Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analysis of tunnel failure characteristics under multiple explosion
  loads based on persistent homology-based machine learning   The study of tunnel failure characteristics under the load of external
explosion source is an important problem in tunnel design and protection, in
particular, it is of great significance to construct an intelligent topological
feature description of the tunnel failure process. The failure characteristics
of tunnels under explosive loading are described by using discrete element
method and persistent homology-based machine learning. Firstly, the discrete
element model of shallow buried tunnel was established in the discrete element
software, and the explosive load was equivalent to a series of uniformly
distributed loads acting on the surface by Saint-Venant principle, and the
dynamic response of the tunnel under multiple explosive loads was obtained
through iterative calculation. The topological characteristics of surrounding
rock is studied by persistent homology-based machine learning. The geometric,
physical and interunit characteristics of the tunnel subjected to explosive
loading are extracted, and the nonlinear mapping relationship between the
topological quantity of persistent homology, and the failure characteristics of
the surrounding rock is established, and the results of the intelligent
description of the failure characteristics of the tunnel are obtained. The
research shows that the length of the longest Betty 1 bar code is closely
related to the stability of the tunnel, which can be used for effective early
warning of the tunnel failure, and an intelligent description of the tunnel
failure process can be established to provide a new idea for tunnel engineering
protection.

8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn