2024
DOI: 10.3390/app14052079
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Sensitivity Analysis of Influencing Factors of Karst Tunnel Construction Based on Orthogonal Tests and a Random Forest Algorithm

Bo Wu,
Wentao Sun,
Guowang Meng

Abstract: To conduct a sensitivity analysis of the relevant parameters that impact the mechanics of tunnel construction in karst areas, firstly, the orthogonal design and range analysis method is applied to sort the 11 kinds of karst-tunnel-influencing factors from high to low according to the sensitivity degree. Secondly, the random forest algorithm based on an orthogonal experimental design is applied to the feature importance ranking of the influencing factors of karst tunnels. Thirdly, according to the results of th… Show more

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Cited by 2 publications
(2 citation statements)
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“…The external power of each block in this karst deep tunnel construction model under self-weight is obtained by multiplying the area of the block with its self-weight. In Figure 2a,b, the expression W ex−1−1 of the external power of the triangle masses D a,0 D a,1 D ′ a,1 , D a,0 D a,m F a,0 and D a,0 D ′ a,m−1 F a,1 at their self-weight is presented by expression (31).…”
Section: Power Of External Workmentioning
confidence: 99%
See 1 more Smart Citation
“…The external power of each block in this karst deep tunnel construction model under self-weight is obtained by multiplying the area of the block with its self-weight. In Figure 2a,b, the expression W ex−1−1 of the external power of the triangle masses D a,0 D a,1 D ′ a,1 , D a,0 D a,m F a,0 and D a,0 D ′ a,m−1 F a,1 at their self-weight is presented by expression (31).…”
Section: Power Of External Workmentioning
confidence: 99%
“…Thirdly, the analytical solution for calculating the probability of failure and the reliability index of karst tunnel engineering with cavities located ahead of the tunnel working surface could be applied to practical engineering. The study could analyze the quantitative assessment of the influencing factors [31] on the construction safety and reliability of these deeply buried karst tunnels.…”
Section: Introductionmentioning
confidence: 99%