The mechanical behavior of opencut
prefabricated tunnel structures is complex, the internal force conversion is
frequent in the construction process, and there are multiple influencing
factors and no mature analytical methods for a better understanding of the
structure for future reference. Accordingly, key analytical ideas and
conditions and load action are put forward in terms of the factors affecting
the force, deformation, and stability of the structural system. As for the main
influencing factors, such as joint stiffness, stratum constraint, foundation
pit supporting system, foundation pit manure groove backfilling, and assembly
error, the determination method and key points of calculation and analysis of
the model are discussed. It is emphasized that it is necessary to analyze the
effect of the actual work from construction to use, and reasonable means and
methods should be considered regarding the influence of various elements and
construction processes in the actual engineering design. The proposed multiple
iteration analysis method is accurate and quick in analyzing the overall action
of the prefabricated tunnel structure with a variable stiffness joint.
YANG Xiuren
,
HUANG Meiqun
.
Calculation and Analysis Method of Overall Action
Effect of OpenCut Prefabricated
Tunnel Structures
[J]. Tunnel Construction, 2022
, 42(3)
: 372
-377
.
DOI: 10.3973/j.issn.2096-4498.2022.03.004
