combined with upper bound theorem of limit analysis, the relationship between... relationship 3 Factor of safety for tunnel by limit analysis-strength reduction technique According to the definition of strength reduction technique and upper bound theorem, the factor of safety......